Comprehensive construction method for soft land area

Abstract

The invention relates to the technical field of building engineering, and discloses a comprehensive construction method for a soft soil area. The comprehensive construction method relates to a soft foundation, and comprises the following specific steps of (1) pre-pressing the soft foundation; and (2) starting pile foundation construction after a soil layer is consolidated and stable, a series of engineering problems such as foundation reinforcement, foundation pit support, pile foundation construction, as well as bearing platform and base groove excavation can be solved at a time, and a good engineering effect is achieved; after the foundation is pre-pressed, a relatively hard shell layer is formed on the upper portion of the site, so that pipe pile foundation construction and quality guarantee are very favorable; on one hand, a stable construction operation surface is provided with respect to the hard shell layer, and smooth construction of a static pressure pipe pile is facilitated;and on the other hand, enough bearing force and lateral limit are provided with respect to the hard shell layer, and the pipe pile is prevented from being affected by surroundings and therefore deviating, inclining and even breaking.

Description

technical field [0001] The patent of the present invention relates to the technical field of construction engineering, in particular, to a comprehensive construction method in soft soil areas. Background technique [0002] With the development of the economy and the acceleration of urbanization, in cities where land is increasingly tight, it has become inevitable to develop underground space in combination with urban construction and renovation, such as multi-storey basements of high-rise buildings, subways, underground passages, underground parking garages, and underground shopping malls. , underground substations, underground warehouses, underground residential construction and a variety of underground civil and public facilities, etc., in the development and utilization of underground space, deep foundation pit engineering has become an indispensable project; often encountered in the construction of deep foundation pits To the weak foundation, because the weak foundation ...

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Problems solved by technology

[0003] In the prior art, various supports are used to support the foundation pit first, then the earthwork is excavated to the bottom of the foundation pit, and the bottom of the pit is replaced and filled, then the pile foundation construction is carried out, and then the cap, core tube support and excavation are carried out. , this construction method is to divide the project into independent sub-projects one by one. In actual projects, it is easy to cause accidents such as local instability of the foundation pit, deviation of pipe piles, and broken piles.

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