Novel method for the rapid construction of urban electrical undergrounds (metros).

摘要

With the rapid development of technology, the large-scale production and production cost of the epsilon__kappa-epsilon wheeled vehicles make her always approachable. (alpha gamma), even at low incomes.The result is that the height of the non road vehicles and sports is in the center of the city.Inevitably, a lot of traffic will be generated. ___and_____are "smog" with destructive effects on health and the environment.This is the question of making necessary and timely underground electric railways (MTR).Opening the tunnel is currently done through traditional methods and large depth surfaces.But this (as we mentioned and described) is a very slow process, which means huge costs.Slowly, it is not allowed to use a lot of mechanical equipment and labor in the way."The new method and intensity of rapid construction of urban electrified railway (subway)" is a completely new method.The shape of the open groove (___) so that at the appropriate depth, all procedures, i.e. with the appropriate material to stabilize the floor Mr. Use rollers and footing.The assembly of precast parts should follow (block).Ditch (PIT), open the following road, then turn the Volkswagen passenger vehicle. Oh