规划码头施工对隧道影响分析试验研究

为研究邻近规划码头施工期对盾构隧道影响，以武汉二七路过江通道为例，通过有限元的计算方法，研究在最不利工况条件下，规划港口岸线内码头锤击沉桩施工引起的隧道衬砌结构水平位移、竖向位移以及振动引起的峰值速度。结果表明，规划码头打桩施工引起的隧道处振动速度、结构位移等变化远小于安全限制值，邻近规划码头打桩施工不会对隧道结构安全造成不利影响。

Experimental Study to Analyze the Impact of The Planned Pier Construction on The Tunnel

In order to study the influence of the construction period of the adjacent planning wharf on the shield tunnel, taking the Wuhan Erqi Road river crossingas an example, the finite element calculation method is used to study the horizontal displacement, vertical displacement and peak velocity caused by vibration of the tunnel lining structure caused by hammer driven pile construction within the planned port shoreline under the most unfavorable working conditions. It is concluded that the changes of vibration velocity and structural displacement at the tunnel caused by the piling construction of the planned wharf are much smaller than the safety limit values, and the piling construction of the adjacent planned wharf will not adversely affect the safety of the tunnel structure.