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介绍北京地铁10号线二期17标火器营站-终点站区间及长春桥站-火器营站区间无水砂卵石地层盾构施工采取的措施,展示了无水砂卵石地层对盾构刀具的磨损情况,讨论了刀具磨损的规律及刀具磨损与施工参数的关系。施工前对刀盘进行合理改进,施工中严格控制掘进参数,有效控制地表沉降、维持开挖面稳定,减小刀具磨损,最终使盾构顺利完成无水砂卵石地层施工,并对今后盾构在此类地层中施工提供借鉴。
This paper introduces the measures taken to shield the sand-gravel stratum from the 17th firearm station-the terminal station of Phase II of Beijing Metro Line 10 and the dry sand-pebble stratum of Changchunqiao Station-Firearm Station. Wear and tear, discussed the law of tool wear and tool wear and construction parameters. Construction of the cutter before the reasonable improvements in the construction of the strict control of driving parameters to effectively control the surface subsidence and maintain the excavation surface stability and reduce tool wear and tear, and ultimately shield the smooth completion of the water-free sand and gravel stratum, and shield the future Provide reference for the construction in such strata.