JPH0522010B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a slope canal construction method and its device in slope protection methods such as slope greening work and slope covering work, etc. It was developed to protect waterways in the natural ``waterways'' that are formed.

(Prior art) As is well known, natural "waterways" are formed when rainwater, natural spring water, snowmelt water, etc. gather and flow in a belt-like manner through the soft parts of the mountainside slope and the depressions where water flows easily. . These "waterways" gradually erode and expand in response to changes in water flow on mountain slopes, especially collapsed slopes and artificial slopes. It is easy to cause problems such as leakage.

Therefore, in order to collect and drain this flow forcibly, conventional methods have been used to construct various mountainside channels such as concrete channels, corrugated channels, mortar channels, pipe channels, mortar or plastic gutters, and embedded gabions. are doing.

(Problem to be solved by the invention) However, the problematic "waterways" are generally found on collapsed lands, steep slopes, etc., and there are few straight shapes with bends and unevenness, so it is difficult to construct them. Difficulties are likely to arise in construction work such as bringing in materials and work equipment, digging the floor using heavy machinery, and embedding.

In addition, the bottom surface of these waterway structures, which were constructed with great effort,
Because no measures were taken to deal with the sides, the bottom and sides of the canal structure eroded over the course of several years, and eventually the canal structure took on a floating shape and lost its original purpose of concentrating water flow. I can't fulfill my dreams,
There are even places where there is a risk that the structure itself may collapse.

(Means for Solving the Problems) Therefore, the present invention provides slope greening work for the target slope where vegetation is possible on the mountainside slope, and where the mountainside slope is covered with rocks of various sizes and which prevents rockfall from being covered by vegetation. Focusing on dealing with slope covering work for the slope to be constructed, firstly, we will apply slope wire mesh 8 or entangled fibers to these types of cleaning slopes 1A to vegetated slopes 1B. Lay the slope mats 7 and slope wire mesh 8 made of
In the slope protection method in which the anchors 9 are driven in and fixed, and adhesive mortar 10 is sprayed from above, a waterway mat 3 made of entangled fibers is laid in the shaped waterway 2A in the direction, and a permeable pipe member 5 is placed on it. and the permeable pipe member 5 is sandwiched between the canal mat 3 and the slope wire mesh 8 or the slope mat 7. In a slope protection device formed by fixing slope wire mesh 8 or slope wire mesh 8 and slope mat 7 made of entangled fibers to vegetation slope 1B with anchors 9 and adhesive mortar 10, slope shaping waterway 2A Waterway Matsuto 3 constructed in
A mountainside waterway device in which a permeable pipe member 5 is clamped and fixed between an anchor 9 and an adhesive mortar 10 between a slope wire mesh 8 laid on a cleaning slope 1A or a vegetated slope 1B has been developed to solve various problems in the past. It was provided as a technical means to solve the problem.

Example 1 First, when the first example of the slope waterway construction method according to the present invention shown in FIGS. 1 and 2 is incorporated into slope greening work for a target slope where vegetation can grow on a mountainside slope. I will explain about it.

(1) First step: Slope cleaning work First, the covered part called the head of the slope (slope head) on the slope 1 before construction is cut off, and various foreign objects such as floating stones, miscellaneous trees, and driftwood are cleaned. In addition to removing and reshaping the cleaning slope 1A, the natural "mizumichi" 2 formed on the mountainside slope and its surrounding area are cleaned by doing as much as possible to preserve the natural "mizumichi" condition. After widening the width as necessary or digging the floor to form a shaped waterway 2A with a relatively shallow gutter-like cross section, the remaining soil containing such impurities is disposed of.

(2) Second step: Tightening of waterway pine Next, the palm pine 3 made of entangled fibers wound into a roll (hereinafter referred to as waterway pine) is attached to the shaped waterway 2A and both left and right sides from the shaped waterway 2A. The cleaning method is laid over a slope 1A with a width of 1 meter or more and spread out, and anchors 4 are driven and fixed while spreading from the top of the slope shaped waterway 2A to the ground.

At this time, as the waterway mat 3, the shaped waterway 2
If A is relatively soft soil, the average pine thickness
If the shaped waterway 2A is made of relatively hard soil,
A relatively thin mat with an average thickness of about 3 mm is selected and used.

