Compensation mechanics application of NPR anchor cable to large deformation tunnel in soft rock
Yong Li1
Shusen Huo2
Manchao He2
Zhigang Tao2
1.College of Geoscience and Surveying Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China;State Key Labortaory for Fine Exploration and Intelligent Development of Coal Resources,China University of Mining and Technology-Beijing,Beijing 10083,China2.State Key Laboratory for Tunnel Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China
摘要：NPR anchor cable is a new type of support material with negative Poisson's ratio effect,which is widely used in mine support because of its superb compensating mechanical effect.In order to study more deeply the support effect of NPR anchor cable in soft rock large deformation tunnel,indoor test,numerical simulation and field monitoring were used to study the strong weathering carbonaceous slate tunnel in Min County.The study shows that NPR anchor cable has extraordinary compensat-ing mechanical behavior for soft rock large deformation tunnel,which can control the deformation of tunnel surrounding rock below 300 mm and keep the constant resistance value around 350 kN,which has obvious effect on the control of broken rock.To provide a basis for other research on support for large deformation tunnels in soft rock.
机标关键词：applicationmechanicstunnelanchorcablelargerockcompensation
论文发表日期：2024-10-28
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：15( 177-191 )
英文信息