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Plastic drainage board externally wound with heating wires and consolidation drainage construction method of plastic drainage board

A technology of plastic drainage board and construction method, which is applied in the direction of basic structure engineering, soil protection, construction, etc., can solve the problems of inapplicability, complicated operation, etc., and achieve the effect of convenient connection, simple construction and reasonable design

Pending Publication Date: 2019-07-12
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

At present, the U-shaped tube water injection heating method or the drainage board winding electric heating wire heating method are generally used. The operation is more complicated, so it is not suitable for on-site mechanical construction of the plug-in board. heated vertical drainage channel

Method used

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  • Plastic drainage board externally wound with heating wires and consolidation drainage construction method of plastic drainage board
  • Plastic drainage board externally wound with heating wires and consolidation drainage construction method of plastic drainage board
  • Plastic drainage board externally wound with heating wires and consolidation drainage construction method of plastic drainage board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The utility model relates to a plastic drainage board with a heating wire wrapped around it, comprising a plastic drainage board and a heating wire, and the heating wires are arranged on both sides of the plastic drainage board. The heating wire includes a glass fiber bundle c1, a resistance wire c2 and an insulating waterproof layer c3, the resistance wire c2 is spirally wound on the glass fiber bundle c1, and the outer layer of the resistance wire c2 is covered with an insulating waterproof layer c3.

[0046] Further, the insulating waterproof layer of the heating wire is made of silica gel.

[0047] Further, the insulation resistance of the insulating waterproof layer of the heating wire is greater than 500MΩ.

[0048] Furthermore, the heating wire has heat resistance and can be used for a long time at 150° C. without any change in performance.

[0049] Further, the outer diameter of the heating wire is 2-5mm, and the tensile strength is greater than 1kg.

[0050] ...

Embodiment 2

[0052] The concrete drainage construction method of the plastic drainage board surrounding the heating wire is as follows:

[0053] (1) The site is leveled, and the medium-coarse sand cushion m is laid, and its permeability coefficient is required to be greater than 10 -3 cm / s;

[0054] (2) Thread the plastic drainage plate a into the casing b first, lead out and bend it by 0.5m to prevent the plastic drainage plate from being brought back when it is pulled up;

[0055](3) Hang one end of the heating wire c on the top of the casing b, then hang freely along the casing, and go around the tube shoe of the casing. In order to protect the plastic drain board a and the heating wire c from being damaged during the insertion process, add a foam board d to the end of the tube shoe of the sleeve b;

[0056] (4) Insert the sleeve b to the specified depth at a certain rate through the inserting plate machine e. During the insertion of the sleeve, keep the heating wire on the other side...

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Abstract

The invention discloses a plastic drainage board externally wound with heating wires and a consolidation drainage construction method of the plastic drainage board. The plastic drainage board comprises a plastic drainage board body and the heating wires; the heating wires are arranged on the two sides of the plastic drainage board body and comprise glass fiber bundles, resistance wires and isolated waterproof layers; and the resistance wires are spirally wound on the glass fiber bundles and wrap the isolated waterproof layers on the outer layers of the glass fiber bundles. The plastic drainageboard externally wound with the heating wires is reasonable in design and simple in structure, the heating wires are externally wound on the outer side of the plastic drainage board, on the basis ofnot influencing the drainage function of the plastic drainage board, the plastic drainage board has the heating function at the same time, a heating structure of the plastic drainage board is high inleakproofness and high in waterproofing grade, driving construction of the plastic drainage board and the heating wires is easy, and connecting is convenient.

Description

technical field [0001] The invention belongs to the field of civil engineering foundation treatment, and in particular relates to a plastic drainage board with an outer heating wire and a construction method for its consolidation and drainage. Background technique [0002] Drainage consolidation method is widely used in soft clay foundation treatment. In order to shorten the drainage path and reduce the consolidation time, vertical plastic drainage boards need to be driven into the foundation. The plastic drainage board is a belt-shaped composite structure, with an extruded plastic core board in the middle, and the two sides of the core board are wrapped with non-woven geotextiles as filter layers. The plastic drainage board is generally led into the casing first, and the casing is driven to the specified depth by the plug-in machine, and then the casing is pulled out, and the plastic drainage board is left in the soil. The spacing is 0.7-2.0 meters. The horizontal draina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/11
CPCE02D3/11
Inventor 诸葛爱军陈富张健李立新喻志发
Owner TIANJIN PORT ENG INST LTD OF CCCC FIRST HARBOR ENG
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