CN217078778U

CN217078778U - Weathered argillaceous sandstone deep foundation pit excavation supporting structure

Info

Publication number: CN217078778U
Application number: CN202220804647.XU
Authority: CN
Inventors: 邵嘉兵; 简君; 王生涛; 杨庆; 鲍艮平; 余刚; 宋风宁
Original assignee: Anhui Road and Bridge Engineering Co Ltd
Current assignee: Anhui Road and Bridge Engineering Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-29
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a morals and manners argillaceous sandstone deep basal pit excavation supporting construction, including ground and deep basal pit, deep basal pit is located the below position of ground, the inboard a week of deep basal pit is provided with a plurality of groups along the wall bracing, on the ground and lie in along the wall bracing corresponding horizontal bar that is provided with directly over, the bottom equidistance of horizontal bar is provided with a plurality of groups fag end, the fag end utilizes wire rope to connect on following the wall bracing be provided with the compression structure between the bottom along the wall bracing. The utility model discloses a weathering argillaceous sandstone deep foundation pit excavation supporting structure, set up wire rope, utilize a plurality of groups of wire rope to hang the bracing, prevent it from appearing gliding along the slope; through setting up compact structure, rotate both ends lead screw, the lead screw displacement changes linear distance, makes two sets of wall bracing along of symmetry compress tightly by compact structure level, accomplishes the purpose that does not glide, is suitable for different working conditions, brings better use prospect.

Description

Weathered argillaceous sandstone deep foundation pit excavation supporting structure

Technical Field

The utility model relates to a building engineering technical field, in particular to morals and manners argillaceous sandstone deep basal pit excavation supporting construction.

Background

When the building foundation pit is constructed, in order to ensure the construction safety and prevent the occurrence of collapse accidents, support measures must be taken for the excavated building foundation pit. The design and construction of the building foundation pit support comprehensively consider factors such as engineering geology and hydrogeology conditions, the type of the foundation pit, the excavation depth of the foundation pit, drainage conditions, the requirement of the peripheral environment on the displacement of the side wall of the foundation pit, the peripheral load of the foundation pit, the construction season, the service life of the support structure and the like, and the reasonable design, the elaborate construction, the economy and the safety are realized; at present, the construction of deep basal pit needs to use supporting construction to support among the building engineering, but current supporting construction has following problem when using: the instability probability of the supporting structure in the foundation pit is increased along with the increase of the depth of the foundation pit, so that the supporting structure collapses; the current supporting construction of second is mostly the rigid support, can't adjust according to the on-the-spot needs, and the construction installation is complicated, for this reason, we provide a weathering argillaceous sandstone deep basal pit excavation supporting construction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a weathering argillaceous sandstone deep basal pit excavation supporting construction, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a morals and manners argillaceous sandstone deep basal pit excavation supporting construction, includes ground and deep basal pit, deep basal pit is located the below position of ground, the inboard a week of deep basal pit is provided with a plurality of groups along the wall bracing, on the ground and lie in along the wall bracing corresponding horizontal bar that is provided with directly over, the bottom equidistance of horizontal bar is provided with a plurality of groups of fag end, the fag end utilizes wire rope to connect on along the wall bracing be provided with compact structure between the bottom along the wall bracing, compact structure includes two sets of lead screws of seamless steel pipe and symmetry, the lead screw passes through screw-nut setting on the inner wall of seamless steel pipe, the one end that seamless steel pipe was kept away from to the lead screw is rotated and is provided with the bearing frame, the bearing frame welding is on along the wall bracing.

Preferably, the groups of inclined struts are combined along the wall and cover the inner circumference of the deep foundation pit.

Preferably, the horizontal bar spans part of the deep foundation pit and is horizontally arranged, the steel wire ropes are arranged at equal intervals, and the corresponding number of the steel wire ropes is set according to the width of the wall diagonal brace.

Preferably, a feed screw nut sleeve is arranged outside the feed screw nut and fixed on the inner wall of the seamless steel pipe, and the feed screw rotates between the bearing seat and the feed screw nut sleeve.

Compared with the prior art, the utility model discloses following beneficial effect has: the weathering argillaceous sandstone deep foundation pit excavation supporting structure is provided with steel wire ropes, and inclined struts are hung by utilizing a plurality of groups of steel wire ropes to prevent the inclined struts from sliding downwards along a slope; through the arrangement of the compression structure, the screw rods at two ends are rotated, the screw rods are displaced, and the linear distance is changed, so that two symmetrical groups of inclined struts along the wall are horizontally compressed by the compression structure, and the aim of preventing the inclined struts from sliding downwards is fulfilled; whole device design is simple, and convenient operation sets up spacing and fixed knot respectively to the upper and lower end of bracing to can adjust according to actual conditions, the effect of use is better for traditional mode, does not relate to the part in this device and all is the same with prior art or can adopt prior art to realize.

