Mine goaf area water plant foundation treatment method

Abstract

The invention provides a mine goaf area water plant foundation treatment method, and relates to the technical field of special geological foundation treatment. The method comprises the following steps that S1, equipment is arranged before piling, wherein a foundation pit is excavated, and a reinforced concrete well ring is poured; S2, cylinder driving is carried out, wherein an outer ring cylinder is vertically driven into along the reinforced concrete well ring, sludge, water and miscellaneous stones located in the outer ring cylinder are cleaned, and the bottom is leveled; S3, piling is carried out, wherein a pile body with the hollow interior is vertically driven into the foundation pit; S4, pouring is carried out, wherein a reinforcement cage is hoisted in the pile body, and concrete is poured into the pile body; S5, cylinder taking is carried out, wherein after the concrete in the pile body is solidified, a cylinder taking mechanism abuts against the inner wall of the outer ring cylinder, the outer ring cylinder is taken out through traction of the cylinder taking mechanism, and repeated utilization is achieved; and S6, pile driver shifting is carried out, wherein a pile driver and the outer ring cylinder are moved to the next pile point, and the above steps are repeated. According to the method, the outer ring cylinder used for forming a good internal environment is arranged, the outer ring cylinder is taken out through the cylinder taking structure, repeated utilization is achieved, and materials are saved.

Description

technical field [0001] The invention relates to the technical field of special geological foundation treatment, in particular to a method for treating the foundation of a water plant in a mine goaf area. Background technique [0002] At present, my country's society and economy are in a stage of rapid development, and the scale of domestic construction projects continues to expand. With the emergence of a large number of high-rise and super high-rise buildings and the construction of large-scale public infrastructure, in order to ensure the basic requirements of all parties, the underground To develop and benefit from the underground, the construction of deep foundation pit engineering is becoming more and more important. At the same time, with the increase of the main structure of the building, the embedding depth of the building is deeper, and thus the requirements for the construction quality of the deep foundation pit project are increased accordingly. Deep foundation pi...

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Problems solved by technology

[0006] The mechanism involved in this technical solution may need to cooperate with other large-scale machinery to pull out the sleeve. Secondly, the cement cannot be compacted by other compaction mechanisms in this pile formation method, and the cement density inside the formed pile is low. There may even be air bubbles inside due to the pulling of the pile pipe. Therefore, the quality of the pile cannot be guaranteed, and safety problems are prone to occur.

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