Slope treatment structure with water-permeable flood-control energy-dissipation gravel retaining wall

Abstract

The utility model relates to a slope treatment structure with a water-permeable flood-control energy-dissipation gravel retaining wall, which comprises a retaining wall, the retaining wall is arranged on one side of a slope for supporting and retaining, filling block stones and a concrete protection slope are arranged between the retaining wall and the slope, the filling block stones are adjacent to the retaining wall, the concrete protection slope is pressed above the filling block stones, and the retaining wall is arranged between the retaining wall and the slope. The filling block stone is provided with a drainage floral tube communicated with the interior of the slope mountain, a water catchment groove is formed in the top of the filling block stone, and a drainage ditch is formed in the outer side of the retaining wall. The water dispenser has the advantages that the water dispenser can cope with different water volumes; the retaining wall is excellent in drainage performance, water pressure behind the wall does not need to be considered, even if the rainfall is large and the underground water level is high, the height of a water head only reaches the position of the side slope retaining wall, meanwhile, when the rainfall is large, the top structure of the retaining wall can serve as a drainage channel for temporary collection of side slope rainwater, the energy dissipation function is achieved, rainwater is prevented from rapidly flowing along a hillside, and the service life of the retaining wall is prolonged. Flood water is formed at the downstream; and deterioration of stratum bearing capacity due to long-time water collection is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation treatment engineering, in particular to a slope treatment structure with a permeable flood-proof and energy-dissipating gravel retaining wall. Background Art

[0002] my country has a wide range of mountainous terrains, and mountain slopes often encounter various geological disasters, such as collapse, landslides, debris flows, granular slopes, etc. In slope control projects, prestressed anchor cables, frame anchor rods, and retaining walls are conventional treatment measures. At the same time, in tunnel projects, anchor rods, pipe sheds, and prestressed anchor cables are often used to reinforce weak and broken surrounding rocks.

[0003] In actual slope improvement projects, a problem that often needs to be faced is how to drain the slope behind the retaining wall, because both rainwater and seepage water in the mountain slope will have an adverse effect on the retaining wall structure, especially water will cause additional water pressure on the retaining wall, resulting in changes in the force of the retaining wall; and when the water cannot be effectively drained, the seepage water in the mountain is always immersed in the stratum, which can easily cause the base of the retaining wall to become loose and its bearing capacity to continue to decrease, and in severe cases, the retaining wall will become unstable. Summary of the invention

[0004] The purpose of the utility model is to provide a slope treatment structure with a permeable flood-control and energy-dissipating gravel retaining wall based on the above-mentioned deficiencies of the prior art, adopting a permeable structure to reduce the water pressure behind the retaining wall, giving full play to the characteristics of the gravel retaining wall, such as good energy dissipation effect, strong impact resistance and large allowable deformation value; at the same time, reducing the soil pressure behind the foundation pit retaining structure through precipitation.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A slope treatment structure with a permeable flood-proof and energy-dissipating gravel retaining wall, characterized in that it includes a retaining wall, which is arranged on one side of the slope for support, and filled blocks of stone and concrete slope protection are arranged between the retaining wall and the slope, the filled blocks of stone are adjacent to the retaining wall, the concrete slope protection is weighed above the filled blocks of stone, the filled blocks of stone are provided with drainage flower pipes connected to the inside of the slope mountain, the top of the filled blocks of stone is provided with a water collection trough, and the outside of the retaining wall is arranged with a drainage ditch.

[0007] The retaining wall includes a crushed stone body, a plurality of transverse prestressed structures are arranged on the periphery of the crushed stone body, and mutually connected stone retaining nets are arranged between the plurality of transverse prestressed structures. The crushed stone body is filled in the enclosed area of ​​the stone retaining nets; the transverse prestressed structure applies prestress to the crushed stone body transversely, and the crushed stone body is vertically provided with a vertical anchor structure, and the vertical anchor structure applies prestress vertically to the crushed stone body.

[0008] The transverse prestressed structure includes a plurality of crushed stone pressing plates arranged on both sides of the crushed stone body, a group of crushed stone pressing plates at the same height on both sides are connected by tensioning rods, and the stone retaining net is fixed on the crushed stone pressing plates.

