CN119686339A - A construction method for improving the stability of foundation pit slope - Google Patents
A construction method for improving the stability of foundation pit slope Download PDFInfo
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- CN119686339A CN119686339A CN202411926993.5A CN202411926993A CN119686339A CN 119686339 A CN119686339 A CN 119686339A CN 202411926993 A CN202411926993 A CN 202411926993A CN 119686339 A CN119686339 A CN 119686339A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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Abstract
本发明涉及基坑边坡施工领域，具体为一种提高基坑边坡稳定性的施工方法，可改造后的铆管可螺纹连接在一起，将竖向铆管插到竖向铆管插孔中，将斜向铆管插到斜向铆管插孔中，可将斜向铆管的内端连接在竖向铆管上形成一块整体结构，可提高基坑边坡整体的稳定性，降低塌方和滑坡的风险，向插孔中浇筑混凝土时，混凝土可顺着通孔留到竖向铆管插孔和斜向铆管插孔中，让混凝土将竖向铆管、竖向钢筋管、斜向铆管和斜向钢筋管凝固在一起，并牢固地与地基相粘合，具备较强的牢固性，会从而提高整体的稳定性，在基坑斜的斜坡面上铺设钢筋网，并利用锚杆固定，可将钢筋网牢牢地压固在基坑的斜面上，铺设混凝土后，可防止基坑斜面水土流失。
The invention relates to the field of foundation pit slope construction, and specifically to a construction method for improving the stability of the foundation pit slope. The modified rivet pipes can be threaded together, the vertical rivet pipe is inserted into the vertical rivet pipe insertion hole, and the oblique rivet pipe is inserted into the oblique rivet pipe insertion hole. The inner end of the oblique rivet pipe can be connected to the vertical rivet pipe to form an integral structure, which can improve the overall stability of the foundation pit slope and reduce the risk of collapse and landslide. When pouring concrete into the insertion hole, the concrete can be retained in the vertical rivet pipe insertion hole and the oblique rivet pipe insertion hole along the through hole, so that the concrete solidifies the vertical rivet pipe, the vertical steel bar pipe, the oblique rivet pipe and the oblique steel bar pipe together, and firmly adheres to the foundation, has strong firmness, and can improve the overall stability. A steel mesh is laid on the inclined slope surface of the foundation pit and fixed by anchor rods, so that the steel mesh can be firmly pressed and fixed on the inclined surface of the foundation pit. After laying concrete, soil and water loss on the inclined surface of the foundation pit can be prevented.
Description
Technical Field
The invention relates to the field of foundation pit slope construction methods, in particular to a construction method for improving stability of a foundation pit slope.
Background
The foundation pit is a soil pit excavated at a foundation design position according to the elevation of the substrate and the plane size of the foundation. The method is characterized in that the method comprises the steps of determining an excavation scheme according to geological hydrologic data in combination with the conditions of buildings nearby the site, performing waterproof drainage work, enabling a person with a non-deep excavation to be capable of using a slope-releasing method to stabilize a soil slope, enabling the slope to be determined according to relevant construction regulations, enabling the person with a deep excavation and nearby buildings to be capable of using a foundation pit wall supporting method, a concrete spraying wall protecting method, enabling a large foundation pit to even adopt methods of underground continuous walls, column type bored piles to be interlocked and the like, protecting soil layer collapse outside, enabling a person nearby the building to be free from influence, enabling a well point method to be capable of lowering the underground water level, enabling the person to use slope-releasing open excavation, enabling natural cold air freezing method to be capable of being used for excavation in cold areas and the like.
The soil retaining structure and measures such as groundwater control and environmental protection required for ensuring the safety and stability of an underground space formed by excavating the ground downwards during the construction of an underground structure are called foundation pit engineering, and the foundation pit engineering is a system engineering integrating geological engineering, geotechnical engineering, structural engineering and geotechnical testing technology. The foundation pit construction method mainly comprises engineering investigation, support structure design and construction, earth excavation and backfill, groundwater control, informationized construction, surrounding environment protection and the like, wherein the foundation pit construction is simplest and most economical, namely the excavation of an enlarged slope, but is often limited by site conditions and surrounding environment, so that a support system is required to be designed to ensure smooth construction and better protect the surrounding environment.
The traditional foundation pit slope construction method cannot connect vertical and oblique riveting pipes together, cannot form an integral, stable anti-landslide and anti-collapse structure, and concrete poured into the jacks is difficult to firmly adhere the riveting pipes to a foundation, so that the firmness is poor, and the integral stability is affected.
