Larsen steel sheet pile sinking method for avoiding obstacles in air

A Larsen steel sheet pile and steel sheet pile technology, applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of difficult construction of steel sheet piles, inability to perform ground operations, affecting the construction efficiency and construction quality of steel sheet piles, etc.

Inactive Publication Date: 2021-04-09
CHINA MCC20 GRP CORP
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the foundation pit enclosure construction, the enclosure structure of steel sheet piles is usually used, but in the actual construction process of steel sheet piles, it often occurs that ground operations cannot be carried out due to the influence of obstacles in the air
For example, the construction of steel sheet piles under high-voltage transmission lines leads to difficulties in the construction of steel sheet piles, and there are certain safety hazards, which seriously affect the construction efficiency and construction quality of steel sheet piles.

Method used

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  • Larsen steel sheet pile sinking method for avoiding obstacles in air
  • Larsen steel sheet pile sinking method for avoiding obstacles in air
  • Larsen steel sheet pile sinking method for avoiding obstacles in air

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Embodiment Construction

[0019] Example figure 1 , figure 2 and image 3 As shown, the Larsen steel sheet pile sinking method for avoiding obstacles in the air of the present invention comprises the following steps:

[0020] Step 1. Determine the height of the obstacle in the air. Set up the total station on the side with good visibility and about 30-40m away from the horizontal projection of the obstacle. Accurately measure the horizontal distance from the total station to the horizontal projection of the obstacle. The angle between the line of sight of the station instrument and the obstacle in the air and the horizontal line, according to the measured angle and horizontal distance, calculate the height of the obstacle in the air to the construction ground, and determine the airspace for safe operation of construction machinery in the air;

[0021] Step 2: Grinding the groove on both sides of the welded end of the steel sheet pile 1, the groove must avoid the bite of the steel sheet pile 1;

[0...

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Abstract

The invention discloses a Larsen steel sheet pile sinking method for avoiding obstacles in the air. The Larsen steel sheet pile sinking method comprises the following steps that the height of the obstacles in the air is determined through measurement of a total station, grooves are polished on two sides of welding ends of steel sheet piles, stiffening steel sheets for the welding ends of the steel sheet piles are manufactured, a first steel sheet pile is driven and ensured to be vertical, and pile sinking is stopped when the pile is sunk to 1.0 m away from the ground; and the four stiffening steel plates are welded to the two faces of the top ends of the steel sheet piles, the steel sheet piles to be lengthened are stably inserted into stiffening steel plate gaps formed in the tops ends of the sunk steel sheet piles, a steel sheet pile butt joint is welded firstly, then the stiffening steel plates and the steel sheet piles are welded, and pile sinking continues after the steel sheet piles and the stiffening steel plates are welded and cooled till construction of the foundation pit enclosure steel sheet pile structure is completed. According to the Larsen steel sheet pile sinking method for avoiding the obstacles in the air, the steel sheet piles are vertically welded and connected, welded joints are lengthened in a reinforced mode, the influence of the obstacles in the air on steel sheet pile construction is effectively avoided, construction operation safety is guaranteed, and the construction efficiency and construction quality of the steel sheet piles are improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a Larsen steel sheet pile sinking method for avoiding obstacles in the air. Background technique [0002] In the foundation pit enclosure construction, the enclosure structure of steel sheet piles is usually used, but in the actual construction process of steel sheet piles, it often happens that ground operations cannot be carried out due to the influence of obstacles in the air. For example, the construction of steel sheet piles under high-voltage transmission lines leads to difficulties in the construction of steel sheet piles, and there are certain safety hazards, which seriously affect the construction efficiency and quality of steel sheet piles. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a Larsen steel sheet pile sinking method for avoiding obstacles in the air. This method effectively avoid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/04E02D5/08E02D5/14
CPCE02D5/04E02D5/08E02D5/14
Inventor 许英杰章虎赵前程刘越晨姚鹏任高飞王瑜李雨均
Owner CHINA MCC20 GRP CORP
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