CN203625926U

CN203625926U - Reinforced soil wall

Info

Publication number: CN203625926U
Application number: CN201320821330.8U
Authority: CN
Inventors: 聂承凯; 赵虎生; 王文光; 满冠峰; 刘文进; 刘宇鹏; 张明欣; 肖俊秀; 贾计林; 李晓俊; 刘晓梁
Original assignee: Shanxi Traffic Planning Survey Design Institute Co Ltd
Current assignee: Shanxi Traffic Planning Survey Design Institute Co Ltd
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-06-04
Anticipated expiration: 2023-12-16

Abstract

The utility model relates to a reinforced soil wall, and solves the problems of high construction difficulty, long construction period, high requirement to foundation carrying capacity, high engineering cost and large land occupation area because of existing masonry structures. The reinforced soil wall comprises a gravel cushion set under the face of land; the gravel cushion has a gravel blocking layer set vertically on the edge of earth road shoulder; the outer side of the gravel blocking layer has a stopper layer; the stopper layer is formed by overlapping a plurality of stoppers from top to the bottom; each stopper is connected to geotechnical gratings inside the earth road shoulder in parallel; the upper end surfaces of the gravel blocking layer and the stopper layer are provided with hat stones; the hat stones are provided with an exhausting pipe at the outer side of the stopper layer; and the exhausting pipe is fixed with a pipe clamp. The utility model has reasonable and reliable composition and design, can contract slope toe and reduce land occupation; the cost and requirement of engineering to foundation carrying capacity are reduced; the construction period is shortened; the construction progress is accelerated, and good seismic performance is provided at the same time.

Description

Reinforced earth bulkhead

Technical field

The utility model relates to subgrade construction barricade, is specially a kind of reinforced earth bulkhead.

Background technology

Expressway construction plays huge impetus to national scientific research development, along with the quickening of developing steps, the increasing project of expressway construction will be in mountain area, build hills area, the engineering problem that the difficulty such as high slope, soft base is larger also runs into again and again, has brought the phenomenon that construction costs is high, land occupation is many thereupon.

Adopt traditional method of constructing roadway, otherwise extend and need a large amount of occupation of land without a gear backfilled slope, otherwise bricklaying structure is too huge, requires bearing capacity of foundation soil high, construction cost is large.In some entry portion engineering structures is built, all can realize by the past traditional way, but the expenditure of construction of Yin Gaoang and a large amount of land occupation are difficult to put into practice.

Summary of the invention

There is in order to solve existing masonry masonry structure the problem that difficulty of construction is large, the construction period long, high to ground requirement for bearing capacity, engineering cost is high and floor space is large in the utility model, a kind of reinforced earth bulkhead is provided.

The utility model is to adopt following technical scheme to realize: reinforced earth bulkhead, comprise the Base with Sand Gravel Cushion that is arranged on below, earth's surface, on Base with Sand Gravel Cushion, be provided with vertical setting and be positioned at the gravel gear layer at earth shoulder edge, gravel gear layer arranged outside has block layer, block layer is to be formed by stacking by several block bodies that distribute up and down, on each block body, be all connected with and be positioned at earth shoulder inside and horizontally disposed geo-grid, gravel gear layer and block layer upper surface are provided with cap stone, on cap stone, be provided with the gutter that is positioned at block layer outside, on gutter, be fixed with pipe clamp.

This barricade adopts upright structures, greatly reduce body of wall bricklaying consumption, the design of prefabricated block, has saved construction period, has overcome existing masonry masonry structure and has had the problem that difficulty of construction is large, the construction period long, high to ground requirement for bearing capacity, engineering cost is high and floor space is large.

The utility model reasonable in design is reliable, the effect of shrinking toe, reducing occupation of land is played in the setting of vertical type barricade, and lowered cost and the requirement for bearing capacity of engineering to ground, arranging of prefabricated block shortened the duration, accelerated construction speed, has good anti-seismic performance simultaneously.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

In figure: 1-Base with Sand Gravel Cushion, 2-gravel gear layer, 3-block layer, 4-geo-grid, 5-cap stone, 6-gutter, 7-pipe clamp.

The specific embodiment

Reinforced earth bulkhead, comprise the Base with Sand Gravel Cushion 1 that is arranged on below, earth's surface, on Base with Sand Gravel Cushion 1, be provided with vertical setting and be positioned at the gravel gear layer 2 at earth shoulder edge, gravel gear layer 2 arranged outside have block layer 3, block layer 3 is to be formed by stacking by several block bodies that distribute up and down, on each block body, be all connected with and be positioned at earth shoulder inside and horizontally disposed geo-grid 4, gravel gear layer 2 and block layer 3 upper surface are provided with cap stone 5, on cap stone 5, be provided with the gutter 6 that is positioned at block layer 3 outside, on gutter 6, be fixed with pipe clamp 7.

In specific implementation process, block body is No. 25 precast concrete blocks, and cap stone 5 is No. 15 precast concrete blocks, and 49.5 centimetres of the prefabricated block lengths of cap stone 5 are mixed 35% I level flyash, and two kinds of cap stone putting positions and traffic engineering chamber anticollision barrier plan match; Interior 10 centimetres of the prefabricated block body of geo-grid 4,40 centimetres of Grill spaces; Gutter 6 is every 5.0 meters of pvc pipes of establishing a horizontal external diameter 125mm, pvc pipe wall thickness 3.2 mm, and fixing with pipe clamp 7, pipe clamp 7 spacing are generally 1.0 meters; The tensile strength of geo-grid 4 requires to be not less than 160KN/m; Geo-grid 4 seams adopt plastic tape colligation, without overlap joint, require colligation spacing 1.0m.

Claims

1. a reinforced earth bulkhead, it is characterized in that: comprise the Base with Sand Gravel Cushion (1) that is arranged on below, earth's surface, on Base with Sand Gravel Cushion (1), be provided with vertical setting and be positioned at the gravel gear layer (2) at earth shoulder edge, gravel gear layer (2) arranged outside has block layer (3), block layer (3) is to be formed by stacking by several block bodies that distribute up and down, on each block body, be all connected with and be positioned at earth shoulder inside and horizontally disposed geo-grid (4), gravel gear layer (2) and block layer (3) upper surface are provided with cap stone (5), on cap stone (5), be provided with the gutter (6) that is positioned at block layer (3) outside, on gutter (6), be fixed with pipe clamp (7).