CT理论与应用研究2025，Vol.34Issue(6)：1039-1045,7.DOI:10.15953/j.ctta.2024.199
工程折射波勘探观测系统的优选与实践研究
Optimization and Verification of Observation Systems in Engineering Refraction Seismic Prospecting
摘要
Abstract
In engineering seismic refraction exploration in mountainous areas with strong transverse heterogeneity,an observation system with shots distributed in receivers array is often employed.The velocity profile is then inverted from first-arrival times using ray tomography.However,in the case of a long survey line,the influence of the connecting mode of adjacent arrays on the field workload and inverted profile has not been investigated in detail and clearly.This paper examines three observation systems:adjacent arrays connected head to tail,adjacent arrays connected head to tail and with out-array shots,and adjacent arrays with partial overlap.Through an analysis of the ray coverage in a vertical gradient velocity model,the ray tracing and inversion on the two-layer model,and the inversion of the field data,the inversion quality and field workload of the three observation systems are evaluated comprehensively.Because of its best inversion effect and the lowest field burden,the system with adjacent arrays connected head to tail and with out-array shots is considered to be optimal observation system.关键词
折射波勘探/数值模拟/初至层析反演/排列/观测系统Key words
seismic refraction exploration/numerical simulation/first arrival tomography/array/observation system分类
天文与地球科学引用本文复制引用
石川,孙茂锐,陈超,郑凯,朱伟..工程折射波勘探观测系统的优选与实践研究[J].CT理论与应用研究,2025,34(6):1039-1045,7.基金项目
安徽省交通规划设计研究总院股份有限公司科研项目(综合物探技术在花岗岩地区公路工程勘察中的研究及应用(HF220191)). （综合物探技术在花岗岩地区公路工程勘察中的研究及应用(HF220191）
