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Hydrostatic hydraulic flushing and suction sinking well construction method

A construction method and hydraulic flushing technology, applied in caissons, infrastructure engineering, construction, etc., to achieve the effects of improving construction quality, saving construction resources, and reducing construction costs

Inactive Publication Date: 2019-06-07
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a static pressure hydraulic flushing caisson construction method, which can effectively solve the difficult problem of caisson construction under complex geological conditions, save construction resources and reduce construction costs

Method used

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  • Hydrostatic hydraulic flushing and suction sinking well construction method
  • Hydrostatic hydraulic flushing and suction sinking well construction method
  • Hydrostatic hydraulic flushing and suction sinking well construction method

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Embodiment 1

[0022] Such as figure 1 , figure 2 , image 3 Shown, a kind of static pressure hydraulic suction caisson construction method, the steps are as follows:

[0023] 1) Before the prefabrication of the well body 1, construct the cast-in-place piles 2 symmetrically on the outside of the four corners of the well body 1, control the elevation of the pile top to 0.5 meters above the ground, and insert the steel lattice columns 3, wherein the steel lattice columns 3 are inserted into the cast-in-place piles 2 3 meters, exposed 2 meters.

[0024] 2) Install a shaped steel beam 4 at the end of the steel lattice column 3 at the same angle of the shaft 1, and weld the shaped steel beam 4 and the steel lattice column 3 firmly. Such as figure 1 As shown, the four corners of the well body 1 are provided with shaped steel beams 4, and the shaped steel beams 4 on the two opposite corners of the well body 1 are parallel to each other, which are used to maintain the stability of the entire we...

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Abstract

The invention discloses a hydrostatic hydraulic flushing and suction sinking well construction method. Through modes of arranging a hydraulic mud flushing machine, a mud discharging pipe and other equipment and a pipeline circulation system at the bottom of a well and arranging cast-in-place piles and upper crossbeams on the periphery of a well body and the other modes, static hydraulic pressure and hydraulic flushing and suction mode can be used to smoothly sink the well body when an undrained method sinking well construction meets a local sand layer, and meanwhile, the uneven sinking of thewell body can be rectified in the process of sinking. The hydrostatic hydraulic flushing and suction sinking well construction method is extremely suitable for disaster relief and rescue or tight construction, can effectively solve the difficult problems of sinking well construction under complex geological conditions, significantly improve the construction quality, reduce the construction period,save construction resources, and reduce the construction cost.

Description

technical field [0001] The invention relates to the technical field of caisson construction, in particular to a static pressure hydraulic flushing caisson construction method. Background technique [0002] The caisson construction is to make an open reinforced concrete shell on the ground or pit first. After reaching a certain strength, the soil is excavated and transported in layers in the shaft. As the soil surface in the well gradually decreases, the caisson body is It is a deep foundation or underground engineering construction technology that overcomes the frictional resistance with the soil wall by its own gravity and sinks continuously. [0003] my country has a vast territory, and there are obvious geological differences across the country. Due to the geographic location in the southern coastal areas of my country, the underground soil usually contains a large amount of silt, silty soil and soft clay. These soil layers have high water content, large soil pores, poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/08
Inventor 水龙飞桂光红丁仲康王超
Owner CHINA MCC17 GRP
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