1． 概况
本工程桩的类型主要有三种，直径500，直径600以及直径800。最小设计承载力：抗压承载力500KN,抗拉承载力为200KN,水平承载力50KN。
duration and with increment on loads intervals and required cycles. The settlement of the piles under the test load is to be observed at intervals to determine the bearing characteristic of the pile under the maximum test load which is normally set at 2 the design load of the pile.
a、某级荷载作用下，桩顶沉降量大于前一级荷载作用下沉降量的5倍。
b、某级荷载作用下，桩顶沉降量大于前一级荷载作用下沉降量的2倍，且经24小时尚未达到相对稳定标准。
c、已达到设计要求的最大加载量。
d、当工程桩作锚桩时，锚桩上拔量已达到允许值。
e、当荷载—沉降曲线呈缓变型时，可加载至桩顶总沉降量60～80mm;在特殊情况下，可根据具体要求加载至桩顶累计沉降量超过80mm。
a. the settlement at one stage is more than 5 times the settlement of previous stage.
b. the settlement at one stage is more than 2 times the settlement of previous stage and is not stable after 24 hours.
c. already reach the maximum load requested by the design
d. the load-settlement curve goes slow change, total settlement is 60-80mm;the accumulative settlement exceeds 80mm according to specific requirements at special condition.
1． 概况
本工程桩的类型主要有三种，直径500，直径600以及直径800。最小设计承载力：抗压承载力500KN,抗拉承载力为200KN,水平承载力50KN。
duration and with increment on loads intervals and required cycles. The settlement of the piles under the test load is to be observed at intervals to determine the bearing characteristic of the pile under the maximum test load which is normally set at 2 the design load of the pile.
a、某级荷载作用下，桩顶沉降量大于前一级荷载作用下沉降量的5倍。
b、某级荷载作用下，桩顶沉降量大于前一级荷载作用下沉降量的2倍，且经24小时尚未达到相对稳定标准。
c、已达到设计要求的最大加载量。
d、当工程桩作锚桩时，锚桩上拔量已达到允许值。
e、当荷载—沉降曲线呈缓变型时，可加载至桩顶总沉降量60～80mm;在特殊情况下，可根据具体要求加载至桩顶累计沉降量超过80mm。
a. the settlement at one stage is more than 5 times the settlement of previous stage.
b. the settlement at one stage is more than 2 times the settlement of previous stage and is not stable after 24 hours.
c. already reach the maximum load requested by the design
d. the load-settlement curve goes slow change, total settlement is 60-80mm;the accumulative settlement exceeds 80mm according to specific requirements at special condition.