水泥加固淤泥土力学与抗海水腐蚀性能研究  

Study on the mechanics and seawater corrosion resistance of cement-reinforced silty soil

作　　者：阴琪翔 侯明姣 程强强[1] 张梦钵 YIN Qi-xiang;HOU Ming-jiao;CHENG Qiang-qiang;ZHANG Meng-bo(School of Architecture and Construction,Jiangsu Vocational Institute of Architectural Technology,Xuzhou 221116,China)

机构地区：[1]江苏建筑职业技术学院建筑建造学院,江苏徐州221116

出　　处：《化学工程师》2024年第2期78-82,共5页Chemical Engineer

基　　金：国家自然科学基金青年科学基金资助项目(52004105);江苏省高等学校自然科学研究重大项目资助项目(22KJA560001);徐州市重点研发计划(KC20199)。

摘　　要：为了分析水泥掺量和海水腐蚀对水泥加固淤泥土力学性能的影响规律,制备了水泥掺量为4%、8%、12%、16%和20%水泥加固淤泥土试件,分别经历了0、2、5、8、12、18次海水腐蚀干湿循环后,测试试件的单轴抗压强度、内聚力和内摩擦角,分析水泥掺量和海水腐蚀对水泥加固淤泥土力学性能的影响规律。研究结果表明,(1)随着水泥掺量的增大,水泥加固淤泥土的单轴抗压强度和内聚力呈线性增大,而内摩擦角呈指数衰减;(2)随着海水干湿循环次数的增加,水泥加固淤泥土的抗压强度、内聚力和内摩擦角均呈现不断变小的变化规律;(3)水泥掺量的增大能够有效提高加固淤泥土的抗海水腐蚀能力。In order to analyze the influence law of cement content and seawater corrosion on mechanical properties of cement-reinforced silty soil,samples of cement-reinforced silty soil with cement content 4%,8%,12%,16%and 20%soil were prepared.After 0,2,5,8,12 and 18 times of seawater corrosion dry-wet cycles,respectively,the uniaxial compressive strength,cohesion and internal friction angle of the specimens were tested.The effects of cement content and seawater corrosion on the mechanical properties of cement-reinforced silty soil were analyzed.The results show that:(1)With the increase of cement content,the uniaxial compressive strength and cohesion of cement-reinforced silty soil increase linearly,while the angle of internal friction decreases exponentially;(2)The compressive strength,cohesion and internal friction angle of cement-reinforced silty soil show a decreasing trend with the increase of the number of dry-wet cycles of seawater;(3)The increase of cement content can effectively improve the seawater corrosion resistance of the coment-reinforced silty soil.

关 键 词：水泥加固淤泥土 干湿循环 力学特性 抗海水腐蚀性能 

分 类 号：TU525[建筑科学—建筑技术科学] TU44