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岩土工程边仰坡是公路隧道建设经常遇到的重要问题之一。边坡的稳定性对于隧道工程建设与运营有着十分重要的作用,特别对于隧道安全进洞和进洞后的安全施工有很重要的影响。随着交通量的增长,特大断面隧道越来越多,其施工工序复杂。由于多次施工对边坡造成的多次扰动,对隧道施工安全影响越来越大。依托龙头山单洞四车道隧道,对特大断面洞口仰坡稳定性进行了分析和研究,可作为今后同类隧道洞口仰坡设计和施工借鉴。
Geotechnical engineering slope is one of the most important problems encountered in highway tunnel construction. The stability of slopes plays a very important role in the construction and operation of tunnel engineering, especially for tunneling safety and safety after tunneling. With the increase of traffic, more and more large cross-section tunnels, the construction process is complicated. Due to the multiple disturbances caused by multiple construction on the slope, the impact on the construction safety of the tunnel is getting bigger and bigger. Based on the single-lane four-lane tunnel of Longtoushan, the stability of the upward slope of the large cross-section of the tunnel is analyzed and studied, which can be used as reference for the design and construction of the upward slope of the same tunnel entrance in the future.