Fully strong weathered clastic rock side slope drainage structure

Abstract

The utility model discloses a fully strong weathered clastic rock slope drainage structure, which comprises a waterproof corner fitting, a drainage pipe, a drainage groove and a pressing piece which are arranged on the outer side of a stepped support structure, and the waterproof corner fitting is fixedly covered at the transverse junction of steps of the stepped support structure and is used as a normal waterproof and water absorption structure for corners where water is easy to accumulate. The drainage pipe and the drainage groove form a water guide and drainage system, rainwater on the inner side is rapidly guided into the drainage groove in the bottom of the supporting structure, a pressing piece is arranged at the bottom of the drainage pipe, different extrusion effects on the water absorption strip under the pressing piece are formed according to the drainage amount, and most water extruded by the water extrusion strip is guided into the drainage groove. Therefore, the whole slope drainage structure is simple in design and convenient to install, and the problem that the slope structure stability is affected due to the fact that a retaining wall of a stepped supporting structure is prone to water accumulation and leakage at the junction is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slope drainage construction, more specifically, the utility model relates to a full weathered detritus rock slope drainage structure. BACKGROUND

[0002] The terrain in the mountainous area in the north of Guangxi (hereinafter referred to as the mountainous area in the north of Guangxi) is rugged, and full weathered detritus rock and limestone constitute the basic sedimentary formation in the area, and the widely distributed full weathered stratum of the Carboniferous system has lithology such as sandstone, mudstone and shale, is affected by the Yishan-Liuzhou mountain-shaped structure, and is distributed in stages by folds and fractures, and the rock mass is relatively broken, has the characteristics of large weathering thickness, strong disintegration and poor road performance, and is a typical easy-to-slide stratum in the mountainous area in the north of Guangxi. The mountainous area in the north of Guangxi belongs to a subtropical monsoon climate, has the characteristics of large rainfall intensity in the rainy season, uneven rainfall, and large amplitude of surface runoff fluctuation in the karst area.

[0003] In the construction of the expressway in the mountainous area in the north of Guangxi, in the easy-to-slide stratum, the slope is seriously eroded, the water and soil are easy to be lost, and the existing protection structure is easy to be damaged due to the superposition of heavy rain and large-amplitude karst water factors, therefore, the design of the drainage structure is very important, at present, in the structural design of the slope retaining wall, the downward water permeability is improved mainly by the internal graded gravel structure, and the outside is protected by the concrete wall, rainwater flows downward along the concrete wall into the drainage groove at the bottom, but for the stepped retaining wall structure, there is a lack of direct drainage capacity, rainwater is easy to accumulate at the stepped junction, and seep into the soil body. SUMMARY

[0004] An object of the utility model is to solve at least the above problems, and provide at least the advantages to be explained later.

[0005] Another object of the utility model is to provide a full weathered detritus rock slope drainage structure, so as to solve the technical problem that rainwater is easy to accumulate at the stepped junction of the stepped retaining wall and seep into the soil body.

[0006] In order to realize these objects and other advantages according to the utility model, a full weathered detritus rock slope drainage structure is provided, which is arranged on the top surface and side surface of the stepped supporting structure, and comprises:

[0007] The waterproof corner piece is arranged along the horizontal extension direction of the supporting structure, and comprises a waterproof film layer and a water absorption strip, the waterproof film layer is in an L-shaped structure, and is fixed at the upper and lower stepped junctions of the supporting structure, and the water absorption strip is fixed on the upper surface of the waterproof film layer.

[0008] A drain pipe is vertically fixed on the side of the stepped layer of the support structure, the top of the drain pipe is open and aligned with the top edge of the stepped layer of the support structure, the bottom of the drain pipe is covered with a bottom cover, the bottom cover is arranged not lower than the top of the lower waterproof film layer, a water outlet channel is arranged at the lower end of the drain pipe away from the side of the slope, and a guide hole is arranged in the bottom cover;

[0009] A drainage groove is fixed on the top of the stepped layer of the support structure and located in the same vertical plane as the drain pipe, one end of the drainage groove is connected to the top opening of the lower drain pipe, and the other end extends to the waterproof corner piece of the stepped layer;

[0010] A pressing piece is arranged at the lower end of the drain pipe, the pressing piece is arranged in cooperation with the inner side of the drain pipe and connected with the bottom cover through a compression spring, an extrusion block is arranged below the bottom cover and used for extruding the water absorption strip below, an upright rod is connected to the upper end of the extrusion block and passes through the guide hole and the compression spring to be connected with the pressing piece.

