RU2657879C1 - Method of producing piles for strengthening earthworks - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to the field of construction, including transport, road and hydraulic engineering, and can be used to strengthen earthworks for various purposes, including embankments of earthwork canvas, dams, slopes of earthworks, intended for construction of various structures on them and same objects built on weak, including marshy, soils. Method of manufacturing a pile with the reinforcement of an earthwork, mainly using a mobile mechanized complex, through which a borehole is drilled, fill the well with a hardening electrically conductive material, at several levels of the well, the working electrode of the electric pulse plant produces electrical pulses and replenishes the electrically conductive material, add the electrically conductive material to the full filling of the well, realizing the completeness of filling the well at the beginning of the leakage of the electrically conductive material from the well, while lifting the working electrode to the next level to produce electrical pulses is performed during the refilling of the electrically conductive material.

EFFECT: technical result consists in increasing the reliability and durability of the pile structure by ensuring the continuity of the pile and the protective layer of concrete reinforcing cage, while reducing the time of pile manufacturing.

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Description

The invention relates to the field of construction, including transport, road and hydraulic engineering, and can be used to strengthen earthworks for various purposes, including embankments of subgrade, dams, slopes of earthworks intended for the construction of various structures on them, etc. . objects built on weak, including marshy, soils.

A known method of manufacturing piles while strengthening an earthen structure using a mobile mechanized complex, which drill a well, fill the well with hardening conductive material, produce electrical impulses at several levels of the well with a working electrode of an electrical impulse installation and top up the conductive material (see RF patent No. 21114957 dated 10.07 .1997).

The disadvantage of this method is the lack of continuity of the piles and the protective layer of concrete reinforcing cage, as well as the duration of the manufacture of piles, due to the division of operations topping up the conductive material and raising the working electrode to the next level for the production of electrical pulses.

The technical result to which the invention is directed is to increase the reliability and durability of the pile structure by ensuring the continuity of the pile and the protective layer of concrete of the reinforcing cage with a simultaneous reduction in the time of manufacture of the pile.

The technical result is achieved by the fact that in the method of manufacturing piles while strengthening the earthworks, which drill the well, fill the well with hardening conductive material, produce electrical impulses at several levels of the well with the working electrode of the electrical impulse unit, and top up the conductive material, constantly monitor the level of conductive material in the well and as it falls, add conductive material until the well is completely filled, carrying out To control the completeness of filling the well at the beginning of the outflow of electrically conductive material from the well, while raising the working electrode to the next level for the production of electrical impulses is carried out during topping up of the electrically conductive material.

As an electrically conductive material, a fine-grained concrete mixture can be used.

If necessary, reinforcement of the well after filling the well with electrically conductive material before the production of electrical impulses, the reinforcing cage is lowered into it.

A method of manufacturing piles when strengthening an earth structure erected or being built in swamps, weak, mobile and unsteady soils, is carried out using a mobile mechanized complex (PMC) or using a manual drill by drilling wells, which are then filled with hardening electrically conductive material, for example, fine-grained concrete ( sand concrete).

Then, a working electrode is lowered into the well, which is connected to an electric pulse installation, and a predetermined number of electric discharges is produced when the electrode is located at different levels of the well.

Work on the installation of armored structures is carried out according to discharge-pulse technology.

When using PMK, the entire range of works on the installation of piles is performed using technological equipment installed at the PMK.

1. Drilling rigs on the front and rear platforms carry out drilling of wells.

2. Carry out the preparation of fine-grained concrete.

3. Fill the wells with concrete.

4. Immerse the working electrode in a well filled with concrete and perform a series of high-voltage electric discharges.

5. Raise the working electrode to the following levels, at each of which a series of high-voltage electric is performed. In the process of raising the electrode, the electrically conductive material is added until the well is completely filled, monitoring the completeness of the well at the beginning of the flow of electrically conductive material from the well.

6. If necessary, reinforcement of the well after filling the well with electrically conductive material before the production of electrical impulses, the reinforcing cage is lowered into it.

Thus, topping up of the electrically conductive material is actually synchronized with the end of the production of electrical pulses and raising the working electrode to the next level for the production of electrical pulses during the topping up process, which will automatically take into account the decrease in concrete level in the well due to the exit of a part of the electrode from the well.

The proposed technology for the manufacture of piles reduces the time of its manufacture and improves the quality of piles, because raising the electrode in the process of adding concrete means a combination of operations and ensures the continuity of the pile and the continuity of the protective layer of concrete of the reinforcing cage.

Claims (3)

1. A method of manufacturing piles when strengthening an earth structure mainly using a mobile mechanized complex, along which a well is drilled, a well is filled with hardening electrically conductive material, electric impulses are produced at several levels of the well with a working electrode, and electrical impulses are added and the electrically conductive material is topped up, characterized in that they are electrically conductive material until the well is completely filled, monitoring the completeness of the well Achal conductive material leaking from the hole, thus raising the working electrode to the next level for the production of electrical pulses is carried out during refilling conductive material. 2. The method according to p. 1, characterized in that the fine-grained concrete mixture is used as the electrically conductive material. 3. The method according to p. 1 or 2, characterized in that after filling the well with an electrically conductive material until the production of electrical pulses, a reinforcing cage is lowered into it.