CN219157754U

CN219157754U - Retaining wall structure for river side slope

Info

Publication number: CN219157754U
Application number: CN202320007628.9U
Authority: CN
Inventors: 李天鹏; 吉苗; 刘柏志; 闫艳
Original assignee: Sichuan Baoxin Construction Co ltd
Current assignee: Sichuan Baoxin Construction Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-06-09
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to a retaining wall structure for river course side slope, it is including digging the foundation ditch of establishing in river course side slope position, pouring the concrete foundation layer in the foundation ditch to and fixed wall body that sets up on the concrete foundation layer, the wash port has been seted up on the wall body, pre-buried in the wash port has the wash pipe, the back side of wall body is backfilled with permeable material, permeable material covers on the wash pipe, be provided with the drainage spare that is used for preventing permeable material loss on the wash pipe. The application has the effect of improving the protection effect of the retaining wall on soil layers at side slopes of river channels.

Description

Retaining wall structure for river side slope

Technical Field

The application relates to the technical field of retaining walls, in particular to a retaining wall structure for a river side slope.

Background

The retaining wall is a structure for supporting roadbed filling soil or hillside soil and preventing deformation and instability of the filling soil or soil, and a part which is in direct contact with the supported soil in the cross section of the retaining wall is called a wall back; the part opposite to the back of the wall, which is adjacent to the air, is called a wall surface; the part in direct contact with the foundation is called the substrate; the top surface of the wall opposite the base is called the wall crown; the front end of the base is called the toe; the rear end of the substrate is called a heel, the retaining wall is a common retaining building, and the retaining wall has extremely wide application in hydraulic engineering.

At present, when the retaining wall at the side slope of a river channel is constructed, a water discharge hole is usually formed in the wall body so as to quickly discharge accumulated water on one side of the retaining wall close to the back of the wall, however, when raining, soil layers on one side of the back of the retaining wall easily flow into the river channel along with water flow from the water discharge hole, and serious water and soil loss of the side slope of the river channel is caused.

Disclosure of Invention

In order to improve the protection effect of retaining wall to river course side slope department soil layer, this application provides a retaining wall structure for river course side slope.

The application provides a retaining wall structure for river course side slope adopts following technical scheme:

the utility model provides a retaining wall structure for river course side slope, includes digs the foundation ditch of establishing in river course side slope position, pours the concrete foundation layer in the foundation ditch to and the fixed wall body that sets up on the concrete foundation layer, the wash port has been seted up on the wall body, pre-buried water drain pipe that has in the wash port, the back side of wall body has backfilled permeable material, permeable material covers on the water drain pipe, be provided with the drainage spare that is used for preventing permeable material loss on the water drain pipe.

Through adopting above-mentioned technical scheme, prevent through permeable material that wall body back of wall one side earth from getting into in the wash pipe to prevent permeable material from running off in the wash pipe through filtering the water spare, thereby effectively avoid the soil layer of river course side slope department to run off through the wash port, improved the protection effect of retaining wall to river course side slope department soil layer greatly.

Optionally, the river channel further comprises a riprap layer paved in the river channel, the thickness of the polished layer is 1.5-3.0m.

Through adopting above-mentioned technical scheme, increase the structural strength of river course bottom soil layer through the riprap layer, reduce the retaining wall and take place the possibility of uneven subsidence.

Optionally, a gabion protection pad is also paved on the side slope of the river channel and positioned on one side of the wall body close to the river channel.

Through adopting above-mentioned technical scheme, through the intensity that the gabion protection pad increases the wall body and be close to the inboard side slope of river course, when the wall body is impacted by rivers, can reduce the deformation of retaining wall and take place the possibility of collapsing.

Optionally, a settlement joint is arranged on the concrete base layer at intervals of 10m along the length direction of the wall body, and an expansion joint is arranged on the wall body and positioned at the position of the settlement joint.

