Construction method for pre-stress tubular pile containing deep boulders and pile foundation structure thereof

A technology of prestressed pipe piles and construction methods, which is applied in foundation structure engineering, foundation structure tests, sheet pile walls, etc., can solve the problems that the quality of pile foundation construction is difficult to be guaranteed, and piles cannot be formed, so as to achieve economic benefits and social benefits. Significant effect, guaranteed quality, improved bearing capacity and stability

Pending Publication Date: 2020-03-24
广州珠江建设发展有限公司
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Problems solved by technology

[0003] However, in the process of sinking prestressed pipe piles, if limestone, upper soft and lower hard composite soil layers containing boulders and other geological conditions are encountered, it is easy to have partial piles, broken piles or piles that cannot be piled. hard to guarantee

Method used

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  • Construction method for pre-stress tubular pile containing deep boulders and pile foundation structure thereof
  • Construction method for pre-stress tubular pile containing deep boulders and pile foundation structure thereof
  • Construction method for pre-stress tubular pile containing deep boulders and pile foundation structure thereof

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Embodiment Construction

[0032] A kind of construction method of the prestressed pipe pile pile foundation structure that contains deep boulders in this embodiment, please refer to figure 1 , including the following steps,

[0033] Step 1: Perform micro-motion array detection on the range of each pile position in the foundation interval, obtain micro-motion signals, evaluate and screen the signals, and form a micro-motion detection result map;

[0034] Step 2: Analyze the micro-motion detection result map, and use the judgment criterion to determine the distribution range of boulder groups within the interval;

[0035] Step 3: According to the distribution range of the boulder group shown in the micro-motion detection and exploration situation map, combined with the position of the pipe pile on the design drawing, conduct "one-by-one survey" geological exploration drilling; when boulders are found, perform multi-hole drilling to analyze the boulders the size and shape of the stone;

[0036] Step 4: ...

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Abstract

The invention relates to a construction method for a pre-stress tubular pile containing deep boulders and a pile foundation structure thereof. According to the construction method for the pre-stress tubular pile containing the deep boulders and the pile foundation structure thereof, each pile position range is subjected to boulder detection in advance, the boulders are classified according to thedistribution, shape and buried depth, and different solutions are formed according to different types of the boulders, so that the influence on the foundation stress of a project caused by geology with the hard boulders which are distributed unevenly and irregularly is effectively reduced; the final pile quality of the pre-stress tubular pile is ensured; and the construction method disclosed by the invention is high in speed, low in noises, low in vibration, high in quality, low in cost, and remarkable in economic benefit and social effect, has important reference significance to similar projects, and is worthy spreading and applying widely.

Description

technical field [0001] The invention relates to building construction technology, in particular to a construction method of a prestressed pipe pile foundation structure containing deep boulders. Background technique [0002] In construction, prestressed pipe piles are generally placed under the foundation corresponding to each pile position. It has the characteristics of high single pile bearing capacity, good crack resistance and bending resistance, and convenient pile detection. It has been widely used in piles of high-rise buildings. foundation project. [0003] However, in the process of sinking prestressed pipe piles, if limestone, upper soft and lower hard composite soil layers containing boulders and other geological conditions are encountered, it is easy to have partial piles, broken piles or piles that cannot be piled. Difficult to be guaranteed. Contents of the invention [0004] Based on this, the object of the present invention is to overcome the shortcomings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/58E02D27/14E02D33/00
CPCE02D5/58E02D27/14E02D33/00
Inventor 卢志瑜卜继斌廖志三黄林袁汉强黄路露吴保理
Owner 广州珠江建设发展有限公司
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