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Grouting device for preventing secondary sinking of open caisson

A grouting and caisson technology, applied in caisson, construction, infrastructure engineering and other directions, can solve the problem of no reliable grouting system to prevent secondary subsidence, so as to reduce the risk of uneven settlement and reduce secondary subsidence. sinking effect

Inactive Publication Date: 2016-03-09
SHANGHAI FOUND ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no reliable grouting system to preven

Method used

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  • Grouting device for preventing secondary sinking of open caisson
  • Grouting device for preventing secondary sinking of open caisson
  • Grouting device for preventing secondary sinking of open caisson

Examples

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Example Embodiment

[0012] The present invention will be further explained below in conjunction with specific embodiments.

[0013] Such as Figure 1 to Figure 3 As shown, a grouting equipment for preventing secondary sinking of a caisson includes a grouting pump 7, a mud mixing machine, a steel grouting pipe 4, a one-way valve, an unloading valve, a pressure gauge, a flow meter, and a bottom plate 1. , Well wall 2, blade foot 3, slurry storage tank 5, mixer 6, slurry pump 8.

[0014] The steel grouting pipe 4 is pre-buried in the shaft wall 2 and the blade foot 3 as a mud circulation pipeline. The end of the steel grouting pipe 4 is provided with several holes 9 for grouting; the upper end of the steel grouting pipe 4 passes through the pipe The grouting pump 7 is connected, and the grouting pump 7 is connected to the mud mixing equipment through a pipeline.

[0015] The grouting pump 7 is equipped with an unloading valve, a pressure gauge, and a flow meter. The pressure gauge is used to read and con...

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Abstract

The invention relates to a grouting device for preventing secondary sinking of an open caisson. The grouting device comprises a grouting pump, a mechanical mud stirring tool and steel grouting pipes. The steel grouting pipes are pre-embedded in a caisson wall and blade feet to serve as mud circulation pipelines. The tail ends of the steel grouting pipes are each provided with multiple primary grouting holes for grouting. The upper ends of the steel grouting pipes are connected with the grouting pump through pipelines. The grouting pump is connected with the mechanical mud stirring tool through pipelines. Grouting is conducted through the grouting device for preventing secondary sinking of the open caisson, secondary sinking of the open caisson can be reduced, and the risk of differential settlement caused by upper buildings is reduced.

Description

Technical field [0001] The invention relates to a caisson construction equipment, in particular to an equipment suitable for the construction of a caisson with a building (structure) above it. Background technique [0002] The caisson has many advantages such as large rigidity, high bearing capacity, and strong anti-seepage ability, making it one of the most important construction methods for large underground structures and deep foundations in cities. Of course, there are still some difficult technical problems in the caisson construction. For example, after sinking to the design elevation, the caisson will cause secondary sinking under the additional load of the upper building (structure), and the secondary sinking will cause additional stress on the upper building (structure) or additional stress on the upper structure. When uneven settlement occurs, it is likely to cause accidents such as wall or floor cracking, and even severely tilt the entire structure, affecting the use ...

Claims

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Application Information

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IPC IPC(8): E02D23/00E02D15/04
CPCE02D23/00E02D15/04
Inventor 李耀良袁芬王理想郑亮亮卢秀丽
Owner SHANGHAI FOUND ENG GRP
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