标准摘要
[中文适用范围]： 本文件规定了土钉与锚杆拉伸试验的执行规范。 注1：本文件范围内的土钉和锚杆统称为“锚固单元”。 注2：本文件涵盖但不局限于灌浆土钉和锚杆。 注3：本文件未规定试验数量、试验类型、试验方法、验证荷载值及限制标准。上述方面详见EN 1997-3及其国家附录或类似标准。 本文件规定了三种类型的拉伸试验：试验性试验、适用性试验和验收试验；并确认了两种试验方法：方法A为分级加载持荷拉伸试验，方法B为恒位移速率拉伸试验。 本文件就试验设备、测量装置、试验程序、试验结果的定义与呈现方式以及记录内容制定了规范，旨在实现以下目标： a) 测定土钉或锚杆的抗拔阻力； 注4：依据本文件进行的加载试验所测得的粘结段抗拔阻力，可能与设计时所采用的抗拔阻力存在差异。 b) 验证土钉或锚杆的实际行为是否符合设计预期。 [外文原描述]： This document establishes the specifications for the execution of tension tests to be carried out on soil nails and rock bolts. NOTE 1 Soil nails and rock bolts are referred to as elements in the scope of this document. NOTE 2 This document covers but is not limited to grouted soil nails and rock bolts. NOTE 3 This document does not provide specification for the number of tests, the type of test, the Test Method, the value of the proof load and the limiting criteria. These aspects reside in EN 1997-3 and its national annex or in similar standards. This document provides specifications for three types of tension tests: investigation tests, suitability tests and acceptance tests. Two methods of testing are recognised by this document. Test Method A involves step-loaded maintained load tension tests. Test Method B involves constant displacement rate tension tests. This document provides specifications for the experimental devices, the measurement apparatus, the test procedures, the definition and the presentation of the test results and the content of records, aiming at: a) measuring the pull-out resistance of a soil nail or a rock bolt; NOTE 4 A loading test performed using this document provides the pulled-out resistance along the bonded length, that will possibly differ from the pull-out resistance considered in design. b) checking that a soil nail or rock bolt behaves as designed.
英文名称Geotechnical investigation and testing — Testing of geotechnical structures — Part 6: Load testing of soil nails and rock bolts