Through adopting above-mentioned technical scheme, through setting up the subsidence seam on the concrete basic unit, set up the expansion joint on the wall body, the retaining wall effectively avoids the wall body to receive climatic temperature variation in the use, the phenomenon of thermal expansion appears, shrinkage, lead to the wall body to appear the crack, and because retaining wall bottom soil layer receives rivers to influence and takes place to take place the loss to a certain extent easily, lead to the cavity to appear in partial retaining wall section bottom, break into the multistage with concrete basic unit through the subsidence seam, thereby effectively avoid the concrete basic unit to receive partial wall section internal stress influence, lead to the concrete basic unit to appear the crack, even collapse.

Optionally, the concrete base layer that is located one side of the settlement joint is fixedly provided with a lug, the concrete base layer that is located the other side of the settlement joint is provided with a groove along the vertical direction, and the lug slides and wears to establish in the groove.

Through adopting above-mentioned technical scheme, through bump and recess effectively avoiding taking place the dislocation of horizontal direction between two concrete foundation layers, the water flow impact resistance of retaining wall of improvement.

Optionally, asphalt-impregnated wood boards are filled in the settlement joints, and asphalt hemp ribs are filled in the expansion joints.

Through adopting above-mentioned technical scheme, pack the settlement joint through a plurality of asphalt planks to pack pitch burlap in the expansion joint of wall body, effectively avoid partial water to carry earth to flow through settlement joint or expansion joint, cause soil erosion.

Optionally, embedded ribs are embedded in the concrete base layer, and the embedded ribs are embedded in the wall body.

Through adopting above-mentioned technical scheme, when the concrete basic unit is under construction, set up embedded bar on the concrete basic unit, the wall body is under construction, inlays embedded bar and establishes in the wall body to increase the firmness that wall body and concrete basic unit are connected, thereby improve retaining wall holistic structural strength.

Optionally, the water filter comprises geotextile, and the geotextile is coated at one end of the drain pipe close to the back side of the wall body.

Through adopting above-mentioned technical scheme, through geotechnical cloth characteristic that permeates water impermeable soil, when guaranteeing that hydroenergy discharges through the bleeder smoothly, prevent permeable material through the bleeder loss.

In summary, the present application includes at least one of the following beneficial technical effects:

1. soil on one side of the back of the wall body is prevented from entering the water drain pipe through the permeable material, and the permeable material is prevented from flowing out of the water drain pipe through the water filtering piece, so that the soil layer on the side slope of the river channel is effectively prevented from flowing out through the water drain hole, and the protection effect of the retaining wall on the soil layer on the side slope of the river channel is greatly improved;

2. the strength of the wall body close to the side slope at the inner side of the river channel is increased through the gabion guard pad, and when the wall body is impacted by water flow, the possibility that the retaining wall deforms and collapses can be reduced;

3. through setting up the settlement joint on the concrete basic unit, set up the expansion joint on the wall body, the retaining wall is in the use, effectively avoids the wall body to receive climatic temperature variation, appears thermal expansion, shrinkage phenomenon, lead to the wall body to appear the crack, and because retaining wall bottom soil layer receives rivers to influence and takes place the loss of a certain extent easily, lead to the cavity to appear in partial retaining wall section bottom, break into the multistage with the concrete basic unit through the settlement joint to effectively avoid the concrete basic unit to receive partial wall section internal stress influence, lead to the concrete basic unit to appear the crack, even collapse.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of a part of the structure of an embodiment of the present application, mainly for expressing the structure of a concrete base layer.

Reference numerals illustrate: 1. a base groove; 2. a polished layer; 3. a concrete base layer; 31. pre-burying ribs; 32. a settlement joint; 33. a bump; 34. a groove; 35. leaching the asphalt wood board; 4. a wall body; 41. a drain pipe; 42. a water filter; 43. an expansion joint; 44. asphalt hemp ribs; 5. gabion pads; 6. a water permeable material; 61. a gravel layer; 62. a crushed stone layer; 63. a pebble layer.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a retaining wall structure for river course side slope. Referring to fig. 1, the river channel side slope construction method comprises a foundation groove 1 dug at the river channel side slope position, a riprap layer 2 paved in the river channel, a concrete base layer 3 poured in the foundation groove 1, and a wall body 4 fixedly arranged on the concrete base layer 3, wherein a gabion protection pad 5 is paved on the side slope of the river channel and positioned on one side of the wall body 4 close to the river channel.

