昆明轨道交通4号线地质特征与应对措施  

The Geologic Features and Governance Measures for Kunming Rail Transit Line 4

作　　者：赵福玉[1] 刘伟[1] 张旭[1] 和佳良[1] 杨文辉[1] ZHAO Fuyu;LIU Wei;ZHANG Xu;HE Jiangliang;YANG Wenhui(Kunming Survey,Design and Research Institute Co.Ltd of CREEC,Kunming,Yunnan 650200,China)

机构地区：[1]中铁二院昆明勘察设计研究院有限责任公司,昆明650200

出　　处：《铁道工程学报》2022年第4期84-88,共5页Journal of Railway Engineering Society

摘　　要：研究目的:昆明盆地地质特征类型多样,地质条件复杂,对轨道交通工程建设影响很大。鉴于勘察范围有限,目前对该地区的地质特征分析研究多局限在点上,而针对昆明盆地各区域地质特征的全面性、对比性分析研究较少。本文研究昆明轨道交通4号线各区域地质特征和主要工程地质问题,以期为相关工程措施的采取提供依据。研究结论:(1)通过对4号线沿线地质条件分析,系统地研究了昆明盆地各微地貌区域的地质特征差异和主要工程地质问题;(2)结合工程方案及主要工程地质问题,对场地的稳定性、施工方案、围护结构及降排水、岩溶和地基处理、基坑抗浮和抗渗流等进行了分析,提出了应对措施;(3)本文研究对认识昆明盆地各区域的地质特征具有重要意义,对昆明轨道交通工程建设具有借鉴作用。Research purposes: The geological characteristics of the Kunming basin are various and the geological conditions are complex, which has a great influence on the construction of the rail transit engineering. Due to the limitation of the exploration area, the study on the geological characteristics of the area is limited to the point at present, while the comprehensive and comparative study on the geological characteristics of the Kunming basin is less. This paper studies the regional geological characteristics and main engineering geological problems of Kunming Rail Transit Line 4, and provides the basis for taking relevant engineering measures.Research conclusions:(1)Through the analysis of the geological conditions along Line 4, the differences of the geological characteristics and the main engineering geological problems of the micro-geomorphologic regions in the Kunming basin are systematically studied;(2)Combined with the engineering scheme and the main engineering geological problems, the stability of the site, construction scheme, retaining structure and drainage, karst and foundation treatment, anti-floating and anti-seepage of foundation pit are analyzed;(3)The paper is of great significance for understanding of the geological characteristics of the Kunming basin and can be used as a reference for the construction of the Kunming rail transit engineering.

关 键 词：昆明盆地 轨道交通4号线 地质特征 应对措施 

分 类 号：TU449[建筑科学—岩土工程]