Retaining wall

 

(57) Abstract:

The invention relates to the field of construction and can be used to reinforce slopes in the form of retaining walls in any soil and seismic conditions, and to create in a hilly area a large number of underground facilities. The aim of the present invention is to improve the stability of the wall under seismic effects and liquefaction of soils, making use of the underground volume of the spatial blocks. Retaining wall consists of a front wall and spatial blocks, the latter being made in the form of parallelepipeds with a gate on the front side, and the front wall is arranged only over the spatial blocks. 2 Il.

The invention relates to the field of construction and can be used to reinforce slopes in the form of retaining walls in any soil and seismic conditions, and to create in a hilly area a large number of underground facilities.

Retaining walls are widely used in the construction of buildings and structures in most parts of our country.

Known retaining wall series TC-02-108, the corners of which such wall construction have been significant efforts in the node sealing food plates, which leads to a high consumption of concrete.

The famous wall of similar construction with additional anchor-disposable plates [1] this slightly reduces the amount of concrete, but is complicated by the manufacturer and there is a possibility of collapse of the structure under seismic excitation and the liquefaction of the soil.

Known retaining wall of the small volume of hollow elements [2] In this case, the hollow three-dimensional elements, due to their small size, perform more decorative than structural features.

Also known retaining wall containing the front wall and spatial blocks [3] This device is made for the prototype.

The disadvantage of the prototype is that the stability of the retaining wall is provided by cancerovarian in soil spatial unit, which can lead to the loss of stability under seismic effects and liquefaction of soils, in addition, there is no possibility of useful life of the underground volume of the spatial blocks.

The aim of the present invention is to improve the stability of the wall under seismic effects and liquefaction of soils, providing opportunities espalieu wall, containing the front wall and the spatial blocks, the latter is in the form of parallelepipeds with a gate on the front side, and the front wall is arranged only over the spatial blocks.

The principal difference is that the stability of the spatial units is provided only prigruzkoj the overlying soil. In addition, the spatial design of the unit allows you to use all of his underground volume.

In Fig. 1 shows a schematic diagram of the retaining wall of Fig. 2 - scheme of the pressures on a retaining wall.

Retaining wall consists of a front wall 1 and the spatial unit 2 in turn consists of the fundamental slab 3, the end wall 4, the cover plate 5, the partitions 6 and the gate 7. From the backside of the retaining wall made of dirt backfill 8.

Retaining wall works as follows.

Lateral pressure of soil backfill 8 in the upper part of the perceived front wall 1 and is transmitted in the form of overturning moment on the spatial unit 2. Lateral pressure of soil backfill 8 below slab 5 through partitions 6 that act as buttresses, is transmitted to fundamental eredita on the fundamental plate 3 and with a large supply ensures the stability of the spatial unit 2. Location of gates 7 allows you to use the entire internal volume of the spatial unit 2.

The calculations show that at step partitions 3 meter plate coating thickness of 18 cm is able to withstand loads from soil backfill height of more than 7 meters (it is advisable to use precast slab, such as slab dwelling house series 138-with bezrulonnaya roof with changes in reinforcement). The stability of the spatial unit with a large margin is provided by the ratio of the length to the height of 1.5 or more. The front wall has a relatively small height and correspondingly small moment in sealing. The presence of small pressure drops below the fundamental stove provides the possibility of using this design retaining walls in a wide range of soil characteristics.

The use of the proposed retaining wall increases the stability of slopes under seismic impacts and liquefaction of soils, provides the possibility of using underground volume of spatial units, which allows you to place warehouses, garages, etc., without the use of surface area of land without compromising the architecture of the building. Inclusion in all e the save building materials, earthworks and, ultimately, reduces the cost of construction of the retaining wall, with a height difference of soil more than 3.5 meters, compared with the basic types of retaining walls.

1. Retaining wall containing the front wall and the spatial blocks, characterized in that, in order to increase the stability of the wall under seismic effects and liquefaction of soils, allow the use of the underground volume of spatial units, the latter is in the form of parallelepipeds with a gate on the front side, and the front wall are arranged only on the spatial blocks.

 

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