JP5250488B2 - Injection method support processing apparatus, injection method support processing method, and injection method - Google Patents

Description

  The present invention relates to an injection method support processing apparatus, an injection method support processing method, and an injection method suitable for injection construction such as a double-pipe double packer type in consideration of hole bending.

  Conventionally, in the construction of civil engineering and building structures, for the purpose of increasing the ground support capacity, deforming the ground (sinking, swelling, protruding), reducing or eliminating water pressure and water permeability, maintaining and enhancing durability, etc. The soft ground has been improved.

  Here, the soft ground is not limited to a specific ground, but is determined by the relative nature of the structure to be built and the nature of the ground, so it is not uniquely determined. Generally, it is a generic term for silt or clay with fine soil particles and a large pore ratio, special soil such as peat with extremely high compressibility, and loose sand ground with a high groundwater level that tends to liquefy during an earthquake.

  One of the ground improvement methods is the double pipe double packer type injection method. This method is a typical injection method, in which an injection outer tube having a plurality of injection ports in the axial direction is fixed in a ground to be improved with a sleeve grout such as cement bentonite (CB) liquid, and then gel The target ground is improved by injecting an injection material (relaxation material) having a long formation time from each injection port.

  In this method, solidification material is injected from a plurality of injection outer pipes built in the target ground, respectively, and the entire target area is improved. Therefore, a plurality of injection holes are formed in the target ground region.

  However, in the drilling work for forming this kind of hole in the ground, the hole is often bent due to the properties of the ground, the distribution of hardness and softness, the presence of obstacles, and the like. If the hole is bent, it is difficult to correct it.

  Therefore, the actual inlet position is deviated from the designed inlet position, and when the solidifying material is injected from each inlet as originally designed, the solidifying material cannot be uniformly injected into the ground to be improved. Problems can arise.

  Therefore, at present, a three-dimensional model representing the actual positional relationship of each injection port is constructed, and the total design injection amount for each injection zone obtained by dividing the target ground region into multiple stages in the vertical direction is located in each injection zone. An apparatus and a method for optimally distributing the injection ports according to the positional relationship between the plurality of injection ports are developed (see, for example, Patent Document 1).

  However, this apparatus and method are based on the premise that an outer injection pipe is built in the vertical direction (longitudinal direction) in the target ground region, and a plurality of injection ports located in each injection zone in which the target ground region is divided at predetermined depths. Is weighted, and the amount of solidified material injected is distributed according to this weight. Therefore, as shown in FIG. 2, it is difficult to cope with a case where a plurality of rows (stages) of injection outer tubes are built in the lateral direction, particularly when a plurality of rows of injection outer tubes are not built in parallel in the vertical direction. Further, in recent years, a technique for building the outer injection tube in a curved shape instead of a straight shape has been developed. However, according to the conventional technology, it is difficult to cope with such a case.

Japanese Patent No. 4062683

  The main problem to be solved by the present invention is an injection method support processing apparatus and an injection method support that can uniformly inject a solidified material into the ground area to be improved regardless of the direction in which the injection outer pipe is installed. The object is to provide a treatment method and an injection method.

The present invention that has solved this problem is as follows.
[Invention of Claim 1]
A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method support processing apparatus that performs the support process for an injection method that improves the entire target ground region by injecting,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is provided an injection amount information creation device for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing apparatus characterized by that.

[Invention of Claim 2]
An injection in which a plurality of injection holes are formed in the target ground region and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then a plurality of packers are attached in the axial direction in the injection outer tube Injection for supporting the double pipe double packer type injection method that improves the entire target ground area by inserting an inner pipe and injecting solidified material into each ground from each inlet of the outer injection pipe Construction method support processing device,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is provided an injection amount information creation device for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing apparatus characterized by that.

[Invention of Claim 3]
The injection amount information creating means includes a correction device that corrects the solidification material injection amount information according to the sand quality of the injection mesh when creating the solidification material injection amount information from the total soil amount of the injection mesh.
The injection method support processing apparatus according to claim 1 or 2.

[Invention of Claim 4]
A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method support processing method for performing the support processing for the injection method for improving the entire target ground area by injecting,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing method characterized by the above.

