天津滨海新区地下空间规划地质环境影响因素分析和评价方法研究

发布时间：2018-06-27 23:36

本文选题：地质环境 + 影响因素分析　；参考：《中国地质大学（北京）》2014年硕士论文

【摘要】：地下空间作为一种有限不可再生性资源，其合理开发利用显得尤为重要。天津滨海新区依托北京、天津两大直辖市，拥有最具潜力的消费市场和最完善的城市配套设施，拥有无限的发展机遇，随着天津滨海新区被列入国家发展战略，大规模的开发建设活动迅速开展起来，使得土地资源的供需矛盾进一步凸显出来，而如何合理充分的开发利用地下空间资源，减少或防范因不合理开发可能引起的工程及环境地质问题成为当前天津滨海新区开发建设的一项重要任务。根据国内外对地下空间开发利用经验结合天津滨海新区的地质环境条件及规划建设方向，分析地下空间建设开发深度主要集中于地表以下30m内的浅层和次浅层，分析未来地下空间开发建设的特点和方向主要包括三个，即地下交通线逐步实现网络化；城市地下管网综合化；地下设施综合化、互通化。据此，对地下空间开发工程根据按工程特点和深度进行分类，大体可分为明开挖的给排水等地下管网形式的线工程（埋深一般小于5m）、非明开挖及时支护的城市地下交通隧道形式的线工程（埋深一般8-25m）、明开挖基坑形式的点工程（埋深一般30m以浅）三类。本文分别对上述三类工程按照施工过程中和运行期间可能产生的工程地质问题进行了分析，分别确定了可能影响三类不同工程建设和运营期间安全的地质环境因素，在结合天津滨海新区地质环境特点的基础上，进行了地质环境影响评价因素选取，并在评价要素选取的基础上采用综合指数法、层次分析法和模糊数学法三类常用评价模型进行评价，，最后综合天津滨海新区地下空间开发工程中出现的问题和地段情况对评价成果进行了对比验证分析，最终确定在天津滨海新区进行三类不同工程类型规划和建设时适宜选取的评价要素和评价模型。
[Abstract]:As a limited non-renewable resource, it is very important to develop and utilize underground space reasonably. Relying on Beijing and the two municipalities directly under the Central Government of Tianjin, Tianjin Binhai New area has the most potential consumer market and the most perfect urban facilities, with unlimited development opportunities. As Tianjin Binhai New area is listed in the national development strategy, Large-scale development and construction activities have been carried out rapidly, which makes the contradiction between supply and demand of land resources more prominent, and how to develop and utilize underground space resources reasonably and fully, It is an important task to reduce or prevent the engineering and environmental geological problems caused by unreasonable development in Tianjin Binhai New area. According to the experience of exploitation and utilization of underground space at home and abroad, combined with the geological environment conditions and planning and construction direction of Tianjin Binhai New area, it is analyzed that the depth of underground space construction and development is mainly concentrated in shallow and sub-shallow layers within 30 meters below the surface of the earth's surface. This paper analyzes the characteristics and direction of the development and construction of underground space in the future, which includes three aspects: the gradual realization of the network of underground traffic lines, the integration of urban underground pipe networks, and the integration and interoperability of underground facilities. Accordingly, the underground space development projects are classified according to the characteristics and depth of the project. It can be divided into underground pipeline works (buried depth is less than 5m), urban underground traffic tunnel type (8-25m) and excavation foundation pit type (buried depth is 8-25m), which can be divided into underground pipeline works (buried depth is usually 8-25m) and underground pipe network (buried depth is usually less than 5m), which is not supported by urban underground traffic tunnel (8-25m). Cheng (the depth of burying is generally 30 m to shallow) three types. In this paper, the engineering geological problems that may arise during the construction and during the operation of the three types of projects are analyzed, and the geological environmental factors which may affect the safety of the construction and operation of the three kinds of different projects are determined. Based on the characteristics of geological environment in Tianjin Binhai New area, the factors of geological environmental impact assessment are selected, and the comprehensive index method is adopted on the basis of the selection of evaluation elements. Analytic hierarchy process (AHP) and fuzzy mathematics are used to evaluate the evaluation results. Finally, the problems in the underground space development project of Binhai New area in Tianjin and the location situation are compared and verified. Finally, the suitable evaluation elements and evaluation models for the planning and construction of three different types of projects in Tianjin Binhai New area are determined.
【学位授予单位】：中国地质大学（北京）
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU984.113;X141

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