Construction method of an environmentally friendly assembled post-grouting steel cylinder pile foundation
A construction method and prefabricated technology, applied in infrastructure engineering, construction, etc., can solve the problems of low degree of construction mechanization, high work intensity and high risk, and achieve the effects of reducing soil erosion, facilitating construction operations and simple procedures.
Active Publication Date: 2018-08-10
STATE GRID HUNAN ELECTRIC POWER +3
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Problems solved by technology
[0002] At present, the construction of high-voltage transmission lines in my country is still in the state of manpower-based, machinery-assisted, and the degree of mechanization of construction is low.
The construction equipment is simple, the personnel work intensity is high, the efficiency is low, and the risk is high
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as Figure 1-Figure 5 As shown, the environment-friendly assembled post-grouting steel cylinder pile foundation provided by the present invention includes a pile cylinder 1, and the pile cylinder 1 is sequentially assembled by 6 sections of pipe joints; There are a number of stiffening plates 8 to increase the strength of the pile barrel and improve the bearing capacity; each adjacent pipe section is fixed by screwing the flanges 5 welded at both ends; the pile barrel 1 is buried in the foundation pit, and the pile barrel 1 top The surface is basically flush with the opening of the foundation pit; the periphery is poured with concrete or cement mortar 2, and the interior is filled with soil 3. The upper end is provided with a pyramid bracket 7 connected with the pole tower leg, and the bottom end is provided with a bracket anchored ...
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The invention discloses an environment-friendly assembling type post-grouting steel cylinder pile foundation. The environment-friendly assembling type post-grouting steel cylinder pile foundation comprises a pile cylinder formed by sequentially splicing a plurality of pipe joints in the axial direction. The pile cylinder is embedded in a foundation pit, concrete or cement mortar is poured to the periphery of the pile cylinder, the pile cylinder is filled with spoil, connecting pieces connected with tower legs are arranged at the upper end of the pile cylinder, and anchor rods anchored to the bottom of the foundation pit are arranged at the bottom end of the pile cylinder. The invention further discloses a construction method of the environment-friendly assembling type post-grouting steel cylinder pile foundation. The method comprises the following steps that the foundation pit is excavated through manual work or a machine; the pile bottom anchor rods are constructed, the pipe joints are spliced to form the pile cylinder, and the connecting pieces connected with the tower legs are arranged at the upper end of the pile cylinder; the concrete or the cement mortar is poured to the part between the side wall of the foundation pit and the pile cylinder; and a hollow part of the steel cylinder pile is backfilled with soil. According to the environment-friendly assembling type post-grouting steel cylinder pile foundation and the construction method thereof, procedures are simple, construction operation is convenient, factory modular production can be achieved, manufacturing is easy and convenient, and the machining precision is high; and assembling is convenient, the economic benefits and social benefits are obvious, and high popularization value is achieved.
Description
technical field [0001] The invention relates to the technical field of electric power design, in particular to an environment-friendly assembled post-grouting steel cylinder pile foundation and a construction method thereof. Background technique [0002] At present, the construction of high-voltage transmission lines in my country is still in the state of manpower-based, machinery-assisted, and the degree of construction mechanization is low. The construction equipment is simple, and the personnel work intensity is high, the efficiency is low, and the risk is high. With the rapid economic and social development, front-line construction personnel are in short supply, labor costs continue to increase, and manpower-intensive construction methods are unsustainable. With the development of transmission line design, the research on the whole process of mechanized construction is becoming more and more important. In response to the State Grid Corporation's "two types and three new...
Claims
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IPC IPC(8): E02D27/44E02D27/42
CPCE02D27/42E02D27/44
Inventor 周鲲陈霖华梅志凌程育林徐满华
Owner STATE GRID HUNAN ELECTRIC POWER