There are many factors influencing the placing quality of caisson such as bed leveling quality sea conditions as well as the level of placing equipments.
影响沉箱安装质量的因素很多，如基床整平的质量、海况的好坏、安装设备是否先进等。
2
Some influential factors on the design elevation for leveling a site and its revising steps to calculate the earthwork have been introduced.