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A kind of reconstruction device and construction method of shallow ground temperature energy utilization of pile-anchor support structure

A technology of support structure and construction method, which is applied in the field of reconstruction devices for shallow ground temperature energy utilization of pile-anchor support structures, can solve the problems of high cost, affecting the support capacity of the support system, and difficulty in recycling, etc., and achieves the realization of two re-use, enhanced stability, and accelerated thermal consolidation

Active Publication Date: 2022-04-08
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the direct buried pipe based on the buried pipe and support system has the disadvantages of high cost, affecting the support capacity of the support system and difficult to recycle.

Method used

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  • A kind of reconstruction device and construction method of shallow ground temperature energy utilization of pile-anchor support structure
  • A kind of reconstruction device and construction method of shallow ground temperature energy utilization of pile-anchor support structure
  • A kind of reconstruction device and construction method of shallow ground temperature energy utilization of pile-anchor support structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: as figure 1 As shown, a shallow ground temperature energy utilization transformation device for pile-anchor type support structure, in which a concentric heat exchange tube 2 is arranged in the bolt recovery hole 1, and the material of the concentric heat exchange tube 2 should be polyethylene (PE). It has the characteristics of good thermal conductivity, strong plasticity and easy connection. The concentric heat exchange tube 2 includes an inner tube 201 and an outer tube 203. A supporting connecting plate 204 is provided between the inner tube 201 and the outer tube 203. One end of the concentric heat exchange tube 2 inserted into the bolt recovery hole 1 is blocked, and the concentric heat exchange The side wall of the inner tube 201 at the end of the tube 2 is provided with a number of liquid-permeable holes 202, the outer tube 203 and the inner tube 201 of the concentric heat exchange tube 2 are respectively connected with the liquid inlet tube 3 and ...

Embodiment 2

[0047] Embodiment 2: different from Embodiment 1, such as Figure 6 As shown, in the step 2, the U-shaped heat exchange tube 8 is fixed with the profiled steel, and pressed into the pile body 7 along with the profiled steel. In the step 4, after the profiled steel is recovered, the thermally conductive backfill material 10 is backfilled in the profiled steel recovery hole 9 .

[0048] In this embodiment, the type of the U-shaped heat exchange tube 8 is not limited by the size of the section steel recovery hole 9 .

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Abstract

The invention provides a reconstruction device for utilizing shallow ground temperature energy of a pile-anchor support structure and a construction method thereof. In the reconstruction device, a concentric heat exchange tube is arranged in a bolt recovery hole, and the inner tube side of the end of the concentric heat exchange tube is A number of liquid-permeable holes are arranged on the wall, the outer tube and the inner tube of the concentric heat exchange tubes are respectively connected with the liquid inlet pipe and the liquid outlet pipe, and a filling layer is arranged in the gap between the concentric heat exchange tubes and the bolt recovery hole. The device and method realize the secondary utilization of the temporary support structure for exchanging heat with the surrounding soil and realizing the extraction of shallow ground temperature energy.

Description

technical field [0001] The invention belongs to the technical field of pile-anchor temporary support engineering reconstruction, and in particular relates to a reconstruction device for utilizing shallow ground temperature energy of a pile-anchor type support structure and a construction method thereof. Background technique [0002] With the development and utilization of rail transit, underground caverns and various urban underground space projects, foundation pit problems appear in more and more engineering cases. The excavation, unloading and construction disturbance of the foundation pit may destroy the original stress state of the soil, resulting in the deformation of the foundation pit wall, which in turn may lead to the destruction of the foundation pit. As a common form of foundation pit support, pile-anchor support structure has been more and more used in engineering practice in recent years. In actual engineering, as a temporary protection project, foundation pit ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/74E02D5/46F24T10/17
CPCE02D17/04E02D5/74E02D5/46F24T10/17Y02E10/10
Inventor 孔纲强方金城王乐华邓华锋孟永东许晓亮
Owner CHINA THREE GORGES UNIV
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