摘要
利用建立的温度对岩体电荷感应影响试验系统,研究了不同温度下花岗岩、砂岩电荷感应变化特征和规律。从试验中观察到,花岗岩、砂岩温度达到30℃左右,开始有微弱电荷感应信号产生。随温度升高,电荷感应信号逐渐增强,花岗岩温度达到100℃,砂岩温度达到150℃后,电荷感应信号随温度的升高增幅较快。结果表明:随温度变化,岩体存在热电荷阈值。通过岩石电荷感应的研究,对进一步深入研究煤岩破裂电荷的产生机理具有一定的作用。
Using the test system of rock＇s charge induction influence on temperature,studied the characteristics and rules of rock＇s charge induction under different temperature.From the experiment observed,began to have signal of charge induction when granite and sandstone at about 30 ℃.As the temperature rise further,the temperature of granite reaches 150 ℃ and the temperature of sandstone reaches 100 ℃,the signal of charge induction increases rapidly.The results show that rock exists threshold value with the temperature change.Study of charge induction of rock has a certain effect on a further research the producing mechanism of coal rock burst charge.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2012年第10期1654-1657,共4页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)资助项目(2010CB226803)
国家自然科学基金面上资助项目(11172121)
关键词
岩石
电荷感应
温度
特征规律
rock
charge induction
temperature
characteristic rule
作者简介
潘一山（1964-），男，辽宁丹东人，教授，博士生导师。E—mail：panyish_cn@sina．com
