瞬态瑞雷波在工程勘察中的应用
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摘要
利用瑞雷面波的频散特性,在地表科学、快速、准确地测试出有效地质信息是可行的一种方法手段。本文介绍了以实测瞬态瑞雷波数据为基础,通过采用遗传算法全局非线性反演处理,对比钻探获取的地质信息,凸显了瑞雷波在工程勘察中查明地层速度、覆盖层厚度及重要地质现象(充填型溶洞、串珠状溶洞、碳质岩等)所取得的实际效果,并从瑞雷波曲线特征(频散特性、"之"字形拐点和曲率变化的位置)及反演真速度的大小等物性参数的角度出发,提出了瑞雷波分析的几个具体依据,强调了在应用瑞雷波法过程中需要重视的几个方面。
With the characteristics of the Rayleigh wave dispersion,it is an effective method to get the geological information in the rapid and accurate surveying.In this paper,based on the actual measured data of transient Rayleigh wave,genetic algorithms nonlinear inversion processing method is adopted to compare the geological information obtained by drilling so as to reveal effective results of formation velocity,covering thickness and other important geological phenomena such as filling cave,beaded cave,carbonaceous rocks and etc.in the Rayleigh wave engineering surveying.From the characteristics of Rayleigh curve and physical parameters of the true velocity inversion,some basic points of Rayleigh wave analysis are raised and some aspects are emphasized in the Rayleigh wave method processing.
With the characteristics of the Rayleigh wave dispersion,it is an effective method to get the geological information in the rapid and accurate surveying.In this paper,based on the actual measured data of transient Rayleigh wave,genetic algorithms nonlinear inversion processing method is adopted to compare the geological information obtained by drilling so as to reveal effective results of formation velocity,covering thickness and other important geological phenomena such as filling cave,beaded cave,carbonaceous rocks and etc.in the Rayleigh wave engineering surveying.From the characteristics of Rayleigh curve and physical parameters of the true velocity inversion,some basic points of Rayleigh wave analysis are raised and some aspects are emphasized in the Rayleigh wave method processing.
引文
[1]李凯.面波探测技术在工程勘察中的应用进展[J].工程地球物理学报,2011,8(1):97~99.
[2]陈洪杰.面波技术在高铁临近既有铁路路基检测中的应用[J].工程地球物理学报,2012,9(1):17~20.
[3]陆晓春,龚育龄.综合物探在防汛墙抛石探测中的应用[J].工程地球物理学报,2013,10(2):180~185.
[4]胡绕.综合物探方法在浅基岩地区顶管工程勘察中的应用[J].工程地球物理学报,2013,10(3):425~429.
[5]肖柏勋.瑞雷面波勘探技术述评[J].工程地球物理学报,2004,1(1):38~47.
[6]黄真萍,刘振干.瞬态振动法瑞雷面波采集质量的探讨与分析[J].物探与化探,2005,29(2):180~181.
[7]崔占荣,张世洪,张俊喻.瞬态瑞雷波探测中一些问题的讨论[J].物探与化探,1995,19(5):369~377.
[8]刘雪峰,凡友华.Rayleigh波探测中“之”字形频散曲线“起跳点”频率研究[J].地球物理学报,2011,54(8):2124~2135.
[9]张碧星,肖柏勋,杨文杰,等.瑞利波探测中“之”形频散曲线的形成机理及反演研究[J].地球物理学报,2000,43(4):558~565.
[10]JGJ/T 143-2004多道瞬态面波勘察技术规范[S].北京:中国建筑工业出版社,2004.
[11]TB 10013-2010铁路工程物理探测规范[S].北京:中国铁道出版社,2010,29~30.
[12]何樵登.地震探测原理和方法[M].北京:地质出版社,1986,43~46.
[2]陈洪杰.面波技术在高铁临近既有铁路路基检测中的应用[J].工程地球物理学报,2012,9(1):17~20.
[3]陆晓春,龚育龄.综合物探在防汛墙抛石探测中的应用[J].工程地球物理学报,2013,10(2):180~185.
[4]胡绕.综合物探方法在浅基岩地区顶管工程勘察中的应用[J].工程地球物理学报,2013,10(3):425~429.
[5]肖柏勋.瑞雷面波勘探技术述评[J].工程地球物理学报,2004,1(1):38~47.
[6]黄真萍,刘振干.瞬态振动法瑞雷面波采集质量的探讨与分析[J].物探与化探,2005,29(2):180~181.
[7]崔占荣,张世洪,张俊喻.瞬态瑞雷波探测中一些问题的讨论[J].物探与化探,1995,19(5):369~377.
[8]刘雪峰,凡友华.Rayleigh波探测中“之”字形频散曲线“起跳点”频率研究[J].地球物理学报,2011,54(8):2124~2135.
[9]张碧星,肖柏勋,杨文杰,等.瑞利波探测中“之”形频散曲线的形成机理及反演研究[J].地球物理学报,2000,43(4):558~565.
[10]JGJ/T 143-2004多道瞬态面波勘察技术规范[S].北京:中国建筑工业出版社,2004.
[11]TB 10013-2010铁路工程物理探测规范[S].北京:中国铁道出版社,2010,29~30.
[12]何樵登.地震探测原理和方法[M].北京:地质出版社,1986,43~46.
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