Self-motion Temporary Support Structure Design And Mechanics Performance Research

This paper designs a new type of temporary support of roadway support, it is mainly used in roof is highly stable and half coal rock arch coal and rock roadway. The temporary support bracket novel structure, high reliability, good security, roadway face for construction personnel and construction equipment to provide a safe and reliable work space, and it can greatly improve the drivage efficiency. Support using the flexible beam design, to avoid the multiple support to the roof of the secondary damage, increased support for the suitability of the roof. Stents adopted since the move structure to achieve the mechanization of area of roadway supporting in advance. Front has the function of lift the bottom of the temporary support base jack, guarantee the smoothness of stent forward. Increased with automatic adjustment in web agencies, can adapt to different cross section of arch tunnel. Article using FLAC 3 d software, the roadway modeling analysis, the study concluded that the change of the stress and displacement of arch tunnels, provides the theoretical basis for the design of temporary support. This paper expounds the working principle of the temporary support bracket device structure and working process of the parts, the characteristics of using Pro/E virtual prototyping technology to modeling of temporary support bracket, to check interference, to prove the validity of the parts. Through the Pro/E virtual assembly, the feasibility of the validation work institutions. In order to verify the rationality of the design, through the theoretical calculation and computer simulation of a variety of methods for temporary support bracket key components, the strength and rigidity of bearing parts design is reasonable, turns out to support the overall structure is compact, the easy shift system, can very good play the role of cover of personnel and equipment, and can increase the speed of roadway drivage, for the realization of the roadway face created may fully mechanization and automation, has wide applicability and high economic benefits. Since the positionable temporary support bracket as technically advanced, safe and reliable working performance, is indispensable to realize the drivage mechanization and automation equipment.