摘要
该文以阳泉市某采空区场地为研究对象,通过资料收集、地质调查、地球物理探测、室内外岩土试验和水文地质测试等方法,对采空区的形态及性质进行了系统的研究,认为收集开采资料和调查访问是工程地质测绘工作中不可忽视的非常重要的一个环节;直达波地震CT技术揭示了波在经过采空区其振幅和波速明显衰减的作用机理,有效地探测了地下采空区的形态分布;钻探技术验证了测绘和物探的结果;注水试验可根据岩土层渗透性的大小确定上覆岩土体的垮落压密程度,系统的工作获得了准确的第一手资料,为采空区的分布情况及稳定性等方面的研究奠定了基础。
In this paper, taking a goaf site in Yangquan City as research object, through data collection, geological survey, geophysical exploration, geotechnical testing indoor and outdoor, hydrogeological testing methods and so on, the morphology and nature of mined-out area are systematically studied. From the research it is proposed that collected survey data and investigation interview are the crucial link which can not be ignored in engineering geological mapping; the direct wave seismic CT technology reveals the mechanism that amplitude and velocity of wave are apparently attenuate through goaf, effectively detects the morphological distribution of underground space. The drilling technology verifies the results of mapping and geophysical prospecting; water injection test can determine the degree of compaction of overlying reck soil based on permeability of rock soil layers;systematic work obtains the first hand accurate data , and it provides the basis for studying the distribu- tion and stability of goaf.
出处
《勘察科学技术》
2010年第2期61-64,F0003,共5页
Site Investigation Science and Technology
关键词
采空区
形态及性质
地震CT
注水试验
钻探
goal
morphology and nature
seismic CT
water injection test
drilling
