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Reclamation area complicated geological condition cast-in-situ bored pile multi-machine combined construction method

A technology of complex geological conditions and bored piles, which is applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problem that the drilling method of bored piles has a great influence, restricts the construction and development of coastal cities, and the geological conditions of reclamation areas. Complex problems such as ensuring the quality of the pile foundation hole formation, low noise and shortening the construction period

Inactive Publication Date: 2019-01-01
CHINA POWER CONSTR SOUTHERN CONSTR INVESTMENT CO LTD +2
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AI Technical Summary

Problems solved by technology

[0002] Bored piles have become the first choice for pile foundation design because of their low cost and high construction efficiency. However, bored piles are greatly affected by factors such as stratum conditions and hole formation methods.
[0003] In addition, the geological conditions in the reclamation area are complex and changeable, and it is often difficult to achieve the expected effect by using a single construction method for pile foundation construction. The research on the construction technology of bored piles has become the key to restricting the construction and development of coastal cities

Method used

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  • Reclamation area complicated geological condition cast-in-situ bored pile multi-machine combined construction method

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the drawings and embodiments:

[0037] Such as figure 1 As shown, a multi-machine combined construction method for bored piles with complex geological conditions in a reclamation area. Before construction, different construction parameters are formulated according to the geological conditions, including the height of the interconnection, the speed of the rotary drilling rig, the height of the hammer, etc., and the specific construction process as follows:

[0038] 1. Site preparation

[0039] According to the construction location, reasonably arrange the construction site, level the site, remove debris, and ram compaction.

[0040] Preferably, a temporary waste slag storage site is set between the front and rear rows of bored piles of the rotary drilling rig, and the waste slag is transported during the construction process.

[0041] Second, stake out

[0042] Determine the position of the pile hole plane....

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Abstract

The invention discloses a reclamation area complicated geological condition cast-in-situ bored pile multi-machine combined construction method in the field of construction. The method comprises the steps of field preparation, pile position lofting, embedment of protection cylinders, placement of a rotary drilling rig, rotary drilling, hole formation, hole detection, manufacturing and installationof reinforcement cages, casting of concrete and the like. The reclamation area complicated geological condition cast-in-situ bored pile multi-machine combined construction method is suitable for pilefoundation construction of such engineering as municipal administration, construction and urban rail traffic under reclamation area complicated geological conditions, adopts multiple drilling machinesfor combined construction to form holes, and achieves advanced technology, high applicability, economy, high efficiency and excellent social and economical effects.

Description

Technical field [0001] The invention relates to the field of building construction, in particular to a multi-machine combined construction method for bored piles in sea reclamation areas with complex geological conditions. Background technique [0002] Bored piles have become the first choice for pile foundation design due to their low cost and high construction efficiency. However, bored piles are greatly affected by factors such as ground conditions and hole formation methods. [0003] In addition, the geological conditions in the reclamation area are complex and changeable, and it is often difficult to achieve the expected results with a single construction method for pile foundation construction. Research on the construction technology of bored piles has become the key to restricting the development of coastal cities. [0004] The above-mentioned defects are worth solving. Summary of the invention [0005] In order to overcome the shortcomings of the existing technology, the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38E02D5/66
CPCE02D5/38E02D5/665
Inventor 米清文刘永波石潇雅陈天平孔令森张政杜永军杨林林邓林洋黄鹏
Owner CHINA POWER CONSTR SOUTHERN CONSTR INVESTMENT CO LTD
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