Highway seepage slope protection structure

Abstract

The utility model discloses a highway seepage slope protection structure in the field of slope construction technology, comprising a frame body formed by pouring concrete, a layer of geotextile for covering the bottom of the slope is arranged at the bottom end of the frame body, the hollow part divided into by the inner side of the frame body is filled with stone filling, the frame body is evenly spaced with fixed anchor rods, the fixed anchor rods are provided with a free end and a protruding end, the free end passes through the frame body and the geotextile in turn and extends to the side of the geotextile away from the frame body; the protruding end is connected with a protective net for covering the frame body and the stone filling; the whole structure not only has high strength and stability to ensure the stability of the slope, but also has low cost for the whole structure and construction process, the construction process is convenient and simple, and has good economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of slope construction, in particular to a highway seepage slope protection structure. Background Art

[0002] Usually, when new highways are constructed or expanded, the rock mass suffers great vibration damage after mountain excavation, and protective measures need to be taken on the construction slopes.

[0003] Traditional slope protection construction involves leveling the slope and then covering it with green plants or protecting it by setting up hanging nets. However, the above protection methods may be insufficiently strong when exposed to large vibrations and natural factors such as strong winds or rain during highway use, making it easy for the slope to slip or even collapse. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is: how to improve the protection strength of the highway seepage slope protection structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A highway seepage slope protection structure comprises a frame body made of cast concrete, a layer of geotextile for covering the bottom of the slope is arranged at the bottom end of the frame body, the hollow parts divided into by the inner side of the frame body are filled with stone filling, fixed anchor rods are evenly arranged on the frame body, the fixed anchor rods are provided with a free end and a protruding end, the free end passes through the frame body and the geotextile in turn and extends to the side of the geotextile away from the frame body; the protruding end is connected to a protective net for covering the frame body and the stone filling.

[0007] Furthermore, a water collecting ditch and a drainage ditch are respectively arranged at the upper end of the frame body and the lower end of the frame body.

[0008] Furthermore, the protruding end is movably sleeved with a clamping piece for clamping and fixing the protective net. The protruding end is also sleeved with a pad, the pad contacts the frame body, and the protective net is clamped between the clamping piece and the pad.

[0009] Furthermore, the hollow area divided into a plurality of right-angled triangles on the inner side of the frame body.

[0010] Furthermore, the stone filler includes a plurality of stone pieces, and there are gaps between adjacent stone pieces, and the gaps are filled with a mortar connection layer.

[0011] Furthermore, the protective net is a wire mesh, and the protective net is provided with a plurality of traction ropes, the positions of the plurality of traction ropes and the plurality of anchor rods correspond to each other, and the traction ropes are tied to the anchor rods.

[0012] The beneficial effects of the utility model are:

[0013] (1) The overall protective structure formed by the frame body, anchor rods, stone filling and protective net can ensure sufficient strength. This integrated series structure can ensure the connection stability between the components.

[0014] (2) There is no need for paper cup planting or overall pouring in the entire structure, which can reduce construction costs to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a left side schematic diagram of the utility model;

[0016] Figure 2 It is a main schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the anchor connection of the utility model;

[0018] Figure 4 This is a schematic diagram of the aluminum film plate of the utility model;

[0019] Marked in the figure are, 1-frame body, 2-anchor rod, 3-geotextile, 4-stone filler, 5-protective net, 6-ditch, 7-drainage ditch, 8-platform, 9-ladder, 10-pressing part, 11-pad, 12-socket slot, 13-flip fixed anti-leakage slurry plate, 14-aluminum membrane plate, 201-free end, 202-extending end. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] according to Figure 1-Figure 3 As shown, the embodiment of the present application proposes a highway seepage slope protection structure, including a frame body 1 made of concrete, a layer of geotextile 3 for covering the bottom of the slope is arranged at the bottom end of the frame body 1, the hollow parts divided by the inner side of the frame body 1 are filled with stone filling 4, and the frame body 1 is evenly spaced with fixed anchor rods 2, the fixed anchor rods 2 are provided with a free end 201 and an extended end 202, the free end 201 passes through the frame body 1 and the geotextile 3 in sequence and extends to the side of the geotextile 3 away from the frame body 1; the extended end 202 is connected to a protective net 5 for covering the frame body 1 and the stone filling 4.

