岩土工程勘察和岩土结构测试-第10部分:测试:测试桩快速荷载试验(ISO 22477-10:2016)

[中文适用范围]： ISO 22477的本部分规定了对桩进行快速试验的规范，其中单桩承受轴向压缩载荷，以测量其在快速加载下的载荷-位移行为并获得其抗压阻力（Rc，m）阅读并能够评估其相应的负载位移行为。 ISO 22477 本部分的规范适用于承受轴向压缩载荷的桩。 ISO 22477 的这一部分涵盖了 EN 1536、EN 12699 和 EN 14199 中提到的所有类型的桩。 ISO 22477 本部分中的测试仅涉及桩上轴向压缩载荷的加速测试。 注 1：ISO 22477 的本部分可与 EN 1997-1 结合使用。 EN 1997-1 中给出了设计中要考虑的测试载荷极限状态的部分安全系数的数值。 对于根据 EN 1997-1 的设计，经过适当评估后，对具有轴向压缩载荷的桩进行快速测试的结果被认为等于抗压阻力 Rc,m 的测量值。 注 2：附录 A 中给出了评估轴向压缩桩快速试验结果以确定抗压阻力测量值和相应荷载-位移行为的指南。 ISO 22477 的这一部分给出了以下规范： a) 将测试桩加载至极限状态的调查测试； b) 控制试验，其中桩承受超出使用极限状态的规定载荷。 注3：一般来说，调查测试的重点是桩类型的常识；控制测试侧重于特定的打桩应用。 [外文原描述]： ISO 22477-10:2016 establishes the specifications for the execution of rapid load pile tests in which a single pile is subject to an axial load in compression to measure its load-displacement behaviour under rapid loading and to allow an assessment of its measured compressive resistance (Rc,m) and corresponding load-displacement behaviour. ISO 22477-10:2016 is applicable to piles loaded axially in compression. All pile types mentioned in EN 1536, EN 12699 and EN 14199 are covered by this part of ISO 22477. The tests in this part of ISO 22477 are limited to rapid load pile tests only. NOTE 1 This part of ISO 22477 can be used in conjunction with EN 1997?1. Numerical values of partial factors for limit states from pile load tests to be taken into account in design are provided in EN 1997?1. For design to EN 1997?1, the results from rapid load pile testing will be considered equivalent to the measured compressive resistance, Rc,m, after being subject to appropriate analysis. NOTE 2 Guidance on analysis of the rapid load testing results to determine measured compressive resistance and corresponding load-displacement behaviour is given in Annex A. ISO 22477-10:2016 provides specifications for the following: a) investigation tests, whereby a sacrificial test pile is loaded up to ultimate limit state; b) control tests, whereby the pile is loaded up to a specified load in excess of the serviceability limit state. NOTE 3 Generally, an investigation test focuses on general knowledge of a pile type; a control test focuses on one specific application of a pile.