软岩地层多段扩体锚杆施工工艺及拉拔试验

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软岩地层多段扩体锚杆施工工艺及拉拔试验

唐延贵, 岳大昌, 陈晓悟, 李明

文章导航 > 岩土工程技术 > 2019 > 33(3): 178-182

唐延贵, 岳大昌, 陈晓悟, 李明. 软岩地层多段扩体锚杆施工工艺及拉拔试验[J]. 岩土工程技术, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

引用本文:

唐延贵, 岳大昌, 陈晓悟, 李明. 软岩地层多段扩体锚杆施工工艺及拉拔试验[J]. 岩土工程技术, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

Tang Yangui, Yue Dachang, Chen Xiaowu, Li Ming. Construction Technology and Uplift Capacity Test of Anti-floating Anchor in Chengdu Soft Rock Foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

Citation:

Tang Yangui, Yue Dachang, Chen Xiaowu, Li Ming. Construction Technology and Uplift Capacity Test of Anti-floating Anchor in Chengdu Soft Rock Foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

唐延贵, 岳大昌, 陈晓悟, 李明. 软岩地层多段扩体锚杆施工工艺及拉拔试验[J]. 岩土工程技术, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

引用本文:

唐延贵, 岳大昌, 陈晓悟, 李明. 软岩地层多段扩体锚杆施工工艺及拉拔试验[J]. 岩土工程技术, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

Tang Yangui, Yue Dachang, Chen Xiaowu, Li Ming. Construction Technology and Uplift Capacity Test of Anti-floating Anchor in Chengdu Soft Rock Foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

Citation:

Tang Yangui, Yue Dachang, Chen Xiaowu, Li Ming. Construction Technology and Uplift Capacity Test of Anti-floating Anchor in Chengdu Soft Rock Foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(3): 178-182. doi: 10.3969/j.issn.1007-2993.2019.03.012

软岩地层多段扩体锚杆施工工艺及拉拔试验

doi: 10.3969/j.issn.1007-2993.2019.03.012

成都四海岩土工程有限公司, 四川成都 610094

作者简介:
唐延贵，男，1987生，四川巴中人，硕士研究生，工程师，主要从事岩土工程勘察及地基处理设计。E-mail：182389383@qq.com

中图分类号: TU413.4
计量
- 文章访问数: 47
- HTML全文浏览量: 6
- PDF下载量: 9
- 被引次数: 0
出版历程
- 收稿日期: 2018-12-06
- 网络出版日期: 2021-07-06

Construction Technology and Uplift Capacity Test of Anti-floating Anchor in Chengdu Soft Rock Foundation

Chengdu Global Geotechnical Co., Ltd., Chengdu 610094, Sichuan, China

摘要: 改变锚固体直径、改善锚固体与岩土间界面特性是提高锚杆抗拔承载力的重要途径。软岩地层多段扩体锚杆采用机械扩孔工艺施工，进行多级循环加载卸载试验，根据锚杆的荷载-位移曲线及现场变形破坏特征，确定锚杆破坏模式为钢筋先屈服，最后钢筋被拔出，同时锚固体被拉裂。试验结果表明多段扩体抗浮锚杆施工工艺可行，锚杆抗拔承载力高，实际工程中能满足抵抗较高水浮力的需求。
- 软岩地层 /
- 多段扩体 /
- 抗浮锚杆 /
- 拉拔试验
Abstract: Anchorage diameter and interface characteristics of soil-anchorage body are critical factors to affect the ultimate bearing capacity of anti-floating anchor.The rotary jet grouting anchors are constructed and the cycle loading pullout tests of anchors are conducted in the layer of soft rock.The test results show that anchors’failure mode has the process of rebar yielded first,then pulled out and anchorage body drawing breakage.The ultimate bearing capacity value of anchors is more than 900k N,which can meet the requirment of practical engineering.
- soft rock foundation /
- rotary jet grouting /
- anti-floating anchor /
- test of uplift capacity

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文章访问数: 47
HTML全文浏览量: 6
PDF下载量: 9
被引次数: 0

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