石灰岩地区的工程建设中,经常遇到已发育形成或正在发育中的不良地质体,如土洞、溶洞和部分软土层,地基基础施工中首先要处理的就是这些不良地质体,因此地基处理前的施工勘察非常必要,而勘察过程中对土、溶洞(软土)的地质特征的理解及鉴定判别是关键所在,解决好洞体平面位置的圈定,洞体深度、洞体处理体积这些问题后,就可以在后期的地基处理施工中做到有的放矢。 Limestone area construction, often encountered in the development of the formation or development of poor geological body, such as soil holes, caves and some soft soil, foundation construction first to deal with these poor geological body, so the foundation treatment Before the construction survey is very necessary, and during the investigation of the soil, karst caves (soft soil) of the geological characteristics of the understanding and identification is the key to solve the problem of delineation of the hole plane location, depth of the cave, cave volume After that, it can be targeted in the late foundation construction.