After the construction by the shielding method, the tunnel method of the tunnel and the iron segment

摘要

The present invention relates to a method of expanding a necessary part after constructing a tunnel by carrying out a shielding method, and a construction of a steel segment and a concrete segment which are required for the expansion method.;In the conventional tunnel, a large space is required for the line connection structure of the railway or electric power. In order to solve such a problem, the required area is reinforced by the ground and excavated from the ground. However, this method has caused great obstacles to the surrounding obstacles and traffic The cost of construction is very high and the construction period has been naturally extended. Also, if you use reamer, it is not enough to use in a narrow space, and there are a lot of problems in construction cost and working method.;In order to solve this problem, in order to solve this problem, in the construction of a tunnel by a known shielding method, an iron segment is installed in a section to be expanded, and after the ground reinforcement cement solution is injected, As shown in the drawing, after excavating the surrounding area, reinforcing steel reinforcement is placed on concrete to form an integral concrete structure, and a method of securing the tunnel after the shielding, a concrete segment embedded with nuts and a vertical or inclined injection It consists of a steel segment with a tube, which is a necessary invention to form a large space in the tunnel.