[0011] Preferably, the pressing piece comprises a top plate and an inclined plate connected with each other, the top plate is connected to the top of the compression spring and arranged in cooperation with the inner side of the drain pipe in shape and size, the horizontal dimension of the top plate is greater than the width of the water outlet channel, the inclined plate passes through the water outlet channel and is arranged to extend into the drainage groove with the lower end, and the upper end of the upright rod is connected to the bottom of the top plate.

[0012] Preferably, the top plate and the inclined plate are arranged in hinged connection, and the lower end of the inclined plate abuts in the drainage groove.

[0013] Preferably, the drain pipe is a rectangular pipe structure, and one side of the rectangular pipe structure is fixedly connected with the side of the stepped layer of the support structure.

[0014] Preferably, the outer bottom of each drain pipe is provided with a support rod, and the support rod is supported and fixed on the top of the stepped layer of the support structure below.

[0015] Preferably, the drainage groove comprises a pair of parallel and spaced apart retaining edges, the distance between the pair of retaining edges is not less than the width of the drain pipe in the corresponding direction, and the retaining edge is connected with a baffle at one end close to the waterproof corner piece.

[0016] The utility model discloses at least following beneficial effects: the full weathered detritus rock side slope drainage structure of the utility model includes waterproof corner piece, drain pipe, drainage groove, pressure piece set up outside the ladder type support structure, wherein waterproof corner piece covers and fixes at the ladder horizontal interface of ladder type support structure, as the normal waterproof, water absorption structure of the corner place of easy water accumulation, drain pipe and drainage groove constitute water guide, drainage system, and the rainwater of inside is guided into the drainage groove at the bottom of support structure, and the pressure piece setting at the bottom of drain pipe, according to the drainage capacity size forms different extrusion effect to the water absorption strip below, and the water of most extrusion strip is extruded and is guided into drainage groove, whereby the whole side slope drainage structure design is simple, and the installation is convenient, and the problem that retaining wall of ladder type support structure is easy to accumulate water, seepage and influence the stability of side slope structure at the interface is solved.

[0017] Other advantages, objects and features of the utility model will be embodied partly through the following description, and the skilled in the art will also understand them partly through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the main structure diagram of the full weathered detritus rock side slope drainage structure of the utility model and is arranged outside the support structure;

[0019] Figure 2 It is the main structure diagram of the pressure piece of the utility model and is not pressed extrusion block;

[0020] Figure 3 It is the main structure diagram of the pressure piece of the utility model and is pressed extrusion block;

[0021] Figure 4 It is the side structure diagram of one of the full weathered detritus rock side slope drainage structure of the utility model;

[0022] Description of the drawings: 1, waterproof corner piece, 2, waterproof film layer, 3, water absorption strip, 4, drain pipe, 5, bottom cover, 6, water outlet hole, 7, drainage groove, 8, pressure piece, 9, compression spring, 10, extrusion block, 11, vertical rod, 12, top plate, 13, inclined plate, 14, support rod, 15, baffle, 20, support structure. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail in combination with the drawings, so that the skilled in the art can implement according to the description.

[0024] It should be noted that the experimental methods described in the following embodiments are conventional methods, and the reagents and materials are commercially available unless otherwise specified; in the description of the utility model, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0025] As shown in Figures 1-4 The utility model provides a full weathered detritus rock slope drainage structure, sets up in the top surface and side surface of stepped support structure 20, includes:

[0026] Waterproof corner piece 1 is along the horizontal extension direction of support structure 20 and is set up, including waterproof membrane layer 2 and water absorption strip 3, waterproof membrane layer 2 is L-shaped structure, covers and is fixed at the upper and lower ladder interface of support structure 20, and water absorption strip 3 is fixed on the upper surface of waterproof membrane layer 2;

[0027] Drain pipe 4 is vertically fixed on the side surface of the ladder layer of support structure 20, the top of drain pipe 4 is open and is aligned with the top surface edge of the ladder layer of support structure 20, the bottom of drain pipe 4 is covered and is provided with bottom cover 5, bottom cover 5 is not lower than the top of lower waterproof membrane layer 2 and is set, and the lower end of drain pipe 4 is provided with water outlet channel 6 on the side away from the slope, and guide hole is formed through bottom cover 5;

[0028] Drainage groove 7 is fixed on the top surface of the ladder layer of support structure 20 and is located in the same vertical plane with drain pipe 4, one end of drainage groove 7 is connected with the top opening of lower drain pipe 4, and the other end extends to waterproof corner piece 1 of the same ladder layer;

[0029] Pressing piece 8 is arranged at the lower end of drain pipe 4, pressing piece 8 is arranged in cooperation with the inner side of drain pipe 4 and is connected with bottom cover 5 through compression spring 9, extrusion block 10 is arranged below bottom cover 5 and is used to extrude water absorption strip 3 below, the upper end of extrusion block 10 is connected with vertical rod 11, vertical rod 11 passes through guide hole and compression spring 9 upwards and is connected with pressing piece 8.

