隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2011年
5期
620-623
,共4页
地铁盾构隧道%平面联系测量%联系三角形定向%中误差%精度评定
地鐵盾構隧道%平麵聯繫測量%聯繫三角形定嚮%中誤差%精度評定
지철순구수도%평면련계측량%련계삼각형정향%중오차%정도평정
shield-driven Metro tunnel%plane connection survey%connection triangle orientation%standard error%accu-racy assessment
针对盾构法施工地铁隧道竖井井口较大的特点，采用联系三角形定向法进行平面联系测量较容易布设成优化的三角形形状，通过精度评定及测量实例分析，从理论与实践上验证了该方法能够达到满足地铁贯通要求的定向精度，在竖井井口较深且具备布设条件时联系三角形定向可作为盾构隧道平面联系测量的首选方法。
針對盾構法施工地鐵隧道豎井井口較大的特點，採用聯繫三角形定嚮法進行平麵聯繫測量較容易佈設成優化的三角形形狀，通過精度評定及測量實例分析，從理論與實踐上驗證瞭該方法能夠達到滿足地鐵貫通要求的定嚮精度，在豎井井口較深且具備佈設條件時聯繫三角形定嚮可作為盾構隧道平麵聯繫測量的首選方法。
침대순구법시공지철수도수정정구교대적특점，채용련계삼각형정향법진행평면련계측량교용역포설성우화적삼각형형상，통과정도평정급측량실례분석，종이론여실천상험증료해방법능구체도만족지철관통요구적정향정도，재수정정구교심차구비포설조건시련계삼각형정향가작위순구수도평면련계측량적수선방법。
In shield-driven Metro tunnels, the shaft mouth is large. In plane connection survey, the method of connection triangle orientation is adopted and the connection triangle can be optimized easily. The accuracy assessment and survey case analysis demonstrate that the method of connection triangle orientation can meet the precision requirements of Metro tunnels both in theory and in practice. Where the shaft is deep and the connection triangle can be arranged, the method of connection triangle orientation can be adopted as the preferred method in the plane connection survey of shield-driven tunnels.