(3) Third step Plumber of water permeable pipe members Next, a long water permeable pipe member 5 having a water permeable function is molded using a simple method as shown below.
A necessary number of pipes are installed on the waterway mat 3 to form a piping structure.

A simple molding example of this permeable pipe member 5 is shown below.
A water-permeable rolled palm pine or a synthetic resin net pine is once rolled back and then rolled again in the longitudinal direction perpendicular to the rolled palm pine to form it into a tube shape, or Using a method similar to this, first, roll-shaped palm pine or synthetic resin mesh mat constituting the outer shell member 5A of the tube is rolled back downward, and the tube core member 5B is placed inside the outer shell member 5A.
While unwinding the rolled wire mesh or palm pine constituting the tube core member 5B, this tube core member 5B is formed by rolling it into a roll again in the longitudinal direction perpendicular to the wire mesh or palm pine.
By winding the coconut pine or synthetic resin mesh pine constituting the outer shell member 5A around B in a roll shape in the longitudinal direction perpendicular to the outer shell member 5A, a water-permeable material having a long tubular shape with water permeability is formed. It is molded into a tube member 5.

Of course, the water permeable pipe member 5 may be an underdrain drain pipe having a water permeability function, which is a long pipe body made of flexible synthetic resin and having a plurality of drainage holes of the required size.

(4) Fourth step Slope vegetation work (seed spraying work) Next, grass seeds (the variety is Kentucky 31・F, Weeping Love ・G, Creeping Red・
F., white clover, etc.) 6, fiber waste colored green or blue, glue as an adhesive, fertilizer, etc., is sprayed using a seed sprayer. At this time, the reason why the fiber waste contained in the liquid mixture is colored green or blue is to enable the spraying status of the seeds 6 and its completion status to be seen in a color photograph or the like.

(5) Fifth step: Slope pine tensioning Next, roll-shaped palm pine 7 made of entangled fibers (hereinafter referred to as slope pine) is placed from the slope head of the vegetation slope 1B to the bottom of the slope. Roll it back and lay it on the vegetation slope 1B, the overhanging portions on both the right and left sides of the waterway mat 3, and the permeable pipe member 5 while blending it.

As this slope pine 7, a palm pine with an average thickness of about 3 mm is selected and used, and anchors are driven into it to temporarily fix it as necessary.

Incidentally, if there is a relatively large exposed rock on the vegetation slope 1B, that part is not covered with the slope pine 7 but is dealt with by leaving it in a notched exposed state.

(6) Sixth step: Laying slope wire mesh Next, roll the hexagonal or diamond-shaped slope wire mesh 8 onto the slope pine 7 from the head of the slope toward the bottom of the slope. The slope wire meshes 8 are laid while being blended together, and then the adjacent slope wire meshes 8 are fixed with binding wires. In this case, the slope wire mesh 8 is applied to the exposed rock portion while blending it in.

(7) Seventh step: Driving anchors Next, anchors 9 such as long and short anchor nails or concrete nails are driven in to fix the slope wire mesh 8 and slope pine 7 to the vegetation slope 1B, and the permeable pipe Waterway mat 3 with member 5 laid at its bottom
Then, it is driven in so as to be clamped and fixed between the slope mat 7 and the slope wire mesh 8 which are attached to the upper part of the slope mat 7.

(8) Eighth step Adhesive mortar spraying process Finally, adhesive mortar 10 prepared from cement material and mixed liquid is applied using a mortar spraying machine.
Spray the slope wire mesh 8 and the slope pine 7 while sprinkling, and also apply the method to the part of the slope wire mesh 8 that is attached to the head of the anchor 9 or the exposed rock, and also to the area directly above the channel pine 3. The parts of the wire mesh 8 and the slope mat 7 are sprayed intensively and fixed with adhesive.

The waterway construction method in the slope greening construction method is performed in the construction order of the above first to eighth steps.

(Modification) In the above case, the cleaning slope 1A of the fourth step
The vegetation work on the cleaning slope 1A was carried out after the second process of laying the waterway pine 3 and the third process of plumbing the permeable pipe member 5, but the vegetation work on the cleaning slope 1A was carried out after the first process of cleaning the slope. It can also be constructed after.

