Brief introduction to worldwide test types of anchorage
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摘要: 国内锚杆试验类型分为基本试验、蠕变试验及验收试验3类,美国分为性能试验、验证试验及延长蠕变试验3类,欧洲分为探究试验、适应试验及验收试验3类,此外欧美还有提离试验、交变荷载试验、腐蚀防护完整性试验、确定波动荷载下最大工作荷载的试验等一些检测锚杆某些方面性能的试验。相对而言,美国标准对锚杆试验的要求简单一些,欧洲的更严格、更严谨一些。国内工程中,对锚杆基本试验的意义与作用尚重视不够,应把其作为探究性试验而非验证性试验,以便能够更为充分地测试及了解锚杆的性能。Abstract: There are three test types of ground anchor such as basic test, creep test and acceptance test in China, and performance test, proof test and extended creep test in US, and investigation test, suitability test and acceptance test in EU. In addition, there are some tests for some determinate aspects of anchor performance in US and EU such as lift-off test, oscillating load test, testing of corrosion protection, test for cyclic work load, etc. The demands for anchor tests in US code is relatively simpler while more strict and precise in EU code. The meaning and function of basic tests on anchor attract no enough attention in China. It should be more zetetic but not proof for testing and understanding the anchor performances more adequately.
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Keywords:
- anchorage test /
- basic test /
- creep test /
- acceptance test /
- investigation test /
- suitability test /
- lift-off test /
- oscillating load test
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[1] CECS 22:2005 岩土锚杆（索）技术规程[S]. 2005. (CECS22:2005 Technical specification for ground anchors[S]. 2005. (in Chinese)) [2] GB50330—2013 建筑边坡工程技术规范[S]. 2013. (GB50330—2013 Technical code for building slope engineering[S]. 2013. (in Chinese)) [3] PTI（2004）. Recommendations for Prestressed Rock and Soil Anchors[S]. 4th Edition. PTI, Phoenix, AZ, 2004. [4] FHWA-IF-99-015 Geotechnical engineering circular No.4：Ground anchors and anchored systems[S]. FHA, 1999. [5] EN 1537:2013 Execution of special geotechnical works- Ground anchors[S]. CEN, 2013. [6] prEN ISO 22477-5:2009 Geotechnical investigation and testing - Testing of geotechnical structures - Part 5: Testing of anchorages[S]. CEN, 2009. [7] BS 8081:1989 British Standard Code of practice for Ground anchorages[S]. BSI, 1989.
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