常德市地下空间开发利用综合地质影响因素分析

Analysis of comprehensive geological influencing factors on development and utilization of underground space in Changde

城市地下空间开发利用是当前城市可持续发展的需要,合理的开发利用能够拓展城市发展空间,改善城市居住环境,但不良地质因素严重制约着城市地下空间的开发和利用。为查明常德市地下空间的开发和利用综合地质影响因素,在收集大量的工程勘察资料及本次城市地质调查工作成果的基础上,通过对区内地形地貌、活动断裂、工程地质条件、水文地质条件等地质因素的分布特征及可能造成的影响的研究,结果表明区内总体地质情况较好,低山-丘陵地貌、活动断裂主要集中在北部,开发成本高,适宜性差,不适于城市地下空间的开发利用;在沅江两岸平原区、南部低缓丘陵区适宜城市地下空间开发利用,开发前景广阔。在适宜区城市地下空间开发利用重点需解决好复杂水文地质条件、软土及砂土液化层综合地质影响因素带来的影响,并针对性提出了防治措施及建议,为常德市地下空间资源开发利用提供科学依据。

The development and utilization of urban underground space is necessary in urban sustainable development.Scientific development and utilization can expand development space and improve urban living environment.But some geological factors seriously restrict the development and utilization of urban underground space.In order to find out the comprehensive geological factors affecting the development and utilization of underground space in Changde,from a large number of engineering survey data and urban geological survey,the distribution characteristics and possible geological factors,such as topography,active faults,engineering geological conditions and hydrogeological conditions in the area,are studied.The results show that the low mountain-hill landform and active faults are mainly concentrated in the north.The development cost is high and the suitability is poor,in the development and utilization of urban underground space.The plain areas on both sides of the Yuanjiang River and the low and hilly areas in the south are suitable for the development and utilization of urban underground space.It is suggested to solve the influence of complex and comprehensive geological factors,so as to provide scientific development and utilization of underground space resources in Changde.