摘要
在分析比较现行相关规范对基坑支护土钉检测、验收试验相关规定的基础上,对试验设计的绿色节能性、目的可实现性和涉及到的土钉杆体抗拉配筋及锚固体抗拔锚固长度设计方法等方面可能存在的某些缺陷进行了初步探讨,相应提出了土钉验收试验抗拔质量检测合理性评估参考标准、抗拉强度合理性评估参考标准等,并对基坑支护土钉检测验收试验设计及临时自由段设置等相关要求提出了新的思路建议,以期对土钉验收试验设计和相应规范修订做出有益的探索。
Based on the analysis and comparison of the relevant requirements of the current relevant specifications on the detection and acceptance test of soil nailing for foundation pit support,this paper made a preliminary discussion on the green energy-saving performance of the test design,the realizability of the purpose and some possible defects in the design methods of the tensile reinforcement of soil nailing bars and the pullout anchorage length of anchorage bodies. In addition,the reference standards for the rationality evaluation on pulling test and tensile strength of soil nailing acceptance test were put forward accordingly,and new ideas and suggestions for the requirements on design of the detection and acceptance test of soil nailing for foundation pit support and the setting of temporary free sections were proposed with a view to the acceptance test design of soil nailing and amendments to corresponding specifications.
作者
周瑞国
郝峰
ZHOU Ruiguo;HAO Feng(Weifang Geotechnical Investigation and Surveying Institute,Weifang Shandong 261043,China;Shandong Provincial No.4 Institute of Geological and Mineral Resources Survey,Weifang Shandong 261021,China)
出处
《工程质量》
2019年第8期1-6,共6页
Construction Quality
关键词
基坑支护
土钉
验收试验
节能设计
可实现性
foundation pit support
soil nailing
acceptance test
energy-saving design
realizability
