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Vacuum preloading and foundation heating combined foundation treatment system

A foundation treatment and vacuum technology, applied in soil protection, infrastructure engineering, construction, etc., can solve problems such as the reduction of drainage efficiency, and achieve the effect of reducing dynamic viscosity coefficient, reducing silting phenomenon, and improving soil strength.

Pending Publication Date: 2021-04-09
TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of silting and drainage efficiency reduction, combined with the potential demand of emerging drainage technologies, and fully considering the working characteristics of plastic drainage boards (belts), a foundation treatment system with vacuum preloading combined with foundation heating was invented.

Method used

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  • Vacuum preloading and foundation heating combined foundation treatment system
  • Vacuum preloading and foundation heating combined foundation treatment system
  • Vacuum preloading and foundation heating combined foundation treatment system

Examples

Experimental program
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Embodiment 1

[0034] See attached Figure 1-6 , a new type of plastic drainage plate and its end joints, including material drainage plate and its end joints.

[0035] (1) Plastic drainage board part

[0036] The plastic drainage board includes a core plate 1 and a filter membrane 2 coated on the core plate. The width of the core plate 1 is preferably 50-200 mm, and the thickness is preferably 8-20 mm. The core plate 1 is composed of a plurality of relatively independent channel tubes 3 arranged side by side. The connection composition; the filter membrane 2 is coated on the core plate 1, and the space between the filter membrane and the outer wall of the channel pipe 3 of the core plate 1 forms a drainage channel a (during the drainage construction of the vacuum preloaded foundation, the water in the soft ground and the Air can pass through the filter membrane and enter the drainage channel), and the inner channel of the channel pipe 3 itself forms the inner channel b, so that the plastic...

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Abstract

The invention discloses a vacuum preloading and foundation heating combined foundation treatment system. The foundation treatment system is characterized in that a plastic drainage plate is vertically arranged in a to-be-treated soft soil foundation, the plastic drainage plate comprises a core plate and a filter membrane coating the core plate, the core plate is formed by connecting a plurality of relatively independent channel pipes side by side, drainage channels are formed in the spaces between the filter membrane and the outer walls of the channel pipes of the core plate, internal channels are formed by internal channels of the channel pipes, the top end of the channel pipe of each plastic drainage plate is connected with a top end joint, and the bottom end is connected with a top end joint, so that each plastic drainage plate has a hot water circulation channel; a sand cushion layer is laid on the soft soil foundation, a transversely-arranged water filtering pipe is buried in the sand cushion layer, a sealing film is laid on the sand cushion layer, and a closed vacuum preloading system is formed; and circulating water inlets and circulating water outlets of the top end joints at the top ends of all the plastic drainage plates are connected with circulating heating equipment through pipelines to form a water circulating heating system capable of heating the soft soil foundation.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment, and in particular relates to a foundation treatment system combined with vacuum preloading and foundation heating. Background technique [0002] The plastic drainage board (belt) is composed of a plastic core with a longitudinal drainage channel and a permeable filter cloth. The core is generally made of polyethylene, polypropylene and other plastics, and the permeable filter cloth is generally polyester, vinylon and polypropylene. Short fiber impregnated non-woven geotextile or long fiber hot-melt non-woven geotextile. The drainage board can collect the water in the surrounding soil whose water pressure is higher than that in the board into the board and discharge it to the set place, so as to reduce the moisture content in the surrounding soil, so as to improve the strength of the soil and reduce the deformation of the soil . [0003] Plastic drainage boards (belts) hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/11
CPCE02D3/11E02D2300/0006
Inventor 郑爱荣李卫朱耀庭张笑寒
Owner TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG
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