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A platform for research: civil engineering, architecture and urbanism
Perforated pipe method super-deep, fast, and super-large diameter high pressure chemical churning pile construction method
The invention relates to a perforated pipe method super-deep, fast, and super-large diameter high pressure chemical churning pile construction method. Two high pressure curing liquid and compressed air injection openings and a high pressure water pipe injection opening and compressed air water injection nozzle are arranged on the lower side of a drill, the position of the high pressure water pipe injection opening and compressed air water injection nozzle is above the position of the high pressure curing liquid and compressed air injection openings, and the two pressure curing liquid and compressed air injection openings are in the symmetric positions of the same flat surface; the high pressure water pipe injection opening downward injects water to conduct cutting, the lower side of a drill stem is higher than a bottom label of a designed pile, then the high pressure water pipe injection opening and compressed air injection nozzle injects a high pressure water pipe injection flow and compressed air injection flow, and the high pressure curing liquid and compressed air injection openings inject high pressure curing liquid and compressed air injection flow. With the drill stem rotating and lifting, adjacent soil body is conducted a secondary cutting, and cement paste and soil are mixed to a pile. Compared with the prior high pressure chemical churning pile, the overall pile formation efficiency is increase by almost 48%.
Perforated pipe method super-deep, fast, and super-large diameter high pressure chemical churning pile construction method
The invention relates to a perforated pipe method super-deep, fast, and super-large diameter high pressure chemical churning pile construction method. Two high pressure curing liquid and compressed air injection openings and a high pressure water pipe injection opening and compressed air water injection nozzle are arranged on the lower side of a drill, the position of the high pressure water pipe injection opening and compressed air water injection nozzle is above the position of the high pressure curing liquid and compressed air injection openings, and the two pressure curing liquid and compressed air injection openings are in the symmetric positions of the same flat surface; the high pressure water pipe injection opening downward injects water to conduct cutting, the lower side of a drill stem is higher than a bottom label of a designed pile, then the high pressure water pipe injection opening and compressed air injection nozzle injects a high pressure water pipe injection flow and compressed air injection flow, and the high pressure curing liquid and compressed air injection openings inject high pressure curing liquid and compressed air injection flow. With the drill stem rotating and lifting, adjacent soil body is conducted a secondary cutting, and cement paste and soil are mixed to a pile. Compared with the prior high pressure chemical churning pile, the overall pile formation efficiency is increase by almost 48%.
Perforated pipe method super-deep, fast, and super-large diameter high pressure chemical churning pile construction method
HU XIAOHU (author) / WU GUOMING (author) / NAKANISHI YASUHARU (author)
2015-05-13
Patent
Electronic Resource
English
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