1) anchor bolt-shotcrete tunnel support and secondary lining
锚喷支护与二次衬砌
2) secondary bolt/shotcreting support
二次锚喷支护
1.
Technique of secondary bolt/shotcreting support for deep rock roadway,with the East Main Roadway deep to 1 300 m in Suncun Coal Mine as an example,was analyzed.
结合深部岩巷的实测数据,采用FLAC2D数值分析软件,从顶底板和两帮收敛变形、塑性区、围岩最大主应力、锚杆内力等方面比较了二次支护技术优于传统的一次锚喷支护技术,表明二次锚喷支护技术能有效地解决深部高地应力巷道围岩难支护的技术问题,使不同位置锚杆的荷载和围岩应力场均匀化,实现了支护结构与围岩的动态耦合。
3) composite lining's secondary support
复合衬砌二次支护
4) support lining
支护衬砌
1.
Demonstration of comparison on changed equipment selection for TBM and support lining;
变更TBM设备选型和支护衬砌方式的比较论证
2.
The application of pressed grouting bolt in the project segment support lining
压力注浆锚杆在某工程管片支护衬砌中的应用
5) lining support
衬砌支护
1.
Measure with lining support based on presupport technique is present- ed in terms of the surrounding rocks features including large deformation and high site stress.
针对宜万铁路堡镇隧道存在的软岩地质高地应力问题,结合地质勘察资料和现场监测资料,对堡镇隧道围岩的变形破坏特征进行了深入探讨;并根据该隧道软岩大变形、高地应力的特点,提出了基于预支护技术的衬砌支护措施。
2.
By means of numerical simulation software ANSYS,the deformation regularity of bolting support and concrete lining support for deep roadways is numerically simulated.
采用大型有限元数值模拟软件ANSYS,对深部巷道锚杆与混凝土衬砌支护前后围岩变形规律进行了数值模拟,对不同支护后围岩位移及塑性区的变化情况进行了系统分析。
6) second lining
二次衬砌
1.
Construction technique of the second lining of the large cross-section of subway crossing area;
地铁交叉口大断面二次衬砌施工方法
2.
Through observation in field of the shallow highway tunnel lining in loess, authors research the change of the surrounding rock pressure on tunnel lining, the axial force of lattice girder and the strain of second lining to the time and the distribution in different positions.
通过对浅埋黄土公路隧道衬砌受力现场测试,研究了隧道衬砌围岩压力、钢花拱轴力和二次衬砌混凝土应变随时间变化以及不同位置分布情况。
3.
The paper introduced the quality control of tunnel second lining construction.
质量是工程建设的关键,确保工程质量,是监理工作的核心,必须对二次衬砌进行全过程控制。
补充资料:喷锚支护
喷锚支护 combination of anchorage and shotcrete support 把锚固和喷混凝土结合起来,用以加固地下洞室围岩的措施。喷混凝土是利用喷浆设备向地下洞室开挖面喷一定厚度的混凝土层,借以支护围岩。由于混凝土喷层密贴围岩,并具柔软性等特点,所以能承受较大荷载,并能控制围岩变形,充填胶结岩体表层裂隙,保护和发挥岩体的潜力。喷混凝土可以作为洞室围岩的初期支护,也可以作为永久性支护。喷锚支护是使锚杆、混凝土喷层和围岩形成共同作用的体系,防止岩体松动、分离。把一定厚度的围岩转变成自承拱,有效地稳定围岩。当岩体比较破碎时,还可以利用丝网拉挡锚杆之间的小岩块,增强混凝土喷层,辅助喷锚支护。 |
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参考词条