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Method for processing soft ground by rapid pressurizing pre-compression

A treatment method and soft foundation technology, which is applied in the foundation treatment of extremely soft soil, the soft foundation treatment of rapid pressurized preloading method, and the field of saturated soft soil, can solve the problems of unsatisfactory construction speed and long construction period, and achieve shortened construction period, Small post-construction settlement and low cost

Inactive Publication Date: 2009-11-18
陈杰德 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The biggest disadvantage of the surcharge preloading and vacuum preloading method with vertical drainage body and horizontal drainage body is the long construction period, which cannot meet the needs of construction speed

Method used

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  • Method for processing soft ground by rapid pressurizing pre-compression
  • Method for processing soft ground by rapid pressurizing pre-compression
  • Method for processing soft ground by rapid pressurizing pre-compression

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Experimental program
Comparison scheme
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Embodiment Construction

[0017] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0018] Instructions marked in the attached drawings:

[0019] 1: Effective stress before treatment 2: Effective stress with precipitation increase

[0020] 3: Effective stress increased by preloaded vertical drainage body

[0021] 4: Effective stress increased by vibration boosting 5: Residual pore water pressure after treatment

[0022] 21: Horizontal drainage layer sump 22: Horizontal drainage channel

[0023] 23: stratum 1 24: plan to deal with stratum 2

[0024] 25: Underlying strata 26: First-level stacking

[0025] 27: The second level of stacking 28: The third level of stacking

[0026] 29: Vertical drainage body 30: Vibrator connecting rod

[0027] 31: Vibrator head 32: Pressure zone centered on the vertical drainage body

[0028] 33: Excess pore water pressure zone centered on the vibrator

[0029] Such as Figure 1-4 As shown, the sof...

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Abstract

The invention discloses a method for processing a soft ground by rapid pressurizing pre-compression, which is characterized by comprising the following steps: (1) arranging a vertical drainage system in a stratum, arranging a horizontal water collecting and drainage rough sand layer and horizontal drainage pipes on ground surface, and burying vibrators at certain intervals while arranging the vertical drainage system; and (2) while applying a static drainage consolidation method, starting the vibrators to make soft soil generate a high pore water pressure that is superposed with a pressure generated by the static drainage consolidation method to drain water in the soft soil quickly. Compared with the conventional vacuum pre-compression or preloading, the method can reduce construction period by more than 1 / 3, improve consolidation and reduce after-construction settlement and cost.

Description

technical field [0001] The invention relates to a foundation treatment method for saturated soft soil and extremely soft soil, and belongs to the technical field of soft soil foundation treatment in geotechnical engineering. Specifically, it is a soft foundation treatment method of rapid pressurization and preloading. Background technique [0002] In recent years, with the rapid development of my country's economic construction and the increasing shortage of land resources in my country, large-scale land reclamation projects and dock yard projects have been vigorously carried out in my country's coastal zone. Such sites are mostly silt, muddy soil, and sandy soil with high water content, which must be consolidated before they can become usable land resources. Therefore, it is an urgent need for economic construction to quickly treat this kind of high water content soft soil. [0003] Over the past decades, my country has accumulated many successful technologies for dealing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/02E02D3/10E02D3/046
Inventor 陈杰德吴名江吴价城武亚军
Owner 陈杰德
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