摘要
膨胀岩主要为第三系的黏土岩、泥灰岩，膨胀土主要为第四系Q2和Q3的粉质黏土、黏土及重粉质壤土。膨胀岩（土）主要矿物成分为蒙脱石和伊利石，特点为遇水膨胀、失水收缩开裂、抗风化能力差、抗剪强度低，渠道通过处稳定性差，易在外力作用下产生蠕动和滑坡。2010年9月1日南水北调中线一期工程总干渠安阳段第二施工标段因对膨胀岩渠段处理不到位发生边坡失稳事件，导致原施工渠道内部分已衬砌混凝土面板损毁，部分已填筑未衬砌渠堤失稳。根据影响膨胀岩（土）处理措施的因素建立层次结构模型，应用层次分析法得出结论，为选用经济合理的处理措施提供参考依据，确保膨胀岩（土）渠段安全稳定。
Swelling rocks are mainly the Tertiary clay rocks and marl. Swelling soils are mainly the Quaternary Q2 and Q3 silky clay, clay and heavy silt loam. The main mineral components of the swelling rock （soil） are the Montmorillonite and Illite, which characters are swelling when meeting water, cracking when losing water, poor ability of anti-weathering, low shear strength, poor stability, easy to produce slide. At Septem- ber 1,2010, due to the not suitable treatment measures o{ Anyang second construction tenders in the main channel in middle route proiect of south-to-north water diversion, the concrete of the channel was slide. According to the factors which influenced the stability of the main chan- nel,we establish a hierarchical model;use the AHP to make a conclusion and provide reference for selecting the economical and reasonable measures to make sure the channel stability.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2014年第B01期142-145,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
南水北调
膨胀岩(土)
层次分析法
结构模型
处理措施
安全稳定
经济合理
South-to-North Water Diversion Project
swelling rock （soil）
Analytical Hierarchy Process
syntactic model
treatment measures
safety and stability
economical and reasonable
