Concrete pouring process suitable for offshore building construction

A technology of concrete and buildings, which is applied in construction, infrastructure engineering, etc., can solve undisclosed problems, achieve the effects of reducing investment costs, wide application range, and controlling investment costs

Inactive Publication Date: 2019-06-21
SANMEN NUCLEAR POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent only discloses the structure of the nuclear power platform after pouring, but does not disclose the method of pouring

Method used

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  • Concrete pouring process suitable for offshore building construction
  • Concrete pouring process suitable for offshore building construction
  • Concrete pouring process suitable for offshore building construction

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[0043] For the convenience of pouring, the silo is designed as a self-made conical silo. The volume of the silo is slightly larger than half of the volume of a single mixer truck, and the general volume is 3.5 cubic meters. It is convenient for vehicle dispatching, while avoiding concrete splashing during hoisting. And the loading of a single silo should not be more than 3 cubic meters, so as to ensure the safety control factor during hoisting. The height of the silo should be less than the height of the outlet of the concrete mixer truck, generally 1.5 meters high. Such as figure 2 , the bottom of the silo 1 has a cylindrical structure and a discharge port 2 that can be rotated and opened. In one embodiment, the feeding opening is opened by rotation relative to the silo; in another embodiment, the cylindrical structure includes an upper cylinder and a lower cylinder, and the lower cylinder is rotatable to open relative to the upper cylinder. In addition, the top of the sil...

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Abstract

The invention discloses a concrete pouring process for offshore building construction, and belongs to the technical field of building construction. The process comprises the following steps: stirring:stirring concrete raw materials in a stirring station, and conducting mixing for T1 time; loading: loading the mixed concrete into a mixer truck from a mixing station, and transporting the mixed concrete to a wharf after T2 time; ship loading: unloading the concrete into a wharf stock bin, hoisting the stock bin with the concrete into a transport ship by a lorry-mounted crane, and enabling the transport ship to lean against a marine pouring place after time T3; pouring: hoisting the stock bin with the concrete by a hoisting ship at an offshore pouring site for T4 time to complete concrete pouring of a single transport ship; and returning of the stock bin: putting the empty stock bin back to the transport ship through the hoisting ship, and returning the empty stock bin to the wharf through the transport ship after T5 time so as to prepare for next concrete pouring until pouring is completed, wherein the pouring time T<J>=T<1>+T<2>+T<3>+2*T<4>+T<5>, T<J> is less than the sum of T<C> and T<y>, T<C> is the initial setting time of concrete, and T<y> is the safety margin time. The investment cost is greatly reduced, and the economic benefit is increased.

Description

technical field [0001] The invention belongs to the technical field of construction of buildings and structures, and in particular relates to a concrete pouring process suitable for the construction of structures on the sea. Background technique [0002] During the construction of the AP1000 nuclear power plant, warning piers need to be built on the sea. The warning piers involve concrete pouring, and the pouring site is 300 meters to 500 meters away from the shore. For the pouring construction of such offshore structures, the domestic conventional construction method is: use professional Concrete mixer ship, the whole process from concrete raw material storage, mixing to distributing is completed on board. The advantage of this method is that the construction period is short, and the disadvantage is that the initial investment is large and the number of available equipment in the domestic market is short. Due to the relatively high entry and exit fees and shift fees for pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/02E02D15/06
Inventor 曾庆政李凡程兴龙刘贵荣黄宁杨振业
Owner SANMEN NUCLEAR POWER CO LTD
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