Raft foundation building uplift reinforcement structure and method in corrosive geological environment

Abstract

The invention discloses a raft foundation building uplift and reinforcement structure and method in a corrosive geological environment. The uplift and reinforcement structure includes an existing building lower column, a raft foundation connected to the bottom of the column, and a composite foundation connected below the raft foundation The reinforced layer, the composite pile foundation connected under the reinforced layer of the composite foundation, and the water-stop curtain connected to the periphery of the raft foundation. During construction, by setting up the water-stop curtain, it is beneficial to block the water in the aquifer and prevent the outflow of slurry and in-situ water and soil. The inverted L-shaped design of the water-stop curtain can further avoid the further corrosion of the raft foundation and ensure the lateral Displacement limitation; through the setting of composite foundation strengthening layer and composite pile foundation, it is beneficial to locally lift the raft foundation and overall reinforcement, and improve the overall bearing capacity in combination with water-stop curtains; through the setting of groundwater monitoring holes, it is convenient for on-site monitoring during construction The level of groundwater level is conducive to maintaining the stability of water and soil pressure in the underground environment.

Description

Technical field [0001] The present invention belongs to the construction of construction lifting and reinforcement construction, and in particular, the present invention relates to a rising reinforcement structure and method of raft basic building under corrosive geological environments. Background technique [0002] The foundation foundation in the construction construction is widely used in the soil and integrated integrity of the generous force, which can be adapted to the bearing capacity. With the construction of high-rise buildings or ultra-high-rise buildings, the building conditions of building on the site are also required. In the past, it was built on the building of the richestant flourishing rock layer, which has a long-time flow groundwater or a rich in water or a low-water, and the original construction is relatively related to the reasons such as water and soil, soil loss and foundation bearing capacity. The raft foundation on the soft soil layer appears overall se...

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Problems solved by technology

[0004] The present invention provides a lifting reinforcement structure and method for a raft foundation building in a corrosive geological environment, which is used to solve the problem of setting up the lifting reinforcement structure when there is an aquifer in the raft foundation building in a highly corrosive and strongly weathered rock layer and a strong weathered mudstone layer. Technical issues such as grouting, monitoring and water level control of uplifted and reinforced structures, and construction of uplifted and reinforced structures in various parts

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