The invention relates to a turnover lowering device, a mounting method and a steel pipe construction method. When the main lifting mechanism lifts one end of the pressure steel pipe through the sling, the overturning and lowering device lowers the other end of the pressure steel pipe through the sling of the auxiliary lifting mechanism, so that the pressure steel pipe can be overturned by taking the first lifting point as a rotating center and lowering the second lifting point; the main truss can adapt to the position relation between the pressure steel pipe and the second lifting point after the pressure steel pipe is overturned, so that the pressure steel pipe can be overturned from a horizontal longitudinal placement state to a vertical or inclined state, and the position of the first lifting point can be changed through movement of the main truss; the pressure steel pipe can be longitudinally placed in the upper adit, is transported to the opening of the vertical shaft or the inclined shaft through the overturning and lowering device and then is overturned and lowered through the overturning and lowering device, the single-time transportation and installation length of the pressure steel pipe can be larger, the single-time installation length can be increased in the mode, the installation period is further shortened, and when the pressure steel pipe meets the ultra-long vertical shaft or inclined shaft, the installation efficiency is improved. And the construction period can be better guaranteed.
本发明涉及一种翻转下放装置、安装方法及钢管施工方法。翻转下放装置,在主起升机构通过吊索吊住压力钢管一端时,通过副起升机构的吊索下放压力钢管另一端,使得能够以第一吊点为转动中心,下放第二吊点使得压力钢管能够翻转,且翻转过程中,能够适应压力钢管翻转后与第二吊点的位置关系,使得可以从水平纵向放置状态翻转为竖直或倾斜状态,且能够通过主桁架移动改变第一吊点的位置;压力钢管能够在上平洞纵向放置并通过翻转下放装置运输至竖井或斜井洞口后,再利用翻转下放装置进行翻转和下放,压力钢管单次运输安装的长度能够更长,这种方式能够提高单次安装长度,进而缩短安装周期,遇到超长竖井或斜井时,施工工期也能更好的保证。
Turnover lowering device, mounting method and steel pipe construction method
一种翻转下放装置、安装方法及钢管施工方法
2024-07-30
Patent
Electronic Resource
Chinese
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