Drawings

Fig. 1 is a schematic view of the overall structure of the weathering argillaceous sandstone deep foundation pit excavation supporting structure of the utility model;

fig. 2 is an internal view of the weathered argillaceous sandstone deep foundation pit excavation supporting structure of the utility model;

fig. 3 is the utility model relates to a weathering argillaceous sandstone deep basal pit excavation supporting construction compact structure's concrete structure view.

In the figure: 1. a foundation; 2. a deep foundation pit; 3. a wall-following diagonal brace; 4. a horizontal bar; 5. rope sleeves; 6. a wire rope; 7. seamless steel pipes; 8. a screw rod; 9. a feed screw nut; 10. a bearing seat; 11. and (5) a compression structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-3, a weathering argillaceous sandstone deep foundation pit excavation supporting structure comprises a foundation 1 and a deep foundation pit 2, wherein the deep foundation pit 2 is located below the foundation 1, a plurality of groups of wall-following inclined struts 3 are arranged on the periphery of the inner side of the deep foundation pit 2, a horizontal bar 4 is correspondingly arranged on the foundation 1 and located right above the wall-following inclined struts 3, a plurality of groups of rope sleeves 5 are equidistantly arranged at the bottom of the horizontal bar 4, the rope sleeves 5 are connected to the wall-following inclined struts 3 through steel wire ropes 6, a compression structure 11 is arranged between the bottoms of the wall-following inclined struts 3, the compression structure 11 comprises a seamless steel pipe 7 and two symmetrical groups of screw rods 8, the screw rods 8 are arranged on the inner wall of the seamless steel pipe 7 through screw rod nuts 9, a bearing seat 10 is rotatably arranged at one end, far away from the seamless steel pipe 7, of the screw rods 8, and the bearing seat 10 is welded on the wall-following inclined struts 3;

a plurality of groups of wall-following inclined struts 3 are combined to cover the inner side of the deep foundation pit 2 for a circle; the horizontal bar 4 spans part of the deep foundation pit 2 and is horizontally arranged, the steel wire ropes 6 are arranged at equal intervals, and the corresponding number is set according to the width of the wall diagonal brace 3; and a feed screw nut sleeve is arranged outside the feed screw nut 9 and fixed on the inner wall of the seamless steel pipe 7, the feed screw 8 rotates between the bearing seat 10 and the feed screw nut sleeve, and the thread directions of the two groups of feed screws 8 are opposite.

What need to explain, the utility model relates to a weathering argillaceous sandstone deep basal pit excavation supporting construction, when using, to carrying out reinforcement from top to bottom along wall bracing 3, utilize a plurality of groups wire rope 6 to hang, prevent that it from appearing gliding along the slope to through setting up compact structure 11, rotate both ends lead screw 8, lead screw 8 displacement changes the straight-line distance, make two sets of wall bracing 3 of following of symmetry compress tightly by compact structure 11 levels, accomplish the purpose that does not glide, and is comparatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a weathering argillaceous sandstone deep basal pit excavation supporting construction, includes ground (1) and deep basal pit (2), its characterized in that: the deep foundation pit (2) is positioned below the foundation (1), a plurality of groups of wall-following inclined struts (3) are arranged on the periphery of the inner side of the deep foundation pit (2), horizontal bars (4) are correspondingly arranged on the foundation (1) and right above the wall diagonal braces (3), a plurality of groups of rope sleeves (5) are equidistantly arranged at the bottom of the horizontal bar (4), the rope sleeves (5) are connected on the wall-following inclined strut (3) by using steel wire ropes (6), a compression structure (11) is arranged between the bottoms of the wall-following inclined struts (3), the compaction structure (11) comprises a seamless steel pipe (7) and two symmetrical groups of screw rods (8), the screw rod (8) is arranged on the inner wall of the seamless steel pipe (7) through a screw rod nut (9), and a bearing seat (10) is rotatably arranged at one end, far away from the seamless steel pipe (7), of the screw rod (8), and the bearing seat (10) is welded on the wall-following inclined strut (3).

2. The weathered argillaceous sandstone deep foundation pit excavation supporting structure of claim 1, wherein: the groups of inclined struts (3) are combined together to cover the inner side of the deep foundation pit (2) for a circle.

3. The weathered argillaceous sandstone deep foundation pit excavation supporting structure of claim 2, characterized in that: horizontal bar (4) stride across partial deep basal pit (2) and the level sets up, wire rope (6) are the equidistance setting to set up corresponding quantity according to the width along wall bracing (3).

4. The weathered argillaceous sandstone deep foundation pit excavation supporting structure of claim 3, wherein: and a feed screw nut sleeve is arranged outside the feed screw nut (9) and fixed on the inner wall of the seamless steel pipe (7), and the feed screw (8) rotates between the bearing seat (10) and the feed screw nut sleeve.