[0030] For the convenience of description, the right side of Figure 1 is the side close to the slope, namely the inner side, Figure 1The left side of the waterproof corner piece 1 is the side far from the slope, that is, the outer side. By laying the waterproof corner piece 1 at the junction of the stepped layers of the supporting structure 20, the waterproof strip can directly absorb the rainwater remaining at the corners. The waterproof strip is generally provided in a sponge structure and can be squeezed and restored to its original state. The bottom is fixedly connected with the horizontal part of the waterproof membrane layer 2. The waterproof membrane layer 2 is provided, for example, as a geomembrane, and has the water-proof and anti-seepage ability, thereby strengthening the rainwater protection ability of the supporting structure 20 at the corners. The drain pipe 4 and the drainage groove 7 are correspondingly arranged on each stepped layer. The drain pipe 4 and the drainage groove 7 on all the stepped layers form a drainage system. The drain pipe 4 and the drainage groove 7 can be provided with an aesthetic effect or can be embedded on the surface of the corresponding concrete layer. The drainage groove 7 at the top surface of the stepped layer guides the rainwater to the drain pipe 4 at the lower side. The drain pipe 4 is fixed on the vertical side of the stepped layer and quickly guides the rainwater in the drainage groove 7 upward. Of course, a baffle structure can be provided on the left side of the top of the drain pipe 4 to better block and guide the water into the drain pipe 4. The rainwater flows out of the water outlet channel 6 at the lower end of the drain pipe 4 and enters the drainage groove 7 at the lower side. This cycle continues until the rainwater is guided to the drainage ditch on the side of the road by the drain pipe 4 at the lowermost layer. When the rainwater flows into the drain pipe 4, the pressure piece 8 and the compression spring 9 below are squeezed. The compression spring 9 can be squeezed and restored in the vertical direction. When the amount of rainwater is small, the pressure piece 8 is located at a higher position. At this time, the water outlet channel 6 is relatively small, and the water guiding efficiency is not affected. When the amount of rainwater is large, the water-absorbing strip 3 absorbs more water. The accumulated rainwater squeezes the pressure piece 8 and the compression spring 9, drives the squeezing block 10 to move downward, contacts and squeezes the water-absorbing strip 3 below, and squeezes the saturated water in the water-absorbing strip 3 into the drainage groove 7 to be discharged. With the repeated downward pressure and disturbance of the pressure piece 8, the water-absorbing strip 3 can be continuously squeezed to maintain a certain water absorption capacity.

[0031] The full weathered clastic rock slope drainage structure of the utility model includes waterproof corner piece 1, drain pipe 4, drainage groove 7 and pressure piece 8 arranged outside stepped supporting structure 20. The waterproof corner piece 1 is fixedly covered at the horizontal junction of the stepped supporting structure 20 and serves as a normal waterproof and water-absorbing structure for the corners where water is easy to accumulate. The drain pipe 4 and the drainage groove 7 form a water guiding and drainage system and quickly guide the rainwater on the inner side into the drainage ditch at the bottom of the supporting structure 20. The pressure piece 8 arranged at the bottom of the drain pipe 4 forms different squeezing effects on the water-absorbing strip 3 below according to the amount of water and guides most of the squeezed water into the drainage groove 7. Thus, the whole slope drainage structure is simple in design and convenient to install and solves the problem that the stepped supporting structure 20 retaining wall is easy to accumulate water and seep at the junction and affect the stability of the slope structure.

[0032] In another technical solution, as shown in Figures 1-4As shown, the pressing piece 8 comprises a top plate 12 and an inclined plate 13 connected with each other, the top plate 12 covers the top of the compression spring 9 and is matched with the inner side of the drain pipe 4 in shape and size, the lateral dimension of the top plate 12 is greater than the width of the water outlet channel 6, the inclined plate 13 passes through the water outlet channel 6 and the lower end thereof extends towards the drainage groove 7, and the upper end of the vertical rod 11 is connected with the bottom of the top plate 12.

[0033] The top plate 12 is located on the inner side of the drain pipe 4 and can slide up and down relative to the inner side of the drain pipe 4, the pressing piece 8 and the guide hole are designed to minimize direct infiltration of water, and part of the sealing strip can be arranged according to the requirement, the inclined plate 13 is connected with the top plate 12 and constitutes a guide plate for the water flowing out of the water outlet channel 6, so as to guide the water into the drainage groove 7 on the lower side more quickly, retain the water flow and accelerate the drainage efficiency.

