大直径嵌岩后注浆钻孔灌注桩试桩分析

大直径嵌岩后注浆钻孔灌注桩试桩分析 English Version

详细信息

(1. Architectural Design Institute of Southeast University, Nanjing 210096, China; 2. Institute of Geotechnical Engineering of Southeast University, Nanjing 210096, China)

摘要: 桩基静载试验是一项方法成立、理论上无可争议的桩基检测技术。在确定单桩极限承载力方面，它是目前最为准确、可靠的检验方法，判定某种动载检验方法是否成熟，均以静载试验成果的对比误差大小为依据。本文依托某110 kV变电站工程，对该工程的8根大直径嵌岩后注浆钻孔灌注桩试桩，进行了单桩竖向承载力静载荷试验及单桩抗拔承载力静载荷试验，对测试结果进行了分析，得出了有益的结论。
- 钻孔灌注桩 /
- 静载荷试验 /
- 抗拔试验 /
- 试桩分析
Abstract: The static load test on piles is a method established theoretically undisputed pile test technology. In determining the ultimate bearing capacity, it is the most accurate, reliable method to determine whether some kind of dynamic load test method is mature or not, that is , the magnitude of error of the static load test results is the basis. Based on a case of a 110 kV substation project, for eight large-diameter rock grouting bored piles, the static load tests on vertical bearing capacity and uplift capacity of single pile are carried out. The test results are analyzed, and some useful conclusions are drawn.
- bored cast-in-place piles /
- static load test /
- uplift test /
- test pile analysis

[1]	JGJ106—2003 建筑基桩检测技术规范[S]. 2003. (JGJ106—2003 Technical code for testing of building foundation piles[S]. 2003. (in Chinese))
[2]	GB50202—2002 建筑地基基础工程施工质量验收规范[S]. 2002. (GB50202—2002 Code for acceptance of construction quality of building foundation[S]. 2002. (in Chinese))