Construction method of ikebana socket water stop curtain for dual spindle soil-cement stirring mill

A technology for a cement-soil mixer and a cement-soil mixing pile, which is applied in the directions of infrastructure engineering, construction, sheet pile walls, etc., can solve problems such as split ends, and achieve the effects of ensuring safety, saving project costs, and saving construction sites.

Inactive Publication Date: 2009-01-07
江苏华东建设基础工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of splits between two columnar consolidation bodies produced during the construction of water-stop curtains by existing twin-shaft cement-soil mixers, thereby providing a water-stop with flower-arranged sockets for twin-shaft cement-soil mixers The curtain construction method improves the anti-seepage function of the water-stop curtain and ensures the safety of foundation pit construction and surrounding buildings

Method used

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  • Construction method of ikebana socket water stop curtain for dual spindle soil-cement stirring mill
  • Construction method of ikebana socket water stop curtain for dual spindle soil-cement stirring mill
  • Construction method of ikebana socket water stop curtain for dual spindle soil-cement stirring mill

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Embodiment 1

[0031] The basement pit of a project on Zhongshan Road, Nanjing City, Jiangsu Province is 6m deep, and the four sides of the pit are 160m long. From the ground to 4m below the ground is silty clay, below 4m is silt, and 1.5m below the ground is groundwater. In order to prevent the groundwater outside the foundation pit from flowing into the foundation pit and ensure the safety of the foundation pit construction and the buildings around the foundation pit, it is necessary to set up a water-stop curtain around the foundation pit. Since the foundation pit is located in the center of the city, the construction site is limited. At the same time, in order to save the project cost, a single row of water-stop curtain is designed on the periphery of the foundation pit. The design pile bottom depth of the cement-soil mixing pile 1 is 12m, and the design pile top depth is the ground. Then a construction method of double-axis cement-soil mixer flower arrangement socketed water-stop curtai...

Embodiment 2

[0048] The basement pit of a project on Zhujiang Road, Nanjing City, Jiangsu Province is 10m deep, and the four sides of the pit are 180m long. The ground to 4m below the ground is clay, 4m to 7.5m below the ground is sandy, 7.5m below is silt, and 1.3m below the ground is groundwater. In order to prevent the groundwater outside the foundation pit from flowing into the foundation pit and ensure the safety of the foundation pit construction and the buildings around the foundation pit, it is necessary to set up a water-stop curtain around the foundation pit. Since the foundation pit is located in the center of the city, the construction site is limited. At the same time, in order to save the project cost, a single row of water-stop curtain is designed on the periphery of the foundation pit. The depth of the pile bottom of the cement-soil mixing pile 1 is 16m, and the depth of the pile top is designed to be the ground. Then a construction method of a double-axis cement-soil mixer...

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Abstract

The invention relates to a construction method for a water-seal curtain being crosswise sleeved on a biaxial soil cement agitator. The construction method comprises the following steps: first step, a field is leveled; second step, a biaxial soil cement agitator is positioned; third step, agitation is performed for the first time and an agitator head is descended to the depth of a pile; fourth step, agitation is performed for the second time and the agitator head is ascended to the top of the pile; fifth step, agitation is performed for the third time and the agitator head is descended, and the third step is repeated; sixth step, agitation is performed for the fourth time and the agitator head is ascended, and the fourth step is repeated to form a first columnar induration; seventh step, a mortar feeding tube is cleaned; eighth step, the agitator is advanced for two pile positions; ninth step, the third, the fourth, the fifth and the sixth steps are repeated to form a second columnar induration; tenth step, the seventh step is repeated; eleventh step, the mortar is dropped back for a pile position, then the third and the fourth steps are repeated, crosswise sleeve joint is performed to the two columnar indurations, and a branching between the two columnar indurations is eliminated; twelfth step, the seventh step is repeated; thirteenth step, the agitator is advanced for three pile positions, then the fourth, the fifth and the sixth steps are repeated, and the construction of a fourth columnar induration is carried out; fourteenth step, the tenth, the eleventh, the twelfth and the thirteenth steps are repeated in sequence, and non-branching water-seal curtain is continually accomplished. The method greatly enhances the integrity and the barrier property of the water-seal curtain, saves space, and saves the construction cost.

Description

technical field [0001] The invention relates to a method for setting a water-stop curtain on the periphery of a foundation pit, in particular to a construction method for a water-stop curtain by using a conventional two-axis cement-soil mixer for flower arrangement socketing. Background technique [0002] In order to ensure the smooth construction of the foundation pit and the safety of surrounding buildings, water-stop curtains are usually arranged around the foundation pit to prevent groundwater outside the foundation pit from flowing into the foundation pit. The water-stop curtain is connected by cement-soil mixing piles formed by mixing cement slurry and soil. At present, the cement-soil mixers used in the construction of cement-soil mixing piles are mostly double-shaft cement-soil mixers. The two cement-soil mixing piles formed by the construction form a columnar consolidation body. In order to prevent the water outside the foundation pit from flowing into the foundatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/12E02D19/18E02D5/34
Inventor 刘鑫泉刘祖春丁金海丁晓红李玉成赵翔周忠民蔡其红
Owner 江苏华东建设基础工程有限公司
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