But to deep-lying diversion runnel, there are a lot of problems to be resolved not only hi design theory but also in techniques. 然而对深埋引水隧洞,无论是设计计算理论,还是施工建设技术,都处在探索阶段。
Process Measures for Reducing Temperature Difference at Upper Pant and Lower Pant in a runnel Kiln 减少隧道窑上下温差的工艺措施
Particular request of transportation operating ventilation of long tunnels and particularly extra long tunnels is desired in highway construction, for it deals with directly engineering architecture, investment scale of facilities and the safety and efficiency after the completion of runnel construction. 长隧道和特长隧道的营运通风在公路隧道建设中有特殊要求,直接涉及到工程土建、设备投资规模以及隧道建成后的运营安全和效率。
But there is an unsolved problem in the exploration of unfavorable geologic bodies filled with water in the advanced forecast of geology in runnel. 但是目前在施工中,探测掌子面前方的水体病害方面,尚是一个待攻克的难题。
Finally we set up three-dimensional space model to simulate the space effect during tunnel construction, analyze the transaction between the left runnel and the right tunnel, and also analyze the deformation and stability of mid-partition. 最后建立了三维空间模型,对连拱隧道开挖时的空间效应、左右洞的相互影响,以及中隔墙的变形和稳定性进行了模拟分析。
Migration of ridge ( bar) runnel systems and the resultant sedimentary characteristics on Modern Coast, Zhoushan Archipelago 舟山现代滨岸滩脊(坝)沟槽体系迁移与沉积特征
Aeroelastic model wind runnel test was carried out to investigate the effect of internal pressure on roof response. 同时,利用气动弹性模型风洞试验,研究了内压对屋盖风振响应的影响。
After being formed, ridge ( bar) and runnel system migrates landward mainly under the accretion of an uprush current; 4)沿岸砂堤相&拍岸浪的冲流把海滩沙推向高处堆积而成;(2)滩脊(坝)沟糟体系形成后,主要在上冲流加积作用下向岸迁移;
The fractures and regional unconformities supply the runnel for the migration of oil and gas, and also have effect on the re-distribution and destruction of oil and gas. 断裂和区域性不整合面为油气运移提供了通道,而且对油气再分布及破坏亦有一定影响。
Secondly, through the analysis of primary deformation influencing factors and the deformation character of the surrounding rock, the deformation mechanism of soft rock in the west route runnel project is concluded. 对软岩隧洞工程围岩变形的主要影响因素、变形特点等进行分析,较全面的论述了深埋隧洞软岩变形机理。
Being lack of scientific risk assessment tools and scientific risk management system, the safety accidents occur occasionally in the process of city runnel construction. 由于缺乏科学风险评估工具和科学的风险管理体系,在现有城市隧道建设过程中,安全事故时有发生。
Different from building a single tunnel, building interchange tunnels will encounter many Problems that does not exit during building a single runnel. Furthermore, the underground interchange tunnels is at its early stage, so corresponding design and construction experiences are seriously penurious. 与修建单一的隧道不同,要在地下修建多条互通立交的高速公路隧道,将会遇到各种单一隧道中不存在的问题,而且目前这方面的设计、施工均没有直接的经验,难度将会大大增加。
Through the analysis of plastic area induced by tunnel excavation under different conditions, this article concludes that: by increasing load or decreasing the distance between load and tunnel, the plastic zone induced by runnel excavation will be larger. 通过分析不同工况下隧道开挖塑性区范围,本文得出:荷载值的增加以及荷载与隧道间距离的减小,都会使隧道开挖产生的塑性区变大。