Vertical and transverse drainage system and construction method

Abstract

The invention relates to a vertical and transverse drainage system. The vertical and transverse drainage system comprises a vertical and transverse drainage barrel. The vertical and transverse drainage barrel is composed of a vertical drainage column and transverse plastic drainage belts, wherein the drainage column is a main drainage channel and transmits absorbed water to an upper cushion layer, and the plastic drainage belts are auxiliary drainage channels and transmit the absorbed water to the vertical drainage column. The plastic drainage belts are fixed to the flange face of a core column of the drainage column through high-strength glue and are wound around the periphery of the drainage column, the tail ends of the plastic drainage belts are bonded through low-strength glue, only one plastic drainage belt is bonded to one fracture surface, and the plastic drainage belts are spirally bonded to the periphery of the drainage column at equal intervals. The vertical and transverse drainage system overcomes the defects that in a traditional drainage solidification method, the arrangement of a drainage channel is single, and the drainage path is long, and the vertical and transverse drainage system and a construction beating method thereof are developed and can be directly used in the existing drainage solidification method for treating the soft soil foundation project.

Description

technical field [0001] The invention relates to a drainage channel required by a weak foundation using a drainage consolidation method, in particular to a vertical and horizontal drainage system and a construction method with drainage channels both vertically and horizontally. Background technique [0002] At present, in the treatment of soft foundations such as highways, high-speed railways, highway widening, municipal administration, airports, embankments, retaining walls, ports, etc., the drainage consolidation method is the most mature technology, the longest application time, and the most widely used method. According to the soft foundation treatment method, vertical manholes or plastic drainage belts are laid in the foundation, and the upper load is applied by vacuum preloading or surcharge preloading to increase the total stress of the foundation soil. According to the effective stress of Terzaghi Principle, as the water in the soil is discharged through drainage chan...

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Problems solved by technology

At present, related patents related to horizontal and vertical drainage include: three-dimensional drainage body and its construction method (Patent No. ZL 201110101665.8), three-dimensional drainage system in the backfill of retaining wall (Patent No. ZL200620049192.6), preloading method A three-dimensional drainage body used to treat soft soil foundations (patent number ZL 201120120733.0), a vertical three-dimensional drainage device for dredging silt reinforcement and its use method (application number CN201610195510.8, substantive review) and a three-dimensional composite plastic drainage board (patent number ZL 201320558931.4), etc. However, the structural components of these three-dimensional drainage are mainly metal components, and the depth of soft soil treated is limited. Most of them are mainly used to treat surface soft soil, and the cost is relatively high

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