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荆南长江干堤位于长江中游荆江河段南岸,上起查家月堤,下至石首市五马口,与湖南长江干堤相连,是湖北省松滋市、荆州市、公安县、石首市和湖南华容县等两省五市的重要防洪工程。堤身填土有粉质壤土、粉质粘土和沙壤土组成,局部夹粉细沙,土体不均一,密度偏低,局部含腐植物及砖瓦碎片,该堤段内普遍存在散浸,局部发生管涌、崩岸等重大险情,主要工程地质问题为渗透与渗透变形及岸坡稳定问题,因此该堤段加固措施采用深层搅拌水泥土防渗墙。
Jingnan Yangtze River embankment is located in the middle reaches of the Yangtze River Jingjiang River on the southern bank, on the Cha from the month embankment, down to Shishou City Wumakou, and the Yangtze River in Hunan dry embankment, Hubei Province, Songzi City, Jingzhou City, Gong’an County, stone The first city and Hunan Huarong County and other provinces and five major cities flood control project. Embankment filled with silty loam, silty clay and sandy loam composition, the local folder powder sand, soil heterogeneity, low density, partial embalming plants and brick fragments, the embankment section of the prevalence of dipping, local Occurrence of major accidents such as piping and bank collapse. The main engineering geological problems are infiltration and infiltration deformation and stability of bank slope. Therefore, the deep-seated cement-soil cutoff wall is adopted for the reinforcement measures of the bank section.