In view of this, we propose a construction method for improving the stability of the foundation pit slope, so as to solve the problems of the existing devices.
Disclosure of Invention
The invention aims to provide a construction method for improving stability of a foundation pit slope, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides a construction method for improving the stability of a foundation pit slope, which comprises the following specific steps:
(S1) vertically drilling a plurality of vertical riveting pipe jacks from top to bottom on the upper edge of the excavated foundation pit;
(S2) obliquely drilling two oblique riveting pipe jacks are drilled in the direction of the vertical riveting pipe jacks on the inclined surface of the foundation pit, and the inner ends of the oblique riveting pipe jacks are communicated with the vertical riveting pipe jacks;
(S3) riveting pipe transformation, namely arranging a plurality of groups of through holes which are penetrated oppositely on the vertical riveting pipe, arranging a plurality of groups of through holes which are penetrated oppositely on the inclined riveting pipe, welding two threaded connecting pipes on the vertical riveting pipe, and arranging internal threads matched with the threaded connecting pipes on the inner wall of the extending end of the inclined riveting pipe;
(S4) inserting a riveting pipe, namely inserting the vertical riveting pipe into a vertical riveting pipe insertion hole, and inserting the inclined riveting pipe (5) into an inclined riveting pipe insertion hole;
(S5) connecting the riveting pipe, namely aligning the internal thread at the inner end of the inclined riveting pipe with the external thread on the threaded connecting pipe, rotating the inclined riveting pipe, and connecting the threads of the inclined riveting pipe on the vertical riveting pipe;
(S6) inserting a reinforcing steel bar pipe, namely inserting a vertical reinforcing steel bar pipe into the vertical riveting pipe, and inserting an oblique reinforcing steel bar pipe into the oblique riveting pipe;
(S7) pouring concrete, namely pouring concrete into the vertical riveting pipe insertion holes and pouring concrete into the inclined riveting pipe insertion holes;
(S8) surface lapping, namely paving the reinforcing mesh on the inclined plane of the foundation pit, and nailing the reinforcing mesh on the inclined plane of the foundation pit by utilizing an anchor rod;
and (S9) paving concrete on the surface, and pouring the concrete on the reinforcing mesh.
Preferably, in the step (S1), the diameter of the vertical riveting pipe insertion hole is 8cm, the inner diameter is 7cm, and the depth of the vertical riveting pipe insertion hole is greater than the depth of the foundation pit.
Preferably, in the step (S2), the diameter of the oblique riveting pipe jack is 8cm, the inner diameter is 7cm, the inclination angle of the oblique riveting pipe jack is not less than 25 °, the distance between the two threaded connecting pipes is measured, the depth of the vertical riveting pipe jack is recorded, the distance between the two threaded connecting pipes and the bottom of the vertical riveting pipe jack is calculated, the drilling position and angle of the oblique riveting pipe jack are calculated, and then the electric drill and the drill rod are used for drilling.
Preferably, in the step (S3), a set of rotating handles is welded on the surface of the outer end of the oblique rivet pipe.
Preferably, in the step (S5), after the internal thread at the inner end of the oblique riveting pipe is aligned with the external thread on the threaded connecting pipe, the constructor holds the rotating handle on the oblique riveting pipe with both hands, and rotates the vertical riveting pipe to screw on the threaded connecting pipe.
Preferably, in the step (S7), when concrete is poured, the vertical reinforcement pipe and the inclined reinforcement pipe are knocked by hammers, and both vibrate, so that concrete around the air can be carried to vibrate, and the concreting fullness is improved.
Preferably, in the step (S8), a plurality of whip side clamping plates are welded and fixed on two sides of the anchor rod, the included angle between each side clamping plate and the anchor rod is not more than 45 degrees, a square thin steel plate is adopted as a prefabricated pressing plate, the side length is 10cm, the thickness is 0.3cm, a hole is formed in the center of the square thin steel plate, the square thin steel plate is sleeved on the anchor rod and welded and fixed, and then the processed anchor rod is vertically nailed on the inclined plane of the foundation pit;
Preferably, in the step (S9), the concrete on the surface layer of the foundation slope is smoothed.
Compared with the prior art, the invention has the beneficial effects.
