摘要
Abstract
The Loess Plateau has always been difficult to use sesimic technology due to its thick, dry and loose layer of loess, deep phreatic, strong attenuation of seismic waves, and poor condition for shooting and receiving. it is dif?ficult to obtain seismic profile with high signal-to-noise ratio and solve geological problems. In Shilou surveying ar?ea of Hedong coal mine in Shanxi province, by avoiding thick layer of loess, placing guns along the valley and curved lines of seismic geophone program, high quality seismic profiles can be obtained and seismic exploration re?sults be gained, construction efficiency be reached and exploration costs be solved. But due to the curved line of seismic exploration and influence degree of bending toward the valley, underground discrete reflection points have been formed, the superposition effect has been affected, and geological false appearances can be caused easily. In order to ensure authenticity of seismic profiles, dispersion range of guns and detection points should be controlled by collection and conduction.关键词
黄土高原/地震勘探/共反射点/地震剖面/河东煤田/山西省Key words
Loess Plateau/seismic exploration/Hedong coalfield/common reflection point/seismic section分类
天文与地球科学
