扬州瘦西湖盾构隧道泥水系统中黏土块的溶崩规律研究
发布时间：2018-01-10 23:23
本文关键词：扬州瘦西湖盾构隧道泥水系统中黏土块的溶崩规律研究 出处：《科学技术与工程》2014年11期 论文类型：期刊论文
【摘要】：针对黏土块在管道中随泥浆运移时易溶崩破碎的特点,以扬州瘦西湖黏土为研究对象,室内试验与现场施工情况相结合,对黏土块的溶崩破碎特性进行了试验研究。结果表明,黏土块的溶崩破碎程度与黏土块浸泡的泥浆密度、浸泡时间、外加水流冲击及切削作用等关系紧密。黏土块在排浆管中运移时不会完全溶崩破碎,经过流水搬运和相互间的反复翻滚摩擦、碰撞,一部分溶崩后变为泥浆,一部分形成圆浑状的黏土块排出。对黏土块的室内试验结果与实际工程结果做了较为全面的对比,分析了结果差异及原因。
[Abstract]:The Clay Lumps in the pipeline with mud Yunyishiyi solution collapse broken, Slender West Lake in Yangzhou clay as the research object, indoor test and site construction conditions for the combination of clay solution collapse crushing characteristics were studied. The results showed that the fragmentation degree of solution collapse and clay soaked mud density, clay soaking time and water flow impact and cutting effect closely. Clay in the slurry discharging pipe transport will not collapse completely dissolved after crushing, water handling and the repeated rolling friction, collision, a part of solution collapse into the mud, a part of clay blocks form a rounded like discharge. Laboratory testing results of viscosity clod and practical engineering and compared comprehensively, analyzed the differences and reasons.
【作者单位】： 河海大学土木与交通学院;河海大学环境学院;河海大学力学与材料学院;
【基金】：国家自然科学基金项目(51278165) 江苏省博士后科研资助计划项目(1301031B)资助
【分类号】：U452.11
【正文快照】： 泥水加压盾构的施工中[1],泥浆的环流处理是整个工程顺利进行的重要保障。扬州^宋骱芄顾淼啦唤鼍哂写蠖厦妗⑺率┕さ奶氐，
本文编号：1407227
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