[0034] In another technical solution, as shown in Figure 2 The top plate 12 and the inclined plate 13 are hingedly connected, and the lower end of the inclined plate 13 abuts against the drainage groove 7. The hinged connection mode can make the inclined plate 13 rotate relative to the top plate 12 or be fastened according to the requirement, if the inclined plate 13 is arranged in a rotatable state, when the pressing piece 8 moves up and down, the lower end of the inclined plate 13 enters the inner side of the drainage groove 7, and under the action of gravity and water flow, the lower end of the inclined plate 13 always keeps close to the bottom of the drainage groove 7.

[0035] In another technical solution, as shown in Figures 1-4 The drain pipe 4 is a rectangular pipe structure, one side of the rectangular pipe structure is fixedly connected with the side of the stepped layer of the supporting structure 20, so as to facilitate the installation and connection of the drain pipe 4.

[0036] In another technical solution, as shown in Figures 2-3 The outer bottom of each drain pipe 4 is provided with a supporting rod 14, and the supporting rod 14 is supported and fixed on the top of the stepped layer of the supporting structure 20 on the lower side, and the supporting rod 14 further improves the installation support stability of the drain pipe 4.

[0037] In another technical solution, as shown in Figures 1-3 The drainage groove 7 comprises a pair of parallel and spaced apart baffle edges, the spacing between the pair of baffle edges is not less than the width of the drain pipe 4 in the corresponding direction, and the baffle edge is upwardly connected with a baffle plate 15 at one end close to the waterproof corner piece 1. By laterally and upwardly arranging the baffle plate 15 at the end of the baffle edge, the water squeezed out of the water absorbing strip 3 can be prevented from spilling out of the drainage groove 7 and being guided into the drainage groove 7, so that the water can be better collected.

[0038] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A drainage structure for a fully weathered clastic rock slope, characterized in that, The support structure is installed on the top and sides, including: Waterproof corner fittings are installed along the horizontal extension direction of the support structure, including a waterproof membrane layer and a water-absorbing strip. The waterproof membrane layer has an L-shaped structure and is fixed to the junction of the upper and lower steps of the support structure. The water-absorbing strip is fixed to the upper surface of the waterproof membrane layer. The drainage pipe is a rectangular tube structure. One side of the rectangular tube structure is fixedly connected to the side of the stepped layer of the support structure. The top of the drainage pipe is open and aligned with the top edge of the stepped layer of the support structure. The bottom of the drainage pipe is covered with a bottom cover, which is not lower than the top of the lower waterproof membrane layer. The lower end of the drainage pipe has a water outlet channel through it on the side facing away from the slope. A guide hole is through it on the bottom cover. The drainage channel is fixed on the top surface of the stepped layer of the support structure and is located in the same vertical plane as the drainage pipe. One end of the drainage channel is connected to the top opening of the drainage pipe below, and the other end extends to the waterproof corner piece of the same stepped layer. The pressure component is located at the lower end of the drain pipe. It fits inside the drain pipe and is connected to the bottom cover by a compression spring. A squeezing block is located below the bottom cover. It is used to repeatedly press down and disturb the pressure component as rainwater falls, so as to contact and squeeze the absorbent strip below. This squeezes the relatively saturated water in the absorbent strip into the drainage groove and discharges it, so that the absorbent strip maintains a certain water absorption capacity. A vertical rod is connected to the upper end of the squeezing block. The vertical rod passes through the guide hole and the compression spring and then connects to the pressure component.

2. The drainage structure for a fully weathered clastic rock slope as described in claim 1, characterized in that, The pressure component includes a top plate and an inclined plate connected to each other. The top plate covers the top of the compression spring and is shaped and sized to match the inner side of the drain pipe. The lateral dimension of the top plate is greater than the width of the water outlet channel. The inclined plate passes through the water outlet channel and extends towards the drainage groove at its lower end. The upper end of the vertical rod is connected to the bottom of the top plate.

3. The drainage structure for a fully weathered clastic rock slope as described in claim 2, characterized in that, The top plate and the inclined plate are hinged together, and the lower end of the inclined plate abuts against the drainage groove.

4. The drainage structure for a fully weathered clastic rock slope as described in claim 1, characterized in that, The drainage channel includes a pair of parallel, spaced-apart baffles. The distance between the pair of baffles is not less than the width of the drain pipe in the corresponding direction. A baffle is connected upward to one end of the baffles near the waterproof corner piece.

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