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Construction method for impact holing of filling pile in tidal environment

A technology of impact hole forming and cast-in-place pile, which is applied to sheet pile walls, foundation structure engineering, construction, etc., which can solve problems such as low efficiency, slow construction speed, and difficulty in ensuring construction quality, so as to improve the process, increase efficiency, and shorten construction The effect of duration

Active Publication Date: 2014-01-22
浙江钱塘江水利建筑工程有限公司
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AI Technical Summary

Problems solved by technology

In the tidal environment, the traditional construction drilling technology used in the construction of spur dikes mostly adopts methods such as following pipes and punching to form holes. There are problems such as slow construction speed, low efficiency, and difficulty in ensuring construction quality, which cannot well meet the needs of the project. have various limitations

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  • Construction method for impact holing of filling pile in tidal environment
  • Construction method for impact holing of filling pile in tidal environment
  • Construction method for impact holing of filling pile in tidal environment

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Embodiment Construction

[0018] The tidal environment impact hole-forming cast-in-situ pile construction method of the present invention comprises the following steps:

[0019] (a) Preparatory work: Construction personnel grasp the design intent and prepare for construction. Construction preparation includes familiarization with relevant technical design materials, construction drawings and technical standards and specifications for DTH hammer eccentric follower pipe drilling, etc. Before construction, relevant technical personnel shall investigate the hydrometeorology and tide level characteristics of the project location. Determine suitable working hours based on survey reports.

[0020] (b) Hole center positioning: The surveyor calculates the angle and sum of the survey control points to the project coordinates by using the relationship between the survey control points provided by the owner and the coordinates of the project based on the detailed observation and analysis of the drawings and the f...

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Abstract

The invention discloses a construction method for impact holing of filling piles in a tidal environment. The construction method for impact holing of the filling piles in the tidal environment comprises the following steps of (a) construction preparation, (b) hole center positioning, (c) drilling machine arrangement, (d) filling pile holing, (e) perpetual steel protective casing wall protection, (f) drilling acceptance inspection, (g) steel bar manufacture and arrangement, (h) filling pile pouring, (i) sweeping and cleaning. Construction periods of filling pile constructions at the Qiantang River with a thick underwater dimension stone layer, spur dikes with thick inner dimension stone layers and a complex geological structure and multiple-riprapping emergency rescue sections can be shortened to a great extent, the permanent protective effect is played on pile foundations by adopting steel-wall casings, and the maintenance cost caused by dam corrosion is reduced. The length of each of drill rods and follow-up castings of a drill machine is increased by adopting an advanced down-hole hammer eccentric drilling-with-casing technology, the perpetual casing protective wall is used, the defects of hole collapse and pile breakage does not exist, a drilling process is improved, and the economic benefit and the technical effect are very considerable.

Description

technical field [0001] The invention relates to a construction method of perforated piles impacted by tidal environments. Background technique [0002] With the continuous improvement of the level of science and technology, people have better and reliable technical support for solving most of the complex formation drilling problems encountered in the field of engineering construction. Construction technicians have brought good news to the society. [0003] It has always been a difficult problem to make holes in thicker rock layers (>2m) and concrete scale in the tidal environment. The construction method of rapid impact hole-forming piles is our foundation based on the DTH hammer eccentric following pipe drilling technology. Based on this, it has a construction method with the characteristics of light equipment, fast, economical and efficient. In the tidal environment, the traditional construction drilling technology used in the construction of spur dikes mostly adopts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/40
Inventor 金南兰马炳兴邹斌方正刘学应
Owner 浙江钱塘江水利建筑工程有限公司
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