采矿与安全工程学报Issue(5)：712-716,5.
锚固体应力分布演化规律及其影响因素研究
Research of stress distribution evolution law and influencing factors
摘要
Abstract
With laboratory tests and particle flow simulation, stress distribution evolution law and in-fluencing factors along anchorage segment are studied. The failure process of anchor system can be di-vided into three stages:viscoelastic stage, de-viscosity stage and failure stage. In the viscoelastic stage, the shear stress first increases and then decreases along the anchorage segment, and the peak point is close to the pull end. In the de-viscosity stage, the bond at the pull end first fails, and then expands to the internal layer. The shear stress peak point also moves inward. Elastic modulus of anchor and anchor agent influences the stress distribution. With the increase of anchor’s modulus and decrease of anchor agent’s modulus, the intensity of stress at pull end weakens.关键词
应力分布/拉拔试验/颗粒流模拟/弹性模量Key words
stress distribution/pull test/particle flow simulation/elastic modulus分类
矿业与冶金引用本文复制引用
尹延春,赵同彬,谭云亮,张泽..锚固体应力分布演化规律及其影响因素研究[J].采矿与安全工程学报,2013,(5):712-716,5.基金项目
国家重点基础研究发展计划(973)项目(2010CB226805)；国家自然科学基金项目(51004068，51074099，51274133)；山东省自然科学基金重点项目(ZR2012EEZ002)；山东省优秀中青年科学家科研奖励基金项目(BS2011NJ014)；山东科技大学杰出青年科学基金项目(2011KYJQ106)；山东科技大学“矿山压力与岩层控制”创新团队基金项目(2010KYTD105) （973）
