Soft soil foundation treatment method combining local vacuum and high-pressure aerosol disturbance

A partial vacuum and soft soil foundation technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of difficult drainage facilities, non-drainage of deep soil, large settlement after construction, etc., to improve drainage efficiency, The effect of shortening the construction period and shortening the construction period

Active Publication Date: 2019-04-19
吴慧明
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Problems solved by technology

[0009] The purpose of the present invention is to provide a soft soil foundation treatment method combined with partial vacuum and high-pressure aerosol disturbance to solve the problem of non-drainage of deep soil, long construction period, and post-construction problems in the drainage consolidation surcharge preloading method in the prior art. Technical problems such as large settlement, no increase in horizontal drainage channels, and difficulty in strengthening drainage facilities after surcharge

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  • Soft soil foundation treatment method combining local vacuum and high-pressure aerosol disturbance
  • Soft soil foundation treatment method combining local vacuum and high-pressure aerosol disturbance

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Embodiment Construction

[0037] A method for treating soft soil ground with partial vacuum combined with high-pressure aerosol disturbance according to the present invention comprises the following steps:

[0038] A. Leveling the site, measuring and setting out: measure and set out the soft soil foundation that needs to be processed according to the requirements in the "Technical Specifications for Building Foundation Treatment", determine the treatment area, and level the site, and divide it into strips and parallel distribution according to the site conditions In the vacuum area and gas injection area, the width of a single strip in the vacuum area shall not be less than 10m, and the width of a single strip in the gas injection area shall not be less than 20m;

[0039] B. Set up vertical drainage channels: the top of the drainage body in the vacuum area is exposed to the surface of the soft soil foundation, and the top of the drainage body in the gas injection area is not higher than the surface laye...

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Abstract

The invention discloses a soft soil foundation treatment method combining local vacuum and high-pressure aerosol disturbance. The soft soil foundation treatment method comprises the following steps: dividing a soft soil foundation treatment field into a vacuum area and an air filling area which are in a strip shape, carrying out the vacuum pre-pressing operation in the vacuum area, carrying out the high-pressure aerosol disturbance operation in the air filling area, adding a transverse drainage passage in a soil body, discharging the water in the soft soil foundation via a vacuum period sand cushion layer by virtue of the transverse drainage passage and a vertical drainage passage under the vacuum negative pressure, wherein the vacuum negative pressure can greatly increase an injection radius and influencing range of the high-pressure aerosol of the air filling area, so that while the drainage efficiency is improved, the power consumption is reduced, and the working period is shortened.

Description

technical field [0001] The invention belongs to the technical field of geotechnical engineering. Specifically, it relates to a soft soil foundation treatment method, that is, a soft soil foundation treatment method in which partial vacuum is combined with high-pressure aerosol disturbance. Background technique [0002] Soft soils are mostly distributed in the southeast coast of my country. According to the geological origin, the soft soils can be divided into: coastal environmental deposition, marine and land transitional environmental deposition (delta deposition), river environmental deposition, lake environmental deposition and swamp environmental deposition. With the production and development of human society and the continuous increase of population density, more and more soft soil will be used as the foundation of buildings. When soft soil is used as a foundation or for other purposes, it needs to be reinforced. Due to the properties of high water content, high void ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00E02D3/10
CPCE02D3/00E02D3/10
Inventor 吴慧明
Owner 吴慧明
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