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Frost heaving resisting device and construction method thereof

A freeze-pulling and square-shaped technology, applied in infrastructure engineering, construction, etc., can solve the problems of high construction cost, insufficient anti-freeze-pulling ability, long construction period of anti-freeze-pulling foundation, etc. Assemble quick and easy effects

Active Publication Date: 2019-06-28
国网内蒙古东部电力有限公司经济技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide an anti-freezing and pulling device and its construction method, to solve the technical problems of long construction period, high construction cost and insufficient anti-freezing and pulling capacity of the power line pole anti-freezing and pulling foundation

Method used

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  • Frost heaving resisting device and construction method thereof
  • Frost heaving resisting device and construction method thereof
  • Frost heaving resisting device and construction method thereof

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and further illustrate technical scheme of the present invention by specific embodiment:

[0031] Chassis 8, the chassis is a round steel plate, which is placed horizontally at the bottom of the borehole. The diameter of the chassis should be smaller than the diameter of the push pin plate when it is in the open state, and the thickness of the chassis is generally not less than 30mm to ensure that the chassis has a certain quality, so that the whole device can be stabilized, and the foundation screw can be righted to make the main body of the device in a vertical state .

[0032] Thrust bearing 7, the thrust bearing is a cast boss circular seat bearing, which is connected to the chassis by bolts, and it is interference-jointed with the unthreaded part of the lower part of the screw rod, so that the screw rod forms a whole with the chassis under the action of the thrust bearing, The thrust bearing can play a role in limitin...

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Abstract

Provided are a frost heaving resisting device and a construction method thereof. The device comprises a chassis, a screw rod, a thrust bearing, a hexagon nut, a pushing needle plate, a chain rod, a butt joint rod and an inserting rod. The chain rod is an iron chain rod, and is hinged to a force bearing point of the nut and a force bearing point of the pushing needle plate. The butt joint rod is aniron rod, and is in butt joint with the upper portion of the screw rod through a mortise and tenon structure. The inserting rod is an iron rod, and is inserted into a round hole preserved in the upper portion of the butt joint rod to serve as a force arm to rotate the screw rod. All the parts of the device can be prefabricated, and can be fast assembled on site. According to the construction method, a gasoline portable drill is adopted for drilling a hole in advance, the device is overall placed in the drilled hole, and pushing force for the pushing needle plate is generated through the spiraling of the screw rod, so the pushing needle plate is stuck into the a hole side wall soil body. According to the frost heaving resisting device and the construction method thereof, the construction difficulty of a frost heaving resisting measure, the construction period is shortened, the comprehensive building cost is reduced, and the basic tensile capacity is improved.

Description

technical field [0001] The invention belongs to the field of civil construction, and in particular relates to an anti-freezing and pulling out device and a construction method thereof. Background technique [0002] In permafrost regions and seasonally frozen regions in Northeast China, serious freeze-and-pull damages will occur after experiencing freeze-thaw cycles every year. The foundations of some power poles have insufficient pull-out resistance, resulting in serious tilting and even collapse of the poles. It takes a lot of manpower and material resources to straighten and strengthen the pole, and the annual maintenance cost is relatively high. In response to this phenomenon, if reasonable anti-freezing and pulling measures are chosen, the freezing and pulling damage of the utility pole can be greatly reduced. For the improvement of the freezing and pulling damage of the utility pole, it is necessary to start in the direction of the freezing and pulling resistance of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E02D27/35
Inventor 徐湘田刘庆贺王永涛黄文斌范彩霞
Owner 国网内蒙古东部电力有限公司经济技术研究院
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