CN212612503U

CN212612503U - Foundation pit support anchor rod centering support

Info

Publication number: CN212612503U
Application number: CN202020597791.1U
Authority: CN
Inventors: 宗成山; 刘艳飞; 曹军伟; 晋康顺
Original assignee: China Construction First Group Corp Ltd
Current assignee: China Construction First Group Corp Ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-02-26
Anticipated expiration: 2030-04-21

Abstract

The utility model provides a excavation supporting stock centering support, it includes annular base, first bracing, second bracing and third bracing, the bottom of first bracing, second bracing and third bracing welds respectively on the annular base, the position at the bottom place of first bracing, second bracing and third bracing will annular base trisection, the neck of first bracing and the neck of second bracing are alternately and the welding together, the upper end of first bracing and the upper end of second bracing form fork form and prop up the mouth, the top of third bracing welds in the welding department of first bracing and second bracing, the welding department of first bracing and second bracing map perpendicularly in the central point of annular base. This excavation supporting stock centering support sets up in soil nail hole department, supports the outer end of soil nail, rectifies the position of soil nail in the hole, treats that the grout solidifies the back and takes away, and the turnover is used, and the high-usage reduces engineering cost.

Description

Foundation pit support anchor rod centering support

Technical Field

The utility model relates to an auxiliary device of foundation ditch soil nail, specific theory has related to a foundation ditch support stock centering support.

Background

The long anchor rods are mostly adopted in foundation pit support to manufacture soil nails, the soil nails are combined with the reinforcing mesh to reinforce the side slope, for an overlong soil nail structure, if the soil nails are close to 10 meters or even exceed 10 meters, the positions of the soil nails in soil nail holes are often required to be ensured through an auxiliary support structure, U-shaped supports which are designed at equal intervals are welded on the soil nails, the soil nails are supported through the contact of the U-shaped supports and the inner walls of the holes, but the structure is disposable, and the soil nails can be poured in the slope body along with the soil nails, so that the cost is high, and the soil nails cannot be reused.

In order to solve the above problems, people are always seeking an ideal technical solution.

Disclosure of Invention

The utility model aims at the not enough of prior art to a can have enough to meet the need use, reduce U-shaped frame quantity, simple structure, reduce construction cost's excavation supporting stock centering support is provided.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a foundation ditch support stock centering support, includes annular base, first bracing, second bracing and third bracing, the bottom of first bracing, second bracing and third bracing welds respectively on the annular base, the position at the bottom place of first bracing, second bracing and third bracing will annular base trisection, the neck of first bracing and the neck of second bracing are alternately and are welded together, the upper end of first bracing and the upper end of second bracing form fork-shaped support mouth, the top of third bracing welds in the welding department of first bracing and second bracing, the welding department of first bracing and second bracing map perpendicularly in annular base's central point.

Basically, the annular base, the first bracing, the second bracing and the third bracing are reinforcing steel bars.

Basically, the shape of the annular base is oval or circular.

Basically, the bottom welding of annular base has the flat board of preventing sinking.

Basically, the bottom of first bracing, second bracing and third bracing all surpasss annular base one section and forms the ground nail structure.

The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses when the soil nail operation is under construction, support in the position of soil nail hole mouth, treat to fill and solidify the back, tak the support away, the turnover use, to the longer soil nail of length, because the rigidity of reinforcing bar is limited, inside is rectified the position by the U-shaped support, and the outside is rectified through this excavation supporting stock centering support, has reduced the use quantity of U-shaped support, has reduced construction operation cost, and simple structure, easy-to-use.

Wherein, annular bracket's big end structure can prevent effectively that the support from being absorbed in earth, and the fork form that first and second bracing constitute props the mouth, can be used for supporting soil nail, and three welded position department is perpendicular to be mapped to annular base's central point has guaranteed the holistic stability of structure.

Drawings

Figure 1 is the utility model discloses well excavation supporting stock centering support's schematic structure drawing.

