深层搅拌桩强度的影响因素与改善措施

INFLUENCE FACTORS ON STRENGH OF DEEP-MIXING PILE AND IMPROVEMENT MEASURE

影响深层搅拌桩强度的主要因素为水泥实际掺入比、养护龄期、土样含水量、土体搅拌均匀程度、复搅深度是否合理、外加剂选择是否合适、土体围压和水泥强度等级等。通过分析这些影响因素,探讨了提高深层搅拌桩桩体强度和单桩承载力的方法。

The main influence factors on strength of deep-mixing pile are the actual ratio of cement to soil,curing time of cement,water content of soil,homogeneity degree of cement-soil,mixing depth,additive confining pressure of soil,and cement strength. All the influence factors are analyzed and available measure is proposed to improve the bearing capacity of single pile and the strength of deep-mixing pile .