[Invention of Claim 5]
An injection in which a plurality of injection holes are formed in the target ground region and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then a plurality of packers are attached in the axial direction in the injection outer tube Injection for supporting the double pipe double packer type injection method that improves the entire target ground area by inserting an inner pipe and injecting solidified material into each ground from each inlet of the outer injection pipe Construction method support processing method,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing method characterized by the above.

[Invention of Claim 6]
A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method for improving the entire target ground area by injecting,
In the case where the injection tube group in which the outer injection tubes are installed in parallel is installed in a plurality of rows,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from the respective inlets.
Install the first row of injection tube groups and the second row of injection tube groups,
At this stage, the solidification material injection amount information is created through the injection amount information creation step,
Based on this solidification material injection amount information, while injecting solidification material only from the first row of injection tube groups, while installing the third row of injection tube groups,
At this stage, the solidification material injection amount information is created through the injection amount information creation step for the injection mesh excluding the injection mesh held in the first row of injection tube groups,
Based on the solidification material injection amount information, the solidification material is injected only from the second row of injection tube groups, while the fourth row of injection tube groups is installed,
Thereafter, according to the number of columns of the injection tube group, creation of the solidification material injection amount information and injection of the solidification material and installation of the injection tube group are repeated.
An injection method characterized by that.

  According to the present invention, an injection method support processing apparatus, an injection method support processing method, and an injection method that can uniformly inject a solidified material into an improvement target ground region regardless of the direction in which the injection outer pipe is installed. Become.

It is a figure for demonstrating the injection method support processing apparatus and method of this form. It is a schematic diagram which shows the erection state of the injection outer tube. It is a figure for demonstrating an injection | pouring mesh and a soil quality. It is a flowchart for demonstrating the method to select a carrying inlet. It is a figure for demonstrating the construction procedure in case the injection pipe group by which an injection | pouring outer pipe is installed in parallel is installed in multiple rows.

Next, an embodiment of the present invention will be described.
The injection method support processing apparatus according to this embodiment relates to an injection method using a double-pipe double packer type, and includes an injection amount information creation device 40 as shown in FIG. The injection amount information creation device 40 takes in the injection hole information D1 as design position information from the design device 10 and the hole bending information D2 of the injection hole from the drilling device 20, and creates the injection amount information D3 to perform the injection work. This is a device given to the device 30.

  Here, the design apparatus 10 designs the drilling length, hole coordinates, injection step coordinates, chemical solution, injection amount, injection pressure, and the like. Further, the drilling length, hole coordinates, injection step coordinates, and the like are recorded on, for example, a recording medium as injection hole information (position information of the injection outer tube 3) D1. Furthermore, the chemical solution, the injection amount, the injection pressure, and the like are recorded as injection specification information, for example, on a recording medium.

  The drilling device 20 is a device that performs a drilling operation of the injection hole and measurement of the bending of the injection hole (for example, measuring a drilling path as three-dimensional displacement data from the hole opening). The hole drilling device 20 includes a hole drilling machine and a measuring instrument such as an in-hole inclinometer and a gyroscope. The hole bending information D2 of the injection hole measured by the measuring instrument is recorded on, for example, a recording medium. The hole bending measurement can be performed by inserting a measuring instrument into the injection hole itself at the time of drilling, but after inserting the injection outer tube 3 into the injection hole, the measuring instrument is inserted into the injection outer tube 3. Alternatively, the measurement can be performed while the measuring instrument is pulled back. In this embodiment, the hole bending information D2 of the injection hole is the same as the hole bending information of the injection outer tube 3.

  The injection construction device 30 is a device that performs the injection construction based on the injection amount information D3. The injection construction device 30 includes, for example, a chemical preparation plant, an injection pump, a flow rate pressure measurement device, an injection inner pipe, a packer pressurization pump, and the like. As the injection inner tube, for example, the same one as shown in FIG. 2 of the aforementioned Patent Document 1 can be used, and the injection inner tube of this embodiment is located between a pair of packers and the pair of packers. A solidifying material discharge port is provided.

  This injection construction is performed according to the following procedure. After inserting the injection inner tube into the injection outer tube 3 (see FIG. 2) built in each injection hole in advance and arranging a pair of packers so as to straddle each injection port 5 of the injection outer tube 3, In a state where the pair of packers are expanded and the upper and lower sides of the injection port 5 are sealed, the solidification material is discharged from the solidification material discharge port and injected into the surrounding ground through the injection port 5.

