摘要
水泥搅拌桩复合地基是加固软土地基最有效的方法之一。水泥搅拌桩在复合地基中能够起到集中应力、降低沉降的作用。通过大量室内试验研究,结果表明,水泥搅拌桩桩身强度随着水泥掺入比的增大而增强,随着龄期的增长呈幂指数的方式增大,受水灰比的影响较小;实体工程研究表明,水泥搅拌桩桩身强度随加固深度的增加而减小,其强度为软土的近10倍,能够有效提高软土地基的强度。
Cement mixing pile composite foundation is one of the most effective approaches to reinforce soft clay ground. Cement mixing pile composite Foundation can play a role of concentrating stress, reducing settlement, cushion and reinforcement. Experimental studies showed that the strength of cement mixing pile increases along with the amount of cement increases, and increases in a way of exponent along with the growth of age, but less affected by the watercement ratio; Physical work study showed that the strength cement mixing pile is nearly 10 times of soft soil and it decreases along with the reinforcement depth increases, also proved that cement mixing pile can effectively improve the strength of soft soil foundation.
出处
《北方交通》
2014年第8期49-52,共4页
Northern Communications
关键词
水泥搅拌桩
软土地基
无侧限抗压强度
Cement mixing pile
Soft soil foundation
Unconfined compressive strength
