基于信息量法的黔中岩溶区地下空间利用适宜性评价

在分析贵安新区花溪大学城典型岩溶区地质环境条件基础上，提出了地下空间利用地质模型，建立了地下空间利用适宜性评价体系和评价方法，采用专家-层次分析法确定了地下空间利用影响因子权重，利用ArcGIS平台实现了研究区分层地下空间利用适宜性评价。评价结果表明：采用的专家-层次分析法、多目标线性加权函数法及ArcGIS平台空间分析相结合的方法开展典型岩溶区地下空间利用适宜性评价，评价方法和评价结果合理可靠，具有较强的应用性和推广性；研究区半地下、浅层、次浅层适宜地下空间利用面积占比分别为75.51%、67.02%、53.78%,地下空间开发利用主要受断裂构造、岩石破碎程度、岩溶发育、地下水埋藏条件控制，研究区在垂向上从上到下开发利用难度逐步增大。评价结果为花溪大学城典型岩溶区地下空间利用规划、地质环境问题工程处置、合理有效利用地下空间资源、保护生态环境提供了科学依据。

Suitability evaluation of underground space utilization in karst area of Qianzhong based on GIS and APH

Based on the analysis of the geological environment conditions in the typical karst area of Huaxi University City in Gui''an New Area, a geological model of underground space utilization was proposed, suitability evaluation system and method of underground space utilization were established, the weights of the factors influencing underground space utilization were determined by the expert-hierarchical analysis method, and the suitability evaluation of underground space utilization in the study area was realized by using ArcGIS platform. The evaluation results show that: (1) The expert-hierarchical analysis method and the multi-objective linear weighting function method were used to determine the evaluation factor weights, and the ArcGIS platform was used to evaluate the suitability of underground space utilization in the study area. Evaluation methods and evaluation results are reasonable and reliable, with strong applicability and promotability. (2) The proportion of suitable underground space utilization area in the study area is semi-subterranean 75.51%, shallow 67.02%, and sub-subterranean53.78%. Underground space development and utilization are mainly controlled by fracture structure, rock fragmentation, karst development, groundwater burial conditions, and the study area, the difficulty of development and utilization from top to bottom gradually increases. (3) The evaluation results provide a scientific basis for the planning of underground space utilization in the typical karst area of Huaxi University City, engineering disposal of geological environmental problems, reasonable and effective utilization of underground space resources, and protection of ecological environment.