| 地铁隧道小净距爆破施工对相邻隧道支护振动响应研究 |
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| 引用本文： | 何剑,朱映丞,沈明炜,俞丰平.地铁隧道小净距爆破施工对相邻隧道支护振动响应研究[J].路基工程,2022,0(1):171-176. |
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| 作者姓名： | 何剑 朱映丞 沈明炜 俞丰平 |
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| 作者单位： | 中铁城市发展投资集团有限公司，成都 610032 |
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| 摘 要： | 依托杭州地铁5号线通火区间隧道工程，采用FLAC3D数值模拟方法，以先行隧道初期支护为监测对象，研究其爆破振动主要影响部位，探讨不同循环进尺下和不同隧道净距下的振速、位移振动响应规律；探讨城市地铁小净距隧道开挖的条件下采用钻爆法时引起的相邻隧道支护振动响应问题。
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| 关 键 词： | 小净距隧道 爆破开挖 数值模拟 初期支护 振动响应 |
| 收稿时间： | 2021-08-03 |
Study on Vibration Response of Adjacent Tunnel Support to Small-spacing Blasting Construction in Subway Tunnel |
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| Abstract: | In relation to the engineering of Tonghuo interzone tunnel of Hangzhou Metro Line 5, by means of FLAC3D numerical simulation, and the primary supporting to advancing hole as the monitoring object, the main parts affected by the blasting vibration was studied, and the vibration velocity and displacement response laws under different cyclic footage and different tunnel spacing were discussed. It's discussed the vibration response of adjacent tunnel support during drilling and blasting in the condition of small spacing tunnel excavation of urban subway, |
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