CN215857836U

CN215857836U - A unload power formula retaining wall structure for hydraulic engineering

Info

Publication number: CN215857836U
Application number: CN202122226660.XU
Authority: CN
Inventors: 胡永芳; 李琼瑛; 张华桥; 张森炀
Original assignee: Ningbo Shunfeng Ecological Construction Co ltd
Current assignee: Ningbo Shunfeng Ecological Construction Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-18
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses a force-unloading retaining wall structure for hydraulic engineering, which comprises a wall body, a bottom plate and a rammed plain soil layer, wherein a thick rubble layer is paved on the rammed plain soil layer, a concrete cushion layer is poured on the thick rubble layer, the bottom plate is poured on the concrete cushion layer, the wall body is fixed on the bottom plate, a force-unloading column row is arranged on the bottom plate behind the wall body along the length direction of the wall body, the force-unloading column row is composed of a plurality of force-unloading columns which are abutted against each other, the lower ends of the force-unloading columns are fixed with the bottom plate into a whole, the upper end surface of each force-unloading column is lower than the top surface of the wall body, a supporting filling layer is arranged between each force-unloading column row and the wall body, and a backfill layer is filled on the rear side of each force-unloading column row. The utility model has simple integral structure, strong anti-overturning capability and soil retaining bearing capacity, convenient construction and stable structure.

Description

A unload power formula retaining wall structure for hydraulic engineering

Technical Field

The utility model relates to a retaining wall, in particular to a force-unloading retaining wall structure for hydraulic engineering.

Background

The retaining wall is used for supporting a natural side slope or an artificial filling side slope to keep the side slope stable, has the functions of breaking the side slope by rainwater erosion, unloading collapse, underground water erosion and the like and regulating a slope body and the like, and is widely applied to side slope support, slag yard protection and the like in hydraulic engineering.

Existing retaining walls typically employ gravity retaining walls, which rely on their own weight to ensure their stability under the force of the earth's pressure. Gravity type retaining wall is the most commonly used structural style's of tradition retaining wall yet it exists bulky, the material is many, construction period is long grade defect, and the wall back is direct atress moreover, and antidumping ability and retaining soil bearing capacity are relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems of the gravity retaining wall in the prior art, and provides the force-unloading retaining wall structure for the hydraulic engineering, which has the advantages of simple structure, strong anti-overturning capability and soil-retaining bearing capacity, convenient construction and stable structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model relates to a force-unloading retaining wall structure for hydraulic engineering, which comprises a wall body, a bottom plate and a rammed plain soil layer, wherein a thick rubble layer is paved on the rammed plain soil layer, a concrete cushion layer is cast on the thick rubble layer, the bottom plate is cast on the concrete cushion layer, the wall body is fixed on the bottom plate, a force-unloading column row is arranged on the bottom plate behind the wall body along the length direction of the wall body, the force-unloading column row is composed of a plurality of force-unloading columns which are abutted against each other, the lower ends of the force-unloading columns are fixed with the bottom plate into a whole, the upper end surface of each force-unloading column is lower than the top surface of the wall body, a supporting filling layer is arranged between each force-unloading column row and the wall body, and a back filling layer is filled at the rear side of each force-unloading column row. According to the utility model, the supporting filling layer and the unloading column row are added behind the wall body, the unloading column row is composed of a plurality of unloading columns which are close to each other, the cylindrical unloading column has large bearing capacity, the stress surface is a round surface, soil pressure can be effectively dispersed, and the unloading function is played, so that the soil blocking bearing capacity of the wall body can be effectively improved, and the unloading column can be used for selecting concrete columns, stone columns, steel columns, piles or the like according to actual needs; a gap is reserved between the force-discharging column row and the wall body, the gap is convenient for construction of the force-discharging column row and is used as a space position for supporting a filling layer, filler is filled in the supporting filling layer, the force-discharging column row is stabilized and supported, and simultaneously friction is utilized, after the filler in the supporting filling layer is pressed, the load can be dispersed by means of the friction force between the filler, and the force-discharging effect is further realized; the solid plain soil layer, the thick gravel layer and the concrete cushion layer form a foundation; the bottom plate forms the foundation of the wall body and has a bottom bearing function, the structure is stable and firm, the wall body is not easy to settle, and the anti-overturning capability and stability of the wall body can be improved.

Preferably, the supporting and filling layer is filled with stone blocks, and the pores between the stone blocks are filled with fine stones. The pores between the stones are filled with fine stones to control the settlement of the stones.

Preferably, an inclined drain pipe is embedded in the wall body, the drain pipe penetrates through the supporting filling layer and the force-unloading column row, a water inlet of the drain pipe is located in the backfill layer, and the height of the water inlet of the drain pipe is higher than that of a water outlet of the drain pipe.

Preferably, the water inlet of the drain pipe is provided with a reverse filter material bag. The reverse filter bag prevents debris in the water from entering the drain pipe and blocking the drain pipe.

Preferably, a plurality of vertical settlement joints are arranged on the wall body at intervals along the length direction, the settlement joints penetrate through the bottom plate downwards, and waterproof fillers are filled in the settlement joints. Waterproof fillers are conventional materials in the art.

Preferably, one settlement joint is arranged at intervals of 20-25 m.

Preferably, a plurality of horizontal expansion joints are arranged on the wall body at intervals along the longitudinal direction, expansion joints are arranged at intervals of 1-2 m, and the width of each expansion joint is 1-3 cm.

Preferably, the backfill layer is filled with gravel.

