地质雷达在岩溶地区岩土工程勘察中的应用

安徽省沿江及皖南一带石灰岩分布广泛，岩溶发育，由于岩溶溶洞具有隐伏性强、空间分布规律性差、岩溶塌陷难以预测等特点，因此岩溶区岩土工程勘察必需查清岩溶发育规律。本文结合铜陵一带岩溶区岩土工程勘察中几个实例，阐述在岩溶发育区，采用地质雷达结合钻探综合勘察方法，高效准确查清构筑物基础范围内岩溶溶洞发育情况，提高岩溶区勘察效益和勘察进度。

APPLYING GPR ON THE GEOTECHNICAL INVESTIGATION IN THE KARST AREA

There are limestone and Karst cave widely distributing along the Yangzhi river rearch and south part of Anhui province. Because of the karst cave being cover-up, no rule in space distributing, and difficulty to forecast the subside disaster. It＇s very important to prospect the karst cave underground. With the example of the exploration in Tongling area, this paper expounds applying the GPR and drilling comprehensive geophysical exploration method that has incommensurable advantage, also convenience, economy and credible to make clear distribution of cave in the structure foundation range in the karst area.