A method of using slanted hole cloth bag piles to control settlement excess of soft foundation

A cloth bag and soft foundation technology is applied in the field of settlement over-limit treatment of roadbed after construction, which can solve the problems of waste of grouting process and reduced grouting effect of flower tube, and achieve the effect of reducing treatment cost, weakening influence and reducing infiltration.

Active Publication Date: 2022-03-01
JSTI GRP CO LTD
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  • Application Information

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Problems solved by technology

In the existing settlement control scheme through flower tube grouting, not only additional rotary grouting pile equipment is required for curtain construction, but also there is a huge waste in the grouting process. In areas such as small infiltration paths and poor areas, the effect of flower tube grouting will be greatly reduced

Method used

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  • A method of using slanted hole cloth bag piles to control settlement excess of soft foundation
  • A method of using slanted hole cloth bag piles to control settlement excess of soft foundation
  • A method of using slanted hole cloth bag piles to control settlement excess of soft foundation

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] combine figure 1 , a method of using inclined hole cloth bag piles to control soft foundation settlement exceeding the limit, the method steps are as follows:

[0024] Step 1: See figure 2 , through the subgrade settlement monitor 4 to monitor the vertical deformation of the subgrade structure 12 during the road and railway operation stages, locate the post-construction settlement exceeding the design standard road section, and at the same time target the subgrade structure 12 top, slope toe, and 5~ after the slope during the treatment process The monitoring system is deployed within a range of 10m, and the stress and stability of the subgrade structure 12 and the foundation treatment pile 3 are analyzed at the same time to ensure the safety of the grouting construction process in the later stage; It is better to carry out the calculation work of st...

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Abstract

The invention discloses a method for controlling soft foundation settlement overrun by using inclined-hole cloth bag piles, which is suitable for soft foundation post-construction settlement overrun control projects, including cloth bag pile bodies, pipe ends and pipe top positioning sleeves, steel bar chucks, plugging During the road operation period, cloth bag grouting piles are installed in the oblique holes on both sides of the roadbed, and the overall deformation of the roadbed structure is adjusted by using its isolation and expansion characteristics. The invention can give full play to the grouting efficiency, reduce the grouting loss, the control process is controllable, the risk is small, and the cost is low. The grouting process has little impact on the natural stratum environment, conforms to the principle of environmental protection construction, and can safely and effectively solve the problem of post-construction in soft soil areas. Settlement overrun problem.

Description

technical field [0001] The invention belongs to the post-construction subsidence overrun treatment technology, in particular to a method for treating soft foundation settlement overrun by using bag piles with oblique holes. Background technique [0002] With the construction and operation of a large number of highways and railways in my country, the problem of subgrade settlement in soft soil areas has increased year by year, which seriously affects the safety and comfort of driving. The main reason is the high moisture content and high compressibility of soft soil. In the existing settlement control scheme through flower tube grouting, not only additional rotary grouting pile equipment is required for curtain construction, but also there is a huge waste in the grouting process. In areas such as small seepage paths that are not smooth, the effect of flower tube grouting will be greatly reduced. [0003] Therefore, there is an urgent need for a method that can effectively so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/12E01C3/04
CPCE02D3/12E01C3/04
Inventor 周俊杰白兰兰洪雷
Owner JSTI GRP CO LTD
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