  Usually, injection is started from the injection port 5 formed at the forefront of the injection outer tube 3, and the injection inner tube is stepped up to the proximal end sequentially, and the solidified material is injected from each injection port 5 step by step. To do. At that time, the injection pressure for each unit time, the injection flow rate, and the injection amount for each step are recorded on the memory card or the like as injection data D4 by the flow pressure measuring device provided in the injection construction device 30. The injection outer tube 3 is provided with a rubber sleeve for preventing the solidified material or the like from flowing back from the injection port 5 so as to cover the injection port 5.

  The injection amount information creating device 40 is designed to have injection hole information (position information of the outer injection tube) D1 as design position information recorded on a recording medium or the like, and injection hole information recorded on the injection specification information or the recording medium. Based on the information D2 and the like, the actual position information of each injection port is calculated, and each of the injection meshes M based on the actual position information and the position information of each injection mesh M obtained by dividing the target ground region into a plurality of areas. , The inlet 5 located at the shortest distance is selected as the handling inlet, and based on this selection result, the total soil volume of the injection mesh M that each of the handling inlets 5 handles is calculated, and according to this total soil volume This is an apparatus for creating injection amount information D3 of the solidified material to be injected from each carrying injection port 5.

  The injection amount information creation device 40 includes, for example, an injection design data input unit 41, a hole bending data input unit 42, a database storage unit 43, an injection amount adjustment unit 44, an injection effect processing unit 45, an injection data input unit 46, an injection An effect plotting unit 47 and the like are provided.

  The injection design data input unit 41 inputs the injection hole information (position information of the outer injection tube) D1 and injection specification information recorded in the recording medium or the like into the database storage unit 43. The hole bending data input unit 42 is also for inputting the hole bending information D2 of the injection hole recorded in the recording medium or the like to the database storage unit 43.

  The database storage unit 43 is mounted, for example, in a personal computer (PC), and has injection hole information (position information of the outer injection pipe) D1, injection specification information, hole bending information D2, injection data D4. It is a device that constructs a database of

  The injection amount adjustment unit 44 calculates and provides the injection amount information D3 based on the database constructed in the database storage unit 43. The injection effect processing unit 45 performs an injection effect determination process. Here, prior to the determination process, an injection effect determination support diagram output condition is given. As injection condition determination support diagram output conditions, injection chemical solution, injection hole or arbitrary injection zone cross section, control chart output data (end injection pressure, flow rate, injection amount, etc.) and the like can be considered.

  The injection data input unit 46 gives injection data such as injection pressure per unit time, injection flow rate, and injection amount for each step recorded in a memory card or the like to the database storage unit 43.

  The injection effect plotting unit 47 plots the result of the injection effect determination process performed by the injection effect processing unit 45.

Next, the operation of the injection method support processing apparatus having such a configuration will be described.
First, as shown in FIG. 1, the injection hole information (position information of the outer injection tube) D1 and the injection specification information recorded on the recording medium or the like are input to the database storage unit 43 via the injection design data input unit 41. To do.

  Next, the injection hole is drilled by a drilling machine, and the bending of the injection hole is measured by a measuring instrument such as an in-hole inclinometer or a gyroscope. The method of drilling the injection holes is not particularly limited. For example, as is apparent from the built-in state of the injection outer tube 3 shown in FIG. In particular, it is also possible not to drill a plurality of rows (stages) of injection holes in parallel in the vertical direction. In the illustrated example, the distance between the injection holes adjacent to each other in the vertical direction is a form (protruding form) that increases from the base end side toward the distal end side.

  Next, the hole bending information D2 of the injection hole recorded on the recording medium or the like is input to the database storage unit 43 via the hole bending data input unit 42.

  Next, injection amount information D3 is created in the injection amount adjustment unit 44 composed of a personal computer (PC) or the like. In creating the injection amount information D3, first, the actual position information of each injection port 5 is based on the injection hole information (design position information of the injection outer tube) D1 and the hole bending information D2 of each injection outer tube 3. Is calculated. In calculating the actual position information of each inlet 5, for example, a distance from the hole of each inlet 5 is obtained in advance, and a drilling path obtained by measuring the distance and the bending of the inlet is obtained. It is possible to specify the point where the distance from the hole opening coincides with the actual position information.

