LI Wen-jiang, LIU Zhi-chun, ZHU Yong-quan. Ground surface settlement control norm for tunneling under railway station region in soft soil[J]. 2005, 26(7).
LI Wen-jiang, LIU Zhi-chun, ZHU Yong-quan. Ground surface settlement control norm for tunneling under railway station region in soft soil[J]. 2005, 26(7).DOI:
According to the general rule of ground deformation due to tunnel construction
the effect of tunnel excavation on existing objects is analyzed. Combined with the underground passage project between south and north square of Changchun Station
which crosses the existing rail lines
platforms
postal passages and several underground pipes
taking the permissible unequal settlement of existing structures in the code as controlling object
the controlling norm is established for surface settlement due to tunnel construction by basic mathematic and mechanical analysis methods. The established norm has assured the safety and smoothness of construction and has been proved by the construction practice.