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| STUDY OF IMPACT OF SHIELD TUNNELING SIDE-CROSSING ON ADJACENT HIGH BUILDINGS |
| HE Meide1，2，LIU Jun3，LE Guiping4，WANG Mengshu1，ZHANG Dingli1 |
| (1. Tunnel and Underground Engineering Research Center of Ministry of Education，Beijing Jiaotong University，Beijing 100044，China；2. Beijing Municipal Engineering Research Institute，Beijing 100037，China；3. Beijing Municipal Engineering Group Co.，Ltd.，Beijing 100045，China；4. Beijing MTR Construction Administration Co.，Beijing 100037，China) |
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Abstract Based on a certain constructing running shield tunnel of Beijing metro side-crossing close to a high-rise building，using the finite element method calculation model and site monitoring method，the foundation characteristics of the high-rise building affected by the constructing shield tunnel are studied. In different construction stages，the variations of the foundation settlement and inclination of the high building are analyzed. The simulation results show that stratum vertical displacement has a sudden change near the high-rise building. Away from the building in an enough distance，the displacement curve becomes flat. From site monitoring results，the high-rise building inclined to the direction away from the tunnel prior to the shield closing to the building，while the building inclined towards the tunnel during shield crossing. The settlements of the monitoring points reach the maximum value when the shield is 10.0 m away from the monitoring surface. However，the settlements declined significantly when the shield is more than 60.0 m from the monitoring surface，and finally becomes stable. The simulation and the site monitoring results agree well. The conclusion would be helpful for the future similar shield tunneling projects.
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Received: 21 August 2009
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MAO Yuting1, 2, HE Manchao1, 2, LIU Fangzhou3, BAI Xing4, YANG Xiaojie1, 2, TAO Zhigang1, 2*. Development and application of a large-scale physical model system for tunnel creep testing[J]. , 2026, 45(6): 1627-1638. |
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