RU1827410C - Method of walling in ground - Google Patents

Abstract

SUMMARY OF THE INVENTION: a method of erecting a wall in soil includes the development of a trench under the protection of a thixotropic mortar, installation of two longitudinal rows of precast concrete elements in the trench, displacement of the thixotropic mortar, and sealing joints between the precast elements. As prefabricated elements, piles are used that are placed relative to each other with a gap of no more than 15 cm. After installation, piles are finished through the headgear 1-2 m and below the bottom of the trench to the design depth. Then, after the thixotropic solution has been displaced, a distribution beam is made on the piles by laying the reinforcing cage and feeding the cast concrete mixture into the trench while sealing joints at the same time. 2 ill.

Description

The invention relates to traditional wall / wall methods where a fragment of the trench is from under a thixotropic suspension and where the load during operation is applied mainly vertically, continuously along the length, for example, from brick walls or from solid reinforced concrete massifs of considerable height.

The purpose of the invention is to reduce precipitation during the operation of the structure.

The goal is achieved by the following sequence of works: by trenching, the wall in the ground is torn from under the thixotropic suspension to a depth less than the design by 1-2 m; prefabricated reinforced concrete piles (driven elements) are installed in a trench close to each other over its entire area with a minimum clearance of no more than 15 cm; piles with the help of a headgear finish to the design depth; from the trench

the thixotropic suspension is squeezed, the reinforcing frame of the reinforced concrete beam is installed, the joints between the piles of molten concrete are poured and the distribution beam is concreted.

In FIG. 1 shows a cross section of a trench filled with a thixotropic slurry 1, open to mark 2, located 1-2 m above the design mark, into which piles 4 are placed on the bottom 5 close to each other with gaps of no more than 15 cm.

Fig. 2 shows a cross section of a trench, piles 1 in which are pushed into the bottom of the trench 5 to the design mark 3, the vertical rods of the reinforcing cages 6 are located in the gaps between the clogged piles 4, and these gaps and reinforcement are covered with concrete 7, forming together with fittings used distribution beam over the heads of piles.

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The load applied to the top of the distribution beam made of concrete 7 and reinforcement b uniformly transfers the load to the piles 4, which, being located at the design mark 3, transfer the load to the soil 5 qualitatively and evenly, and concrete 7 poured into the joints between the piles allows using its friction against the soil 5. The volume of monolithic concrete 7 is significantly reduced, t. because the piles 4 have a slight gap between themselves and the trench. Concrete 7 is prevented from being fed by the VPT method.

Claims (1)

Formula of the invention A method of erecting a wall in the ground, including the development of a trench under the protection of a thixotropic solution, installation in a trench of two longitudinal rows of precast concrete elements, displacement of a thixotropic mortar and sealing of joints between precast elements, distinguishing also with the fact that, in order to reduce precipitation during operation, piles are used as precast elements, placing them relatively one another with a gap no more than 15 cm, and after installing the piles they finish through the headgear 1-2 m below the bottom of the trench to the design depth, after the thixotropic solution has been displaced, a distribution beam is made on the piles by laying the reinforcing cage and feeding in a trench of cast concrete mix with simultaneous sealing of joints. I