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结合红荔路西延工程的专题研究成果,采用数值计算的方法分析了市政隧道穿越对气象塔的影响,研究表明:双侧壁导坑法能够有效降低爆破开挖引起的围岩位移和衬砌结构的应力水平。隧道的爆破掘进对气象塔影响有限。此外,同隧道开挖产生的位移量相比,爆破引起的位移较小,气象塔在爆破施工的影响下发生失稳、破坏的可能性极小。
Combining with the special research results of Hongli Road Xiyan Project, the influence of municipal tunnel crossing on meteorological tower is analyzed by numerical calculation. The results show that the double-side pilot tunnel method can effectively reduce the displacement and lining of surrounding rock caused by blasting excavation Structure of the stress level. Tunnel blasting tunneling has a limited impact on the weather tower. In addition, the displacements caused by blasting are smaller than the displacements caused by tunnel excavation, and the meteorological tower is instable under the influence of blasting construction and the probability of destruction is extremely small.