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tunnel at great depth
相关语句
  深部隧道
     It is pointed out that ,to research the rheological phenomenon of tunnel at great depth,elasto-plastic state should be taken as the initial state.
     指出研究深部隧道围岩的流变,初始参照状态应该取为弹塑性状态。
短句来源
  “tunnel at great depth”译为未确定词的双语例句
     VISCO-ELASTICAL ANALYSIS OF SURROUNDING ROCK DEFORMATION OF QINLING TUNNEL AT GREAT DEPTH AND HIGH GROUND TEMPERATURE
     秦岭隧道在深埋高地热条件下围岩变形的粘弹性分析
短句来源
     SUPPORT TECHNIQUE OF STEEL FIBER SHOTCRETE FOR SOFT ROCK TUNNEL AT GREAT DEPTH
     深部软岩巷道喷射钢纤维混凝土支护技术
短句来源
  相似匹配句对
     Tunnel Vision
     隧道进行曲
短句来源
     The History and Development of tunnel
     隧道的历史及发展
短句来源
     Anatomy of the Cubital Tunnel
     肘管的解剖
短句来源
     Ventilation of Long Tunnel
     长距离隧洞通风排烟
短句来源
     THE GREAT OUTDOORS
     享受户外闲情
短句来源
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To counter the general behaviors of soft rock at great depth, a new support technique of soft rock tunnel at great depth is suggested in this paper. Firstly change the recently used sequence of bolting and shotcreting and then mix h the standard concrete with a certain amount of steel fiber to improve the mechanical behavior of standard concrete so that the shotcrete can meet the needs of large deformation of soft rock. The numerical modelling is employed to compare the support schemes and a reasonable...

To counter the general behaviors of soft rock at great depth, a new support technique of soft rock tunnel at great depth is suggested in this paper. Firstly change the recently used sequence of bolting and shotcreting and then mix h the standard concrete with a certain amount of steel fiber to improve the mechanical behavior of standard concrete so that the shotcrete can meet the needs of large deformation of soft rock. The numerical modelling is employed to compare the support schemes and a reasonable scheme is proposed. The support scheme is practiced successfully at the transport tunnel on the level -575m of the Coal Mine No.10 of Hebi Coal Mining Administration.

针对深部软岩的基本特征 ,提出了深部软岩巷道支护的新思路 ,即改变现有的锚喷作业顺序 ,并通过在素喷混凝土中掺入适量钢纤维的方法来改善混凝土的整体力学性能 ,使之更好地适应软岩巷道大变形的需要。借助数值模拟 ,进行了支护方案的对比分析 ,并提出了合理的支护方案。该方案在鹤壁矿务局第 10煤矿 - 5 75m水平转载运输巷试验获得成功

The first phase of west route of South-to-North Water Transfer Project consists of 4 dams,2 weirs and 7 tunnels which transfer water of 4 billion cubic meters to the Yellow River annually.The most complicated part of the project belongs to the design and construction of these long tunnels at great depths.The majority of strata lithology are Triassic sandstone and slate;and the dam condition is good.With complicated engineering geologic condition,the major existing problems include the...

The first phase of west route of South-to-North Water Transfer Project consists of 4 dams,2 weirs and 7 tunnels which transfer water of 4 billion cubic meters to the Yellow River annually.The most complicated part of the project belongs to the design and construction of these long tunnels at great depths.The majority of strata lithology are Triassic sandstone and slate;and the dam condition is good.With complicated engineering geologic condition,the major existing problems include the stability of surrounding rock passing through shattered zone,high geostress and high geo-temperature of deeply bedded tunnels,inrush of water,and the slope stability of tunnel′s intake.These complex engineering geologic problems can be solved.The geological condition is feasible.The elevation of the project varies from 3 400 m to 4 800 m,where oxygen is in shortage and heavy physical labor is not applicable.So TBM method is acceptable,whose double protection shields are adopted for excavation in the project.

南水北调西线一期工程由“四坝、二堰、七洞”组成,年调水量40×108 m3。工程的最大难点在于深埋长隧洞的勘察、设计与施工。工程地质条件相对复杂,枢纽的建坝地质条件较好,块石料满足要求,库区淹没损失小。隧洞区的主要岩石类型为三叠纪的砂岩和板岩,局部出露有灰岩和岩浆岩。深埋长隧洞存在着诸多复杂的工程地质和岩石力学问题,但在目前的经济技术条件下是可以解决的,不存在制约西线工程实施的技术难关和地质条件。

To analyse the rheological phenomenon of tunnel at great depth and keep the long term stability of the geotechnical engineering,the rheology of rock around tunnels was studied with Shvedov-Bingham model.The elasto-plastic state was taken as the initial state,different mechanical properties in elastic and plastic zones were considered,and the evolution law of shearing strenght and deformatin of volume in different zones was analyzed.By theoretical derivation,analytic solutions to rheological radius...

To analyse the rheological phenomenon of tunnel at great depth and keep the long term stability of the geotechnical engineering,the rheology of rock around tunnels was studied with Shvedov-Bingham model.The elasto-plastic state was taken as the initial state,different mechanical properties in elastic and plastic zones were considered,and the evolution law of shearing strenght and deformatin of volume in different zones was analyzed.By theoretical derivation,analytic solutions to rheological radius and stress-strain state were obtained,and the evolution law of them was also analyzed.It is pointed out that ,to research the rheological phenomenon of tunnel at great depth,elasto-plastic state should be taken as the initial state.

为了准确地分析深部隧道围岩在高应力区的流变现象,保持岩土工程的长期稳定性,利用Shvedov-B ingham模型理论,研究了隧道围岩在初始时刻出现塑性区情况下的流变情况,并考虑了塑性区及弹性区力学性质的不同。分析了不同区域岩体的剪应力和体积变化规律。通过理论推导,给出了流变区半径及应力应变的解析解,并分析了应力分布及流变半径的变化规律。指出研究深部隧道围岩的流变,初始参照状态应该取为弹塑性状态。

 
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