According to the invention, through modifying the riveting pipe, the riveting pipe and the vertical riveting pipe can be connected together through threads, an inclined riveting pipe insertion hole communicated with the vertical riveting pipe insertion hole is drilled on the inclined surface of the foundation pit, the vertical riveting pipe is inserted into the vertical riveting pipe insertion hole, the inclined riveting pipe is inserted into the inclined riveting pipe insertion hole, the inner end of the inclined riveting pipe can be connected onto the vertical riveting pipe to form an integral structure, the integral stability of the foundation pit side slope can be improved, and the risk of collapse and landslide is reduced.
In the invention, when concrete is poured into the jack, the concrete can be left in the vertical riveting pipe jack and the inclined riveting pipe jack along the through hole, so that the concrete solidifies the vertical riveting pipe, the vertical reinforcing steel bar pipe, the inclined riveting pipe and the inclined reinforcing steel bar pipe together and is firmly adhered to a foundation, and the concrete has stronger firmness, thereby improving the overall stability.
According to the invention, the reinforcing mesh is paved on the inclined surface of the foundation pit and fixed by the anchor rods, so that the reinforcing mesh can be firmly pressed on the inclined surface of the foundation pit, and after concrete is paved, the water and soil loss of the inclined surface of the foundation pit can be prevented.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention during construction;
FIG. 3 is a schematic structural view of a vertical rivet pipe and an inclined rivet pipe connection in the invention;
FIG. 4 is a schematic structural view of the modified oblique rivet pipe according to the invention;
FIG. 5 is a schematic view of the construction of the improved anchor rod of the present invention;
Fig. 6 is an enlarged schematic view of the structure of fig. 2a according to the present invention.
In the figure, 1, a vertical riveting pipe jack, 2, an oblique riveting pipe jack, 3, a vertical riveting pipe, 4, a threaded connecting pipe, 5, an oblique riveting pipe, 6, a through hole, 7, a vertical reinforcing steel pipe, 8, an oblique reinforcing steel pipe, 9, a reinforcing steel net, 10, an anchor rod, 11, a side clamping plate, 12 and a pressing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 6, the invention provides a construction method for improving the stability of a foundation pit slope, which comprises the following specific steps:
(S1) vertically drilling a plurality of vertical riveting pipe jacks 1 on the upper edge of the excavated foundation pit from top to bottom;
(S2) obliquely drilling two oblique riveting pipe insertion holes 2 in the direction of the vertical riveting pipe insertion holes 1 on the inclined surface of the foundation pit, wherein the inner ends of the oblique riveting pipe insertion holes 2 are communicated with the vertical riveting pipe insertion holes 1;
(S3) riveting transformation, namely arranging a plurality of groups of through holes 6 which are penetrated oppositely on the vertical riveting pipe 3, arranging a plurality of groups of through holes 6 which are penetrated oppositely on the inclined riveting pipe 5, welding two threaded connecting pipes 4 on the vertical riveting pipe 3, and arranging internal threads matched with the threaded connecting pipes 4 on the inner wall of the extending end of the inclined riveting pipe 5;
(S4) inserting a riveting pipe, namely inserting a vertical riveting pipe 3 into the vertical riveting pipe insertion hole 1, and inserting an inclined riveting pipe 5 into the inclined riveting pipe insertion hole 2;
(S5) connecting the riveting pipe, namely aligning the internal thread at the inner end of the inclined riveting pipe 5 with the external thread on the threaded connecting pipe 4, rotating the inclined riveting pipe 5, and connecting the threads of the inclined riveting pipe 5 on the vertical riveting pipe 3;
(S6) inserting a reinforcing steel bar pipe, namely inserting a vertical reinforcing steel bar pipe 7 into the vertical riveting pipe 3, and inserting an inclined reinforcing steel bar pipe 8 into the inclined riveting pipe 5;
(S7) pouring concrete, namely pouring concrete into the vertical riveting pipe insertion holes 1 and pouring concrete into the oblique riveting pipe insertion holes 2;
(S8) surface lapping, namely paving the reinforcing mesh 9 on the inclined plane of the foundation pit, and nailing the reinforcing mesh 9 on the inclined plane of the foundation pit by utilizing the anchor rods 10;
And (S9) paving concrete on the surface, namely pouring the concrete on the steel bar net, and trowelling the concrete on the surface layer.