  Next, based on the actual position information and the position information of each injection mesh M obtained by dividing the target ground region into a plurality of areas, the injection port 5 existing at the shortest distance is selected as the responsible injection port for each of the injection meshes M. To do.

  Here, in the present embodiment, the injection mesh M is a three-dimensional mesh obtained by dividing the target ground region (injection zone Z) vertically and horizontally as shown in FIGS. In this embodiment, the injection mesh M is a legislative body having a side of 10 cm. However, the present invention is not limited to this, and dimensions, shapes, and the like can be appropriately changed. In addition, regarding the position information of the injection mesh M, the position of the injection mesh M used as the position of the injection mesh M is not particularly limited. For example, as in the present embodiment, the injection mesh M has the center position of the injection mesh M. The position can be M. Further, each injection mesh M can have soil information along with this position information, and this soil information can be used when creating the injection amount information D3.

On the other hand, for each of the injection meshes M, the method / procedure for selecting the injection port 51 located at the shortest distance as the handling injection port is not particularly limited, and for example, it is selected through the following method / procedure. Can do.
That is, as shown in FIG. 4, first, an index i indicating the injection mesh M is set to 1. Next, the holding inlet 5 of the injection mesh Mi (i = 1) is the inlet P1 that performs the injection first (usually, the inlet 5 that is formed at the forefront of the injection outer tube 3 that performs the injection first). Assume that there is. That is, for the injection mesh Mi (i = 1), it is assumed that the injection port 5 located at the shortest distance is the injection port P1. Then, the distance between both is calculated from the position information of the injection mesh Mi (i = 1) and the actual position information (actual position information) of the injection port P1, and this calculated distance is stored as the shortest distance information.

  Next, the index k indicating the inlet 5 is set to 2. Then, the distance between both is calculated from the position information of the injection mesh Mi (i = 1) and the actual position information of the injection port Pk (k = 2), and the calculated distance information is the currently stored shortest distance information. Is determined (first determination). If the determination result is “Yes”, the held inlet 5 of the injection mesh Mi (i = 1) is changed to Pk (k = 2), and the calculated distance information is stored as the shortest distance information. When this change and storage are completed, or if the determination result is “No”, the index k indicating the injection port 5 is incremented by one (k = k + 1), and the injection port 5 to be determined is moved to the next. It advances to the injection port 5 which injects into.

  Next, it is determined whether or not the counted index k exceeds the total number n of the injection ports 5 (k> n) (second determination). If the determination result is “No”, the process returns to the first determination process and the same process is repeated. On the other hand, if the determination result is “Yes”, the index i indicating the injection mesh M is incremented by one (i = i + 1), and the process proceeds to the process of selecting the responsible injection port 5 of the next injection mesh Mi.

  Next, it is determined whether the counted index i exceeds the total number m of the injection meshes M (i> m) (third determination). If this determination result is “No”, the process returns to the process assuming that the held injection port 5 of the injection mesh Mi is the injection port P1 for the first injection, and the same processing is repeated. On the other hand, if the result of this determination is “Yes”, the selection process is terminated.

In this way, when the correspondence relationship between each injection mesh M and the handling inlet 5 is clarified, based on the selection result, the total amount of soil of one or more injection meshes M handled by each handling inlet 5 Is calculated. Then, in accordance with the total amount of soil, the solidification material injection amount information D3 to be injected from each carrying inlet 5 is created. The method of creating the solidification material injection amount information according to the total soil amount is not particularly limited, but it is preferable to correct the solidification material injection amount information D3 according to the sand quality of the injection mesh M. Although this correction method is not particularly limited, for example, a method described below can be used.
That is, as a result of the above selection processing, for example, as an injection mesh M which inlet 5 is responsible, injection mesh S ₁ of sand, S _2, ... S _n, injection of silt-mixed sand mesh SF _1, SF _2, is ... SF _n If it is found that it exists, the total soil volume V _s of the sand layer and the total soil volume V _SF of the silt mixed sand layer are calculated by the following formulas 1 and 2.

(Formula 1)

(Formula 2)

Then, _assuming that the injection rate of the sand layer is λ _s and the injection rate of the silt-mixed sand layer is λ _SF , the injection amount G of the injection port 5 is calculated by the following equation 3.

(Formula 3)

However, when particularly reliable injection is required, it is usually preferable to calculate by the following formula 4 in consideration of “λ _S > λ _SF ”.

