中文摘要：

为探究长安大学研制的新型4#粉体固化剂的固化效果,以山西忻州定襄县粉质粘土为研究对象,进行了单掺长安大学新型4#粉体固化剂固化土制备。通过不同掺量与不同龄期固化土试件的浸水和不浸水无侧线抗压强度试验,分析了掺量和龄期对固化土力学特性的影响规律。结果表明：养护前期,固化剂固化土强度增幅随掺量增大而先快后慢,养护后期其强度增幅随掺量增大而先慢后快;低掺量固化剂固化土强度增幅随龄期延长而先快后慢,高掺量固化剂固化土强度增幅随龄期延长而先慢后快。然后在考虑固化剂掺量和龄期对强度影响的基础上,建立了符合该固化土力学特性的强度预测公式,为该固化剂在工程实际运用中开展强度保证理论和试验研究探索。

英文摘要：

In order to explore the oped by Chang＇an University, th the prepara Chang＇an U solid e artlc tion of the soil samples mi fication effect of the new type le focuses on the silt clay at Di xed only the new type of 4 %： of 4 %powder solidified agent devel ngxiang County, Xinzhou, Shanxi and powder solidified agent developed by niversity. Then the article conducts the unconfined compression strength test of different portion and different maintenance period with soaking or non-soaking respectively, and the influence pro regu larity of different proportion and different age mechanical properties are analyzed. The experimental results show that the increase of the strength of solidified-soil increases with the proportion and then becomes slow in the early stage of the maintenance, and the growth trend is opposite in the late maintenance; The increase of the strength of low proportion solidified-soil increases with the maintenance period and then becomes slow, and the growth trend is opposite with high proportion. On the basis of considering the intensity effects of different proportion and different age, the strength prediction formula in accordance with the soil mechanics properties of solidified soil is established, and it is useful for the solidified agent in the engi neering practice to carry out the exploration of the strength guarantee theory and experimental study.