摘要
结合浃里陈大桥试验段的真空度测试结果,分析了真空度分布与密封性、真空能量、深度、介质阻力、地下水位线等因素的相关联系.分析结果表明,上述各种因素对真空度的分布均有不同程度的影响;地下水位线对真空度的分布起阻挡作用;水位线以上的真空度是由抽气直接形成,而水位线以下的真空度主要是由于地下水位的下降或部分封存气体从软管末端逃逸引起的.
Based on the test results of vacuum degrees obtained, the relationship between vacuum degree distribution and the factors, such as sealing function, vacuum energy, depth, resistance and groundwater table indicates that these factors have different effect on the vacuum distribution. Groundwater table can completely resist transferring of vacuum degrees; the vacuum degree above the groundwater table is produced directly by pumping air, and that vacuum degree below groundwater table is produced mainly by dewatering and by escaping of sealed air from the end of flexible pipe.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2003年第11期1399-1401,1404,1408,共5页
Journal of Harbin Institute of Technology
关键词
真空排水预压法
真空度
密封性
地下水位线
软土地基
distribution of vacuum degree
influencing factors
sealing function
groundwater table
