Integration method of lagging pile and dewatering well for foundation ditch support

A foundation pit support and retaining pile technology, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of multiple processes, long construction period, and high cost, and achieve the effects of cost reduction, short construction period, and low cost

Inactive Publication Date: 2008-04-16
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for combining the retaining pile and the dewatering well, to solve the shortcomings of high cost, many procedures, and long constructio

Method used

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  • Integration method of lagging pile and dewatering well for foundation ditch support
  • Integration method of lagging pile and dewatering well for foundation ditch support
  • Integration method of lagging pile and dewatering well for foundation ditch support

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Example Embodiment

[0014] The specific implementation manner of the present invention will be described in detail below in combination with the technical scheme and accompanying drawings.

[0015] The present invention integrates the retaining pile and the dewatering well, and its schematic diagram is shown in Figures 1 to 4, and its specific implementation steps are as follows:

[0016] step one

[0017] Excavate according to the designed hole diameter to 200mm ~ 1000mm below the design depth of the pile bottom, and put gravel to the design depth of the pile bottom;

[0018] step two

[0019] Connect the sleeve with the annular sealing device; the diameter of the sleeve is the diameter of the dewatering well; the diameter of the outer ring of the annular sealing device is equivalent to the diameter of the hole, and the diameter of the inner ring is equal to the diameter of the sleeve; then the sleeve and the annular sealing device put into the hole together, and position;

[0020] Step 3 Bin...

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Abstract

The invention belongs to the groundstill foundation work technical field and relates to a method integrating retaining piles and a dewatering well in the supporting system with piled anchors. The technical proposal of the invention mainly comprises the following three parts: the first part is mainly about drilling holes and putting gravel (1) to the bottom of the holes; the second part is mainly about a sleeve and an annular sealing structure, with the annular seal structure connected with the bottom of the sleeve and put into the hole together with the sleeve; the third part is about the reinforced concrete (6) between the sleeve and the wall of the hole and is the strained part. The invention has the advantages of a safe and reliable supporting system, low manufacturing cost and short working period. Because the retaining piles and the dewatering well are constructed at the same time, the construction procedures are reduced, a large amount of construction material is saved, thereby reducing the construction cost greatly and shortening the construction period.

Description

technical field [0001] The invention belongs to the technical field of foundation engineering, and relates to a deep foundation pit engineering constructed with a pile-anchor support system, in particular to a method for integrating wall protection piles and dewatering wells. Background technique [0002] At present, in the deep foundation pit engineering that adopts the pile-anchor support system construction, the retaining wall pile and the dewatering well are constructed separately. Wall protection piles and dewatering wells will be dug holes respectively like this, and workload is bigger, and must use more building materials, and corresponding cost is also high. Contents of the invention [0003] The purpose of the present invention is to provide a method for combining the retaining pile and the dewatering well, to solve the shortcomings of high cost, many procedures, and long construction period in the separate construction of the retaining pile and the dewatering wel...

Claims

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Application Information

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IPC IPC(8): E02D5/38E02D19/10
Inventor 贾金青陈国周闫长旺郑卫锋
Owner DALIAN UNIV OF TECH
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