南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2010年
2期
139-141
,共3页
浅埋暗挖%洞型%优化
淺埋暗挖%洞型%優化
천매암알%동형%우화
shallow underground excavation%cavity form%optimization
南水北调中线古运河暗渠从进口到出口依次穿越省道S101、古运河和石太高速公路,除高速公路段拱涵为浅埋暗挖法施工外,其余拱涵均为明挖施工.通过对拱涵、箱涵等洞型断面型式优选,分析不同矢跨比对拱涵内力的影响,对大孔径输水暗涵部分明挖、部分暗挖的情况,推荐采用三孔一联拱涵整体穿越的洞室布置方案.
南水北調中線古運河暗渠從進口到齣口依次穿越省道S101、古運河和石太高速公路,除高速公路段拱涵為淺埋暗挖法施工外,其餘拱涵均為明挖施工.通過對拱涵、箱涵等洞型斷麵型式優選,分析不同矢跨比對拱涵內力的影響,對大孔徑輸水暗涵部分明挖、部分暗挖的情況,推薦採用三孔一聯拱涵整體穿越的洞室佈置方案.
남수북조중선고운하암거종진구도출구의차천월성도S101、고운하화석태고속공로,제고속공로단공함위천매암알법시공외,기여공함균위명알시공.통과대공함、상함등동형단면형식우선,분석불동시과비대공함내력적영향,대대공경수수암함부분명알、부분암알적정황,추천채용삼공일련공함정체천월적동실포치방안.
The covered conduit of ancient canal in the Mid-Line of the South to North Water Diversion Project drilled through provincial highway S101, ancient canal and Shijiazhuang-Taiyuan Expressway in turn from inlet to outlet.Except for arch culverts in passing through expressway section using the shallow underground excavation method in construction, the rest arch culvert using the open excavation method.To select opti-mal sectional form (among arch culverts, box culvert, etc), we have analyzed the influence of different rise-span ratio on stress of arch culvert.For large aperture conveying water covered culverts using open excavation and subsurface excavation together, we recommended to use the type of three-hole arch culvert.
