The level of silicon content in the limestone chemical composition on the hammerhead service life has a direct impact, the higher the silicon content, the shorter the hammer the life of the best-case scenario is less than 2% of silicon content in the limestone. The other hand, limestone compressive strength of high and low and hammer is closely related to life. The higher the compressive strength, fragile worse, the hammer will be a short service life.
Crusher hammer: hammer crusher hammer composite hammer crusher, sand making machine, hammer, hammer of crushing machine, crusher, hammer, etc., it's life with the following four factors:
Xingang Tianjin Binhai New Area on the 4th road tunnel is designed as dual ten lane viaduct piers and foundation due Jinbin Light effects , driveways not normally traverse . It is required to Tianjin - Binhai Viaduct 339 # ( brake pier ) and 340 # ( Shared pier ) pier for underpinning , underpinning φ2000mm using three and six φ1800mm bored bored . Where three φ2000mm bored pile length 90.00m, 6φ1800mm bored pile length 70.00m. Creepage piles located under the viaduct , viaduct bottom elevation of 10.00m ( Taku elevation , the same below ) , ground elevation of 3.00 ~ 3.50m.
Hangzhou to Lanzhou National Highway Traffic lines are "national key trunk road layout planning" key highway national road network " 13 vertical 15 horizontal" in a cross , is to connect China's eastern , central and southwestern regions of the important horizontal lines . Yunyang, Fengjie to Chongqing Expressway is a line in Chongqing , Hangzhou, Lanzhou important sections of the territory , but also the Chongqing Urban Planning of the " Ring 8 shooting " highway network, an important part. The construction of the project on improving the national trunk road network, improve traffic behind the Three Gorges reservoir conditions, implementation of the " western development " strategy is important.
With the rapid development of engineering construction , the construction of large-scale mines increasing wellbore excavation construction process is the key to building the mine , using a reasonable construction of the mine excavation method has important significance. So far, the drilling method is still one of the best methods of mine development , this construction method is all on the ground , people do not go down , safe and reliable.
In recent years , Tianjin urban infrastructure big leap in the speed of development, gradually expand the scale of the city , sewage emissions increase , coupled with the protection of water resources , rain sewers diversion , urban flood control capacity, the New Castle underground drainage network construction scale , greatly increasing every year . With the city traffic volume increased year by year , to increase the length and width of road , the road under the rain water pipe length is increasing in diameter increases to meet urban needs.