Abstract:Research purposes:According to the design, XiamenXiangcan SubmarineTunnelwillpass through the four deepweathered troughs or capsules: F1, F2, F3, F4. In order to make the submarine tunnel passing through the weathered trough successfully and offer the reference to the similarwork, the grouting experimenton full face grouting in advance is conducted in the bad segmentof the soil and rock boundary.
Research conclusions:Using full-face curtain grouting technology to dealwith the deep weathered and weak stratum can obtain a good resul,t but the technique and technicalparameters forgrouting should be controlledwel.l The grouting technique should be the segmental grouting in advance along with afterward grouting. The vertical grouting length for submarineweathered troughs does not exceed 25 m.The area of the grouting in portraitshould be 4m outof the contour line of the service tunnel and the area of the grouting in the travelling tunnel is5m. The groutingmaterial isGM cemen.t
徐海廷,王全胜,孙国庆,李治国. 厦门翔安海底隧道土石交界软弱地层全断面注浆试验研究[J]. 铁道工程学报, 2009, 26(1): 67-71.
XU Hai-ting,WANG Quan-sheng, SUN Guo-qing,LI Zhi-guo. ExperimentalResearch on the FullFace Grouting forW eak Stratum in Soil and Rock Boundary for Xiamen Xiangcan Submarine Service Tunnel. 铁道工程学报, 2009, 26(1): 67-71.