[0022] It should be noted that, under complex geological environments, slopes are optimized through the combination of materials, tools, and process methods to achieve on-site safety, progress, and high-quality completion of slope protection construction tasks, saving construction costs and providing effective safety guarantees for later operational safety. Further improve construction efficiency, reduce local collapse and breakage after construction completion or during operation, and facilitate maintenance and reduce economic losses; the integrated design of the combined aluminum formwork socket buckle can effectively control the linearity and surface straightness, improve the overall aesthetics, increase the instability and erosion of the slope, and extend the overall stability and life of the slope; because the slope is exposed for a long time, it will cause soil to be washed away. At the same time, this solution does not need to pour concrete on the slope on a large area to form a slope protection, reducing investment costs.

[0023] Specifically, the frame body 1 is composed of a plurality of frame beams, including four main beams and a plurality of auxiliary beams. The four main beams are interconnected to form a rectangular frame, and the plurality of auxiliary beams divide the rectangular structure into a plurality of right-angled triangles. That is to say, the hollow portion divided inside the frame body 1 is a plurality of right-angled triangles. The right-angled triangle structure has stronger stability than the rectangular structure itself, and can further enhance the strength of the entire frame body 1. Moreover, the hollow portion divided inside the frame body 1 is also provided with structures such as a ditch, a platform 8 and a step ladder 9, which are convenient for drainage and for the operator to stand during the subsequent maintenance of the protective structure.

[0024] Moreover, a water collecting ditch 6 and a drainage ditch 7 are respectively provided at the upper end and the lower end of the frame body 1. In rainy weather and water seepage conditions, water will be collected and formed from the upper and lower ends of the frame and then discharged, which can effectively ensure good drainage performance.

[0025] In order to ensure the connection stability of the protective net 5, the above-mentioned protruding end 202 is movably sleeved with a clamping piece 10 for clamping and fixing the above-mentioned protective net 5. The above-mentioned protruding end 202 is also sleeved with a pad 11. The above-mentioned pad 11 contacts the above-mentioned frame body 1, and the above-mentioned protective net 5 is clamped between the above-mentioned clamping piece 10 and the above-mentioned pad 11. Specifically, the above-mentioned clamping piece 10 can be a fastening nut threadedly connected to the above-mentioned protruding end 202, which can achieve clamping, or it can be a clamping cap with a loose clamping mechanism, which can achieve an adjustable clamping effect.

[0026] For the above-mentioned geotextile 3, after the slope is excavated, the permeable geotextile 3 is laid on the slope surface, and is adjusted and cut according to the on-site slope surface. The reserved holes around the geotextile 3 coincide with the anchor rods 2. The geotextile 3 has high strength and durability, can enhance the stability and anti-scouring ability of the soil, and prevent soil erosion and landslide. If seepage occurs on the surface of the slope, it can be discharged to the side ditch of the platform 8 through the anti-filtration layer of the geotextile 3, which greatly reduces the harm of seepage and immersion inside the slope and improves the overall stability of the slope.

[0027] The specific structure of the anchor rod 2 is the existing mortar anchor rod 2 support structure. The anchor rod 2 rod body is made of Φ25 threaded steel of HRB335 material, with a length of 3-5m. The tensile strength of a single parent of the mortar anchor rod 2 is not less than the current specification requirements, which is adjusted according to the geological and soil conditions of the slope, and shall not be less than 3m. The top 3 of the anchor rod 2 adopts an L-shaped hook, and the mortar is mixed by a 1:1M30 cement mortar mixer to ensure the best support effect.