In the embodiment, in step S1, the diameter of the vertical riveting pipe insertion hole 1 is 8cm, the inner diameter is 7cm, and the depth of the vertical riveting pipe insertion hole 1 is greater than the depth of the foundation pit;
In the embodiment, in step S2, the diameter of the oblique riveting pipe insertion hole 2 is 8cm, the inner diameter is 7cm, the inclination angle of the oblique riveting pipe insertion hole 2 is not less than 25 °, the distance between the two threaded connection pipes 4 is measured, the depth of the vertical riveting pipe insertion hole 1 is recorded, the distance between the two threaded connection pipes 4 and the bottom of the vertical riveting pipe insertion hole 1 is recorded, the drilling position and angle of the oblique riveting pipe insertion hole 2 are calculated, and then the electric drill and the drill rod are used for drilling;
In the embodiment, in step S3, a set of rotating handles is welded on the surface of the outer end of the oblique rivet pipe 5;
In the embodiment, in step S5, after the internal thread at the inner end of the oblique riveting pipe 5 is aligned with the external thread on the threaded connecting pipe 4, a constructor holds the rotating handle on the oblique riveting pipe 5 with both hands, and rotates the vertical riveting pipe 3 to screw on the threaded connecting pipe 4;
In the embodiment, in step S7, when concrete is poured, the vertical reinforcement pipe 7 and the inclined reinforcement pipe 8 are knocked by hammers, and vibration is generated by the hammers, so that the concrete around the air can be carried to vibrate, and the concreting fullness is improved;
In the embodiment, in step S8, a plurality of whip side clamping plates 11 are fixed on two sides of an anchor rod 10 in an inclined welding manner, the included angle between each side clamping plate 11 and the anchor rod 10 is not more than 45 degrees, a pressing disc 12 is prefabricated, a square thin steel plate is taken, the side length is 10cm, the thickness is 0.3cm, a hole is formed in the center of the square thin steel plate, the square thin steel plate is sleeved on the anchor rod 10 and fixed in a welding manner, and then the processed anchor rod 10 is vertically nailed on an inclined surface of a foundation pit;
in this embodiment, in step S9, the concrete on the surface layer of the foundation slope is smoothed.
The foundation pit slope stability is improved by the principle that the improved riveting pipes can be connected together through threads, the vertical riveting pipes 3 are inserted into the vertical riveting pipe insertion holes 1, the inclined riveting pipes 5 are inserted into the inclined riveting pipe insertion holes 2, the inner ends of the inclined riveting pipes 5 can be connected to the vertical riveting pipes 3 to form an integral structure, the integral stability of a foundation pit slope can be improved, the risk of collapse and landslide is reduced, when concrete is poured into the insertion holes, the concrete can be left into the vertical riveting pipe insertion holes 1 and the inclined riveting pipe insertion holes 2 along the through holes 6, the vertical riveting pipes 3, the vertical reinforcing steel pipes 7, the inclined riveting pipes 5 and the inclined reinforcing steel pipes 8 are solidified together through the concrete and firmly adhere to a foundation, the foundation pit slope has stronger firmness, the integral stability can be improved, the reinforcing steel bar net 9 is paved on the inclined surface of the foundation pit, the anchor rod 10 is used for fixing, the reinforcing steel bar net 9 is firmly pressed on the inclined surface of the foundation pit, and the water loss of the inclined surface of the foundation pit can be prevented after the concrete is paved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, unless otherwise indicated, the meaning of "plurality" is two or more, and the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and for example, they may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Claims (8)
1. A construction method for improving the stability of a foundation pit slope is characterized by comprising the following specific steps:
The method comprises the steps of S1, vertically drilling a plurality of vertical riveting pipe jacks (1) from top to bottom on the upper edge of a dug foundation pit;
the method comprises the following steps of (S2) obliquely drilling two oblique riveting pipe jacks (2) in the direction of the vertical riveting pipe jacks (1) on the inclined surface of a foundation pit, wherein the inner ends of the oblique riveting pipe jacks (2) are communicated with the vertical riveting pipe jacks (1);
(S3) riveting pipe transformation, namely, arranging a plurality of groups of through holes (6) which are penetrated oppositely on the vertical riveting pipe (3), arranging a plurality of groups of through holes (6) which are penetrated oppositely on the inclined riveting pipe (5), welding two threaded connecting pipes (4) on the vertical riveting pipe (3), and arranging internal threads matched with the threaded connecting pipes (4) on the inner wall of the extending end of the inclined riveting pipe (5);
(S4) inserting a riveting pipe, namely inserting the vertical riveting pipe (3) into a vertical riveting pipe insertion hole (1), and inserting the inclined riveting pipe (5) into an inclined riveting pipe insertion hole (2);
(S5) connecting the riveting pipe, namely aligning the internal thread at the inner end of the inclined riveting pipe (5) with the external thread on the threaded connecting pipe (4), rotating the inclined riveting pipe (5), and connecting the threads of the inclined riveting pipe to the vertical riveting pipe (3);
(S6) inserting a reinforcing steel bar pipe, namely inserting a vertical reinforcing steel bar pipe (7) into the vertical riveting pipe (3), and inserting an inclined reinforcing steel bar pipe (8) into the inclined riveting pipe (5);
(S7) pouring concrete, namely pouring concrete into the vertical riveting pipe insertion holes (1) and pouring concrete into the oblique riveting pipe insertion holes (2);
(S8) surface lapping, namely laying a reinforcing mesh (9) on the inclined plane of the foundation pit, and nailing the reinforcing mesh (9) on the inclined plane of the foundation pit by using an anchor rod (10);
And (S9) paving concrete on the surface, namely pouring the concrete on the steel bar net, and trowelling the concrete on the surface layer.