(Formula 4)

Furthermore, in the above application form, for example, when there is an embedded object in a certain injection mesh M and it is not necessary to inject a solidified material, the injection rate of the injection mesh M in which this embedded object exists is calculated as 0%. It is also possible to calculate the total soil amount as 0 m ³ , or to exclude the injection mesh M from the selection of the handling inlet. This point cannot be realized in the conventional form in which the injection port is weighted according to the positional relationship between the respective injection ports and the amount of solidified material injected is distributed according to the weight.

  When the injection amount information D3 is created in this way, as shown in FIG. 1, this injection amount information D3 is given to the injection construction device 30, and the injection construction work is performed based on the injection amount information D3.

  At the time of this injection construction work, the injection pressure for each unit time, the injection flow rate, the injection amount for each step, etc. are measured by the flow rate pressure measuring device provided in the injection construction device 30, and recorded as injection data D4 on a memory card or the like. Injection data D4 recorded on the memory card or the like is input to the database storage unit 43 via the injection data input unit 46.

  Next, the injection effect processing unit 45 performs an injection effect determination process. Here, prior to the determination process, injection effect determination support diagram output conditions such as injection drug solution, injection hole or arbitrary injection zone cross section, control chart output data (end injection pressure, flow rate, injection amount, etc.) are given.

  Next, it is determined whether supplementary injection is necessary by a personal computer (PC) or the like. When it is determined that this supplementary injection is necessary, the process proceeds to the above-described injection construction work, and the supplementary injection work is performed again. When supplemental injection is not required, the injection construction is complete.

  As described above, in the present embodiment, when supporting the double pipe double packer injection method, the injection amount information creation device 40 uses the injection hole information (position information of the outer injection pipe) D1 based on the design and the measuring instrument. Based on the measured hole bending information D2 of the injection hole, the actual position information of each injection hole 5 is calculated, and the actual position information and the position information of each injection mesh M obtained by dividing the target ground region into a plurality of For each of the injection meshes, the injection port 5 located at the shortest distance is selected as a receiving injection port, and based on the selection result, the total amount of soil of the injection mesh M that each of the receiving injection ports 5 takes is calculated. In accordance with the total amount of soil, the solidification material injection amount information D3 to be injected from each of the inlets 5 is created and optimally distributed to the respective injection ports 5, so that even if the injection hole is bent, , Subject It can be uniformly injected and solidified material to the board area. In particular, this effect can be obtained when a plurality of rows (stages) of injection outer tubes are built in the lateral direction (including a case where a plurality of rows of injection outer tubes are not built in parallel in the vertical direction), or The present invention can also be achieved in the case where it is built not in a straight line but in a curved line. In this respect, the apparatus and method of this embodiment are extremely superior to conventional apparatuses and methods.

By the way, although the double pipe double packer type injection method of the present embodiment has been described above, as shown in FIG. 5 (1), a plurality of outer injection pipes 3 are arranged in parallel in the lateral direction. For example, in the case of a design in which the tube groups 3A to 3D are installed in a plurality of rows spaced apart in the vertical direction, four rows in the illustrated example, in order to shorten the construction time, It is preferable to perform the parallel processing of the erection and the injection of the solidified material using the injection outer tube 3. Therefore, in such a case, the following method is recommended.
That is, in the method of this embodiment, first, as shown in (2) of FIG. 5, the first row of injection tube groups 3A and the second row of injection tube groups 3B are installed. At this stage, the solidification material injection amount information D3 is created by the apparatus and method described above. Based on this injection amount information D3, as shown in FIG. The solidification material is injected from only. On the other hand, in parallel with this injection, as shown in FIG. 5 (4), a third row of injection tube groups 3C is installed. At the stage where the installation of the third row of injection tube groups 3C is completed, the solidified material is obtained by the above-described apparatus and method for the injection mesh MS excluding the injection mesh ME held by the first row of injection tube groups 3A. Injection amount information D3 is created. Next, based on the injection amount information D3, as shown in FIG. 5 (5), the solidifying material is injected only from the injection tube group 3B in the second row. On the other hand, in parallel with this injection, as shown in FIG. 5 (6), a fourth-row injection tube group 3D is installed. Thereafter, the creation of the solidification material injection amount information D3, the solidification material injection, and the installation of the injection tube group are repeated according to the number of rows of the injection tube group. In this embodiment, since the injection tube groups are designed to be four rows, when the installation of the fourth row of injection tube groups 3D is completed, the first row of injection tube groups 3A and the second row of injections are completed. The injection amount information D3 of the solidified material is created by the above-described apparatus and method for the injection mesh MS excluding the injection mesh ME handled by the tube group 3B. Next, based on the injection amount information D3, as shown in (7) of FIG. 5, the solidification material is injected only from the third row of injection tube groups 3C and the fourth row of injection tube groups 4D, and the injection operation is performed. Exit.

