A kind of weak permeability soil deep foundation pit tower crane waterproof structure and construction method

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,...

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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.

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