The buried pipe transfer equation, the frequency character and the attenuation equation of the leak signal are studied.
研究了埋地管道泄漏信号波的传播方程,泄漏信号频率特性以及衰减方程。
In the same time, the strain of seismic isolation pipe segment is compared with the strain of buried pipe across the fault.
同时将隔震管段应变值与跨断层埋地管道的应变值进行了比较分析。
The temperature field around a straight buried pipe was analyzed using conformal mapping, separation of variables and boundary discretization. A series solution was obtained for the temperature field.
为了对直埋管道保温层及其土壤邻域的温度场进行较精确的分析,采用保形映射、分离变量和边界离散法对地下直埋管道的温度场进行分析,得到了级数形式的解。
The ground deformation caused by earthquake, soil differential settlement often induces damage of the buried pipe due to pipe-soil interaction.
由于埋地管道与土体之间存在管、土相互作用,地震、地面不均匀沉降等地层变形均会导致管道受力、变形而被破坏。
This article proposed the research technique and the achievement, will provide certain theory basis and the reference function for the buried pipe line mechanics shape question「s further research.
本文提出的研究方法和成果,将为埋地管道的力学形状问题的进一步研究提供一定的理论依据和参考作用。
Water pressure in buried pipe is mainly suppuorted by concrete surrounding on pipe, as plastic of concrete considered, it」s bearing capacity can raise to 1.7-2.5 time…
坝内埋管的内水压力大部分由外围混凝土承担,考虑混凝土塑性后,其承载能力可提高1.7~2.5倍。
Abstract: To improve the safety of prefabricated buried pipe insulation and study the friction of the insulation to pipe.
摘要:为提高预制直埋保温管安全性,研究保温层对钢管的摩擦作用力。
The research contents and results were as follows:(1) With FEA method, the effects of various groundsill character, pedestal angle and ground pressure on the limit load of buried pipe were studied.
通过有限元计算分析,研究了不同地基性质、支座包角和地面载荷对埋地管道极限载荷的影响。
The results show that the buried pipe ventilation system can improve indoor thermal comfort in hot climates.
结果表明,埋管系统通风降温可以改善炎热地区的室内热舒适性。