EFFECTS OF CONSOLIDATION TIME AND PARTICLE SIZE ON SCOUR RATES OF COHESIVE SEDIMENT

来源 :水动力学研究与进展B辑 | 被引量 : 0次 | 上传用户:williamchu2008
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
By means of flumes, experiments have been done in order to determine the effects of consolidation time and particle size on scour rates of cohesive sediment. Experimental results shown dry unit weight increased and scour rates decreased during the course of consolidation, the resistance to scour was related to consolidation time, but it presented different consolidation properties that depended on particle size. For the finer particle, the consolidation process was longer, the range of dry unit weight altered was greater, the consolidated sediments moved in chunks. On the other hand, based on analysis of the relationship of dry unit weight change with consolidation time, the simplified analytical expressions of dry unit weight and scour rates were derived, the results were checked with experimental data in the same flow situation and good agreements were achieved. Since the effects of different particle size were considered during the process of consolidation, the variations of consolidation properties were well reflected in these formulas.
其他文献
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
近年来,全社会都在提倡高效课堂,但达到高效课堂的首要条件是使得现有的课堂有效.怎样才能达到课堂的有效性呢?则要从教学准备、教学策略、教学方法三个方面来考虑.在教学的
研究讨论了节约能源对可持续发展和我国新型工业化过程的重要意义,介绍了我国的能源状况、节能所取得的成绩和节能潜力,分析了我国几个主要部门的节能办法、措施。 The stud
【再现】从2007年秋季新学年开始,云南省289所中等职业学校的新生,每人每年可获得1500元的国家助学金,资助面达100%,覆盖所有农村学生和 【Reproduction】 Beginning of the
去年夏天,我以优异的成绩成为乡里唯一考上市一中的学生,并且幸运地作为特困生获得了学校的补助金。可是,当我背负着父母殷切的希望和乡亲们羡慕的目光走进重点中学的大门时,
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
对于中老年人来说,维生素虽然不是助性的药物,但是想要性福,体内一定不能缺乏。维生素A主要功能是促进蛋白质的合成。缺乏维生素A时,男性可以影响睾丸组织产生精母细胞,输精
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