[0009] Both ends of the pull rod are anchored to the crushed stone pressing plate by bolts respectively, and a pad is arranged between the bolts and the crushed stone pressing plate.

[0010] The vertical anchor structure comprises a vertically arranged steel strand, the bottom of which is anchored into the ground, and the top of which is locked above the gravel body after being tensioned.

[0011] A concrete pressure top is arranged on the top of the crushed stone body, a support matching the position of the steel strand is arranged on the pressure top, and the top of the steel strand is locked on the support.

[0012] The bottom of the retaining wall is provided with an impermeable concrete layer.

[0013] A water retaining wall is arranged on the top of the retaining wall.

[0014] The advantages of the utility model are:

[0015] 1) Compared with general clay, silt, and concrete backfill materials, the block stone has a larger permeability coefficient, which allows the seepage water in the mountain to be smoothly discharged to the gravel retaining wall, avoiding water soaking at the base of the retaining wall.

[0016] 2) Drainage pipes are used to connect the joints, cracks and pores inside the mountain to facilitate the discharge of accumulated water inside the mountain; to avoid poor drainage inside the mountain, and water pressure acting on the mountain and then being transmitted to the retaining wall.

[0017] 3) The concrete slope protection weighs down the filling stones to prevent them from loosening and shifting. At the same time, the concrete slope protection protects the foot of the mountain slope and strengthens the strength at the concentrated stress point at the foot of the mountain slope.

[0018] 4) When the hillside runoff and seepage water cannot be discharged to the drainage ditch through the retaining wall in time, the water collection trough can temporarily collect the accumulated water, guide the accumulated water to flow along the retaining wall and gradually seep downward; when rolling stones or falling rocks appear on the hillside, it can act as a buffer to prevent it from directly rushing out of the retaining wall.

[0019] 5) When the water flow rate on the hillside is high, a retaining wall is set up to prevent the water from directly rushing out of the retaining wall; when the water volume is large, the water-passing section at the top of the retaining wall is increased; when rolling stones and falling rocks appear on the hillside, it also plays a blocking role to prevent the water from directly rushing out of the outside of the retaining wall.

[0020] 6) Use an impermeable concrete layer to prevent water from accumulating and softening the slope foot, or from seeping directly into the foundation from the gravel retaining wall, which would reduce the bearing capacity of the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the use structure of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the retaining wall in the utility model;

[0023] Figure 3 This is a front view schematic diagram of the use of the retaining wall in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the crushed stone pressing plate in the utility model. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0026] like Figure 1-4 As shown, the marks 1-21 in the figure respectively represent: retaining wall 1, water retaining wall 2, slope 3, temporary slope 4, concrete slope protection 5, filling block stone 6, water collection trough 7, drainage ditch 8, anchor cable 9, drainage flower pipe 10, impermeable concrete layer 11, crushed stone body 12, crushed stone pressure plate 13, concrete pressure top 14, steel strand 15, support 16, stone retaining net 17, pull rod 18, pad 19, bolt 20, pressure plate 21.

[0027] Example: Figure 1 As shown, the main structure of the permeable flood-proof and energy-dissipating gravel retaining wall in this embodiment includes a retaining wall 1 arranged on one side of the slope 3, and the retaining wall 1 is a permeable gravel retaining wall. A temporary slope 4 for construction is arranged below the slope 3, and a filling block 6 and a concrete slope protection 5 are filled between the retaining wall 1 and the temporary slope 4, wherein the filling block 6 is arranged at a position adjacent to the retaining wall 1 and supported by the retaining wall 1, and the concrete slope protection 5 is weighted and arranged above the filling block 6. Among them, the filling block 6 has a larger permeability coefficient than ordinary clay, silt, and concrete backfill materials, which can allow the leakage water in the mountain to be smoothly discharged to the position of the retaining wall 1 to avoid the base of the retaining wall 1 being soaked in water; and the concrete slope protection 5 is used to prevent the filling block 6 from loosely shifting, and at the same time, the concrete slope protection 5 protects the foot of the mountain slope and strengthens the strength at the force-concentrated position at the foot of the mountain slope.