  According to the present invention, an injection method support processing apparatus, an injection method support processing method, and an injection method suitable for injection construction such as a double pipe double packer type in consideration of hole bending are provided.

  DESCRIPTION OF SYMBOLS 3 ... Outer pipe | tube, 3A-3D ... Injection pipe group, 5 ... Injection port, 10 ... Design apparatus, 20 ... Drilling apparatus, 30 ... Injection construction apparatus, 40 ... Injection amount information preparation apparatus, 41 ... Injection design data input , 42 ... hole bending data input part, 43 ... database storage part, 44 ... injection amount adjustment part, 45 ... injection effect processing part, 46 ... injection data input part, 47 ... injection effect mapping part, D1 ... injection hole information , D2 ... hole bending information, D3 ... injection amount information, D4 ... injection data, M ... injection mesh.

Claims (6)

A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method support processing apparatus that performs the support process for an injection method that improves the entire target ground region by injecting,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is provided an injection amount information creation device for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing apparatus characterized by that. An injection in which a plurality of injection holes are formed in the target ground region and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then a plurality of packers are attached in the axial direction in the injection outer tube Injection for supporting the double pipe double packer type injection method that improves the entire target ground area by inserting an inner pipe and injecting solidified material into each ground from each inlet of the outer injection pipe Construction method support processing device,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is provided an injection amount information creation device for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing apparatus characterized by that. The injection amount information creating means includes a correction device that corrects the solidification material injection amount information according to the sand quality of the injection mesh when creating the solidification material injection amount information from the total soil amount of the injection mesh.
The injection method support processing apparatus according to claim 1 or 2. A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method support processing method for performing the support processing for the injection method for improving the entire target ground area by injecting,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing method characterized by the above. An injection in which a plurality of injection holes are formed in the target ground region and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then a plurality of packers are attached in the axial direction in the injection outer tube Injection for supporting the double pipe double packer type injection method that improves the entire target ground area by inserting an inner pipe and injecting solidified material into each ground from each inlet of the outer injection pipe Construction method support processing method,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from each of the above-mentioned inlets.
An injection method support processing method characterized by the above. A plurality of injection holes are formed in the target ground region, and an injection outer tube having a plurality of injection ports in the axial direction is installed in the injection hole, and then the solidified material is respectively ground from each injection port of the injection outer tube. An injection method for improving the entire target ground area by injecting,
In the case where the injection tube group in which the outer injection tubes are installed in parallel is installed in a plurality of rows,
Based on the design position information of each injection outer tube based on the design and the hole bending information of each injection outer tube measured by a measuring instrument, the actual position information of each injection port is calculated,
Based on the actual position information and the position information of each injection mesh divided into a plurality of the target ground area, for each of the injection mesh, select the injection port located at the shortest distance as the handling injection port,
Based on this selection result, calculate the total amount of soil of the injection mesh that each of the receiving inlets is responsible for,
In accordance with the total amount of soil, there is an injection amount information creation step for creating injection amount information of the solidified material to be injected from the respective inlets.
Install the first row of injection tube groups and the second row of injection tube groups,
At this stage, the solidification material injection amount information is created through the injection amount information creation step,
Based on this solidification material injection amount information, while injecting solidification material only from the first row of injection tube groups, while installing the third row of injection tube groups,
At this stage, the solidification material injection amount information is created through the injection amount information creation step for the injection mesh excluding the injection mesh held in the first row of injection tube groups,
Based on the solidification material injection amount information, the solidification material is injected only from the second row of injection tube groups, while the fourth row of injection tube groups is installed,
Thereafter, according to the number of columns of the injection tube group, creation of the solidification material injection amount information and injection of the solidification material and installation of the injection tube group are repeated.
An injection method characterized by that.

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