Vertical drainage channel pipe used for soft soil ground treatment

Abstract

The present invention discloses a vertical drainage channel tube used for the soft soil foundation management, and the vertical drainage channel tube consists of a spiral flexible steel wire skeleton and filter cloth. The present invention is characterized in that the filter cloth is covered on the outer side of the spiral flexible steel wire skeleton. The present invention has the strong drainage effect and the permeable effect, and integrates the water absorbing, the water penetration and the water drainage into a whole by utilizing the capillary phenomenon and the siphon principle, and the present invention has the pressure capability, the water permeability and the counter filter function which meet the requirements of engineering design. The present invention cannot be cracked because of the geological and the geographical changes, and the effect of clean water drainage can be realized without causing secondary pollution to the environment. The construction is simple, the connector is not required, no special requirements to the geology and the topography exist, and the adaptability is strong.

Description

technical field [0001] The invention relates to a vertical drainage channel pipe used in soft ground treatment. Background technique [0002] Commonly used vertical drainage channels in soft ground treatment include sand wells, bagged sand wells and plastic drainage boards. Sand wells and bagged sand wells are now replaced by plastic drainage boards due to their complex construction process and economic and environmental factors. As shown in Figure 1, the existing plastic drainage board is composed of a core board 1 and a filter cloth 2. A certain number of "U"-shaped grooves are arranged on the core board as a supporting frame and a drainage channel, and the filter cloth is laid on the core board. Above, the filter cloth is permeable and has a filtering effect on soil particles. During foundation treatment, the pressure water enters the core plate through the filter cloth and is discharged along the "u" groove of the core plate. The filter cloth is generally made of non-w...

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Problems solved by technology

The filter cloth is generally made of non-woven fabric or chemical fiber woven fabric that can seep water. Due to the limitation of material properties and structural type, the plastic drainage board is used as a vertical drainage channel. It has defects in lateral pressure resistance and water flow, and the lateral pressure resistance is small. The water flow is also small

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