隧道建设
隧道建設
수도건설
TUNNEL CONSTRUCTION
2014年
12期
1143-1147
,共5页
杨延栋%陈馈%李凤远%周建军
楊延棟%陳饋%李鳳遠%週建軍
양연동%진궤%리봉원%주건군
盾构隧道%地表沉降%理论分析%数值模拟%现场验证
盾構隧道%地錶沉降%理論分析%數值模擬%現場驗證
순구수도%지표침강%이론분석%수치모의%현장험증
shield-bored tunnel%ground surface settlement%theoretical analysis%numerical simulation%field validation
为了预测盾构隧道施工引起的地表横向沉降,针对狮子洋隧道陆地段DIK42+660断面地层,通过理论分析,利用Peck公式对该断面地表横向沉降量进行计算;通过数值模拟,利用ANSYS建立地层的有限元模型,并从数值模拟结果中获取地表单元的横向沉降量;最后通过与现场监测结果对比,对理论分析和数值模拟的地表横向沉降量预测方法进行评价。研究结果可为盾构隧道地表沉降的预测提供有效的方法。
為瞭預測盾構隧道施工引起的地錶橫嚮沉降,針對獅子洋隧道陸地段DIK42+660斷麵地層,通過理論分析,利用Peck公式對該斷麵地錶橫嚮沉降量進行計算;通過數值模擬,利用ANSYS建立地層的有限元模型,併從數值模擬結果中穫取地錶單元的橫嚮沉降量;最後通過與現場鑑測結果對比,對理論分析和數值模擬的地錶橫嚮沉降量預測方法進行評價。研究結果可為盾構隧道地錶沉降的預測提供有效的方法。
위료예측순구수도시공인기적지표횡향침강,침대사자양수도륙지단DIK42+660단면지층,통과이론분석,이용Peck공식대해단면지표횡향침강량진행계산;통과수치모의,이용ANSYS건입지층적유한원모형,병종수치모의결과중획취지표단원적횡향침강량;최후통과여현장감측결과대비,대이론분석화수치모의적지표횡향침강량예측방법진행평개。연구결과가위순구수도지표침강적예측제공유효적방법。
In this paper,the transverse ground surface settlement of DIK42 +660 cross-section of land section of Shiziyang tunnel induced by shield boring is calculated by means of Peck formula. The ground is numerically simulated by means of ANSYS finite element model,and the transverse ground surface settlement values are obtained from the numerical simulation results. The transverse ground surface settlement values obtained by means of theoretical analysis and numerical simulation respectively are estimated by means of comparing them with the measured values. The paper can provide reference for the prediction of ground surface settlement of shield-bored tunnel of similar projects in the future.