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Sleeve rotating friction type breaking pile-extracting construction method
The invention provides a sleeve rotating friction type breaking pile-extracting construction method and belongs to the technical field of building construction technology. The construction method comprises the following process: pile detection, site layout of equipment and positioning of mechanical and electric systems and a background operation command system, placement of equipment and auxiliary components, rotating press-in of a sleeve, full-section rotary breaking, grabbing of soil around the pile and extracting of the broken pile, demounting of the broken pile, sectional pile extracting to the operation depth, sleeve pulling, backfill operation, removal of main machine positioning pins and shifting to other sites for construction. The construction method is simple and is convenient to operate; compared with other pile clearing manners, the construction method is high in efficiency, no vibration is produced due to the adoption of hydrostatic drive, and therefore, no strong noise is generated in the whole construction process; the construction method is good in applicability, and suitable for prefabricated piles and cast-in-place piles; a dry type drilling method is adopted for the whole construction process, and therefore, the whole construction process is free from pollution such as mud discharge, and is environment-friendly and tidy; in addition, the sleeve is adopted to protect the wall, and soil is backfilled immediately after the old pile is extracted to completely avoid the settlement of an adjacent foundation, and consequently, the safety performance is good.
Sleeve rotating friction type breaking pile-extracting construction method
The invention provides a sleeve rotating friction type breaking pile-extracting construction method and belongs to the technical field of building construction technology. The construction method comprises the following process: pile detection, site layout of equipment and positioning of mechanical and electric systems and a background operation command system, placement of equipment and auxiliary components, rotating press-in of a sleeve, full-section rotary breaking, grabbing of soil around the pile and extracting of the broken pile, demounting of the broken pile, sectional pile extracting to the operation depth, sleeve pulling, backfill operation, removal of main machine positioning pins and shifting to other sites for construction. The construction method is simple and is convenient to operate; compared with other pile clearing manners, the construction method is high in efficiency, no vibration is produced due to the adoption of hydrostatic drive, and therefore, no strong noise is generated in the whole construction process; the construction method is good in applicability, and suitable for prefabricated piles and cast-in-place piles; a dry type drilling method is adopted for the whole construction process, and therefore, the whole construction process is free from pollution such as mud discharge, and is environment-friendly and tidy; in addition, the sleeve is adopted to protect the wall, and soil is backfilled immediately after the old pile is extracted to completely avoid the settlement of an adjacent foundation, and consequently, the safety performance is good.
Sleeve rotating friction type breaking pile-extracting construction method
FENG YONGHONG (author) / ZHOU CHAOJIE (author) / LIU DI (author) / WANG JIAHONG (author) / SHENG SI (author) / GAO ZHENFENG (author) / FAN XI (author) / LIN KE (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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