SU1530674A1 - Method of working-out a pit - Google Patents

Abstract

The invention relates to construction and is intended for the construction of supporting structures. The goal is to prevent the collapse of the walls of the pit. Vertical and inclined wells are drilled along the contour of the pit. Reinforcing rods are placed on the walls of the wells facing the inside of the pit with the release of their ends to the surface. Inclined wells are drilled vertically. The upper end of the flexible enclosure is placed on the rim of the excavation and the ends of reinforcing bars are passed through it. The latter are joined together by a grillage. Vertical piles are made with embedded parts. The connection of flexible fencing with vertical heaps is performed as the excavation proceeds with fixing its vertical piles. Flexible fencing can be made of geotextile material. Scrapers clean the surface of the slope. 7 il.

Description

(21) A387955 / 23-03 (22) 16.12.87 (46) 23.12.89. Bul № 47 (72) V.G. Arkhangelsky, V.A. Kozlov and Yu.P. Striganov

(53) 625.737 (088.8)

(56) Zubkov N.A. and others. Underground structures, build a wall in the ground ate way. -L.: LO Stroyizdat, 1977, p. 6-8.

Tetior A.N. Lightweight retaining walls in transport construction, M .: Transport, 1987, p. 48, 55, fig. 4.2.

(54) DEVELOPMENT METHOD

(57) The invention relates to construction and is intended for the construction of supporting structures. The goal is to prevent the collapse of the walls of the pit. Vertical and inclined wells are drilled along the contour of the pit. Aramatical rods are placed on the walls of the wells facing the inside of the pit, with their ends reaching the surface. Inclined wells are drilled vertically. The upper end of the flexible enclosure is placed on the rim of the excavation and the ends of reinforcing bars are passed through it. The latter are joined together by a grillage. Vertical piles are made with embedded parts. The connection of flexible fencing with vertical heaps is performed as the excavation proceeds with fixing its vertical piles. Flexible fencing may be made of geotextile material. Scrapers clean the surface of the slope. 7 il.

from €

(L

FIELD OF THE INVENTION The invention relates to construction and concerns the development of pits and the reinforcement of supporting structures.

The aim of the invention is to prevent the collapse of the walls of the pit.

FIG. 1 shows the location of the wells, the plan; in FIG. A-A in FIG. 1i in fig, mount q; in fig. BB in FIG. 3; in fig. 5 shows the attachment structure in front of the pit excavation; in fig. 6 - period fragments of the pit; in fig. 7 is a section bb of FIG. 6

The method includes drilling from the surface of the ground 1 vertical 2 and 2-section

3- section 4

. Inclined 3 wells below the bottom 4 of the excavation 5 along its contour, manufacturing grillage 6 and flexible enclosure 7, introducing reinforcing rods 9 into wells 2 and 3 with ends 8, filling wells 2 and 3 with concrete (solution) 10 and producing reinforced vertical and inclined piles 11, the rods 9 being placed on the walls of the wells 2 and 3, facing the inside of the excavation, with the release of their ends 8 on the surface 1, the wells 3 are drilled between the wells 2, and the vertical piles 11 are connected by a flexible barrier 7, while the upper end of the fence 7 placed on the edge of the pit And ropuskayut through 8 ends stersl

with

10, which are interconnected by a grillage 6. The connection of the fence 7 with its slabs 11 is made as the excavation deepens.

Piles 2 can be made with embedded parts 12 for attaching the enclosure 3 thereto by means of the overlays 13. The flexible enclosure 7 can be made of geotextile material.

The method is implemented as follows

A vertical 2 and inclined 3 are drilled along the contour of the trench 5 from the ground surface 1 at an angle of 60-45 to the horizon of the well with a design step one through, below the bottom 4 of the excavation, then the armature 9 is inserted into the wells, pointing to the side of the well the excavation pit and the wells are filled with concrete or cement mortar 10. On the surface of the soil 1, piercing the ends 8 of the reinforcement, a flexible barrier 7 is rolled, for example a geotextile material, the ends 8 of the rods 9 are monolithic reinforced concrete, geotextile canvas is rolled into a roll 14 on grillage 6 at Rusnė otkapyvaets pit by a predetermined mark 15 is cleaned by scrapers surface slope, 1 and stolen :: i zflr ----.

/

 ГЦ1 „

0

five

0

five

0

The geotextile material is laid down and lowered down and secured with overlays 13 to the embedded parts 12 of the piles 11.

Claims (1)

Invention Formula The method of excavation, including drilling along the contour of the vertical and inclined wells, introducing rebar into them, making vertical and inclined piles in the wells, connecting the vertical piles to each other with flexible fencing and excavating, in order to prevent the walls from collapsing the pit, reinforcing rods are placed on the walls of the wells facing the inside of the pit with the release of their ends to the surface, and inclined wells are drilled between the vertical, and the upper end of the flexible fences are placed on the side of the excavation and pass through the ends of reinforcing rods, which are joined together by a grillage, while the vertical piles are made with the mortgage parts, and the connection of the flexible fencing with the vertical hems is made as the soil is dredged and fixed vertical piles. Fi8.2 Fig.Z U FIG. five bb d yu FIG. FIG. 6 I1 i four.. III I 3 -14 I 1