annular pack meaning in English
环空充填
Examples
- Through simulating model tests of shield tunnel passing through the yellew river in the diversion project from south to north china , a systematic analysis on the primary factors affecting joint stiffness , including arrangement of joint bolt , thickness of annular packing of bolt , behavior and thickness of cushion material between two tube plates , magnitude of prestressing force of joint bolt and different stressed states at tube plate joint etc . , are performed . the study results may provide reference for tube plate design of shield tunnel
通过南水北调穿黄盾构隧道仿真模型试验,对影响接头刚度的主要因素即连接螺栓的布置、螺栓垫圈的厚度、管片与管片之间垫层材料的性能和厚度、连接螺栓的预紧力的大小及管片接头不同的受力状态进行了系统的分析,为盾构隧道管片设计提供了参考。 - Designning well tube and drill - hole diameter in order to increase thickness of both annular packing gravel and water - resisting clay , nylon net packing around well tube filters , designing filter layer on the boundary between packing gravel and water - resisting clay and ramming the gravel by working the piston into the well after gravel packing completion and the filling clay for salt - water resisting etc . we succeeded in constructing 3 drinking - water wells in minqin county , proved the affectivity and feasibility of using it and giving a certain technical demonstration of construction of drinking - water well in the same similar to this area
通过孔径与管径的调配设计，增大环状粒料层和止水粘土层的厚度；滤水管外包尼龙纱网；粒料与止水粘土接触界面上设计反滤层；填粒后先行拉活塞利用水力夯实粒料层，再投粘土球止掉上部咸水等措施，在民勤县三口人饮水井施工中取得显著效果，证明了该套成井工艺的有效性和可行性，有望为同类地区人饮水井施工提供技术示范作用。 - Abstract : through simulating model tests of shield tunnel passing through the yellew river in the diversion project from south to north china , a systematic analysis on the primary factors affecting joint stiffness , including arrangement of joint bolt , thickness of annular packing of bolt , behavior and thickness of cushion material between two tube plates , magnitude of prestressing force of joint bolt and different stressed states at tube plate joint etc . , are performed . the study results may provide reference for tube plate design of shield tunnel
文摘:通过南水北调穿黄盾构隧道仿真模型试验,对影响接头刚度的主要因素即连接螺栓的布置、螺栓垫圈的厚度、管片与管片之间垫层材料的性能和厚度、连接螺栓的预紧力的大小及管片接头不同的受力状态进行了系统的分析,为盾构隧道管片设计提供了参考。