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Obstacle removing construction method for invasion of confined water dock into foundation pit area

A construction method and technology of confined water, which is applied in the direction of foundation structure engineering, excavation, filling, etc., can solve the problems that affect the smooth progress of foundation pit engineering, the inrush of old piles with confined water, and prolong the construction period, so as to improve the stability Enhanced performance and convenience, improved reinforcement, improved stability and load-bearing capacity

Pending Publication Date: 2022-03-01
CCCC FOURTH HIGHWAY ENG
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  • Claims
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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that if there is a confined water layer in the foundation pit area, it needs to be backfilled in time after removing the old piles. The method in the technology removes the old piles in the confined water layer area, which not only increases the construction risk, but also prolongs the construction period, which affects the smooth progress of the foundation pit project

Method used

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  • Obstacle removing construction method for invasion of confined water dock into foundation pit area
  • Obstacle removing construction method for invasion of confined water dock into foundation pit area
  • Obstacle removing construction method for invasion of confined water dock into foundation pit area

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Embodiment Construction

[0040] The following is attached Figure 1-6 The application is described in further detail.

[0041] The embodiment of the present application discloses a construction method for clearing obstacles in a pressurized water dock intruding into a foundation pit area. refer to figure 1 , figure 1 It is the overall structure diagram of the dock in the embodiment of the present application. The dock generally includes a dock floor 1, a dock wall structure 2 located on both sides of the dock floor 1, and a pile foundation 3 located under the ground 9 of the dock floor 1 and the dock wall structure 2; The pile foundation 3 under the ground 9 of the dock floor 1 is generally a rectangular pile 30 , and the pile foundation 3 under the ground 9 of the dock wall structure 2 is generally a square pile 31 and a steel sheet pile 32 . The construction area is located at the dock floor 1 and the dock wall structure 2, and the pile foundation 3 that is an obstacle caused by the construction ...

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Abstract

The invention relates to an obstacle removing construction method for a confined water dock invading a foundation pit area. The method comprises the following steps that S1, a blocking wall is constructed; a blocking wall is arranged, and an obstacle clearing range is defined; s2, a dock bottom plate is dismantled; except the dock bottom plate, collecting position coordinates of old pile foundations at the lower part of the dock bottom plate; s3, earthwork backfilling; after broken concrete blocks in the broken area of the dock bottom plate are completely cleaned, earthwork backfilling is conducted, and the cast-in-place piles and the timber piles in the enclosure construction area are cleaned; s4, the dock wall structure is removed; s5, the pile foundation is cleaned, and the steel sheet piles influencing construction of the pile foundation enclosure body are pulled out; and the old pile foundation locally affecting uplift pile construction is removed according to the old pile foundation coordinates collected in the step S2. The construction method has the advantages that the construction safety is improved, the risk of confined water inrush caused by direct construction on the tungsten chamber bottom plate is reduced, and smooth proceeding of foundation pit engineering is guaranteed.

Description

technical field [0001] The present application relates to the technical field of barrier-removing construction in a foundation pit area on a pressurized water, in particular to a construction method for clearing an area of ​​a foundation pit intruded by a pressurized water dock. Background technique [0002] At present, when constructing within the scope of the foundation pit area, sometimes there are existing pile foundations underground. At this time, if the foundation pit enclosure structure is to be built, the old piles that have construction obstacles underground must be removed. [0003] In the related art, generally, the old piles are pulled out first, and then the construction of a new foundation pit enclosure structure is carried out. [0004] In view of the related technologies mentioned above, the inventor believes that if there is a confined water layer in the foundation pit area, it needs to be backfilled in time after removing the old piles. The method in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D17/18E02D9/00E02D9/02
CPCE02D17/04E02D17/18E02D9/00E02D9/02
Inventor 郁志伟张克胜孙志国李礼强翟浩博宋卓华高睿
Owner CCCC FOURTH HIGHWAY ENG
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