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Foundation pit support equipment for bridge foundation construction

A technology for foundation pit enclosure and bridge foundation, applied in infrastructure engineering, construction, excavation, etc., can solve problems such as short service life and slow construction speed, achieve good corrosion resistance, prolong service life, and increase construction speed Effect

Inactive Publication Date: 2022-05-13
邵斌磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a foundation pit enclosure protection device for bridge foundation construction, which has the beneficial effects of fast construction speed and long service life, and solves the problems of the existing drilling and grouting type soil nails mentioned in the above-mentioned background technology. Although the service life is long, the construction speed is slow, and the grouting type soil nailing, although the construction speed is fast, but the service life is short

Method used

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  • Foundation pit support equipment for bridge foundation construction
  • Foundation pit support equipment for bridge foundation construction
  • Foundation pit support equipment for bridge foundation construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1 to Figure 8 , the present invention provides a foundation pit protection equipment for bridge foundation construction, including soil nails 2 and a soil nail set 1 sleeved on the outside of the soil nails 2, the soil nail set 1 includes a main sleeve 101 and a positioning cylinder 102 , the positioning cylinder 102 is located at one end of the main sleeve 101, and the positioning cylinder 102 and the main sleeve 101 are connected by threads, the positioning cylinder 102 is provided with several movable baffles 1021, and the positioning cylinder 102 is provided with positions and The number of fixed slots 1022 corresponds to the number of movable stoppers 1021, and the end of the positioning cylinder 102 away from the main sleeve 101 is provided with a connecting rib 1023;

[0032]One end of the soil nail 2 is provided with a guide cap 3, and the end of the guide cap 3 near the soil nail 2 is provided with a baffle plate 301, and the baffle plate 301 is pro...

Embodiment 2

[0037] This embodiment is an explanation made on the basis of Embodiment 1. Specifically, please refer to figure 2 and Figure 8 , the guide cap 3 is a hollow structure, and the inner side of the guide cap 3 is provided with a limit block 308, and the limit block 308 is rotationally connected with the guide cap 3 through a pin shaft.

[0038] The guide cap 3 is a hollow structure, and a movable stop block 308 is provided in the guide cap 3. Under normal circumstances, the stop block 308 is arranged obliquely in the guide cap 3. When the soil nail 2 and the soil nail set 1 are driven After entering the soil body, continue to hammer the soil nail 2. At this time, the soil nail set 1 and the guide cap 3 do not move, while the soil nail 2 continues to move. When the soil nail 2 continues to move, the soil nail 2 will contact the limit block 308 conflict, and promote the movement of the limit block 308, the limit block 308 is eccentrically arranged, under the promotion of the soi...

Embodiment 3

[0041] This embodiment is an explanation made on the basis of Embodiment 1. Specifically, please refer to Figure 4 and Figure 5 The movable stopper 1021 is rotationally connected with the positioning cylinder 102 through a rotating shaft, and the end of the movable stopper 1021 close to the fixed groove 1022 is provided with a rubber gasket 1024, and the end of the movable stopper 1021 away from the rubber gasket 1024 is provided with a first stop protrusion From 1025. A fixing block 1026 is disposed in the fixing groove 1022 , and a plurality of protrusions 1027 are disposed at one end of the fixing block 1026 .

[0042] One end of the soil nail 2 close to the guide cap 3 is provided with a limit ring 202 , and the outer side of the limit ring 202 is provided with several limit stops 203 .

[0043] A movable stopper 1021 is provided in the positioning cylinder 102, and when the soil nailing set 1 is taken out, the movable stopper 1021 in the positioning cylinder 102 will ...

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Abstract

The invention relates to the technical field of foundation pit support equipment, and discloses foundation pit support equipment for bridge foundation construction, which comprises a soil nail and a soil nail kit sleeving the outer side of the soil nail, the soil nail kit comprises a main sleeve and a positioning cylinder, the positioning cylinder is located at one end of the main sleeve, and the positioning cylinder is located at the other end of the main sleeve. The positioning cylinder is arranged in the main sleeve, the positioning cylinder and the main sleeve are in threaded connection through threads, a plurality of movable blocking pieces are arranged in the positioning cylinder, fixing grooves are formed in the positioning cylinder, the positions and the number of the fixing grooves correspond to those of the movable blocking pieces in a one-to-one mode, and a connecting convex rib is arranged at the end, away from the main sleeve, of the positioning cylinder. According to the method, drilling in advance is not needed, the construction speed is effectively increased, after concrete filling, concrete can wrap the soil nail, the anti-corrosion effect is good, and the service life of the soil nail is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of foundation pit protection equipment, in particular to foundation pit protection equipment for bridge foundation construction. Background technique [0002] In the process of bridge construction, it is inevitable to encounter the problem of foundation pit excavation. The foundation pit enclosure system is to protect the safety of the surrounding environment of the foundation pit, and the measures adopted for the support, reinforcement, protection and groundwater control of the foundation pit. When excavating earthwork in a relatively open site, the slope is generally used to maintain the stability of the slope. To further improve the stability of the slope, it is necessary to use a soil nail wall. The soil nail wall is a primitive Soil reinforcement technology: the slope of the foundation pit is reinforced with soil nails made of steel bars, a steel mesh is laid on the surface of the slope, and a layer of ...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D5/76
CPCE02D17/04E02D5/76
Inventor 邵斌磊罗利淼朱溢敏李增辉
Owner 邵斌磊
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