面波勘探和台阵地脉动观测相结合的地基调查法及其在松江古照壁保护中的应用

上海交通大学学报（自然版） ›› 2013, Vol. 47 ›› Issue (10): 1557-1561.

面波勘探和台阵地脉动观测相结合的地基调查法及其在松江古照壁保护中的应用

陈梦a,b，冯少孔a，车爱兰a,b，喻春平a

(上海交通大学 a. 船舶海洋与建筑工程学院；b.海洋工程国家重点实验室，上海 200240)

收稿日期:2012-09-14 出版日期:2013-10-30 发布日期:2013-10-30
基金资助:
海洋工程国家重点实验室青年创新基金资助项目(GKZD01005925)

Application of Geo-Investigation to Songjiang Ancient Wall Based on Surface Wave Survey and Array Microtremor Observation

CHEN Menga,b,FENG Shaokonga,CHE Ailana,b,YU Chunpinga

(a.School of Naval Architectural, Ocean and Civil Engineering; b. State Key Laboratory of Ocean Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2012-09-14 Online:2013-10-30 Published:2013-10-30

摘要/Abstract

摘要：

通过对高密度面波勘探和台阵地脉动勘探的频散分析算法的理论分析，推导出了2种勘探数据频散分析目标函数的统一表达式.根据该结果，用加权函数将2个目标函数结合起来，联合分析2种数据得到一条由高频到低频的完整的频散曲线；反演该频散曲线就可得到由地表到大深度的地下构造.将该方法应用于松江古照壁文物保护之地基勘查，为建立地震响应分析模型提供了由地表到40 m深处的横波速度构造.该方法是一种简便快速并兼顾浅层精度和勘探深度的工程地质调查方法.

关键词: 地基勘察, 高密度面波勘探, 台阵地脉动勘探, 频散分析, 地下构造, 古建筑保护

Abstract:

This paper discussed the algorithms of dispersion analysis for both high density surface wave survey and array microtremor observation and derived a unified expression of objective function for dispersion analysis. This unified expression made it possible us to joint analyze the two kinds of exploration data to obtain dispersion data from high frequency to low frequency, and estimate the shear wave velocity structure from the surface to depth by dispersion inversion. This method was applied to the geo-investigation of Songjiang Ancient Wall. The survey result provides a subsurface structure model to 40 m deep for earthquake response analysis, and proves that this method is simple and rapid, with good resolution and deep survey depth.

Key words: geo-investigation, high density surface wave survey, array microtremor observation, dispersion analysis, subsurface structure, conservation of ancient architecture

中图分类号:

TU 195

陈梦a,b，冯少孔a，车爱兰a,b，喻春平a. 面波勘探和台阵地脉动观测相结合的地基调查法及其在松江古照壁保护中的应用[J]. 上海交通大学学报（自然版）, 2013, 47(10): 1557-1561.

CHEN Menga,b,FENG Shaokonga,CHE Ailana,b,YU Chunpinga. Application of Geo-Investigation to Songjiang Ancient Wall Based on Surface Wave Survey and Array Microtremor Observation[J]. Journal of Shanghai Jiaotong University, 2013, 47(10): 1557-1561.