1 results about "Outcrop" patented technology

The invention discloses a method for obtaining a tunnel excavation face surrounding rock point cloud model. The method comprises the following steps: (1) selecting camera parameters according to the tunnel environment; (2) selecting shooting time according to a tunnel construction procedure; (3) selecting a shooting mode, a shooting position and a mark point position according to the excavation length; (4) selecting shooting parameters according to the environment of the tunnel excavation section; and (5) acquiring a surrounding rock image set after tunnel excavation, and processing the imageset to obtain a three-dimensional point cloud model of the surrounding rock after tunnel excavation. Compared with the prior art, the method has the advantages of being rich in collected data size, low in cost, rapid to operate, high in flexibility and the like, a geological engineer can directly shoot and record when observing surrounding rock through geological sketch after excavation, the siteconstruction progress is not affected, shooting personnel can flexibly change the shooting angle and position, and the problem that rock outcrop is mutually shielded is solved as much as possible.