[0028] In addition, the above-mentioned stone filler 4 includes a plurality of stone pieces, and there are gaps between the adjacent stone pieces, and the gaps are filled with a mortar connection layer. Specifically, the compressive strength of the stone pieces should not be less than 30MPa, and the thickness of the stone pieces should not be less than 150mm. They should be cleaned and rinsed before use, and stones without cracks, interlayers and antifreeze properties should be selected. Such a stone filler 4 can ensure sufficient protection strength.

[0029] Moreover, the protective net 5 is a steel wire net, and the protective net 5 is provided with a plurality of traction ropes, the positions of the plurality of traction ropes and the plurality of anchor rods 2 correspond to each other, and the traction ropes are tied to the anchor rods 2. In other words, the steel wire net is arranged on the top of the frame beam, and traction ropes are arranged around the net body to connect with the extended reserved anchor rods 2 to form an integral force-bearing frame. This flexible net is covered and wrapped on the required protection slope or rock, and the movement of the slope slabs is controlled within a certain range, ensuring a good limiting and supporting effect.

[0030] Moreover, the embodiment of the present application also proposes a highway seepage slope protection construction method, which comprises the following steps:

[0031] S1: Excavation and grooving; after surveying the topography of the slope, the slope surface is mechanically excavated, and after the placement of the frame body 1 is located, the slope groove is cut; specifically, the original topography of the slope is re-surveyed, and after the re-survey is completed, the intercepting ditch of the slope is constructed. The slope excavation construction should be carried out in the dry season, spring and winter to avoid construction in the rainy season, so as to reduce the collapse caused by large-scale water seepage on the slope. After the slope is mechanically excavated, 10-20cm is reserved on the slope surface, and the surveying technicians begin to re-survey the slope, and the slope is partially trimmed manually. After the slope is formed, the surveying personnel will frame the slope and position it, and manually groove the slope according to the size of the frame body 1. Grooving adopts two construction methods: one is that when the slope is soil, it is manually chiseled with an iron pick; the other is that when the slope is stone, the slope is excavated from top to bottom with manual assistance of crushing machinery, and the slope is constructed from top to bottom to improve the construction efficiency, so as to ensure that when the slope is long, safety accidents of artificial slope operation can be avoided.

[0032] S2: Laying geotextile 3: After the slope is formed, laying geotextile 3; the geotextile 3 is preset with through holes corresponding to the plurality of anchor rods 2. The geotextile 3 is adjusted and cut according to the on-site slope surface, and the through holes reserved around the geotextile 3 overlap with the anchor rods 2. If water seepage occurs on the slope surface, it can be discharged to the side ditch of the platform 8 through the anti-filtration layer of the geotextile 3.

[0033] S3: Setting the anchor rod 2; inserting the free end 201 of the anchor rod 2 through the geotextile 3 into the inside of the slope; specifically, after the geotextile 3 is laid, the free end 201 of the anchor rod 2 is directly passed through the reserved hole of the geotextile 3 and inserted into the prepared mortar installation hole to achieve the positioning of the anchor rod 2.

[0034] S4: Casting of the frame body 1; setting up a casting template and a steel skeleton on the upper end of the geotextile 3, and pouring concrete to form a concrete frame body 1. The anchor rod 2 is wrapped by the frame body 1, and the protruding end 202 of the anchor rod 2 passes through the outside of the frame body 1; the steel bars are manufactured and installed according to the design drawings, and after all the steel skeletons are installed, the template is assembled and the slope is set up. The template is customized in advance by the manufacturer based on the design drawings, and transported to the site for assembly. After the slope template is assembled, concrete is poured, and the concrete curing time shall not be less than 7 days.

[0035] Specifically, the casting template is formed by a combined aluminum template with a socket buckle, a socket slot 12 is set on the top of the aluminum template, and a flip fixed anti-leakage slurry plate 13 is set on the bottom. That is to say, the template connection can be quickly realized through the combined aluminum template, and it is convenient to install and disassemble. The aluminum film plate 14 in this embodiment is specifically assembled by splicing four plates of 3m, 2m, 1m, and 0.5m. The specific socket structure is as follows Figure 4 As shown, the socket groove 12 and the flip-fixed anti-leakage plate 13 are used to connect two adjacent aluminum membrane plates 14 through the anti-leakage plate and fix them by clamping. The specific clamping method can be fixed by a bolt structure, which can improve the tightness of the connection of the aluminum membrane plate 14 and ensure good casting quality.

