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采用石灰(CH)、水泥(PC)和石灰+水泥(PC+CH)作为稳定剂稳定海相土,对各稳定土进行室内无侧限抗压强度、水稳性能和抗冻融性能测试,以探讨不同稳定剂稳定海相土的效果。试验结果表明,PC+CH稳定海相土强度最高,PC稳定土次之,CH稳定土强度最低。PC+CH稳定海相土的水稳性能最优,各龄期下水稳系数均大于0.95,而PC稳定土水稳性最差,水稳系数均小于0.6。PC+CH稳定海相土的抗冻融性能最优,30次冻融循环后稳定土强度下降23%,而CH稳定土抗冻融性能极差,30次冻融循环后稳定土强度下降100%。因此,PC+CH作为稳定剂比其余两种稳定剂更适用于海相土的稳定,PC+CH稳定海相土可作为路基填料使用。
The stabilized marine soil was stabilized with lime (CH), cement (PC) and lime + cement (PC + CH) as stabilizer. Unconfined compressive strength, water stability and anti- To explore the different stabilizers to stabilize the effect of marine soil. The experimental results show that PC + CH has the highest strength of marine stable soil, PC stabilized soil and CH stabilized soil. The stability of PC + CH marine stabilized soils was the best, and the stability coefficients of water under all ages were greater than 0.95, while the stability of PC stabilized soil was the worst. The water stability coefficients were all less than 0.6. PC + CH stabilized marine soils had the best anti-freeze-thaw behavior, the strength of stabilized soils decreased by 23% after 30 freeze-thaw cycles, while the stability of CH stabilized soils was very poor. After 30 freeze-thaw cycles, the strength of stabilized soils decreased by 100 %. Therefore, PC + CH as stabilizer is more suitable for the stabilization of marine soils than the other two stabilizers. PC + CH stabilized marine soils can be used as subgrade filler.