The topbeam shall be arranged on transverse partition boards within the box. the beam jacking process shall be slow so as to avoid uneven force bearing of jacks.
顶梁位置设在箱内横隔板上，顶梁过程应缓慢进行，防止出现千斤顶受力不均的情况。
2
With practical examples, installation of pier topbeam section to sum up the construction process, construction process and stressed the important and difficult.
结合工程实例，对墩顶梁段安装施工工艺进行总结，并强调施工过程中的重点和难点。
3
The reforming basic structure of HDJA-1000 metal hinge topbeam is introduced. Its various functions, better economy, stability and safety are expounded.
介绍了HD JA - 1000型金属铰接顶梁的改造基本结构，阐述了改造后在采煤工作面应用的多种功能，及其经济性、可靠性和安全性。