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浅埋顺层地质极易造成滑坡地质灾害,采用108管棚及边坡挂网喷射混凝土坡面防护可以有效保证进洞安全及边坡稳定,详细对工法特点、试用范围、工艺流程、质量控制、监控量测等进行了阐述。为了验证理论分析和数值的可靠性,对隧道洞顶进行拱顶下沉、地表沉降监测,隧道洞内进行水平收敛、拱顶下沉进行实时监控,并且对其数据进行理论分析。监控量测工作,要严格做到三个及时(布点及时、观测及时、反馈及时)和二个统一(形式统一、断面统一)。
The shallow buried bedding geology can easily lead to the landslide geological disasters. The use of 108 pipe roof and the slope netting concrete slope protection can effectively ensure the safety of the cave and the stability of the slope. The characteristics of the method, the scope of the trial, the technological process, the quality control , Monitoring and measurement were described. In order to verify the theoretical analysis and the reliability of the numerical results, the tunnel roof is monitored by vault settlement, surface settlement monitoring, horizontal convergence in the tunnel tunnel and vault settlement, and the data are analyzed theoretically. Monitoring and measurement work, we must strictly do three timely (distribution timely, timely observation, feedback timely) and two unified (unified form, section uniform).