Referring to fig. 1, when the retaining wall is constructed, a foundation trench 1 is dug on a side slope of a river along the length direction of the river, the dug depth of the foundation trench 1 is controlled to be 30-50cm, and the dug depth of the foundation trench 1 is deepened along with the increase of the sand content in the soil layer of the side slope of the river.

Referring to fig. 1, after the foundation pit 1 is dug, a riprap is carried out in a riverbed, and a riprap layer 2 is formed by ramming by a heavy hammer, and when the riprap layer 2 is in a riprap construction, the riprap layer is subjected to riprap layer by layer and ramming by adopting a layering method, the structural strength of soil layers at the bottom of a river channel is increased by the riprap layer 2, and the soil layers of the foundation pit are subjected to strict control of specifications of 10-100 kg, have good grading and freshness, do not contain sheets, do not contain weathering, water rust, clay and other organic harmful substances, have the strength of meeting the compressive strength in a saturated state in water of not less than 50Mpa, and are leveled while the riprap layer 2 is rammed, and after the riprap layer 2 is constructed, the overall thickness of the riprap layer 2 is controlled to be 1.5-3.0m, and the structural strength of soil layers at the bottom of the river channel is increased by the riprap layer 2, and the possibility of non-uniform settlement of a retaining wall is reduced.

Referring to fig. 1, after the stone throwing layer 2 is paved, a gabion mesh is paved at the side slope position of a river course to form a gabion protection pad 5, the gabion mesh tightly attached to the side slope of the river course is fixed on the side slope of the river course through anchor bolts, and after the construction of the gabion protection pad 5 is completed, sand is thrown on the stone throwing layer 2 and the gabion protection pad 5; the strength of the wall body 4 close to the inner side slope of the river channel is increased through the gabion guard pad 5, and when the wall body 4 is impacted by water flow, the possibility that the retaining wall deforms and collapses can be reduced.

Referring to fig. 1 and 2, a water drain hole is formed in a wall body 4, a water drain pipe 41 is fixed in the water drain hole, when the wall body 4 is poured and molded, the water drain pipe 41 penetrating through the wall body 4 is embedded in the wall body 4, the water drain pipe 41 is a PVC pipe, after the wall body 4 is molded, a permeable material 6 is backfilled on the back side of the wall body 4, in the application, the permeable material 6 is provided with a plurality of layers, the permeable material 6 sequentially comprises a permeable gravel layer 61, a gravel layer 62 and a pebble layer 63 from bottom to top, and the water drain pipe 41 is embedded in the gravel layer 61; the soil on one side of the back of the wall 4 is prevented from entering the water drain pipe 41 by filtering the water permeable materials 6 layer by layer, so that the soil layer on the side slope of the river channel is effectively prevented from losing through the water drain holes.

Referring to fig. 2, a drain pipe 41 is provided with a water filtering member 42 for preventing the water permeable material 6 from running off, in this application, the water filtering member 42 includes geotextile, the geotextile is wrapped at one end of the drain pipe 41 near the back side of the wall body 4, the geotextile is woven or spun by a machine, the geotextile should be smooth when laid, and the tightness is moderate, in other embodiments, the water filtering member 42 may be made of water permeable sponge, plastic filter core, etc.

Referring to fig. 1 and 3, a bound reinforcement cage is placed in a foundation trench 1, concrete is poured into the foundation trench 1 to form a concrete base layer 3, pre-buried ribs 31 are pre-buried in the concrete base layer 3 when the concrete base layer 3 is formed, a settlement joint 32 is arranged on the concrete base layer 3 every 10m along the length direction of the concrete base layer 3, a bump 33 is fixedly arranged on the concrete base layer 3 positioned on one side of the settlement joint 32, a groove 34 is arranged on the concrete base layer 3 positioned on the other side of the settlement joint 32 along the vertical direction, the bump 33 is slidably arranged in the groove 34 in a penetrating manner, and the bump 33 and the groove 34 are integrally cast with the concrete base; through setting up the settlement joint 32 on concrete basic unit 3, because the retaining wall bottom soil layer receives rivers to influence and takes place the loss of certain degree easily, lead to the cavity to appear in partial retaining wall section bottom to break into the multistage with concrete basic unit 3 through settlement joint 32 to effectively avoid concrete basic unit 3 to receive the influence of partial wall section internal stress, lead to concrete basic unit 3 to appear the crack, even collapse.

