The top beam 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
This paper introduces the conditions of traditional and new paving benchmark, and expounds the structure principle and application results of the over-partition reference beam.