Permeation increase siphon drainage system for low-permeability soil slope

A drainage system and low-permeability technology, applied in soil protection, construction, infrastructure engineering, etc., can solve the problems of a large amount of manpower and material resources, low drainage efficiency, small impact range, etc., achieve low cost, increase drainage efficiency, efficiency high effect

Active Publication Date: 2016-08-03
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the shortcomings of the siphon drainage method in the prior art, such as low drainage efficiency in low-permeability soil, small influence range, and the need for a large amount of manpower and material reso

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  • Permeation increase siphon drainage system for low-permeability soil slope

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[0023] The present invention provides an enhanced permeability siphon drainage system for low permeability soil slopes. The enhanced permeability siphon drainage system for low permeability soil slopes includes a fracturing injection system and a siphon drainage system. The injection system includes a high-pressure pump, a bored casing 3, and a permeable concrete 14. The siphon drainage system includes a siphon tube 5 and a collection tank 6. The siphon drainage system is a high-lift siphon drainage system with a head higher than 10m, which is used in the groundwater level The siphon is automatically activated when it is lifted, and the groundwater in the formation is discharged in real time, and the groundwater level is controlled below a safe water level. The bored casing 3 of the fracturing injection system is provided by the permeable concrete pumping port 7, the outer casing joint 8, and the inner casing pipe plug 9 , The inner casing 10, the outer casing 11, the directiona...

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Abstract

The invention relates to the technical field of drainage of low-permeability geotechnical engineering, in particular to a permeation increase siphon drainage system for a low-permeability soil slope. The permeation increase siphon drainage system is especially suitable for engineering drainage of low-permeability-coefficient water-rich strata. The permeation increase siphon drainage system is composed of a water-permeable concrete fracturing injection system and a siphon drainage system body. For the loess slope with low permeability and collapsibility, water-permeable concrete is pressed into the loess slope with low permeability, a high-permeability network channel is formed, and the range of influence that a cone of depression is generated by a single siphon drainage hole is widened. By means of a high-permeability water-permeable network, the drainage efficiency is increased; based on the high-lift siphon principle, redundant underground water in the slope is automatically and efficiently drained in real time, the underground water level of the slope can be controlled to be blow the safety water level, and no external power is needed; and the beneficial effects of being low in manufacturing cost and high in efficiency are achieved.

Description

technical field [0001] The invention belongs to the technical field of low-permeability soil drainage, in particular to a drainage method for forming a high-permeability network by pressing in permeable materials, and is especially suitable for drainage of foundations and side slopes composed of low-permeability soil. Background technique [0002] In the field of foundation treatment and landslide prevention and control, the timely discharge of groundwater contained in the soil is the key to the success of engineering treatment. However, for soils with very low permeability, the drainage process often takes a long time, which greatly affects the progress of the project. Increasing the drainage of low-permeability soils per unit time has become the main way to solve this problem. [0003] At present, in the field of foundation treatment, sand wells and plastic drainage plates are commonly used as drainage channels, and the pore water pressure is increased by means of surcharg...

Claims

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Application Information

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IPC IPC(8): E02D3/12E02D3/10E02D19/20
CPCE02D3/10E02D3/12E02D19/20
Inventor 于洋孙红月范雲鹤
Owner ZHEJIANG UNIV
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