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Drainage system and method for high-water-content slity soil

A high-moisture, silty soil technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of non-reusable, non-removable, long processing time, etc., and achieves reduced project cost, short drainage time, better effect

Inactive Publication Date: 2019-10-18
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned dehydration treatment method has technical defects and problems such as long treatment time, uneven drainage in the soil body, and some equipment can only be installed in situ, cannot be taken out, and cannot be reused.

Method used

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  • Drainage system and method for high-water-content slity soil
  • Drainage system and method for high-water-content slity soil
  • Drainage system and method for high-water-content slity soil

Examples

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Embodiment

[0097] Take the precipitation consolidation of a highway subgrade filling as an example. The subgrade filling of this project is mainly silty clay, and the empirical value of the permeability coefficient of this soil is 5×10 -7 m / s, due to atmospheric precipitation and artificial mining, groundwater flows from northwest to southeast, resulting in the moisture content of the silty clay in this foundation (ω 1 ) Reach 25% and above, which does not meet the requirements of being used as a roadbed filler. The water content is reduced to 12% to 15% by using the drying system and method for silty soil with high moisture content (ω 2 ), so that the silty clay meets the requirements of filling the highway roadbed.

[0098] Such as figure 2 As shown, a drainage system for silty soil with high moisture content is constructed. A square vacant land 22m long and 22m wide is planned around the highway construction project to remove surface debris and weeds in the square vacant land. The center ...

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Abstract

The invention discloses a drainage system and method for high-water-content slity soil, and belongs to the technical field of highway filler drainage engineering. The drainage system for the high-water-content slity soil comprises a filtering and draining device, a water collecting tank and a dewatering field; the filtering and draining device comprises a vacuum pump, an inner side pipe ring, an outer side water collecting pipe ring and multiple water filtering pipes communicating in sequence; the inner side pipe ring and the outer side water collecting pipe ring are both arranged above the water collecting tank; the inner side pipe ring and the outer side water collecting pipe ring communicate through multiple first connecting pipes; all the first connecting pipes are provided with air water control valves; the water filtering pipes are arranged at the bottom of the dewatering field; and the high-water-content slity soil to be drained is placed in the dewatering field. The drainage system and method for the high-water-content slity soil are quick, efficient, simple in construction process, low in construction quantity, low in construction cost and capable of being recycled.

Description

Technical field [0001] The invention relates to the technical field of expressway filling dewatering engineering, in particular to a dewatering system and method for silty soil with high moisture content. Background technique [0002] In highway construction projects, it is required that the foundation soil and backfill soil should have sufficient strength and stability, and cannot cause damage and large deformation, otherwise the highway roadbed and pavement will be damaged, which will not meet the requirements of use. Therefore, the choice of roadbed filler is particularly important. Silty soil with too high moisture content cannot be used as roadbed filler. In the prior art, drying treatment methods such as turning in the sun, mixing lime, and installing equipment on site to remove water from the soil are used. However, the above-mentioned dewatering treatment method has technical defects and problems such as long treatment time, uneven drainage in the soil body, and some equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/10E02D19/06
CPCE02D3/10E02D19/06
Inventor 张淑坤屠兴宇陆璐
Owner LIAONING TECHNICAL UNIVERSITY
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