压头静侵入脆性岩石引起等效压杆失稳侵入机理  

Mechanism on equivalent press-pole breaked for press-head to insert brittle rock in equilibrium

作　　者：吕力行[1] 

机构地区：[1]湖南科技大学资源工程系,湖南湘潭411201

出　　处：《湘潭矿业学院学报》2003年第1期13-16,共4页Journal of Xiangtan Mining Institute

摘　　要：从压头侵入脆性岩石所共有的基本现象入手,在研究压头下方岩石发生突然崩裂力学机理的基础上,提出了等效压杆失稳侵入机理.通过深入分析直接推动压头与岩石受力结构平衡移动主要因素之间的内在联系,获得了对压头静侵入脆性岩石本质的新认识.给出了反映压头历经静载蓄能、等效压杆失稳、聚能密实核被引爆进而侵入脆性岩体过程的物理、力学模型.图2,参13.The mechanism on equivalent presspole breaked is bring forward basicing on researched of mechanics mechanism below presshead rock to take place burst apart. The works start with common phenomena it has taked place when brittle rock is inserted by presshead smoothly.The new comprehension of character is obtained on the presshead to insert brittle rock in equilibrium as the internality contact among ingredients mostly are analysed thoroghly when the transfering for the structure of presshea with rock are impeled.The process that have indicated presshead and rock pressed to store up energy and the equivalent presspole breaked when rock core of assemble energy is detonated so the presshead insert rock is shown by physics and mechanics model. 2figs.,13refs.

关 键 词：等效压杆 失稳 脆性岩石 压头侵入岩石 冲击作用能 

分 类 号：TD313[矿业工程—矿井建设] TU45[建筑科学—岩土工程]