Positive and negative-pressure rapid consolidation method of hydraulic-filled sludge based on strength control

A technology of silt filling and strength control, applied in infrastructure engineering, soil protection, construction, etc., can solve problems such as unsatisfactory drainage consolidation effect and drainage board silting, avoid drainage board silting, improve drainage, etc. The effect of construction efficiency and broad market application prospects
CN106436680AActive Publication Date: 2017-02-22NANJING PANYUAN ENG TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING PANYUAN ENG TECH
Publication Date
2017-02-22

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Abstract

The invention discloses a positive and negative-pressure rapid consolidation method of hydraulic-filled sludge based on strength control. The positive and negative-pressure rapid consolidation method is characterized by comprising the following steps of arranging a drainage system in hydraulic-filled soft soil; arranging a moisture content detector in the hydraulic-filled soft soil; arranging a sealing film on the hydraulic-filled soft soil; then applying positive-pressure stack loads to the sealing film, and calculating the undrained strength of the hydraulic-filled soft soil in real time according to the moisture content measured by the moisture content detector; and starting the drainage system when the undrained strength, which is calculated according to the moisture content measured by the moisture content detector, of the hydraulic-filled soft soil reaches 1.5 kPa.
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Description

technical field

[0001] The invention relates to a method for rapid consolidation of dredged silt, in particular to a method for rapid consolidation of dredged silt under positive and negative pressure based on strength control, and belongs to the technical fields of water conservancy, coastal construction and port waterway engineering. Background technique

[0002] In recent years, in order to solve the current situation of shortage of land resources, large-scale land reclamation projects have been carried out in coastal areas of our country, resulting in large-scale dredging soft soil and occupying large areas of land resources. Dredging soft soil has unfavorable engineering characteristics such as high water content, high compressibility, and extremely low bearing capacity. It must be reinforced to meet the needs of subsequent engineering construction. The vacuum preloading method has unique advantages in dealing with soft soil foundations, and is widely used in convention...

Claims

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