In this case, the construction order is as follows: the first step is slope cleaning, the second step is vegetation work on the cleaning slope 1A, the third step is installation of waterway pine 3, and the fourth step is piping of permeable pipe member 5. The fifth step is the installation of slope pine 7.
The slope greening work is carried out in the following order: the sixth step is the installation of the slope wire mesh 8, the seventh step is the casting of the anchors 9, and finally the spraying of the adhesive mortar 10.

With this, in the slope protection device formed by fixing the slope wire mesh 8 and the slope mat 7 made of entangled fibers to the vegetation slope 1B with the anchors 9 and adhesive mortar 10,
A slope waterway is formed by clamping and fixing a permeable pipe member 5 between a waterway pine 3 laid on a slope shaped waterway 2A and a slope wire mesh 8 laid on a vegetated slope 1B with anchors 9 and adhesive mortar 10. The device is configured.

Example 2 Next, a second example of the slope waterway construction method according to the present invention shown in FIGS. 3 and 4 will be described for a mountainside slope covered with rocks of various sizes and for which prevention of rock fall is the main objective rather than vegetation. We will explain the case where it is installed by incorporating it into the slope covering work for the slope.

In this case, the construction order is as follows: the first step is the slope cleaning work, the second step is the laying of the canal mat 3, the third step is the plumber of the permeable pipe member 5, and the fourth step is the construction work. The 5th worker who installed the wire mesh 8
As a step, the anchor 9 is cast, and as a sixth step, the adhesive mortar 10 is sprayed.

Of course, in this case as well, in order to green the slope as much as possible, it is necessary to carry out the work after the slope cleaning work in the first step, or after the slope netting work in the fourth step or the anchor driving work in the fifth step. It is also possible to carry out vegetation work on the cleaning slope 1A as in the first embodiment either before or after the cleaning.

With this, from the cleaning slope 1A to the vegetation slope 1B,
In a slope protection device in which slope wire mesh 8 is fixed with anchors 9 and adhesive mortar 10, waterway mats 3 laid on integral number channels 2A of the slope and slope wire meshes laid on cleaning slope 1A to vegetation slope 1B are used. Between 8 and
A slope waterway device is constructed by sandwiching and fixing the permeable pipe member 5 between an anchor 9 and an adhesive mortar 10.

(Effects of the Invention) As described above, the present invention first provides slope wire mesh 8 or slope mat 7 made of entangled fibers and slope wire mesh to cleaning slope 1A to vegetation slope 1B. In the slope protection method, which involves laying a waterway mat 8, driving it in place with anchors 9, and spraying adhesive mortar 10 on top of it, a waterway mat 3 made of entangled fibers is laid on the shaped waterway 2A on the slope. Water permeable pipe member 5 on top
Install and pipe the permeable pipe member 5 to the waterway mat 3.
and slope wire mesh 8 or slope pine 7, and secondly, slope wire mesh 8 or slope pine is sandwiched between cleaning slope 1A to vegetation slope 1B. A wire mesh 8 and a slope mat 7 made of entangled fibers are attached to an anchor 9.
In the slope protection device which is fixed with adhesive mortar 10, water permeability is provided between the channel mat 3 laid in the shaping channel 2A of the slope and the slope wire mesh 8 laid on the cleaning slope 1A to the vegetation slope 1B. The slope waterway device is made by clamping and fixing the pipe member 5 between the anchor 9 and the adhesive mortar 10.

Therefore, this slope canal construction method and its equipment can be implemented in the construction sequence integrated with slope greening work or slope covering work, and are effective as a slope protection method with excellent workability and construction cost. The value of existence is enormous.

In particular, the permeable pipe member 5 is
and the upper slope pine 7 and the slope wire mesh 8 (in the case of the first embodiment) or the slope wire mesh 8 (in the case of the second embodiment), and in addition, this waterway structure is held relatively firmly by anchors 9 and adhesive mortar 10, so first, a relatively small amount of water
In the waterway structure mainly composed of this water permeable pipe member 5, the water flows relatively gently downward through the slope wire mesh 8 and slope pine 7 on the surface layer, and is dispersed and flows relatively gently downward. Most of the water flows at a high speed through the hard surface layer of the waterway structure, and most of the permeated water that has passed through the surface layer flows downward through the permeable pipe member 5 and the waterway mat 3 below it.

Therefore, regardless of the amount of flow, the shaped water channel 2A on the back surface of the water channel mat 3 will not be eroded.

