Construction method of horizontal pipe of buried-pipe ground source heat pump based on pond residue stratum
A technology for ground source heat pumps and horizontal pipes, which is applied in the direction of pipes/pipe joints/fittings, pipe laying and maintenance, mechanical equipment, etc. Problems such as construction quality and economic constraints, to achieve the effect of preventing ground subsidence and protecting safety
Inactive Publication Date: 2019-06-25
SHAOXING KEQIAO TONGYI SCI & TECH INFORMATION CONSULTING CO LTD
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Problems solved by technology
However, due to China's vast territory and complex geological conditions, the construction quality and economy of buried pipes are greatly restricted.
Especially for pond muck strata in southern coastal areas, the construction of ground-source heat pump horizontal pipes with buried pipes is greatly restricted
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[0011] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0012] Such as Figure 1 ~ Figure 3 As shown, a horizontal pipe construction method of buried pipe ground source heat pump based on the pond dregs stratum, according to the design requirements of the outdoor ground, the design relative elevation of the outdoor ground is -0.4m, the relative elevation of the current ground is -1.2m, and the thickness of the pond dregs layer is About 2.6m, the bottom elevation of the pond dregs is -3.8m, the design buried depth of the horizontal pipe is 2m below the ground, and the elevation of the center of the horizontal pipe is -2.4m. When the buried pipe is constructed, a large area of the pond dregs layer with a depth of 1.2m is firstly carried out Excavation, that is, excavation at the center elevation of the horizontal pipe, the horizontal pipe includes a horizontal...
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The invention discloses a construction method of a horizontal pipe of a buried-pipe ground source heat pump based on a pond residue stratum. The designed relative elevation of outdoor ground is -0.4 m, the ground relative elevation is -1.2 m, the thickness of a pond residue layer is about 2.6 m, the bottom elevation of pond residue is -3.8 m, the designed buried depth of the horizontal pipe is 2 mbelow the ground, the center elevation of the horizontal pipe is -2.4 m, firstly, the pond residue layer with the depth being 1.2 m is excavated in large area firstly, then the buried pipe drilling positioning is conducted for pre-tripping of a 2 m of casing pipe, then a vertical pipe is constructed through a drilling rig, after the vertical pipe is constructed, a horizontal ditch with the depthbeing 0.6 m, the slope settling proportion being 1:1 and the bottom width being 1 m is excavated firstly, backfilling of plastic cohesive soil with the thickness being 0.4 m is conducted, backfillingof yellow sand with the thickness being 0.4 m is conducted, then the horizontal pipe is constructed and placed in the middle of the yellow sand, and the upper part of the yellow sand is covered with the plastic cohesive soil with the thickness being 0.4 m and wrapped with geotechnical cloth. According to the construction method, the safety of the horizontal pipe is protected, the certain bearing force is ensured, and ground subsidence is prevented.
Description
technical field [0001] The invention relates to a ground source heat pump buried pipe construction method, in particular to a buried pipe ground source heat pump horizontal pipe construction method based on pond muck formation. Background technique [0002] As we all know, energy and the environment are two major problems facing mankind in the 21st century, and China, which is in a stage of rapid development, has particularly prominent problems. In order to solve this problem, energy-saving and environment-friendly ground source heat pump systems have been gradually promoted in China. Among them, ground source heat pump systems with buried pipes are one of the most widely used methods of ground source heat pump air conditioning systems. The circulating medium in the PE pipe completes heat exchange with the rock and soil layer. This method does not directly exploit groundwater, and there is no geological problem caused by pumping groundwater. However, due to China's vast ter...
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IPC IPC(8): F16L1/028
Inventor 王立明
Owner SHAOXING KEQIAO TONGYI SCI & TECH INFORMATION CONSULTING CO LTD