川西高原湿地软土工程地质特性与空间分布研究——以久马高速沿线为例  

作　　者：梁小龙 牟宝磊 熊海彬 李哲 黎子枫 吕世鑫 单永体[3] 

机构地区：[1]四川久马高速公路有限责任公司,四川阿坝624000 [2]长安大学,西安710064 [3]中交第一公路勘察设计研究院有限公司,西安710075

出　　处：《科技创新与应用》2024年第33期76-81,共6页Technology Innovation and Application

基　　金：四川省交通运输科技项目(2019-ZL-19)。

摘　　要：川西高原湿地区域性沼泽相软土的工程特性与滨海相河湖相软土不同,缺乏相关资料,成为高速公路建设的重要岩土工程问题。该文以久马高速沿线软土为例,在明确4种软土的区域性分布规律基础上,通过勘探钻孔取样,开展土工试验研究,厘定各种软土的关键物理力学参数取值,针对各个物理力学强度指标的线性相关性进行分析并建立拟合公式。研究结果能够为川西高原工程建设中的软土物理力学参数提供参考,为软土地基处理方法的选择提供依据,具有明确的工程实际意义。The engineering characteristics of the regional swampy soft soil in the western Sichuan Plateau wetlands are different from those of the coastal river and lake soft soil.The lack of relevant data has become an important geotechnical engineering problem in highway construction.Taking the soft soil along the Jiuma Expressway as an example,on the basis of clarifying the regional distribution laws of the four types of soft soils,conducting geotechnical test research through exploration and drilling sampling,determining the values of key physical and mechanical parameters of various soft soils,and analyzing the linear correlation of each physical and mechanical strength index and establishing a fitting formula.The research results can provide reference for the physical and mechanical parameters of soft soil in the engineering construction of the Western Sichuan Plateau,and provide a basis for the selection of soft soil foundation treatment methods,and have clear practical engineering significance.

关 键 词：高原软土 工程特性 分布特征 物理力学指标 相关性分析 

分 类 号：TU447[建筑科学—岩土工程]