Therefore, the utility model has the following beneficial effects:

(1) the supporting filling layer and the force-discharging column rows are added behind the wall body, the bearing capacity of the cylindrical force-discharging column is large, the bearing surface is a round surface, the soil pressure can be effectively dispersed, the effect of discharging is achieved, and therefore the soil blocking bearing capacity of the wall body can be effectively improved;

(2) a supporting filling layer is arranged between the force-discharging column row and the wall body, the supporting filling layer plays a role in stabilizing and supporting the force-discharging column row, and simultaneously, by utilizing friction, after fillers in the supporting filling layer are pressed, the load can be dispersed by means of the friction force between the fillers, so that the force-discharging effect is further played;

(3) the whole structure is simple, the anti-overturning capability and the soil retaining bearing capacity are strong, the construction is convenient, and the structure is stable.

Drawings

FIG. 1 is a cross-sectional view of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 2.

In the figure: the concrete filling layer comprises a wall body 1, a bottom plate 2, a rammed plain soil layer 3, a thick gravel layer 4, a concrete cushion layer 5, a force-discharging column 6, a supporting filling layer 7, a backfill layer 8, a drain pipe 9, a reverse filter material bag 10, a settlement joint 11 and an expansion joint 12.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

As shown in fig. 1, 2 and 3, the unloading retaining wall structure for hydraulic engineering comprises a wall body 1, a bottom plate 2 and a rammed plain soil layer 3, wherein a thick gravel layer 4 is paved on the rammed plain soil layer, a concrete cushion layer 5 is poured on the thick gravel layer, the bottom plate is poured on the concrete cushion layer, the wall body is fixed on the bottom plate, a unloading column row is arranged on the bottom plate at the rear part of the wall body along the length direction of the wall body, the unloading column row is composed of a plurality of unloading columns 6 which are close to each other, the lower ends of the unloading columns are fixed with the bottom plate into a whole, the upper end surface of each unloading column is lower than the top surface of the wall body, a supporting filling layer 7 is arranged between each unloading column row and the wall body, the supporting filling layer is formed by filling stones, pores among the stones are filled with fine stones, a backfill layer 8 is filled at the rear side of each unloading column row, the backfill layer is formed by filling gravels, an inclined drain pipe 9 is embedded in the wall body, and the drain pipe passes through the supporting filling layer and the unloading column row, the water inlet of drain pipe is located the backfill layer, and the water inlet of drain pipe highly is higher than the delivery port height of drain pipe, and the water inlet of drain pipe is equipped with anti-filter package 10, is equipped with a vertical subsiding crack 11 along length direction every 20m on the wall body, and the subsiding crack runs through the bottom plate downwards, and the subsiding crack intussuseption is filled with waterproof stopping, sets up a horizontally expansion joint 12 expansion joint width along vertical every 1m on the wall body and is 3 cm.

The construction method comprises the following steps: tamping the soil at the bottom layer to form a tamped plain soil layer; paving a layer of broken stone on the rammed plain soil layer to form a thick broken stone layer; pouring concrete on the thick rubble layer to form a concrete cushion; cement is poured on the concrete cushion layer to form a bottom plate, a wall body is built or poured on the bottom plate, meanwhile, a drain pipe is pre-buried in the wall body, a seam is formed on the wall body to form an expansion joint and a settlement joint, and a reverse filter bag is arranged at the inlet of the drain pipe; pouring or embedding the force-unloading columns behind the wall body to form a force-unloading column row; mixing the block stones and the fine stones according to a required proportion, and filling the mixture into a space between the wall body and the force-unloading column row to form a supporting filling layer; gravel is filled in the area of the force-relief column rows to form a backfill layer.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the utility model as set forth in the claims.

Claims

1. The utility model provides a unload power formula retaining wall structure for hydraulic engineering, a serial communication port, includes wall body (1), bottom plate (2) and rammed earth layer (3), rammed earth layer upper berth is equipped with thick metalling (4), concrete cushion (5) have been pour on the thick metalling, the bottom plate is pour on concrete cushion, the wall body is fixed on the bottom plate, is located and is equipped with the power of unloading row of post on the bottom plate at wall body rear along wall body length direction, and the power of unloading row of post comprises a plurality of power of unloading post (6) that are close to each other, it is fixed as an organic whole with the bottom plate to unload power post lower extreme, unloads power post upper end terminal surface and is less than the wall body top surface, unloads and is equipped with between power row of post and the wall body and supports filling layer (7), and the rear side that the power of unloading row of post is filled with back packing layer (8).

2. A force-releasing retaining wall structure for water conservancy projects according to claim 1, wherein the supporting and filling layer is filled with block stones, and the pores between the block stones are filled with fine stones.

3. A force-unloading retaining wall structure for water conservancy projects according to claim 1, characterized in that an inclined drain pipe (9) is buried in the wall body, the drain pipe passes through the support filling layer and the force-unloading column row, the water inlet of the drain pipe is positioned in the backfill layer, and the height of the water inlet of the drain pipe is higher than that of the water outlet of the drain pipe.

4. A force-releasing retaining wall structure for hydraulic engineering according to claim 3, characterized in that the water inlet of the drainage pipe is provided with a back-filter bag (10).

5. A force-unloading retaining wall structure for water conservancy projects according to claim 1, characterized in that a plurality of vertical settlement joints (11) are arranged on the wall body at intervals along the length direction, the settlement joints penetrate through the bottom plate downwards, and waterproof fillers are filled in the settlement joints.

6. A force-unloading retaining wall structure for hydraulic engineering according to claim 5, characterized in that one settlement joint is arranged every 20-25 m.

7. A force-unloading retaining wall structure for hydraulic engineering according to claim 1, characterized in that a plurality of horizontal expansion joints (12) are arranged on the wall body at intervals along the longitudinal direction, one expansion joint is arranged at intervals of 1-2 m, and the width of each expansion joint is 1-3 cm.

8. A force-releasing retaining wall structure for hydraulic engineering according to claim 1, wherein the backfill layer is filled with gravel.