【摘要】 以广明高速公路K54+300～K54+560区段路基沉陷工程物探为例,介绍采用高密度电法、等偏移距反射波法及多道瞬态面波法,勘探公路路基沉陷的方法技术。通过对各方法勘探成果综合分析,达到了勘探目的。本次工程物探表明,综合物探方法在划分岩溶发育不稳定区、软土的分布区域及路基的沉陷勘探等方面,具有快速、经济和成果直观的特点。本文同时分析了路基沉陷产生的原因。更多还原

【Abstract】 In this paper,taking the roadbed sink of Guangming speedway from K54+300 to K54+560 as an example,it introduces high-density resistivity,equal offset reflection method,multi-channel transient surface wave method and the technical method of exploring roadbed sink.The geophysical engineering exploration shows that the method has the characteristics of being rapid,economical and direct in dividing the unstable areas of karst development,distribution of soft soil and roadbed sink exploration.This paper also analyzes the cause of the roadbed sink.Moreover,we attained the exploration goal through synthetically analyzing the explorative data.This work of engineering geophysical exploration showed that synthetically geophysical exploration methods with some aspects plotting the erratic area of karst,the distribution of soft soil and the exploration of roadbed sink are of the characters that data collection is quick and economical,and the fruit is intuitionistic.更多还原