Degradable novel plastic drainage plate

Abstract

The invention relates to a soft soil foundation pre-pressing treatment technology in the field of geotechnical engineering, and discloses a degradable novel plastic drainage plate which comprises a plastic core plate and a degradable water-permeable filter membrane wrapping the outer side of the plastic core plate, the water-permeable filter membrane is bonded to the plastic core plate through hotmelting, and a through-flow guide pipe is arranged in the plastic core plate; the through-flow guide pipe longitudinally penetrates through the plastic core plate, and uniformly distributed water permeable holes are formed in the pipe wall of the through-flow guide pipe; and a plastic inserting box is arranged at the lower end of the drainage plate. The drainage plate can increase the overall drainage flux, improve the overall strength of the plastic drainage plate and expand the overall function of the plastic drainage plate by arranging the through-flow guide pipe and other structures, after the drainage plate is embedded into soil for a certain time, the water-permeable filter membrane automatically degrades, drainage holes are blocked, so that the drainage capacity is lost, and laterfoundation soil is prevented from continuously draining and solidifying; and in addition, the plastic inserting box us arranged to form a water accumulating space, so that water in soil pores can be discharged under the working condition that an upper sand layer is not paved, and the engineering operation is simplified.

Description

technical field [0001] The invention relates to a plastic drainage board used for preloading treatment of soft ground, in particular to a degradable novel plastic drainage board which includes a corrugated plastic core board and has a flow conduit, and belongs to the field of geotechnical engineering. Background technique [0002] During the construction of civil engineering infrastructure, deep soft clay foundations are often encountered. This kind of soil has low strength and permeability, and large deformation. It must be treated before development and utilization to be used as the foundation of buildings / structures. Common foundation treatment methods include replacement and filling method, dynamic compaction method, vibrating replacement method, drainage consolidation method and deep mixing method, etc. Among them, the drainage consolidation method is a foundation treatment method that adds various drainage conditions to the foundation and applies a preload to accelera...

AI Technical Summary

Problems solved by technology

This method requires many geotechnical materials, high cost, and long construction period, and the drainage effect of the harmonica-shaped drainage board is not very good in the drainage process of foundations such as silt and flushing soil; at the same time, conventional plastic drainage boards are difficult to degrade After the project is completed, it will exist in the soil for a long time and still have drainage function, which will cause continuous settlement and uneven settlement in the later stage of the project.

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