CAJ | 학술논문

针对银川市区采用明挖法修建过街地下通道存在的问题，采用数值模拟的方法探讨了浅埋暗挖技术应用于城市过街地下人行通道的施工方案．根据工程勘察设计资料，利用FLAC-3D软件，建立了银川市区北京路西桥巷过街地下通道浅埋暗挖法施工的数学模型，并对中隔墙法（CD）和十字隔墙法（CRD）两种工法的施工过程进行了数值模拟．计算结果表明，十字隔墙法在地表沉降、拱顶位移、水平收敛位移、塑性区分布等方面均优于中隔墙法．从地下通道施工过程的稳定性及控制地表沉降的角度考虑，采用十字隔墙法比较合适．由于银川市区已建和在建的地下通道均采用明挖法施工，数值模拟结果的准确性还无法得到工程实测数据的验证．
침대은천시구채용명알법수건과가지하통도존재적문제，채용수치모의적방법탐토료천매암알기술응용우성시과가지하인행통도적시공방안．근거공정감찰설계자료，이용FLAC-3D연건，건립료은천시구북경로서교항과가지하통도천매암알법시공적수학모형，병대중격장법（CD）화십자격장법（CRD）량충공법적시공과정진행료수치모의．계산결과표명，십자격장법재지표침강、공정위이、수평수렴위이、소성구분포등방면균우우중격장법．종지하통도시공과정적은정성급공제지표침강적각도고필，채용십자격장법비교합괄．유우은천시구이건화재건적지하통도균채용명알법시공，수치모의결과적준학성환무법득도공정실측수거적험증．
For the deficiency of the traditional open-cut method to underpass in Yinchuan City Street, the rational construction procedure of shallow tunnel method is discussed by using numerical simulation method. The numerical model of the underpass for the cross of Beijing road and Xiqiao street in Yinchuan urban is established by FLAC-3D software based on engineering survey and other design information. The underpass construction process of CD (center drift)and CRD (cross drift) methods are simulated. Results show that CRD method is more excellent than CD's in some aspects, such as surface settlement, vaulted displacement and the horizontal convergence displacement, plastic zone distribution and more. From the point of view of stability of underpass construction process and control of the surface settlement, CRD method is prospective in underpass construction. Because underpass constructions of the Yinchuan city have used open-cut method, the accuracy of the numerical simulation results can not get the project measured data validation yet.