Stone saw definition

Stone saw is a method of cutting rock into certain shape and fragmentation by means of mechanical saw, wedge splitting and blasting, and separating it from rock mass. The rock obtained is used as a block material for masonry and decoration materials of civil engineering works. Stone is used in civil engineering for thousands of years. The foundation, the stone and the railing of the the Imperial Palace in Beijing, Egypt, the the Imperial Palace of China, and the stone archway of the Ming Tombs are all carved with stone blocks of different sizes. But it has only a hundred years history to form a complete stone industry system. Modern new building materials (such as cement) have replaced stone in a wide range, but some permanent buildings, important public and social buildings still need a large number of natural stone as decoration materials and wall materials. Such as China's cloud flower, white jade, Dandong green, Hangzhou ash, Italy's Sina golden yellow marble, and African blue granite, are all the best selling products on the international market, and their demand is growing.

The magmatic rocks that can be used for structural or decorative materials include granite, andesite, rough rock and diabase, including limestone, dolomite, tuff, clay rock, sandstone and shale, and metamorphic rocks with marble and slate.


Most of the stones are open pit mining, and the stripping works are not large. The development mode of the deposit is mainly by no ditch development. The mining process includes separation, decomposition, dressing and loading. The large rocks of tens to hundreds of cubic meters are separated from the rock mass, and the large rocks are divided into small pieces of solid waste material, which are repaired, shaped and loaded. The remarkable feature of stone stoping is to make full use of the structural characteristics of rock. For example, sedimentary rocks are mainly bedding structures and suture structures and fractures, and magmatic rocks are joints, flow surfaces, streamlines and streamlines, and the foliation and massive structures in metamorphic rocks. The key to reduce the cost of stone production is to ensure the quality of stone, improve the yield of sheet metal, reduce the mechanical workload and improve the mining efficiency. The layout of the working face is mostly parallel to the direction of fracture or joint, and the height of the mining layer is mainly determined by bedding or crack spacing.