Efficient water sucking-draining pipe for inner part of rock-soil body

Abstract

The invention discloses an efficient water sucking-draining pipe for the inner part of a rock-soil body. The efficient water sucking-draining pipe sequentially includes a protective layer, a water sucking layer and a water draining layer from outside to inside; the water draining layer includes a cylinder-shaped matrix, one end of the matrix extends outwards to form an evaporation end surface in ahorn shape, a plurality of axial capillary channels are correspondingly and evenly formed in the matrix and the evaporation end surface in the circumferential direction, and each of the capillary channels communicates with the external through capillary grooves formed in the radial direction; the evaporation end surface is placed on the outer part of the side slope rock-soil body in burying; thewater sucking layer includes a moisture absorbing-releasing fiber layer, the outer wall of the matrix is wrapped by the moisture absorbing-releasing fiber layer, and the moisture absorbing-releasing fiber layer is tightly attached to the capillary grooves, and the evaporation end surface is not wrapped by the moisture absorbing-releasing fiber layer; the protective layer includes a permeable earthwork filtering cloth, the outer part of the moisture absorbing-releasing fiber layer is wrapped by the permeable earthwork filtering cloth, and a plurality of fixing rings are arranged on the outer part of the permeable earthwork filtering cloth. According to the efficient water sucking-draining pipe, moisture in the wide-range soil body on the periphery can be actively sucked and quickly drained,capacities of water sucking and draining are high, the efficiency is high, and the water sucking range is wide.

Description

technical field [0001] The invention belongs to the technical field of drainage engineering and relates to a high-efficiency suction and drainage pipe used inside rock and soil bodies. Background technique [0002] At present, slope deformation caused by rainfall infiltration has become a problem that cannot be ignored in the field of highway engineering. Rainfall infiltration leads to swelling and softening of rock and soil mass, which reduces its strength and seriously weakens slope stability. Therefore, it is of great significance to discharge the rainwater inside the slope in time to improve the stability of the slope. [0003] Most of the existing slope drainage pipe structures adopt a drainage structure in which permeable geotechnical filter cloth is wrapped outside the perforated PVC drainage pipe. Water seeps through gravity and drains water by self-flow and self-overflow. The drainage efficiency is low and only a small area of ​​soil above the drainage pipe can be ...

AI Technical Summary

Problems solved by technology

The water-absorbent resin is in the form of powder, which needs to be evenly dispersed on the substrate to make a product during application, but the powder is not fixed and easy to move, resulting in uneven spreading and affecting the strength and integrity after water absorption

Water-absorbent fiber is a functional fiber developed on the basis of water-absorbent resin, which overcomes the shortcomings of water-absorbent resin; super absorbent fiber (SAF) has strong water absorption and can absorb 30-50 times its own weight of normal saline or more than 150 times Ion-free water, but it also has excellent water retention properties, making it difficult to separate out the absorbed water

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