2. The winter mixing station production heat preservation construction method of claim 1 is characterized in that in the step (S1), the diameter of the vertical riveting pipe insertion hole (1) is 8cm, the inner diameter is 7cm, and the depth of the vertical riveting pipe insertion hole (1) is larger than that of a foundation pit.
3. The winter mixing station production heat preservation construction method is characterized in that in the step (S2), the diameter of the inclined riveting pipe inserting hole (2) is 8cm, the inner diameter is 7cm, the inclination angle of the inclined riveting pipe inserting hole (2) is not smaller than 25 degrees, the distance between the two threaded connecting pipes (4) is measured, the depth of the vertical riveting pipe inserting hole (1) is recorded, the distance between the two threaded connecting pipes (4) and the bottom of the vertical riveting pipe inserting hole (1) is recorded, the drilling position and the angle of the inclined riveting pipe inserting hole (2) are calculated, and then drilling is conducted through an electric drill and a drill rod.
4. The method for producing and insulating heat by using the winter mixing station according to claim 1, wherein in the step (S3), a group of rotating handles are welded on the surface of the outer end of the inclined riveting pipe (5).
5. The method for producing, insulating and constructing the winter mixing station according to claim 1, wherein in the step (S5), after the internal thread at the inner end of the inclined riveting pipe (5) is aligned with the external thread on the threaded connecting pipe (4), a constructor holds the rotating handle on the inclined riveting pipe (5) with both hands, and rotates the vertical riveting pipe (3) to be screwed on the threaded connecting pipe (4).
6. The method for producing and insulating heat by a winter mixing station according to claim 1, wherein in the step (S7), when concrete is poured, the vertical reinforcing steel bar pipe (7) and the inclined reinforcing steel bar pipe (8) are knocked by hammers, and vibration is generated by the vertical reinforcing steel bar pipe and the inclined reinforcing steel bar pipe, so that concrete around air can be carried to vibrate, and the concreting fullness is improved.
7. The method for producing, insulating and constructing the winter mixing station according to claim 1, wherein in the step (S8), a plurality of whip side clamping plates (11) are welded and fixed on two sides of the anchor rod (10), the included angle between the side clamping plates (11) and the anchor rod (10) is not more than 45 degrees, a square thin steel plate is taken as a prefabricated pressing plate (12), the side length is 10cm, the thickness is 0.3cm, a hole is formed in the center of the square thin steel plate, the square thin steel plate is sleeved on the anchor rod (10) and welded and fixed, and then the processed anchor rod (10) is vertically nailed on the inclined surface of a foundation pit.
8. The method for producing and insulating heat by using the winter mixing station according to claim 1, wherein in the step (S9), concrete on the surface layer of the foundation slope is smoothed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411926993.5A CN119686339A (en) | 2024-12-25 | 2024-12-25 | A construction method for improving the stability of foundation pit slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411926993.5A CN119686339A (en) | 2024-12-25 | 2024-12-25 | A construction method for improving the stability of foundation pit slope |
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| CN119686339A true CN119686339A (en) | 2025-03-25 |
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| CN202411926993.5A Pending CN119686339A (en) | 2024-12-25 | 2024-12-25 | A construction method for improving the stability of foundation pit slope |
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- 2024-12-25 CN CN202411926993.5A patent/CN119686339A/en active Pending
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