高精度浅层工程地震勘查软硬件系统研究

【作者】 杨恒辉；

【导师】 孙渊； 潘中印；

【作者基本信息】 长安大学 ， 地质工程， 2006， 硕士

【摘要】 在环境与工程勘查领域,不论是道路桥梁基础勘查以及隧道勘查和检测、建筑物的地基勘查、建筑材料或构件的质量检测等,还是滑坡灾害调查、水库大坝及江河堤坝隐患调查以及区域地质稳定性评价等,浅层地震勘查与检测方法技术在其领域内是必不可少且最重要的手段之一,但由于浅地层的特殊性,如地表环境复杂、地层介质的差异性和稳定性变化较大以及所勘查对象的尺度一般较小,因此,就方法技术而言,对资料的采集、处理和解释均与中深层地震勘探有所不同,甚至有更高的要求,如勘查的精度、信噪比和分辨率等。作为勘查的重要环节之一的资料采集工作,影响采集质量的因素主要有采集的方法技术及仪器设备的精度和可靠性。论文在地震勘查基本理论指导下,对研制开发的GDZ-24A型24位A/D高分辨率浅层地震采集系统及配套的实时浅层地震反射波处理软件进行了详细的分析和论述,阐明了其设计思想和实现过程,在整体设计框架下,完成了功能模块设计。在充分考虑了整体系统的实时性、灵活性、有效性以及高保真性的条件下,实现了功能模块及整机系统的研发,同时开发完成了系统支持软件和实时处理软件,经系统测试,其一致性、噪声水平、波形畸变等性能指标均达到了设计精度要求,实际应用表明,整机的稳定性、灵活性、有效性高,可满足浅层高精度地震勘查的需要。更多还原

【Abstract】 At environment and engineering perambulate region, not only road bridge foundation survey and tunnel survey and detection, constructional foundation investigation, constructional material or member mass detection, but also landslip calamity survey, reservoir large dam and river dike snag survey as well as the areal geology stability appraise, shallow seismic survey and test method technology are absolutely necessarily and even are the most important instrument at this region, therefor owing to epistratal particularity, such as surface environment intricacy, strata dielectric otherness and stability change as well as the scale of the surveyed object is general on the small side, wherefore, in the field of method technology, it has different from the middle-deep seismic prospecting in data acquisition, processing and interpretation, even has higher require, such as survey precision, SNR and resolution and so on. Seismic data acquisition is one important part of survey, and the factors which impact collection quality mostly have are acquisition methods and the accuracy and reliability of instruments.This paper is under the direction of seismic survey elementary theories, and has detailed analyses and discuss about the developing developmental GDZ-24A type 24-bit A/D High Resolution shallow seismic acquisition system and real-time shallow seismic reflection processing software, and clarify clearly design philosophy and implementation procedure, at integrated design frame, and finished the design of functional modules. Be on the real time gender, mobility, validity and high fidelity ’ condition , realized clearly functional module and complete the machine system, simultaneous developed and finished system support software and real-time processing software, after system tests , level of noise, wave distortion and other performances equal to design accuracy require, practical application shows that , complete machine’ stability, mobility, validity is high, and can satisfy the demand of shallow layer high precision seismic survey.更多还原