Referring to fig. 2, after the concrete base layer 3 is formed, asphalt-impregnated wood boards 35 are filled in the settlement joints 32, asphalt is poured into the settlement joints 32 to fix the asphalt-impregnated wood boards 35 after the asphalt-impregnated wood boards 35 are filled, then reinforcing steel bars are bound on the basis of the embedded ribs 31, templates are supported, a wall body 4 is poured, expansion joints 43 are arranged on the wall body 4 and positioned at the positions of each settlement joint 32, the width of each expansion joint 43 is 2cm, and asphalt-reinforced ribs 44 are filled in the expansion joints 43 after the wall body 4 is formed; set up expansion joint 43 on wall body 4, the retaining wall effectively avoids wall body 4 to receive climatic temperature variation, appears thermal expansion, shrinkage phenomenon, leads to wall body 4 to appear the crack, and fills settlement joint 32 through a plurality of asphalt planks 35 to fill pitch spareribs 44 in wall body 4's expansion joint 43, effectively avoid partial water to carry earth to flow through settlement joint 32 or expansion joint 43, cause soil erosion.

The implementation principle of the retaining wall structure for river side slope in the embodiment of the application is as follows: the soil on one side of the back of the wall body 4 is filtered layer by layer through the multi-layer permeable material 6, so that the soil is effectively prevented from entering the water drain pipe 41, and the permeable material 6 is prevented from losing from the water drain pipe 41 through the filtering water piece 42, so that the soil layer on the side slope of the river channel is effectively prevented from losing through the water drain hole, and the protection effect of the retaining wall on the soil layer on the side slope of the river channel is greatly improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a river course is retaining wall structure for side slope which characterized in that: including digging foundation ditch (1) of establishing in river course side slope position, pouring concrete foundation layer (3) in foundation ditch (1) to and fixed wall body (4) that set up on concrete foundation layer (3), the wash port has been seted up on wall body (4), pre-buried in the wash port has wash pipe (41), the backside of wall body (4) is backfilled permeable material (6), permeable material (6) cover on wash pipe (41), be provided with on wash pipe (41) and be used for preventing permeable material (6) loss drainage piece (42).

2. A retaining wall structure for a river side slope according to claim 1, wherein: the river channel is characterized by further comprising a riprap layer (2) paved in the river channel, wherein the thickness of the riprap layer (2) is 1.5-3.0m.

3. A retaining wall structure for a river side slope according to claim 2, wherein: and a gabion protection pad (5) is paved on the side slope of the river channel and positioned on one side of the wall body (4) close to the river channel.

4. A retaining wall structure for a river side slope according to claim 1, wherein: and a settlement joint (32) is arranged on the concrete base layer (3) every 10m along the length direction of the wall body (4), and an expansion joint (43) is arranged on the wall body (4) and positioned at the position of the settlement joint (32).

5. The retaining wall structure for river slopes as set forth in claim 4, wherein: the concrete base layer (3) positioned at one side of the settlement joint (32) is fixedly provided with a convex block (33), the concrete base layer (3) positioned at the other side of the settlement joint (32) is provided with a groove (34) along the vertical direction, and the convex block (33) is slidably arranged in the groove (34).

6. The retaining wall structure for river slopes as set forth in claim 5, wherein: the settlement joint (32) is filled with asphalt-impregnated wood boards (35), and the expansion joint (43) is filled with asphalt hemp ribs (44).

7. A retaining wall structure for a river side slope according to claim 1, wherein: the embedded ribs (31) are embedded in the concrete base layer (3), and the embedded ribs (31) are embedded in the wall body (4).

8. A retaining wall structure for a river side slope according to claim 1, wherein: the water filtering piece (42) comprises geotextile, and the geotextile is coated at one end, close to the back side of the wall body (4), of the drain pipe (41).