地上地下工程建设地质环境适宜性一体化评价——以连云港城市规划区为例  

Integrated evaluation of the suitability of geological environment for above-ground and underground engineering construction——Taking the urban planning area of Lianyungang City as an example

作　　者：苟富刚[1] 李明亮[1] 欧健[1] 顾春生 蔡田露[1] 毛磊[1] GOU Fugang;LI Mingliang;OU Jian;GU Chunsheng;CAI Tianlu;MAO Lei(Geological Survey of Jiangsu Province,Key Laboratory of Earth Fissures Geological Disaster,Ministry of Natural Resources,Nanjing,210049)

机构地区：[1]江苏省地质调查研究院,自然资源部地裂缝地质灾害重点试验室,南京210049

出　　处：《地质论评》2023年第1期396-409,共14页Geological Review

基　　金：江苏省自然资源厅、连云港市人民政府项目连云港城市地质调查(编号:20170821);中国地质调查局,江苏省人民政府项目江苏沿海地区综合地质调查(编号:20120223)的成果。

摘　　要：工程建设地质环境适宜性评价是国土空间规划编制的基础。以江苏连云港城市规划区为例,探索地上地下工程建设适宜性一体化评价指标体系和方法。一体化评价是一个空间综合决策问题,涉及多个层次多种因素。借鉴经济领域的负面清单模式,基于自然因素的负面清单建立一体化评价指标体系。一体化评价地上和地下评价指标差异性较为明显,地上评价考虑地形坡度、地基承载力、桩基埋深等11因素,而地下空间评价则不考虑地形坡度、桩基埋深等因素。基于层次分析法与熵权系数法的综合评价方法来确定评价指标的权重,采用GIS平台采用多目标线性加权函数模型进行了工程建设一体化分区评价。评价结果显示:工程建设适宜性好区和较好区分布广泛,占比73.94%~93.22%。随着竖向深度增加,地下空间开发地质适宜性好的区域面积显著增加。地上空间适宜性主要受软土、腐蚀性土及地质灾害影响。浅层(0~15 m)地下空间开发地质适宜性主要受浅埋厚层软土的影响,地下空间开发面临软土变形的风险。次浅层(15~30 m)与次深层(30~50 m)地下空间开发地质适宜性主要受砂层涌水量和岩土结合面的影响。从评价结果看,地下空间工程建设适宜性优于地上,建议地下空间分为3个竖向分层进行开发,充分开发利用15 m以浅的地下空间,超前规划次浅层与次深层地下空间,工程建设应尽量避开适宜性一般区和差区。适宜性好区和较好区国土空间规划编制时应着重考虑。The evaluation of the suitability of the geological environment for engineering construction is the basis for the preparation of territorial spatial planning. Take Lianyungang as an example to explore the integrated evaluation index system and method for the suitability of above-ground and underground engineering construction. Integrated evaluation is a spatially integrated decision-making problem, involving multiple factors at multiple levels. Drawing on the negative list model in the economic field, an integrated evaluation index system is established based on the negative list of natural factors. The difference is more obvious between above-ground and underground evaluation indexes of integrated evaluation. The above-ground evaluation considers 11 factors such as terrain slope, foundation bearing capacity and pile depth, while the underground space evaluation does not consider factors such as terrain slope and pile depth. Based on the comprehensive evaluation method of hierarchical analysis and entropy weighting coefficient method to determine the weight of evaluation index, the multi-objective linear weighting function model using GIS platform was used to carry out the integrated regional evaluation of engineering construction. The evaluation results show that: the areas of good and better engineering construction suitability are widely distributed, accounting for 73.94%~93.22%. With the increase of vertical depth, the area of the areas with good geological suitability for underground space development increases significantly. The suitability of above-ground space is mainly affected by soft and corrosive soils and geological hazards. The geological suitability of underground space development in the shallow layer(0~15 m) is mainly affected by the s shallow-buried thick layer of soft soil, and the underground space development faces the risk of soft soil deformation. The geological suitability of underground space development in the sub-shallow layer(15~30 m) and the sub-deep layer(30~50 m) is mainly influence

关 键 词：城市地质 地质环境 适宜性 建设用地 负面清单 一体化评价 

分 类 号：TU984[建筑科学—城市规划与设计]