SU1649043A1 - Method for constructing a retaining wall - Google Patents

Abstract

The invention relates to methods for constructing retaining walls and permits an increase in the strength of the retaining wall by increasing the adhesion of reinforcing elements to the backfill of clay material. The method of erection of the retaining wall includes layer-by-layer filling of soil 1 with layer-by-layer compaction and laying between the layers of reinforcing elements 2. The filling of soil 1 is made of a clay material. Reinforcing elements 2 are made of multi-layer geotextiles with an electrically conductive layer. The electrically conductive layers are alternately connected to different poles 7 and 8 of the direct current source 9 and periodically change the poles of this compound to opposite signs. The duration of the current passage in one direction is at least 0.1 h, and the total current passing time is equal to the decomposition time of the electrically conductive layers 4 Zil. SP S o 4b th o N sa Figure /

Description

The invention relates to the construction and relates to a method of building a retaining wall,

The purpose of the invention is to ensure the strength of the retaining wall by increasing the adhesion of the reinforcing elements to the backfill of clay material.

1 shows a retaining wall, erected by the proposed method, a cross-section; FIG. 2 shows the node I in FIG. one; Fig. 3 shows embodiments of an electrically conductive layer in the form of fibers.

The method of erection of the retaining wall includes layer-by-layer filling of the soil 1 with layer-by-layer compaction and laying between the layers of reinforcing elements 2. The filling of the soil 1 is made of a clay material. The reinforcing elements 2 are made of geotextile 3 with an electrically conductive layer 4.

The electrically conductive layer 4 is laid along the top or the bottom of the reinforcing element 2. The electrically conductive layer can also be provided in the form of fibers 5, which are pierced with the reinforcing element 2.

The method is carried out as follows.

The soil is filled with compaction of the clay soil 1 and a reinforcing element 2 with an electrically conductive layer 4 is laid on top of each layer. An outer lining 6 is installed for each layer with the fastening of the lining 6 to the reinforcing elements 2.

During the construction of the retaining wall, the electrically conductive layers 4 are periodically connected to different poles 7 and 8 of the source 9 of direct current with a period of current flowing in one direction at least 0.1 hours and the total time of current passing in one direction determined by the formula

g- m t a-z1

where m is the mass of the metal of the electrically conductive layer;

a is the electrochemical equivalent of a conductive element metal; z is the power of the transmitted current. The current is passed through the electrically conductive layers 4 until they are completely decomposed.

The implementation of a reinforcing element located in a clay material multilayered bed of geotextile with an electrically conductive layer with a direct current supply with a periodic change in its direction increases the adhesion of the reinforcing elements to the backfill due to decomposition of the electrically conductive layers of the reinforcing elements, with which strength retaining wall.

Changing the poles of current sources to opposite signs with the duration of the passage of current in one direction less than 0.1 h does not allow for the decomposition of the metal of the conductive layer, since metal ions do not have time to go into the ground and the surrounding soil does not fix.

Laying electrically conductive layers on

top or bottom of the reinforcing element increases the decomposition of electrically conductive layers, which in turn increases the adhesion of the reinforcing elements to the backfill.

Claims (1)

Invention Formula A method of erecting a retaining wall, including layering of soil with compaction, laying between layers of backfill reinforcing elements and mounting a face fence, characterized in that, in order to increase the stability of the retaining wall by increasing the adhesion of reinforcing elements to the backfill of clay material, each reinforcing element are made of a layer of geotextile and an electrically conductive layer and pass a constant electric current through the electrically conductive layer until its complete decomposition with a periodic change in pressure Display current at intervals of not less than 0.1 h. 7 J 4 XX FIG. 2 fig.Z