气候变化领域集成服务门户(CCPortal): Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions

CCPortal

DOI	10.1155/2022/7652371
	Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions
	Wang, Honglei; Zhang, Hu; Chai, Mingtang; Zhang, Jianming; Sun, Zhizhong; Li, Guoyu
通讯作者	Zhang, H (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	1687-8086
EISSN	1687-8094
卷号	2022
英文摘要	Characterized by low bearing capacity and high compressibility, warm and ice-rich frozen soil is a kind of problematic soil, which makes the original frozen ground formed by of that unreliable to meet the stability requirements of engineering infrastructures and foundations in permafrost regions. With the design and construction of major projects along the Qinghai-Tibet Engineering Corridor (QTEC), such as expressway and airport runway, it is a great challenge to favor the stability of overlying structures by formulating the proper engineering design principles and developing the valid engineering supporting techniques. The investigations carried out in recent years indicated that warm and ice-rich permafrost foundations were widespread, climate warming was significant, and the stability of existing engineering structures was poor, along the QTEC. When the warm and ice-rich frozen ground is used as the foundation soil, the implementation of ground improvement is an alternative measure to enhance the bearing capacity of foundation soil and eliminate the settlement of structures during operation, in order to guarantee the long-term stability of the structures. Based on the key factors determining the physicomechanical properties of frozen soil, an innovative idea of stabilizing the warm and ice-rich frozen soil based on chemical stabilization is proposed in this study, and then, an in situ ground improvement technique is introduced. This study intends to explore the feasibility of ground improvement in warm and ice-rich permafrost regions along the QTEC based on in situ chemical stabilization and provide the technical support and scientific reference to prevent and mitigate the hazards in the construction of major projects in the future.
关键词	CALCIUM SULFOALUMINATE CEMENT QINGHAI-TIBET HIGHWAY FROZEN SOIL COMPRESSIVE STRENGTH IONIC SOIL EMBANKMENT STABILIZATION PERFORMANCE DURABILITY SETTLEMENT
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS记录号	WOS:000771096000006
来源期刊	ADVANCES IN CIVIL ENGINEERING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253860
作者单位	[Wang, Honglei; Zhang, Hu; Zhang, Jianming; Sun, Zhizhong; Li, Guoyu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Wang, Honglei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Chai, Mingtang] Ningxia Univ, Sch Civil & Hydraul Engn, Yinchuan 750021, Ningxia, Peoples R China; [Sun, Zhizhong; Li, Guoyu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Da Xinganling Observ & Res Stn Frozen Ground Engn, Jiagedaqi 165000, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Honglei,Zhang, Hu,Chai, Mingtang,et al. Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions[J]. 中国科学院西北生态环境资源研究院,2022,2022.
APA	Wang, Honglei,Zhang, Hu,Chai, Mingtang,Zhang, Jianming,Sun, Zhizhong,&Li, Guoyu.(2022).Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions.ADVANCES IN CIVIL ENGINEERING,2022.
MLA	Wang, Honglei,et al."Analysis of Necessity and Feasibility for Ground Improvement in Warm and Ice-Rich Permafrost Regions".ADVANCES IN CIVIL ENGINEERING 2022(2022).