[0028] like Figure 1 As shown, a plurality of drainage flower pipes 10 are driven into the filling block 6, and the plurality of drainage flower pipes 10 can be driven into the mountain of the slope 3 in a scattered manner, and the filling block 6 can be connected with the inside of the mountain through the drainage flower pipes 10, so that the accumulated water inside the mountain can be discharged to the filling block 6 through the drainage flower pipes 10. In this way, it can effectively avoid that the water pressure caused by poor drainage inside the mountain acts on the mountain and then is transmitted to the retaining wall 1.

[0029] like Figure 1 As shown, a water collection trough 7 is provided on the top of the filling block 6. A drainage ditch 8 is provided on the ground outside the retaining wall 1, and the water discharged through the retaining wall 1 can be collected in the drainage ditch 8 for centralized discharge to prevent long-term water collection from deteriorating the bearing capacity of the stratum. When the hillside runoff and seepage water cannot be discharged to the drainage ditch 8 through the retaining wall 1 in time, it plays the role of temporarily collecting the accumulated water, guiding the accumulated water to flow along the retaining wall 1 and gradually seep downward. In addition, when rolling stones and falling rocks appear on the hillside, the water collection trough 7 can also play a buffering role to prevent rolling stones and falling rocks from directly rushing out of the outside of the retaining wall 1.

[0030] In addition, a retaining wall 2 is arranged at the top of the retaining wall 1 adjacent to the outer side; when the flow rate of water on the hillside is large, the water flow is prevented from directly rushing out of the retaining wall 1. When the water volume is large, the water-passing section at the top of the retaining wall 1 is increased. When rolling stones or falling rocks appear on the hillside, it can also play a certain blocking role.

[0031] When this embodiment is applied, the functions generally include:

[0032] (1) Mountain drainage: Groundwater in the mountain will infiltrate into the filling block 6 along its own cracks and drainage flower pipes 10, and fine soil particles will be filtered and left in place. Since the filling block 6 is close to the retaining wall 1, the groundwater will seep out of the retaining wall after passing through the retaining wall 1 and enter the drainage ditch 8.

[0033] (2) Slope rock rolling protection: The water collection trough 7 on the top of the filling block 6 can collect the broken stones rolling down from the slope 3; the retaining wall 2 on the top of the retaining wall 1 can prevent the rolling stones from falling further into the inner side of the retaining wall.

[0034] When it rains during use, this embodiment has the following drainage functions:

[0035] (1) By setting up the retaining wall 2, water can be gathered within the range of the retaining wall 2 and the slope, reducing the water flow speed, reducing the kinetic energy of the flood, and preventing rainwater from flowing quickly along the hillside and gathering into a flood downstream.

[0036] (2) When the amount of water is small, it mainly collects in the water collection trough 7 on the block stone filling 6.

[0037] (3) Rainwater can seep out of the retaining wall 1 through the retaining wall 1 and the filling blocks 6, flow out of the retaining wall 1, and gather in the drainage ditch 8.

[0038] (4) Adding concrete slope protection 5 to the side slope of the water collection channel 7 can prevent the side slope at a nearby position from being hollowed out by rainwater.

[0039] Combination Figures 2 to 4As shown, the retaining wall 1 in this embodiment uses a crushed stone body 12 as the filling body, and a plurality of crushed stone pressing plates 13 are arranged within the range of the crushed stone body 12, and the crushed stone pressing plates 13 are composed of a tie rod 18, a pad 19, a bolt 20 and a pressing plate 21. Among them, the pressing plates 21 of the plurality of crushed stone pressing plates 13 are horizontally symmetrically arranged at the side positions of the crushed stone body 12, and the pressing plates 21 on both sides at the same horizontal height are connected by tensioning through the tie rod 18. In this embodiment, the tie rod 18 is anchored on the pad 19 by the bolt 20 after tensioning, and the pad 19 is located between the pressing plate 21 and the bolt 20.

