Construction method of dry dock foundation pit and dry dock foundation pit structure

A construction method and dry dock technology, which can be applied in basic structure engineering, excavation, construction, etc., can solve the problems of foundation pit water ingress, water accumulation, and adverse effects of foundation pit, and achieve the effect of improving construction efficiency and ensuring construction quality.

Pending Publication Date: 2019-07-26
SEPCO ELECTRIC POWER CONSTR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Dry docks are generally built on the seashore, where there is abundant groundwater and rainwater. When constructing foundation pits on dry docks, water often enters the foundation pits and produces accu

Method used

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  • Construction method of dry dock foundation pit and dry dock foundation pit structure
  • Construction method of dry dock foundation pit and dry dock foundation pit structure
  • Construction method of dry dock foundation pit and dry dock foundation pit structure

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Dry dock foundation pit construction method of the present invention comprises the following steps:

[0028] A. Build the anti-seepage wall 1 outside the foundation pit construction area, the anti-seepage wall 1 surrounds the foundation pit construction area, and the bottom of the anti-seepage wall 1 reaches the impermeable layer. Determine the position of the anti-seepage wall 1 according to the construction area of ​​the foundation pit, so that the distance from the anti-seepage wall 1 to the edge of the foundation pit is moderate. The anti-seepage wall 1 adopts a wall-plate type concrete continuous wall, uses a hydraulic grab bucket forming machine to grab the soil, and at the same time injects mud to protect the wall of the slot hole. After digging to the design depth, pour concrete into the slot to form a wall. The bottom of the anti-seepag...

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Abstract

The invention discloses a construction method of a dry dock foundation pit. The construction method comprises the steps that A, a cutoff wall is built outside a foundation pit construction area, wherein the cutoff wall surrounds the foundation pit construction area, and the bottom of the cutoff wall reaches an impermeable layer; a drainage ditch is dug in the surface outside the cutoff wall; a plurality of vertical dewatering wells are dug between the cutoff wall and the foundation pit construction area; the foundation pit is excavated; and a drainage cushion layer is laid at the pit bottom ofthe foundation pit, a drainage pipe is installed in the drainage cushion layer, and then a concrete layer is poured on the upper surface of the drainage cushion layer. The invention further disclosesa dry dock foundation pit structure which can be constructed by adopting the construction method. According to the construction method, rainwater, groundwater, surface water and the like can be prevented from entering the foundation pit and generating accumulated water, so that the construction is continuously and normally carried out, the construction efficiency is improved, and the constructionquality is ensured.

Description

technical field [0001] The invention relates to the technical field of dry dock construction, in particular to a dry dock foundation pit construction method and a dry dock foundation pit structure. Background technique [0002] The dry dock is a closed boat pool suitable for inspection and repair of ships out of the water. Dry docks are generally built on the seashore, where there is abundant groundwater and rainwater. During foundation pit construction on dry docks, water inflows into the foundation pit and water accumulation often occurs. Soaking in accumulated water will have adverse effects on the foundation pit and reduce the cost Construction quality; when water enters the foundation pit, a water pump is generally used to pump out the accumulated water, which affects the construction progress of the foundation pit. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a dry dock foundation pit construction metho...

Claims

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Application Information

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IPC IPC(8): E02D17/02E02D19/18E02D19/10E02D19/22
CPCE02D17/02E02D19/18E02D19/10E02D19/22
Inventor 刘建兵
Owner SEPCO ELECTRIC POWER CONSTR CORP
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