[0036] S5: Filling with stone; filling the hollow part separated by the inner side of the frame body 1 with stone filler 4; after the concrete strength reaches 95%, the slope stone filler 4 is filled, and the stone filler 4 is filled and arranged in a plum blossom shape, with a vertical and horizontal interval of 1.5m between the stone pieces, and a plum blossom-shaped mortar connection layer is arranged to enhance the slope stability and anti-erosion effect.

[0037] S6: Hanging the protective net 5; hanging the protective net 5 outside the frame body 1 and the stone filling material 4, and fixing the protective net 5 to the protruding end 202; that is, finally hanging the net on the slope surface, setting traction ropes around the mesh cloth and connecting with the protruding reserved anchor rods 2 to form an overall force-bearing frame, and this flexible net covers and wraps around the required protective slope or rock, controlling the movement of the slope stones within a certain range, and ensuring the stability of the stone filling material 4.

[0038] In summary, the utility model proposes a highway seepage slope protection structure, including a frame body 1 made of concrete, a layer of geotextile 3 for covering the bottom of the slope is arranged at the bottom of the frame body 1, the hollow part divided inside the frame body 1 is filled with stone filler 4, the frame body 1 is evenly spaced with fixed anchor rods 2, the fixed anchor rods 2 are provided with free ends 201 and extended ends 202, the free ends 201 sequentially pass through the frame body 1 and the geotextile 3 to extend to the side of the geotextile 3 away from the frame body 1; the extended end 202 is connected to a protective net 5 for covering the frame body 1 and the stone filler 4. The whole structure not only has high strength and stability to ensure the stability of the slope, but also has low cost for the whole structure and construction process, and the construction process is convenient and simple, with good economic benefits.

Claims

1. Highway seepage slope protection structure, characterized in that: The invention comprises a frame body (1) cast with concrete, wherein a geotextile (3) for covering a slope is arranged at the bottom end of the frame body (1), and a hollow portion partitioned inside the frame body (1) is filled with stone filling material (4). The frame body (1) is provided with fixed anchor rods (2) at intervals, and the fixed anchor rods (2) are provided with a free end (201) and an extended end (202), wherein the free end (201) sequentially passes through the frame body (1) and the geotextile (3) and extends toward a side of the geotextile (3) away from the frame body (1); and the extended end (202) is connected to a protective net (5) for covering the frame body (1) and the stone filling material (4).

2. The highway seepage slope protection structure according to claim 1 is characterized in that: The upper end of the frame body (1) and the lower end of the frame body (1) are respectively provided with a water collecting ditch (6) and a drainage ditch (7).

3. The highway seepage slope protection structure according to claim 1 is characterized in that: The protruding end (202) is movably sleeved with a clamping piece (10) for clamping and fixing the protective net (5), and the protruding end (202) is also sleeved with a pad (11), the pad (11) contacts the frame body (1), and the protective net (5) is clamped between the clamping piece (10) and the pad (11).

4. The highway seepage slope protection structure according to claim 1 is characterized in that: The hollow areas divided into a plurality of right-angled triangles are formed on the inner side of the frame body (1).

5. The highway seepage slope protection structure according to claim 1 is characterized in that: The stone filler (4) comprises a plurality of stone pieces, and there are gaps between adjacent stone pieces, wherein the gaps are filled with a mortar connection layer.

6. The highway seepage slope protection structure according to claim 1 is characterized in that: The protective net (5) is a wire mesh, and the protective net (5) is provided with a plurality of traction ropes, the positions of the plurality of traction ropes and the plurality of anchor rods (2) correspond to each other, and the traction ropes are tied to the anchor rods (2).

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