[0040] At this time, the pad 19 and the pressure plate 21 can give full play to the role of the tie rod 18 in compressing the crushed stone body 12. By tightening the bolt 20, the tie rod 18 is prestressed, and the prestress is diffused through the pad 19 to tighten and compact the crushed stone body 12. In this embodiment, the prestress diffused between the pressure plates 21 and the pressure plates 21 overlap each other, which can better form an arched compression bag and give full play to the bearing capacity of the retaining wall. From another perspective, the deformation of the crushed stone body 12 can directly act on the pressure plate 21, and the pressure plate 21 and the pad 19 transfer the load to the tie rod 18, so that the tie rod 18 can better control the deformation of the retaining wall. After the prestress of the tie rod 18 is tightened, a conical compression belt is formed at both ends.

[0041] like Figure 2 As shown, an interconnected stone retaining net 17 is arranged between the crushed stone pressing plates 13. The stone retaining net 17 is a flexible structure, which allows the crushed stone body 12 to deform within a certain range, so that the retaining wall structure as a whole becomes a flexible structure, which can bear a larger retaining wall deformation and does not fail after the larger deformation occurs. The stone retaining net 17 between the crushed stone pressing plates 13 forms a filling space, which wraps the crushed stone body 12 inside.

[0042] Combination Figure 1 and Figure 2 As shown, a concrete capping 14 is provided on the top of the crushed stone body 12, and a steel strand 15 is fixed above the concrete capping 14. One end of the steel strand 15 is fixed into the bottom stratum or rock layer, and the other end is anchored to a support 16 provided on the concrete capping 14 through an anchor after prestressing, thereby forming an anchor cable 9. The anchor cable 9 vertically compresses the crushed stone body 12 through prestressing, thereby improving the anti-overturning ability of the retaining wall.

[0043] like Figure 1 or Figure 2 As shown, an impermeable concrete layer 11 is arranged at the bottom of the retaining wall 1 to prevent water from penetrating into the bottom layer of the retaining wall, so as to avoid a reduction in the bearing capacity of the bottom layer.

[0044] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall, characterized in that: It includes a retaining wall, which is arranged on one side of the slope for support, and filled stones and concrete slope protection are arranged between the retaining wall and the slope, the filled stones are adjacent to the retaining wall, the concrete slope protection is weighed above the filled stones, the filled stones are provided with drainage flower pipes connected to the inside of the slope mountain, the top of the filled stones is provided with a water collection trough, and the outer side of the retaining wall is arranged with a drainage ditch.

2. A slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 1, characterized in that: The retaining wall includes a crushed stone body, a plurality of transverse prestressed structures are arranged on the periphery of the crushed stone body, and mutually connected stone retaining nets are arranged between the plurality of transverse prestressed structures. The crushed stone body is filled in the enclosed area of ​​the stone retaining nets; the transverse prestressed structure applies prestress to the crushed stone body transversely, and the crushed stone body is vertically provided with a vertical anchor structure, and the vertical anchor structure applies prestress vertically to the crushed stone body.

3. A slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 2, characterized in that: The transverse prestressed structure includes a plurality of crushed stone pressing plates arranged on both sides of the crushed stone body, a group of crushed stone pressing plates at the same height on both sides are connected by tensioning rods, and the stone retaining net is fixed on the crushed stone pressing plates.

4. A slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 3, characterized in that: Both ends of the pull rod are anchored to the crushed stone pressing plate by bolts respectively, and a pad is arranged between the bolts and the crushed stone pressing plate.

5. The slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 2, characterized in that: The vertical anchor structure comprises a vertically arranged steel strand, the bottom of which is anchored into the ground, and the top of which is locked above the gravel body after being tensioned.

6. A slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 5, characterized in that: A concrete pressure top is arranged on the top of the crushed stone body, a support matching the position of the steel strand is arranged on the pressure top, and the top of the steel strand is locked on the support.

7. The slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 1, characterized in that: The bottom of the retaining wall is provided with an impermeable concrete layer.

8. The slope treatment structure with a permeable flood control and energy dissipation gravel retaining wall according to claim 1, characterized in that: A water retaining wall is arranged on the top of the retaining wall.

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