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针对津汕高速公路盐渍土路基处治工程,通过室内试验分析了公路路基不同深度氯盐渍土的物理力学及化学性质。进行了大量水泥固化盐渍土室内试验,分析了水泥掺入量、龄期、含盐量和试验加荷速率等对水泥固化盐渍土抗压强度的影响规律,初步探讨了水泥加固盐渍土的机理,分析了水泥土搅拌桩在盐渍土路基处理中应用的可能性,为盐渍土地区公路路基水泥搅拌桩处理技术的设计和施工提供依据。
Aimed at the treatment of saline soil subgrade in Jin-Shanshan Expressway, the physical and chemical properties of chlorinated saline soils at different depths are analyzed through laboratory tests. A large amount of cement-cured saline soil was tested in laboratory. The effects of cement content, age, salt content and test loading rate on the compressive strength of cement-cured saline soil were analyzed. Soil mechanics, analyzes the possibility of application of cement-soil mixing piles in the treatment of saline soil subgrade, and provides the basis for the design and construction of cement-mixing piles treatment technology for highway subgrade in saline soil area.