This article introduced field assembly of large-scale towers adopting jack,the welding of the shell,heat treating and hydrostatical test. 介绍了大型塔器现场采用千斤顶进行组对、焊接、热处理、水压试验,同时对如何解决塔段出现椭圆变形超标的问题进行阐述。
With the ship's hydrostatical theory, the methods for calculating the vertical degree and the dynamics are given.The state equation of the floating dock is obtained. 以船舶静力学为依据，分析了船舶下排浮船坞时浮态的计算方法，给出了浮船坞纵倾及吃水动态力学方程，得出了可用于实时控制的浮船坞状态方程。
The stresses in salt rock surrounding a cavern are lower than those in the virgin ground and with distribution as hydrostatical pressure surrounding a pumping well. 盐岩洞室周边附近区域内围岩的应力较低,其分布呈现出抽水井附近的水压力特征。
It was shown that the cut opening space length varied with the severing location, and the normal hydrostatical test mainly brought about the redistribution and decrease of the residual stress. 结果表明:切口位置不同,切口张开间距不同;正常的水压试验有一定的降低残余应力的作用,但主要是引起了焊管内部残余应力的重新分布;