Fig. 2 is the utility model discloses well excavation supporting stock centering support applied state's schematic structure.

In the figure: 1. an annular base; 2. a first diagonal brace; 3. a second diagonal brace; 4. a third diagonal brace; 5. soil nailing; 6, a U-shaped bracket; 7. a fork-shaped branch port; 8. and the foundation pit support anchor rod is centered on the support.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

As shown in fig. 1 and 2, a centering support for a foundation pit supporting anchor rod comprises an annular base 1, a first inclined strut 2, a second inclined strut 3 and a third inclined strut 4, wherein the annular base 1, the first inclined strut 2, the second inclined strut 3 and the third inclined strut 4 are made of steel bars, the bottoms of the first inclined strut 2, the second inclined strut 3 and the third inclined strut 4 are respectively welded on the annular base 1, the bottom of the first inclined strut 2, the bottom of the second inclined strut 3 and the bottom of the third inclined strut 4 are divided into three parts, the neck of the first inclined strut 2 and the neck of the second inclined strut 3 are crossed and welded together, a fork-shaped support opening 7 is formed at the upper end of the first inclined strut 2 and the upper end of the second inclined strut 3, the top of the third inclined strut 4 is welded at the welding position of the first inclined strut 2 and the second inclined strut 3, and the welding position of the first inclined strut 2 and the second inclined strut 3 is vertically mapped to the central point of the annular base 1.

As shown in fig. 2, the supporting schematic diagram of the soil nail 5 with the length of 9 meters is shown, a plurality of U-shaped supports 6 are arranged on the soil nail 5 at equal intervals, a foundation pit supporting anchor rod centering support 8 is used for supporting the position of a soil nail hole, the soil nails of 5-7U-shaped supports 6 are originally needed, only 4U-shaped supports and one foundation pit supporting anchor rod centering support 8 are needed at present, and the number of the soil nails is large, so that the cost and the preparation time of a large number of U-shaped supports are reduced on the whole, the construction period of the engineering is shortened, the material waste is reduced, the utilization rate and the turnover rate of the equipment are improved, and the engineering cost is reduced.

The shape of the annular base 1 can be an ellipse or a circle, and various specifications can be manufactured according to actual conditions, so that the annular base can be adapted adaptively according to the field, in particular to a topographic map of a hole area.

In order to avoid overall collapse, the bottom end of the annular base 1 is welded with an anti-collapse flat plate, the shape of the flat plate is not limited, and the flat plate can be annular or a plurality of plane foot pads.

For convenient fixing, the bottom of first bracing 2, second bracing 3 and third bracing 4 all surpasss one section ground nail structure that forms of annular base, and is better to the effect of grabbing of bottom surface.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a foundation ditch support stock centering support which characterized in that: including annular base, first bracing, second bracing and third bracing, the bottom of first bracing, second bracing and third bracing welds respectively on the annular base, the position at the bottom place of first bracing, second bracing and third bracing will annular base trisection, the neck of first bracing and the neck of second bracing are alternately and are welded together, the upper end of first bracing and the upper end of second bracing form a fork-shaped mouth, the top of third bracing welds in the welding department of first bracing and second bracing, the welding department of first bracing and second bracing map perpendicularly in annular base's central point.

2. The alignment bracket for foundation pit support anchor rods of claim 1, wherein: the annular base, the first bracing, the second bracing and the third bracing are reinforcing steel bars.

3. A foundation pit support anchor rod centering support according to claim 1 or 2, wherein: the shape of the annular base is oval or circular.

4. The alignment bracket for foundation pit support anchor rods of claim 3, wherein: and an anti-sinking flat plate is welded at the bottom end of the annular base.

5. The alignment bracket for foundation pit support anchor rods of claim 4, wherein: the bottom of first bracing, second bracing and third bracing all surpasss annular base one section formation ground nail structure.