地震表层研究中若干试验与分析

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英文篇名：Seismic Surface Lager Research: Test and Analysis of Some Problems 中文刊名：河北地质学院学报 作者：王俊茹 英文作者：Wang Junru(Shijiazhuang Economic University ; 050031 ) 中文关键词：地震小折射 ; 微地震测井 ; 爆炸井 ; 地震表层研究 ; 初至方向 ; 埋砂爆炸井 英文关键词：seismic refraction ; microseismogram log ; explosive log ; explosive log of buring sand ; first arrival direction ; seismic surface lager research 出版日期：1996-08-30 机构：石家庄经济学院电子与信息工程系 年：1996 期：Z1 出版单位：河北地质学院学报

摘要

地震表层研究主要是为地震勘探野外静校正提供低降速带厚度及速度参数。本文根据地震表层研究中所做的若干试验结果，分析了在应用地震小折射及各种测井方法确定表层参数时的内在关系；讨论了地震记录近炮点道与远炮点道波初至方向相反的原因；阐述了激发药量对压制背景噪声的重要性及偏移距与接收能量的关系，给出了包括黄土和细黄砂成份的泥浆速度的试验测定值是１４４７（ｍ／ｓ）。
eismic surface lager research is to serve the purposes of providing the field static corrections with thickness and velocity of the low velocity lager. This paper is based on some test results for seismic surface layer research. It is analyzed that the internal relations of surface layerdatas by seismic refraction and microseismogram log; It is discussed that the reasons for the opposite of first arrival directions between near-trace and far-trace waves; It is explained that the explosive quantity plays a role in reducing background noise and the relation between offest and energy. Mud with loess and fine sand is given a velocity V, It is 1447 (m/s).

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