The data measured by SIR-10 radar are analyzed by wavelets. The three reflected waves can be so clearly distinguished and the tunnel-lining thickness and void size are easily detected.
利用子波分析了SIR - 10雷达所测得的隧道衬砌数据,在某一尺度上清楚地得到了三个界面的反射波。
When designing tunnel lining, rock pressure is the most important load and very difficult to determine.
在隧道衬砌设计中,围岩压力通常是最主要的荷载,也是最难以确定的荷载。
The conclusions obtained provide theoretic basis for fire resistance analysis and design of tunnel lining structures and the evaluation after fire.
这些结论为隧道衬砌结构抗火分析、设计以及火灾后的评价等提供了理论依据。
At the sea coast or in the Marine environment, the chloride erosion is the main factor causing reinforcement corrosion of tunnel lining.
在近海或海洋环境下,氯离子侵蚀是引起隧道衬砌结构钢筋锈蚀的主要因素。
The results of calculation show that the joint has reverse effect on deformation and loading condition of tunnel lining.
通过计算,表明节理的存在,使隧道衬砌的变形和受力状况恶化。
Then, the divide standard of damage grade and the enduring fire limit time of the tunnel lining caused by fire accident are discussed.
在此基础上提出了隧道衬砌火灾损伤等级的划分标准与耐火极限时间。
This paper presents a method, based on the finite element, to compute the structural reliability of bias tunnel lining. Authors compile a practical program and give an example.
提出了基于有限单元法求解偏压隧道衬砌结构可靠度的方法,开发了实用计算机程序,并给出实际算例。
It is an important concern to protect tunnel lining structure from fire in tunnel fire prevention engineering.
衬砌结构防火是隧道防火的一个重要组成部分。
Result of synthetically analyzing and mechanical computation turns out that the unsymmetrical load is the main cause of the cracks in tunnel lining.
经综合分析及力学计算,存在较大偏压是隧道衬砌产生裂缝的主要原因。
It has been proved that GPR is a feasible method to inspect the structure of tunnel concrete lining.
使用地质雷达对隧道混凝土衬砌结构进行检测,实践证明技术方法是切实可行的。
In the mountain tunnel construction, the secondary lining concrete crack is a certain universal quality problem.
在山岭隧道施工中,二次衬砌混凝土裂缝成为带有一定普遍性的质量问题。
The seriously uneven settlement of soft ground causes tunnel wall crack after the completion of permanent tunnel lining.
某隧道在完成二次衬砌后,软弱地基产生不均匀沉降致使边墙严重开裂。
Considering the specialty and importance of underground structure, it is a very meaningful work to study the reliability of tunnel lining structure.
鉴于隧道与地下结构所具有的特殊性和重要性,对其开展可靠性研究是一项非常有意义的工作。
Do research on tunnel lining with no seepage and no leakage.
隧道不渗不漏衬砌施工技术研究。
This paper studies the temperature change of tunnel lining at the early stage, thus thermal stress of concrete.
本文主要研究隧道衬砌混凝土早期温度的变化,进而研究混凝土早期温度应力。
Tunnel depth, subway train speed, loading frequency, tunnel lining elastic modulus and other factors have great impact on the ground vibration.
隧道埋深、地铁列车运行速度、荷载频率、隧道衬砌弹性模量等因素对地面振动有极大的影响。
For lining seepage water of highway tunnel, the paper discussed how to strengthen waterproof, drainage design and construction quality control for reference.
隧道衬砌渗漏水是公路隧道的通病,应引起重视,在施工中应加强防排水设计与施工质量的管理。
Plate element is used to simulate tunnel lining, road slab and vertical brace, and spring element simulate the interaction between soil and tunnel.
文中隧道衬砌、路面板和竖向支撑用板单元模拟,土与隧道的共同作用用土弹簧模拟。
It has been shown that posture deviation (leading of a side) of lining rings is right the cause of continuous joint dislocation of tunnel lining with plan joint segments.
证明衬砌环的姿态偏差(侧超前)是引发常用平端面衬砌环隧道出现连续错台的直接原因。
The effects of grouting circle will not share the external water pressure with tunnel lining, but block groundwater and reduce the external water pressure on lining remarkably with low discharge.
注浆圈的作用不是分担衬砌外水压力,而是通过封堵地下水降低隧道涌水量,从而以较小的排水量可显著降低甚至消除衬砌的外水压力。
Through the study of early thermal stress of the concrete tunnel lining, we can provide an effective reference for tunnel Construction.
通过对隧道衬砌混凝土的早期温度应力的研究,能够对隧道施工提供一个有效的参考依据。
Up to now, the grouting method has been used to reinforce the tunnel lining and to prevent the water from leaking in the railway tunnel construction since 1950's.
用压注水泥砂浆的办法,对隧道衬砌进行补强和封水堵漏,从五十年代起,在铁路隧道施工中开始采用并沿用至今。
The calculation of structural load on the lining of tunnel with shallow overburden shows that the load on composite lining will be shared by primary support and secondary lining.
隧道衬砌在浅埋段的结构荷载计算表明,复合式衬砌中的初期支护和二次衬砌一般要共同承担荷载。
The key problem of the shield tunnel lining design is to confirm the soil pressure on the lining reasonably. It is the basic demand to design the lining structure safely and economically.
进行盾构隧道衬砌设计时的关键问题是合理地确定作用于管片上的土压力,它是衬砌结构设计安全且经济的基本要求。
And this paper analyzes the logical partition of the railway tunnel lining and the influence of structure internal force due to the different joint stiffness.
对铁路隧道的合理分块以及接头刚度对结构内力的影响进行了分析。
This paper deals with the design principle and design consideration of LTM car used for tunnel kiln. Some types of lining structure for LTM car are presented.
本文论述了低蓄热窑车的设计思想和设计所应该遵循的原则,并且介绍了低蓄热窑车的几种窑衬砖结构示例。
With high temperature and quick increase of temperature, the tunnel fire may do a heavy damage to tunnel lining and reduce the reliability of the structural system.
由于隧道火灾温度高,升温速度快,会对衬砌结构造成严重的损坏,并影响衬砌结构体系的可靠性。
With high temperature and quick increase of temperature, the tunnel fire may do a heavy damage to tunnel lining and reduce the reliability of the structural system.
由于隧道火灾温度高,升温速度快,会对衬砌结构造成严重的损坏,并影响衬砌结构体系的可靠性。
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