In addition, during construction, this construction method maintains the original shape as much as possible along the natural "waterways", which prevents the slope work from being a large-scale work and allows slope protection work to be carried out. It can be implemented relatively easily and effectively.

Moreover, if there is an element of greening in the waterway structure or its surrounding area, it brings about various effects such as being able to construct it without disturbing it.

[Brief explanation of the drawing]

Figure 1 is a construction drawing depicting the slope waterway construction method, which is incorporated into slope greening work, broken down in the order of its steps.
Figure 2 is a schematic diagram showing its cross-sectional structure, Figure 3 is a construction drawing depicting the slope waterway construction method incorporated in slope covering net work, broken down in the order of steps, and Figure 4 shows its cross-sectional structure. FIG. Code list, 1...Slope before construction, 1A...Cleaned slope, 1B...Vegetation slope, 2...Natural "water path", 2A...Small waterway, 3...Waterway pine, 4,
9... Anchor, 5... Permeable pipe member, 5A... Outer shell member, 5B... Tube core member, 6... Seed, 7...
...Slope pine, 8...Slope wire mesh, 10...Adhesive mortar.

Claims (1)

[Claims] 1. A slope wire mesh 8 or a slope mat 7 made of entangled fibers and a slope wire mesh 8 are laid on the cleaning slope 1A to the vegetation slope 1B, and anchors 9 are driven into the slope wire mesh 8 to secure the slope wire mesh 8. In a slope protection method in which adhesive mortar 10 is sprayed on the slope surface, a waterway mat 3 made of entangled fibers is laid in the shaped waterway 2A on the slope, a permeable pipe member 5 is installed on top of the waterway mat 3, and the permeable pipe member 5 to waterway pine 3
and slope wire mesh 8 or slope pine 7. 2 In the slope protection construction method described in claim 1, the permeable pipe member 5 is rolled once again in the longitudinal direction orthogonal to the roll-shaped palm pine or synthetic resin net mat while unwinding it. A slope waterway construction method in which the water is rolled into a pipe shape and formed into a pipe shape. 3. In the slope protection method described in claim 1, the water permeable pipe member 5 is prepared by first unwinding the rolled palm pine or synthetic resin mesh pine constituting the outer shell member 5A of the pipe body; While unwinding the rolled wire mesh or palm pine constituting the tube core member 5B inside the tube core member 5B, this time it is rolled again into a roll shape in the longitudinal direction perpendicular to it to form the tube core member 5B, and then , this tube core member 5
A slope waterway construction method in which the coconut pine or synthetic resin mesh pine of the outer shell member 5A is rolled around B in the longitudinal direction perpendicular to the outer shell member 5A and formed into a pipe shape. 4. In the slope protection construction method described in claim 1, the permeable pipe member 5 is a drainage pipe in which a plurality of drainage holes of a required size are bored in a long flexible synthetic resin pipe. A slope waterway construction method that serves as a pipe. 5 Slope wire mesh 8 or slope wire mesh 8 and slope mat 7 made of entangled fibers are installed on the cleaning slope 1A to the vegetation slope 1B.
In the slope protection device, which is fixed with anchors 9 and adhesive mortar 10, the waterway mat 3 laid on the shaping waterway 2A of the slope and the slope wire mesh 8 laid on the cleaning slope 1A to the vegetation slope 1B are combined. A slope waterway device characterized in that a permeable pipe member 5 is sandwiched and fixed between an anchor 9 and an adhesive mortar 10. 6. In the slope protection device according to claim 5, the water permeable pipe member 5 is a slope waterway in which the permeable pipe member 5 is formed by molding rolled coconut pine or synthetic resin net pine into a tube shape in the longitudinal direction. Device. 7 In the slope protection device according to claim 5, the water permeable pipe member 5 is an outer shell member 5A formed by molding rolled coconut pine or synthetic resin net pine into a tube shape in the longitudinal direction. and a core member 5B formed by wrapping a rolled wire mesh or coconut pine inside the outer shell member 5A and molding it in the longitudinal direction. 8. In the slope protection device according to claim 5, the water permeable pipe member 5 is a drainage pipe in which a plurality of drainage holes of a required size are bored in a long pipe body made of a flexible synthetic resin. A slope waterway device that serves as a pipe.