unloading arch

On this condition,the paper introduces the unloading arch theory.

在此基础上,论述了卸荷拱理论。

Furthermore, the load transmitting mechanism of the reformed “unloading arch” was found in periodic loading on roof, then the new concept of load transmitting factor was put forward, and the amendatory .

通过动态载荷相似模拟实验,得出了厚沙土层浅埋煤层工作面顶板关键层载荷的“四区”分布规律,揭示了顶板结构中A、B和C关键块的动态载荷演化规律,发现了周期来压期间二次“卸荷拱”的载荷传递机理。

A study on relationship between the pressure and slab span of retaining wall in horizontal unloading arch was carried out.

就水平卸荷拱内挡土墙上压力与板跨之间的关系进行了研究 ,结果发现为了充分利用土体自承能力 (水平卸荷拱 ) ,板跨不宜过大。

This paper presents the structure of the scaffold, as well as setting precamber and decentering techniques.

对该支撑拱架的结构、预留拱度设置、拱架卸落等进行了介绍。

bottom arch bar

(拱板转向架)下拱板

The Simulated Analysis of the Control of Ultra-long Concrete Structure Crack and the Control of Removing Sunflower Type Arch Bridge's Scaffolds

超长混凝土结构裂缝控制与葵型拱桥落架控制仿真分析

Note: Fall protection must be worn by workers erecting and dismantling scaffolds when exposed to falls greater than6 feet.

注：当暴露于6英尺以上摔落危险时，安装和拆卸脚手架的工人必须穿戴摔落保护设备。

Experiment Study on Structural Performance of Beam String Structure;

张弦拱（拱架）结构性能的试验研究

Remove the windshield glass from the frame.

从框架上拆卸挡风玻璃。

Remove luggage rack from roo

从车顶拆卸行李架。

center bearing anchor bar

中摇枕拱板(三轴转向架)

yielding roadway arch

可缩性巷道拱形支架

articulated yielding arch

铰接可缩性拱形支架

Finite element analysis of foundation unloading and relaxation effects of Xiaowan Arch Dam

小湾拱坝坝基开挖卸荷松弛效应的有限元分析

The uppermost part of a column or pillar supporting an arch.

拱墩支撑拱架的圆柱或者柱子的顶端部分

The Construction Technology of CFST Rib of Frame Tied Arch Bridges;

刚架系杆拱桥钢管混凝土拱肋施工技术

Analysis of Rigid Frame Arch Bridge Strengthening by Arch and Cable System and Its Experimental Study;

拱索体系加固刚架拱桥的分析及试验研究

The stability analysis of large span steel light arcuated arch frame construction stage

大跨度钢质轻型拱式拱架施工阶段稳定性分析

A wooden frame built especially to support the sides of an arch until the keystone is positioned.

支拱板条专门用来在拱顶石放置好以前支撑拱的两边木架子

Study of Consociation Functions of Arch Ring and Arch Centering in Concrete Box Shape Arch Bridge Cast-in-place Construction

混凝土箱形拱桥现浇施工拱圈与拱架联合作用研究

raise/lower the undercarriage

收起[放下]起落架.