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Reinforced gravity type retaining wall antiknock construction

A gravity-type retaining wall technology, applied to underwater structures, infrastructure engineering, water conservancy projects, etc., can solve the problems of increasing the cost of retaining walls, slow construction progress, uneconomical, etc., to improve anti-overturning ability and meet Anti-seismic requirements and the effect of reducing the cost

Inactive Publication Date: 2012-09-26
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the design of this kind of gravity retaining wall is quite conservative; but there are also cases where the retaining wall collapses due to poor consideration, and even the foundation slides as a whole or is knocked down due to landslides
The main disadvantages of the common gravity retaining walls at present are: large section, large number of collapsed works, slow construction progress, etc. The more important problem is that the seismic performance is poor in areas with high seismic intensity. The Wenchuan earthquake caused a large number of earthquake-affected mountainous areas. The failure of the gravity retaining wall has brought great economic losses to the country
The current design of increasing the overturning (seismic) capacity of the gravity retaining wall is mainly to increase the section of the retaining wall, thereby increasing the self-weight of the retaining wall to resist the earthquake force, but this increases the number of masonry and increases the cost of the retaining wall. economy

Method used

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  • Reinforced gravity type retaining wall antiknock construction
  • Reinforced gravity type retaining wall antiknock construction
  • Reinforced gravity type retaining wall antiknock construction

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 , figure 2 As shown, a reinforced gravity retaining wall includes a wall surface 1, a wall body 2, a wall back 3, and a base 6, and the wall back 3 is internally fixed with steel bars. The tensioning device 4 is composed of a plurality of tensioning bars, one end of which is fixed on the reinforcing bar so as to be connected to the wall back 3, and the rest of the part extends into the supported soil 5 and is connected with the supporting soil 5 as a whole. Two tie bars are parallel to each other, and a plurality of tie bars are installed parallel to the base 6. The tie bars can also be pre-embedded in the retaining wall while pouring the above-mentioned gravity-type reinforced retaining wall, and poured simultaneously with the retaining wall, and the connection method between the tie bars and the supported soil 5 can also be flexible Apply existing technology to connect.

Embodiment 2

[0019] Such as figure 1 , image 3 As shown, a reinforced gravity retaining wall includes a wall surface 1, a wall body 2, a wall back 3, and a base 6, and the wall back 3 is internally fixed with steel bars. Tensioning device 4 is made up of reticular geogrid, and one end is fixed on the reinforcing bar so as to be connected with wall back 3, and the rest part extends into supported soil 5, and is connected with supporting soil 5 as a whole, above-mentioned net The reticulated geogrids are parallel to each other, and a plurality of reticulated geogrids are installed parallel to the base 6. The mesh geogrid can also be pre-embedded in the retaining wall while pouring the above-mentioned gravity-type reinforced retaining wall, and poured at the same time as the retaining wall, and the connection between the mesh geogrid and the supported soil body 5 The method can also flexibly apply existing technologies for connection. At the same time, since the geogrid is a light-weight,...

Embodiment 3

[0021] A reinforced gravity retaining wall comprises a wall surface 1, a wall body 2, a wall back 3 and a base 6, and the wall back 3 is internally fixed with steel bars. The tensioning device 4 is composed of one or more geotextiles, one end is fixed on the steel bar so as to be connected with the wall back 3, and the rest of the part extends into the supported soil 5 and is connected with the supporting soil 5 as a whole. The plurality of geotextiles are parallel to each other, and the plurality of geotextiles are installed parallel to the base 6 . The geotextile can also be pre-embedded in the retaining wall while pouring the above-mentioned gravity-type reinforced retaining wall, and poured simultaneously with the retaining wall, and the connection method between the geotextile and the supported soil 5 can also be flexibly applied on-site. There are technologies to connect.

[0022] The manufacturing process of geotextiles is to first process polymer raw materials into si...

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Abstract

The invention discloses a reinforced gravity type retaining wall antiknock construction, comprising a wall surface, a wall body, a wall back and a substrate. The construction of the invention has the characteristics that the wall back is equipped with a connecting structure and a bracing apparatus, one end of the bracing apparatus is connected with the wall back through the connecting structure, other parts stretch into a supported soil body and are connected with the supported soil body as a whole body. By adopting the gravity type retaining wall antiknock construction of the invention, after the bracing apparatus stretches into the wall, the construction work is allowed to work together with the filling soil after the wall, which enhances the anti-overturning (antiknock) capability of the gravity type retaining wall without increasing a retaining wall cross section,, substantially reduces the cost of the gravity type retaining wall, and provides economy and practicability.

Description

Technical field [0001] The invention relates to civil engineering, in particular to a supporting roadbed retaining wall structure. Background technique [0002] A retaining wall refers to a structure that supports roadbed fill or hillside soil and prevents the deformation and instability of fill or soil. In the cross section of the retaining wall, the part directly in contact with the supported soil is called the back of the wall; the part opposite to the back of the wall is called the wall; the part in direct contact with the foundation is called the base; The opposite, top surface of the wall is called the top of the wall; the front end of the base is called the toe; the rear end of the base is called the heel. According to the location of the retaining wall, it can be divided into shoulder wall, embankment wall, cutting wall and hillside wall. The retaining wall set on the side slope of the embankment is called the embankment wall; the retaining wall whose top is locate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/02
Inventor 张建经曲宏略陈强马洪生庄卫林
Owner SOUTHWEST JIAOTONG UNIV
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