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Ultimate bearing capacity detection device and method for front-supporting type grouting steel pipe pile
The invention discloses an ultimate bearing capacity detection device and method for a front-supporting type grouting steel pipe pile. The method comprises the steps that a counter-force supporting mechanism is arranged between adjacent H-shaped steel of an SMW construction method pile construction underground diaphragm wall; a sealing head steel plate is welded to the end of the front-supporting type grouting steel pipe pile; a hydraulic jack is arranged between the sealing head steel plate and the counter-force supporting mechanism; and the hydraulic jack is connected to a pile foundation static load testing and analyzing system, loads are output through the pile foundation static load testing and analyzing system and loaded to the front-supporting type grouting steel pipe pile through ascending and descending of the hydraulic jack, and therefore the ultimate bearing capacity of the front-supporting type grouting steel pipe pile is detected. The ultimate bearing capacity detection device and method are suitable for ultimate bearing capacity detection of the front-supporting type grouting steel pipe pile of an inclined supporting system, good reverse bearing capacity can be provided, the loads can be output through the pile foundation static load testing and analyzing system and loaded to the front-supporting type grouting steel pipe pile through ascending and descending of the hydraulic jack, and therefore slow loading detection can be carried out on the ultimate bearing capacity of the front-supporting type grouting steel pipe pile.
本发明公开了一种前撑式注浆钢管桩的极限承载力检测装置及方法，该方法包括在SMW工法桩施工地下连续墙的相邻H型钢之间设置反力支撑机构；在前撑式注浆钢管桩的端部焊接封头钢板；在封头钢板与反力支撑机构之间设置液压千斤顶；将液压千斤顶连接在桩基静载荷测试分析系统上，通过桩基静载荷测试分析系统输出载荷通过液压千斤顶的升降加载到前撑式注浆钢管桩上，以对前撑式注浆钢管桩的极限承载力进行检测。本发明适用于斜撑体系的前撑式注浆钢管桩的极限承载力检测，能够提供较好的反向承载力，能够通过桩基静载荷测试分析系统输出载荷通过液压千斤顶的升降加载到前撑式注浆钢管桩上，以对前撑式注浆钢管桩的极限承载力进行慢速加载检测。
Ultimate bearing capacity detection device and method for front-supporting type grouting steel pipe pile
The invention discloses an ultimate bearing capacity detection device and method for a front-supporting type grouting steel pipe pile. The method comprises the steps that a counter-force supporting mechanism is arranged between adjacent H-shaped steel of an SMW construction method pile construction underground diaphragm wall; a sealing head steel plate is welded to the end of the front-supporting type grouting steel pipe pile; a hydraulic jack is arranged between the sealing head steel plate and the counter-force supporting mechanism; and the hydraulic jack is connected to a pile foundation static load testing and analyzing system, loads are output through the pile foundation static load testing and analyzing system and loaded to the front-supporting type grouting steel pipe pile through ascending and descending of the hydraulic jack, and therefore the ultimate bearing capacity of the front-supporting type grouting steel pipe pile is detected. The ultimate bearing capacity detection device and method are suitable for ultimate bearing capacity detection of the front-supporting type grouting steel pipe pile of an inclined supporting system, good reverse bearing capacity can be provided, the loads can be output through the pile foundation static load testing and analyzing system and loaded to the front-supporting type grouting steel pipe pile through ascending and descending of the hydraulic jack, and therefore slow loading detection can be carried out on the ultimate bearing capacity of the front-supporting type grouting steel pipe pile.
本发明公开了一种前撑式注浆钢管桩的极限承载力检测装置及方法，该方法包括在SMW工法桩施工地下连续墙的相邻H型钢之间设置反力支撑机构；在前撑式注浆钢管桩的端部焊接封头钢板；在封头钢板与反力支撑机构之间设置液压千斤顶；将液压千斤顶连接在桩基静载荷测试分析系统上，通过桩基静载荷测试分析系统输出载荷通过液压千斤顶的升降加载到前撑式注浆钢管桩上，以对前撑式注浆钢管桩的极限承载力进行检测。本发明适用于斜撑体系的前撑式注浆钢管桩的极限承载力检测，能够提供较好的反向承载力，能够通过桩基静载荷测试分析系统输出载荷通过液压千斤顶的升降加载到前撑式注浆钢管桩上，以对前撑式注浆钢管桩的极限承载力进行慢速加载检测。
Ultimate bearing capacity detection device and method for front-supporting type grouting steel pipe pile
前撑式注浆钢管桩的极限承载力检测装置及方法
LU CHENHUA (author) / ZHANG JUNLIE (author) / LIU XIN (author) / FANG SIQIAN (author) / SUN JIAN (author)
2021-07-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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