摘要
受多种因素的影响,多年冻土区工程地质环境比较复杂,冻融灾害严重影响了管道稳定性,因此深入探究不良地质环境形成的原因对中俄原油管道建设及安全运营是必不可少的。根据实地勘测数据资料,采用突变级数法,系统研究了影响冻土地质环境的冻土热稳定性、大气温度及海拔高程等因素,依据突变模型,采用指标分级建立理想、良好、一般、较差和恶劣5个等级,综合评价了中俄原油管道沿线冻土工程地质环境,研究了管线冻土工程地质环境。综合分析表明,大气温度与海拔高程同冻土工程地质环境拟合度较高。
The engineering geological environment in permafrost region is complex,and the freezing-thawing disaster seriously affects the stability of pipelines.Therefore,it is essential for the construction and protection of China-Russia crude oil pipeline to deeply explore the causes of the formation of adverse geological environment.According to the field survey data,using the method of mutation progression,from permafrost thermal stability and the natural environment influence factors of geological environment of permafrost,according to mutation model index classification is adopted to establish the ideal,good,general,poor and bad five grades,the comprehensive evaluation of the China-Russia crude oil pipeline along the frozen soil engineering geological environment.It is found that the engineering geological environment of frozen soil is the general state type.Finally,through comprehensive analysis,the fitting degree of natural environment and engineering geological environment of frozen soil is high.
作者
刘利骄
杨雪
柳艳杰
胡争
丁琳
LIU Li-jiao;YANG Xue;LIU Yan-jie;HU Zheng;DING Lin(Heilongjiang University School of Civil Engineering;Heilongjiang University School of Hydraulic and Electric Power,Harbin 150080,China)
出处
《水利科技与经济》
2022年第8期1-7,共7页
Water Conservancy Science and Technology and Economy
基金
国家自然科学基金项目(N0.41071049)
冻土工程国家重点实验室开放基金资助项目(SKLFSE201919)。
关键词
中俄管线
多年冻土
突变级数
工程地质环境
冻土评价
China-Russia crude oil pipeline
permafrost
sudden change progression
engineering geological condition
evalution of permafrost
