固化剂在滨海相淤泥固化土中的应用研究  

Study on the Application of Curing Agent in Coastal Silt Solidified Soil

作　　者：王小庆[1] WANG Xiao-qing(Shanxi polytechnic college,Taiyuan,Shanxi,030006,China)

机构地区：[1]山西职业技术学院,山西太原030006

出　　处：《建材技术与应用》2024年第6期67-70,共4页Research and Application of Building Materials

摘　　要：沿海城市的土体中蕴藏大量的淤泥,在工程建设过程中,为了减少淤泥对城市环境的污染,同时为了解决建筑材料短缺现象,展开淤泥固化的研究具有极大的环境价值和经济价值。以温州龙湾区金丽温高速公路东延线开挖的滨海相淤泥为研究对象,为改良其力学特性,提高其变形稳定性,加入不同掺量新型固化剂,对比分析了固化土无侧限抗压强度指标、CBR值及膨胀率随压实度(92%、96%和100%)和掺量(5%、6%、8%和10%)的变化特征。结果表明:滨海相淤泥固化土的无侧限抗压强度和CBR值随固化剂掺量和压实度的增加而增加,增长幅度逐渐降低,掺量8%对强度提升与变形稳定性维持更为显著。There is a large amount of silt in the soil of coastal cities.In order to reduce the pollution of silt to the urban environment and solve the shortage of building materials in the process of engineering construction,it is of great environmental and economic value to carry out the study of solidified soil.Taking the coastal silt excavated from the east extension of Jinliwen Expressway in Wenzhou Longwan District as the research object,new binder with different dosages were added to improve its mechanical properties and deformation stability.The unconfined compressive strength index,CBR value and expansion rate of solidified soil were compared and analyzed with compaction degree(92%,96%,100%)and dosage(5%,6%,8%,10%).The results show that the unconfined compressive strength and CBR value of the coastal silt solidified soil increase with the increase of the dosage of curing agent and the degree of compaction,and the increase amplitude decreases gradually.The dosage of 8%is more significant for strength improvement and the maintenance of deformation stability.

关 键 词：淤泥固化土 复合固化剂 无侧限抗压强度 CBR值 

分 类 号：TU43[建筑科学—岩土工程]