水泥加固处理泥炭土性能的试验研究

Experimental Study on Treatment of Peat Soil Performance by Cement Reinforcement

以水泥搅拌桩加固处理昆明铁路枢纽泥炭土路基工程为背景,介绍了滇池泥炭土地基的工程特性,通过压实试验、无侧限抗压强度试验,研究了工点水泥泥炭土在不同水泥掺量下的最佳含水率、最大密实度、无侧限抗压强度,讨论了初始含水率、密实度、龄期对水泥泥炭土无侧限抗压强度的影响,为工程实际提供了重要的参考数据。

Taking the engineering of peat soil subgrade for railway hub in Kunming reinforced by cement mixing piles as an example, the engineering properties of peat soil foundation in Dianchi was introduced. Then through compaction test and unconfined compressive strength test, the optimum water content, the maximum compactness and the unconfined compressive strength of the cement-peat soil under different cement contents on the construction site were studied; then, the effects of initial water content, compactness and concrete age on the unconfined compressive strength of cement reinforced peat soil were discussed. The results can be taken as important reference to actual enzineerin~.