Reinforced cement mixing pile composite foundation treatment and construction method

A technology of cement mixing piles and composite foundations, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of low strength and long age of cement mixing piles, achieve shortened construction period, fast construction period, and improve foundation bearing capacity force effect

Inactive Publication Date: 2010-03-03
朱奎
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Problems solved by technology

[0003] The object of the present invention is to provide a composite foundation treatment and construction method

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  • Reinforced cement mixing pile composite foundation treatment and construction method

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Embodiment Construction

[0025] An office building is a 6-story frame structure with a building area of ​​5600m 2 , the thickness of highly compressible silt is 11m, and the water content is as high as 90%. The foundation uses reinforced cement mixing pile composite foundation for foundation treatment. The length of the cement mixing pile is 14m. After the construction of the foundation floor is completed, well point pipes are set on the periphery of the foundation floor for electroosmotic dewatering while the upper structure is being constructed. The cement mixing pile is used as the anode, and the well point tube is used as the cathode. Under the action of the electric field, the positively charged pore water flows to the cathode, and the cathode uses the well point tube, so the water in the muddy soil is forced to flow into the well point tube, and then pumped from the well point tube, causing the groundwater table to gradually drop. The negatively charged soil particles move towards the anode, co...

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Abstract

The invention discloses a reinforced cement mixing pile composite foundation treatment and construction method. The method is characterized in that after the construction of the foundation slab ends,a well point pipe is arranged in the periphery of the foundation slab to perform electroosmosis for precipitation while the construction of the super structure is performed. The invention uses the inserted reinforcing bars of the cement mixing pile as anode and the well point well in the periphery of the foundation as cathode. The electroosmosis for precipitation is performed during the period ofthe construction of the super structure. The treatment and construction method of the invention can obviously improve the bearing capacity of foundation soil and is characterized by low cost and fastconstruction.

Description

technical field [0001] The invention relates to the construction field, in particular to a composite foundation treatment and construction method of reinforced cement mixing piles. Background technique [0002] If the traditional cement mixing pile is immersed in water, the cement soil is difficult to harden, and the strength of the cement soil is difficult to meet the requirements. For soils with high water content, it takes a long time for cement soil to reach 100% strength, generally at least 90 days. In this case, the construction speed of the superstructure should not be too fast, otherwise quality accidents such as building inclination and excessive settlement will occur due to the failure of the cement and soil strength to meet the requirements. If the water content of the soil layer where the cement mixing pile is located is reduced during the construction of the upper structure of the building, the age for the cement mixing pile to reach the specified strength can ...

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Application Information

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IPC IPC(8): E02D19/06E02D5/46
Inventor 朱奎
Owner 朱奎
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