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Device and method for testing pile-soil interface soil pressure and pore water pressure
The invention belongs to the technical field of building construction equipment, and relates to a device and method for testing pile-soil interface soil pressure and pore water pressure. Silicon piezoresistive earth pressure gauges and silicon piezoresistive pore water pressure gauges are symmetrically mounted on different sections and at different pile ends on the outer side wall of the high-strength prestressed concrete pipe pile in an embedded manner; pile body drill holes are formed in the inner side of the top of the high-strength prestressed concrete pipe pile; armored cables are communicated with a high-speed static strain indicator YE2539 through the pipe body drill holes; the pile end of the high-strength prestressed concrete pipe pile adopts a steel plate to cover the bottom; the silicon piezoresistive earth pressure gauges and the silicon piezoresistive pore water pressure gauges arranged at the bottommost end are mounted at the bottom of the steel plate, and the gaging heads face downwards. Grooves matched with the armored cables are formed in the steel plate. The device is simple and compact in structure, small in size, light in weight, low in cost, convenient to operate, firm and durable, has excellent dynamic-static features, and is wide in measurement range, and high in measurement accuracy and sensitivity, and easily realizes the test on the soil pressure and pore water pressure at the pile-soil interface adjacent to the pile body.
Device and method for testing pile-soil interface soil pressure and pore water pressure
The invention belongs to the technical field of building construction equipment, and relates to a device and method for testing pile-soil interface soil pressure and pore water pressure. Silicon piezoresistive earth pressure gauges and silicon piezoresistive pore water pressure gauges are symmetrically mounted on different sections and at different pile ends on the outer side wall of the high-strength prestressed concrete pipe pile in an embedded manner; pile body drill holes are formed in the inner side of the top of the high-strength prestressed concrete pipe pile; armored cables are communicated with a high-speed static strain indicator YE2539 through the pipe body drill holes; the pile end of the high-strength prestressed concrete pipe pile adopts a steel plate to cover the bottom; the silicon piezoresistive earth pressure gauges and the silicon piezoresistive pore water pressure gauges arranged at the bottommost end are mounted at the bottom of the steel plate, and the gaging heads face downwards. Grooves matched with the armored cables are formed in the steel plate. The device is simple and compact in structure, small in size, light in weight, low in cost, convenient to operate, firm and durable, has excellent dynamic-static features, and is wide in measurement range, and high in measurement accuracy and sensitivity, and easily realizes the test on the soil pressure and pore water pressure at the pile-soil interface adjacent to the pile body.
Device and method for testing pile-soil interface soil pressure and pore water pressure
ZHANG MINGYI (author) / WANG YONGHONG (author) / BAI XIAOYU (author) / GAO QIANG (author) / WANG PENG (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
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Gründungen
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