A Application Research Of Flexible Protection Against Rock-Drops Of The Slope Of The Highway From Yanji To Tumen

With the development of the support structure in the slope structure, a new type of support structure that is the so-called flexible support system (including active and passive protection system) have been gradually accepted by the engineering practice, particularly in the areas of broken rock slope Application By the growing attention being. Before building support highway construction in many areas difficult to find quality masonry materials, but also a significant amount of labor, make these high cost of protection works. This article is based on plans to Yanji to more highway stones range from a height-to on the road, and the scope of decentralization, concrete spraying for very difficult, very difficult economic and other support to the flexible handling of the measures, To facilitate the construction of the project.And the traditional structure than the typical masonry, flexible protection system can not only serve to Masonry as the representative of the traditional role and to meet the aforementioned preventing and controlling geological disasters on the slope of the basic requirements of the new technology. Flexible protection system is divided into the active and passive protection systems. Active Protection System fixed by the bolt or support Rope impose certain preload of steel wire rope course and (or) grid network for the entire slope formation of support for a passive defense system to intercept and stockpiling rock-drop of flexible bar Shek network, its distinctive feature of the system is flexible and strength sufficient to absorb and disperse rock-drop suffered the impact of energy systems and the damage tends to be the smallest, has changed the traditional rigid structure of high-strength flexible structure. Papers were the basis of Yanji to map geological conditions along the road overall done a rope-related tests, experiments and cement mortar cement mortar physical and mechanical experiments proposed targeted flexible protection system design and construction technology. The main draw the following conclusions:1) through massive landslide and slope reinforcement of control measures, summed up the various measures to reinforce the application of different lithological the slope reinforcement and landslide control projects practice. Especially for prestressed cable technology for the classification and applicability of the exposition.2) plans to Yanji to the slope along the highway, according to slope to a reasonable request reinforcement measures, especially on broken rock to Yanji in the way of optimizing the structure design.3) compared the flexible support system and the general slope of the support system of governance effects of broken rock. The study used flexible support system to supporting slope, to be made by the management of disasters slope be resolved, not only rock-drop from the fundamental solution to the impact of disasters on the losses caused by road safety and protection of the ecological environment, and Investment relatively reasonable. Flexible protection system: the protection network coverage (active protection), passive defense network (stop-net), the weathered rock-drop, the collapse of a perilous rock fundamental protective role of governance, to improve the traffic environment of the system of convenience, security Convenience, not bound bylandscape terrain, not destroy landscape features, does not affect the normal traffic order and the short construction period. The study concluded that flexible protection system as a standardized, stereotypes of protection products, its construction conditions, the time limit requirement, near the building operating conditions, maintaining the latter part of the conditions, investment control, landscape requirements, such as a combination of factors, Reasonable selection and on-site layout, is extremely adaptive, suitable for a wide range of use.