新型土体固化剂加固土的力学性能研究  

Study on Mechanical Properties of Soil Stabilized by New Soil Curing Agent

作　　者：桂林 袁志刚 张建鹏 李德猛 顾杰 Gui Lin;Yuan Zhigang;Zhang Jianpeng;Li Demeng;Gu Jie(Suzhou Rail Transit Construction Co.,Ltd.,Suzhou 215004,China;CCDI(Suzhou)Exploration&Design Consultant Co.,Ltd.,Suzhou 215123,China)

机构地区：[1]苏州轨道交通建设有限公司,江苏苏州215004 [2]悉地(苏州)勘察设计顾问有限公司,江苏苏州215123

出　　处：《市政技术》2024年第2期35-39,共5页Journal of Municipal Technology

摘　　要：新型土体固化剂由水泥、矿渣、钢渣、石膏和外加剂等为原材料生产而成,通过室内配合比强度试验和现场取浆强度试验研究新型土体固化剂加固土的无侧限抗压强度。以苏州市某在建地铁车站工程场地内典型土层为例,探讨了不同土质、新型土体固化剂掺量以及养护龄期对加固土强度的影响,对试验数据进行了线性分析,得到了加固土强度与新型土体固化剂掺量、养护龄期成正相关关系。为进一步验证新型土体固化剂加固土的实际效果,在工程现场进行搅拌桩试桩并对桩体浆液取样试验,通过分析表明现场取浆强度试验结果与室内配合比强度试验结果较为一致。相关结论可为新型土体固化剂的使用提供借鉴。The new soil curing agent is produced from raw materials of cement,slag,steel slag,gypsum and admixture,the unconfined compression strength of the stabilized soil by new soil curing agent is studied by laboratory mixproportion strength test and on-site slurry strength test.Based on the typical soil layers of the existing project of a subway station in Suzhou,the effects of different soil quality,new soil curing agent content and curing age on the strength of the stabilized soil were discussed,the experimental data were linearly analyzed to obtain the positive correlation between the strength,the content and the curing age of the new soil curing agent.In order to further verify the actual effect of the new soil curing agent,the mixing pile was conducted on the project site and the pile slurry sampling test was carried out.It is showed that the results of the on-site slurry strength test were consistent with the one of the laboratory mixproportion strength test.The relevant conclusions can provide reference for the use of the new soil curing agent.

关 键 词：新型土体固化剂 加固土 无侧限抗压强度 室内配合比强度试验 现场取浆强度试验 

分 类 号：TU447[建筑科学—岩土工程]