摘要
该文介绍了采用声波测井、高密度电阻率法以及超高密度电法井间CT等物探方法,并结合钻探等手段检测陕西某商住区下伏煤矿采空区注浆效果,并进行物探综合解释。结果显示注浆在含煤地层采空区聚集分布,钻孔周边区域填充量较大,注浆效果较好,向两侧逐渐减少。物探方法可以有效识别采空区注浆情况。区内钻探取芯表明,注浆体较完整。浆液结石体室内无侧限抗压强度测试满足设计要求。
This paper introduces the use of geophysical methods such as acoustic logging,high-density resistivity method,and cross-well CT with ultra-high density electrical method,combined with drilling and other means to test the grouting effect in the goaf of a buried coal mine in a commercial and residential area in Shaanxi,and to conduct comprehensive interpretation of geophysical exploration.The results show that the grouting is concentrated and distributed in the goaf of coal-bearing strata,with a large amount of filling in the surrounding area of the borehole,the grouting effect is good and it may taper off to the sides.Geophysical exploration can identify the grouting situation in the goaf.The core drilling in the area indicates that the grouting is relatively complete.The unconfined compressive strength test of the qrout-stone indoor meets the design requirements.
作者
朱亚林
张鑫
侯淑鹏
邱瑞军
杨双安
吴汉宁
Zhu Yalin;Zhang Xin;Hou Shupeng;Qiu Ruijun;Yang Shuang'an;Wu Hanning(Henan Provincial Academy of Building Research Co.,Ltd;Institute of Resources Environment,Henan Polytechnic University;Department of Geology,Northwest University)
出处
《勘察科学技术》
2023年第3期49-52,56,共5页
Site Investigation Science and Technology
基金
国家自然科学基金(91855211)。
关键词
采空区
注浆加固
高密度电法
声波测井
超高密度电法井间CT
资料解释
goaf
grouting reinforcement
high-density electrical method
acoustic logging
electrical cross-well CT with ultra-high density
data interpretation
