Steel plate pile surrounding purlin support system and foundation pit construction method adopting support system

A construction method and steel sheet pile technology, applied in sheet pile wall, foundation structure engineering, excavation, etc., can solve the problems of large reliability risk and force difference of the supporting system, and improve the stability and reliability. performance, ensuring reliability

Inactive Publication Date: 2018-12-18
THE FIFTH ENG CO LTD OF CHINA RAILWAY NO 10 ENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the support system of the side wall of the foundation pit, it supports the soil around the foundation pit vertically, so in the actual construction environment, the support system usually has to pass through multiple soil layers, such as: miscellaneous soil layers, Plain soil layer, clay layer, silt layer, silty clay layer, silty clay layer, clayey silt silt layer, round gravel layer, and fine sand layer, etc., the strength, engineering properties, and allowable bearing capacity of each soil layer The mechanical properties and physical properties are all different. Therefore, for the foundation pit support system, there may be large differences in the force of each part in the vertical direction, resulting in a large difference in the current support system. reliability risk

Method used

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  • Steel plate pile surrounding purlin support system and foundation pit construction method adopting support system
  • Steel plate pile surrounding purlin support system and foundation pit construction method adopting support system
  • Steel plate pile surrounding purlin support system and foundation pit construction method adopting support system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1, such as Figure 1-5 Shown:

[0045] A steel sheet pile purlin support system, comprising several steel sheet piles 1, the steel sheet piles 1 are sequentially connected to form a steel sheet pile wall for supporting the side wall of the foundation pit 3, and the steel sheet pile wall At least one set of inner support components for providing support in the horizontal direction is also provided on the inner wall.

[0046] In the steel sheet pile 1 surrounding purlin 2 support system of this embodiment, a number of steel sheet piles 1 are connected to form a steel sheet pile wall supporting the side wall of the foundation pit 3, and the inner wall of the steel sheet pile wall is also provided with a The internal support component that provides support for it in the horizontal direction, thus greatly improves the reliability of the steel sheet pile wall supporting the side wall of the foundation pit 3, so that even if the steel sheet pile 1 passes through multi...

Embodiment 2

[0055] Example 2, such as Figure 1-6 as shown,

[0056] A foundation pit construction method:

[0057] Including the step of inserting the steel sheet pile 1: after the steel sheet pile 1 is hoisted to the ground above the design position, the upper end of the steel sheet pile 1 is knocked, so that the steel sheet pile 1 is inserted into the soil layer 7. During the knocking and insertion process of the steel sheet pile 1, when After beating the steel sheet pile 1 for a period of time, the steel sheet pile 1 is pulled up to a certain height, and the steel sheet pile 1 is hammered again when water seeps into the space under the steel sheet pile 1, and so on until the steel sheet pile 1 is hammered to the designed position.

[0058] In the construction method of this embodiment, in the step of inserting the steel sheet pile 1, the method of repeatedly beating, repeatedly pulling up, and repeatedly inserting is adopted. After beating for a period of time, the steel sheet pile 1...

Embodiment 3

[0072] Example 3, such as Figure 1-5 Shown by:

[0073] A foundation pit construction method: including construction preparation steps, the construction preparation steps shown are as follows:

[0074] The inspection steps of the steel sheet pile 1: After the steel sheet pile 1 is transported to the construction site, it is sorted out, the debris in the lock 6 is removed, and the defective parts are repaired.

[0075] Lock 6 inspection method: Use a steel sheet pile 1 of the same type and specification about 2 meters long as a standard, and make all the same type of steel sheet pile 1 pass the inspection as lock 6. Correct the detected distortion and dead bend of the locking port 6 .

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Abstract

The invention relates to the technical field of building projects, and particularly designs a steel plate pile surrounding purlin support system and a foundation pit construction method adopting the support system. The steel plate pile surrounding purlin support system comprises a plurality of steel plate piles. The steel plate piles are sequentially connected to form a steel plate pile wall for supporting the side wall of a foundation pit. The inner wall of the steel plate pile wall is further provided with at least one inner supporting assembly for providing support for the steel plate pilewall in the horizontal direction. According to the steel plate pile surrounding purlin support system, the multiple steel plate piles are connected to form the steel plate pile wall for supporting theside wall of the foundation pit, meanwhile, the inner wall of the steel plate pile wall is further provided with the inner supporting assembly for providing support for the steel plate pile wall in the horizontal direction, accordingly, the reliability of supporting of the side wall of the foundation pit through the steel plate pile wall is greatly improved, so that even when the steel plate piles penetrate through a plurality of soil layers, the reliable support can still be provided.

Description

technical field [0001] The invention relates to the technical field of construction engineering, and specifically designs a steel sheet pile purlin support system and a foundation pit construction method using the support system. Background technique [0002] In the field of construction engineering technology, a foundation pit is a pit structure excavated at the foundation design position according to the base design elevation and foundation plane design size. During the excavation process, in order to ensure the safety of the excavation construction and the surrounding structures of the foundation pit, it is necessary to support and reinforce the side walls of the foundation pit. Although there are many foundation pit support systems at present, in actual construction, the inventor finds that the current foundation pit support systems still have deficiencies, specifically as follows: [0003] For the support system of the side wall of the foundation pit, it supports the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D5/04
CPCE02D5/04E02D17/04
Inventor 阮大伟陈蛟石雷王建朋钱宏春沃留杰谢开仲郭晓龚马驰
Owner THE FIFTH ENG CO LTD OF CHINA RAILWAY NO 10 ENG GRP
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