研究了不均匀岩土介质中隧洞衬砌的波动响应。
Wave motion response of tunnel lining embedded in unbounded nonuniform soil medium is studied.
研究结果为南水北调西线一期工程隧洞衬砌设计提供了依据。
The results can provide a basis for the design of linings in the first phase of the west route of South-to-North Water Transfer Project.
地应力和地下水问题对深埋长隧洞衬砌的设计及施工具有重大影响。
In-situ stress and groundwater have important influences upon the design and construction of the lining for deep and long tunnels.
最后从地应力角度,讨论地下厂房的轴线选择和高压隧洞衬砌设计方案。
Finally, the selection of underground power house axis and the lining design scheme for the pressure tunnel are discussed based on the in-situ stress.
隧洞衬砌采用针梁滑模、全断面一次浇筑的方法施工,可以减少工序作业,保证施工质量。
The tunnel is lined with the method "single placement for the full cross using needle beam sliding form", which can save construction procedures while ensuring quality.
隧洞衬砌运行时具有一定的温度应力,但其值不大,仅为钢筋允许拉应力的十分之一左右。
There will be a certain thermal stress in the lining during operation, but the stress is not great, being only about one tenth of the allowable tensile stress of the reinforcing bars.
这些发现,是从常规检查而收集出来的其它数据中被证实,引致伦敦地下铁要调查研究隧洞衬砌的替代物。
These findings, backed up by other data collected from conventional inspections, led London Underground to investigate the replacement of the tunnel lining.
本文提出了一种在复合膨胀岩体中考虑其耦合流变性态和渗流效应以设计有压隧洞衬砌的有限元方法。
A finite element method for the design of the lining of pressure tunnels in complex-swelling rock, considering its coupled-rheological behaviour and the seepage effect is presented in this paper.
本课题主要是针对特殊地质的黄土隧洞,利用隧洞衬砌结构计算理论,建立黄土隧洞的衬砌结构计算数学模型。
This subject concerning the loess tunnel which has special geology utilized the tunnel lining structure calculation theory and established the mathematical model of loess tunnel lining structure.
水工隧道混凝土衬砌均存在不同程度的裂缝,本文介绍了尾水隧洞衬砌混凝土裂缝预防和不同类型裂缝的处理办法。
Cracks of different levels exists in hydraulic tunnel concrete liner. The prevention of liner concrete cracking at tailwater tunnels and measures on different levels cracking are discussed in detail.
对于水工隧洞衬砌混凝土,在施工期由于水泥水化热作用,温度应力影响显著,是产生混凝土结构裂缝的重要原因之一。
As for hydraulic tunnel lining concrete, thermal stress is one of important factors that cause concrete cracks, due to the heat of hydration of cement in the construction period.
将内水压力以体力的形式作用于隧洞衬砌和围岩,建立了高压隧洞内水外渗渗流场与应力场的耦合数值分析的计算模型。
The inner water pressure is applied to the lining block and surrounding rock as physical force, and the coupled analysis model of seepage field and stress field is formed.
近年来,在我国有采用预应力锚索混凝土衬砌隧洞的趋势。
Recently, there is a tendency to use pre-stressed anchorage-cable concrete to line tunnel.
实践证明,运用透水衬砌隧洞的原理进行设计和分析是可行的,合理的。
The practice showed that the application of the principles of pervious lining tunnel to the design and analysis is feasible and reasonable.
室内试验和工程应用研究表明,该方法为隧洞混凝土衬砌厚度检测提供了一个有效的测试手段。
Indoor experiment and application study shows it is an effective method for testing thickness of tunnel concrete lining.
介绍了组合式钢筋承重骨架支撑模板进行隧洞混凝土衬砌的施工方法及其特点。
This paper introduced construction measure and features of concrete brickwork lining construction for combining-style steel bearing reinforced bar framework support mould in tunnels.
主要进行了有限元法高压透水衬砌隧洞和边界元法高压透水衬砌隧洞的比较分析。
The comparison and analysis on the finite element method and the boundary element method of high-pressure pervious lining tunnel have been conducted.
研究了隧洞围岩安全系数(剪切安全系数、拉裂安全系数)与衬砌安全系数的算法以及隧洞设计计算方法。
Safety factors of rock, including shear safety factor and tensile safety factor, safety factor of lining and design calculation methods of tunnel are studied.
对于均质连续岩体,通过模拟围岩抗力,可以仅取衬砌及其附近围岩作为分析对象,将水工压力隧洞应力分析转化为受内、外压的厚壁圆筒。
When the hydraulic pressure tunnel is pressed by water, the concrete of tunnel transfers the pressure to the surrounding rock mass, and it also is pressed by the rock reaction force at the same time.
文中介绍了万家寨引黄隧洞工程不良地质洞段施工中的开挖,临时支护,混凝土衬砌等。
This paper introduces excavation of the unfavorable geological section of tunnel project of Wanjiazhai YRDP, temporary brace and construction of concrete lining.
某隧洞工程采用TBM施工,六边形预制钢筋混凝土管片衬砌。
One tunnel is being constructed by TBM. Its lining adopts precast concrete hexagonal segment.
由于衬砌水电站压力隧洞费用极高,如果能取消、即使部分取消压力隧洞的钢板衬砌,将能得到极大的经济效益。
Considering the high cost for Iining pressure tunnel a considerabie economic advantage can be obtained if pressure tunnels keep unlined completely or only partly.
表明在环锚预应力衬砌的压力隧洞中,主要荷载由预应力承担,但钢筋的作用及温度应力的影响是不可忽视的。
This makes known that the main load is borne by prestress cables, but the action of steel bars and affect of temperature stress should not be ignored in a pressure tunnel with circular anchor p...
对求得的围岩和衬砌安全系数进行评价分析,形成黄土隧洞支护结构设计的定量方法。
Evaluating and analyzing the safety factors of the surrounding rock and the liner, quantitative methods of designing loess tunnel support structure are formatted.
基于岩体应变非线性软化本构模型,考虑中间主应力的影响,对等压荷载作用下的衬砌压力隧洞进行弹塑性分析。
According to the strain nonlinear softening constitutive model of practical rock, pressure tunnel with liner under the uniform pressure is analyzed.
得出了此座引水隧洞一、二次衬砌的内力情况。
And derived the internal force of the first and second lining of the diversion tunnel.
考虑衬砌和围岩(土)的相对渗透性,隧洞处于半封闭状态。
Considering the relative permeability of lining and surrounding rock or soil, the tunnel is assumed to be partially sealed.
考虑地应力的释放和衬砌安装的时序,提出合理模拟隧洞修筑过程的力学模型。
Firstly, an appropriate mechanical model considering the stress relief and the installation sequence of the lining is proposed to model the construction sequence of the tunnel structure.
软弱围岩隧洞在设计上采用钢筋混凝土装配式预制构件衬砌的方式近年来越来越多,但在施工上还一直没有形成一套较完善的衬砌安装方法。
In recent years the reinforced concrete precast element linings are adopted more and more for the soft surrounding rock tunnels. But a perfect assembling method for lining is not performed yet.
对隧洞围岩条件良好洞段,论证取消隧洞原圆形钢筋混凝土衬砌,选定马蹄形锚喷断面作为最终优化断面形式。
For tunnel sections with good surrounding rocks, the U-shaped rock-bolted section is selected as a final optimized section instead of the original circular reinforcement concrete lining section.
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