摘要
深埋隧道一般原始岩温较高(最大可超过40C),加之掌子面大量的机械散热及爆破时炸药散热,掌子面将可能出现较大热害。因此。必须对洞内的温度条件加以改善。根据编程计算结果,对采用人工制冷降温措施解决深埋隧道施工掌子面的热害问题进行探讨,并结合秦岭隧道进行了初步的方案设计。
In general, the original rock temperature of deep tunnel is relatively high (the maximum over 40 ℃), and plus a great deal of mechanical heat dissipating and explosive heat dissipating, there will be serious heat damage in work face. Therefore, it is necessary to improve air condition in tunnel. On the basis of the programming calculation results, this paper discusses on how to use temperature lowering measure by manual refrigerating to solve the heat damage problem in work face of deep tunnel and works out a preliminary design scheme combined with construction of Qinling tunnel.
关键词
隧道
人工制冷
降温
施工
深埋隧道
Deep Tunnel
Temperature Lowering in Construction
Manual Refrigerating
