Deep foundation pit tower crane waterproof structure of weakly permeable soil and construction method

A waterproof structure and permeability technology, applied in infrastructure engineering, protection devices, buildings, etc., can solve the problems of insufficient attention to tower body protection, damage to the tower body, and impact on the safety of tower cranes.

Active Publication Date: 2019-12-13
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Protecting the tower body of the tower crane is the first condition to ensure its safe use. In a building with a basement, the foundation of the tower crane must be level with its foundation floor. After the tower crane is installed, the protection of the tower body is often not paid enough attention due to human factors. In addition, the measures are not strict enough, which directly causes groundwater and rainwater to erode the tower body, and earthwork backfilling in the basement damages the tower body, which in turn affects the safety of the tower crane.

Method used

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  • Deep foundation pit tower crane waterproof structure of weakly permeable soil and construction method
  • Deep foundation pit tower crane waterproof structure of weakly permeable soil and construction method
  • Deep foundation pit tower crane waterproof structure of weakly permeable soil and construction method

Examples

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Embodiment 1

[0028] Such as figure 1 and Figure 4 As shown, a tower crane waterproof structure of a deep foundation pit with weak permeability soil includes a foundation pit 1 and a water collection well 2. The foundation pit 1 includes a foundation pit 11 and a drainage groove 12. Inside, the bottom surface of the foundation pit 11 is provided with a 120mm concrete cushion 111, and the inner wall of the foundation pit 11 is provided with a brick membrane 112. The top surface of the brick membrane 112 is 80mm higher than the bottom of the drainage groove 12, and A waterproof layer 113 made of a waterproof coil is laid on the tire membrane 112, and the top side of the waterproof layer 113 extends outward to the outer wall of the brick tire membrane 112. Effective waterproofing on the inside. The waterproof layer 113 on the top surface of the brick tire membrane 112 is seamlessly connected with the concrete pressure plate 114, and the area between the concrete cushion 111 and the waterpro...

Embodiment 2

[0032] Such as figure 2 and image 3 As shown, the drainage pipe 123 is fixedly connected and communicated with a pipe 4, the branch pipe 4 is a U-shaped structure, and the free end of the branch pipe 4 is provided with a filter 5 for filtering sand and gravel to prevent clogging and causing water accumulation in the drainage ditch 12 , while preventing the foul smell in the water collection well 2 from polluting the drainage ditch 12 and the surrounding environment.

[0033] Further, the branch pipe 4 is provided with an anti-backflow structure for protecting the water in the sump 2 from flowing back into the drainage groove 12. The anti-backflow structure includes a fixed disc 6, a flow blocking member 7, a limiting member 8 and a buoyancy member 9 , the fixed disk 6 is fixedly connected to the inner wall of the branch pipe 4, the flow blocking piece 7 is connected to the lower surface of the fixed disk 6 through a spring, the flow blocking piece 7 has a conical structure,...

Embodiment 3

[0035] Such as Figure 1 to Figure 4 As shown, the present invention also discloses a construction method for a tower crane waterproof structure of a deep foundation pit with weakly permeable soil, comprising the following steps:

[0036] Step 1. Clean up the ground garbage and excavate the foundation pit 11 and drainage trench 12 according to the construction requirements, pour a 120mm concrete cushion 111 on the bottom of the foundation pit 11, and build brick tires on the inner wall of the foundation pit 11 film 112;

[0037] Step 2: A waterproof layer 113 is provided on the inner wall of the brick tire membrane 112, and the waterproof layer 113 is folded to the outer wall of the brick tire membrane 112, and is seamless on the waterproof layer 113 on the top surface of the brick tire membrane 112 Connect a concrete pressure plate 114;

[0038] Step 3: Pour concrete in the area between the concrete cushion 111 and the first waterproof layer 113 to form a tower crane abutment...

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Abstract

The invention discloses a deep foundation pit tower crane waterproof structure of weakly permeable soil and a construction method, and belongs to the technical field of tower crane foundation waterproof structures. The deep foundation pit tower crane waterproof structure comprises a foundation pit and a water collecting well, wherein the foundation pit comprises a foundation pit slot and a drainage groove, the foundation pit slot is located in the drainage groove, a concrete cushion is arranged on the bottom surface of the foundation pit slot, a brick membrane is arranged on the inner wall ofthe foundation pit slot, a waterproof layer I is arranged on the brick membrane, the top side of the waterproof layer I extends to the outer wall of the brick membrane, a concrete pressing plate is seamlessly connected to the waterproof layer I located on the top surface of the brick membrane, a tower crane base station to the interior of the drainage groove is arranged in an area between the concrete cushion and the waterproof layer I, a concrete foundation layer is arranged in the drainage groove, a waterproof layer II is arranged on the surfaces of the concrete foundation layer and the tower crane base station, the waterproof layer II is fixedly connected with the waterproof layer I located on the outer wall of the brick membrane, a drainage pipe which communicates with the water collecting well is arranged on the waterproof layer II, and a crushed stone layer is arranged above the drainage pipe. The deep foundation pit tower crane waterproof structure is a tower body protecting structure which has the advantages of simplicity, convenience, effectiveness, firmness, durability and long waterproof effect.

Description

technical field [0001] The invention belongs to the technical field of tower crane foundation waterproof structures, and in particular relates to a tower crane waterproof structure and a construction method for deep foundation pits with weakly permeable soil. Background technique [0002] At present, with the development of the macro-economy, people have higher and higher requirements for living and office conditions and the environment, and there are more and more high-rise buildings in commercial buildings and residential buildings. Level basement. In high-rise buildings with basements, building materials are transported vertically by tower cranes, which not only speeds up the project progress, saves man-hours, but also facilitates installation. It is particularly important to ensure the safety of the tower crane during installation and use. [0003] Protecting the tower body of the tower crane is the first condition to ensure its safe use. In a building with a basement,...

Claims

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Application Information

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IPC IPC(8): E02D31/02E02D27/42E02D27/44
CPCE02D27/42E02D27/44E02D31/02
Inventor 张勋来
Owner CHINA MCC17 GRP
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