Soft-soil consolidation drainage device
A drainage device and soft soil technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of non-reusable, poor drainage effect, high construction cost, etc., achieve good drainage effect, not easy to deform, and low construction cost Effect
Pending Publication Date: 2019-06-28
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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This kind of drainage device requires many engineering materials, long installation period, poor drainage effect, and the s
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Abstract
The invention discloses a soft-soil consolidation drainage device. The device comprises a vertically arranged screw pile, and a rotary shaft coaxial with the screw pile is installed in the screw pileand driven by a motor; the rotary shaft is of a hollow structure, a main hydraulic pipe and a main drainage pipe penetrate through the inside of a hollow structure of the rotary shaft, the main drainage pipe is connected with a vacuum pump, and the main hydraulic pipe is connected with a hydraulic pump; a plurality of vacuum preloading drainage pipes wind the outer side of the rotary shaft; the vacuum preloading drainage pipes horizontally penetrate out of the screw pile, the tops of the vacuum preloading drainage pipes penetrate out of the side wall of the rotary shaft, and a center hydraulicpipe is connected with the main hydraulic pipe; a drainage sleeve is connected with the main drainage pipe, and the bottom ends of the vacuum preloading drainage pipes are free ends. The device has the advantages that the installing period is short, the adaptability is high, the covering area is large, and the surrounding pressure difference of the vacuum preloading drainage pipes is small; deformation cannot be easily caused, the drainage consolidation effect is good, the consolidation drainage efficiency is good, the drainage effect is good, and the device can be recycled.
Description
technical field [0001] The invention belongs to the engineering field of rock and soil soft foundation treatment, in particular to a soft soil consolidation drainage device. Background technique [0002] At present, in the field of rock and soil soft foundation treatment engineering, a certain number of drainage boards are usually inserted into saturated soft soil foundations such as silt and dredging fill according to the requirements of a certain distance for soft foundation consolidation drainage. The prefabricated drainage channels on the plastic drainage boards will The moisture in the saturated soft ground is sucked out by a vacuum pump. This kind of soft ground consolidation drainage method requires special equipment to insert the drainage board into the foundation. Because the rigidity of the plastic drainage board is very small, the insertion depth is limited. In the straight state, wavy buckling will occur along the depth direction, which will affect the drainage ...
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IPC IPC(8): E02D3/10
Inventor 刘孟孟薛润泽刘红彪孙熙平张强徐满意刘现鹏
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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