Transportation system and construction method for inclined shaft with small section and long steep slope

Abstract

The invention discloses a transportation system and a construction method for an inclined shaft with a small section and a long steep slope, and relates to the technical field of underground inclined shaft engineering construction. The transportation system for the inclined shaft with the small section and the long steep slope can ensure the engineering safety, save the construction cost, and is high in construction speed. According to the technical scheme of the transportation system for the inclined shaft with the small section and the long steep slope, a slag-raking machine is placed at the working face in an entrance section of the inclined shaft, a slag unloading platform is arranged at the entrance of the inclined shaft, a fixed pulley and a lifting device are mounted on one side, opposite to the inclined shaft, of the slag unloading platform, and a steel wire rope of the lifting device penetrates through the fixed pulley, and is connected with a mine truck in the entrance section of the inclined shaft; and a slag-raking machine is placed at the working face in an exit section of the inclined shaft, the tail part of the slag-raking machine is provided with a winding engine, and a steel wire rope of the winding engine is connected with a slag carrying truck. According to the construction method for the inclined shaft with the small section and the long steep slope, the inclined shaft adopts blasting construction in the whole sections, excavation construction is conducted on the entrance and the exit of the inclined shaft synchronously, so that the engineering safety is ensured, the construction cost is saved, and the construction period is shortened at the same time.

Description

technical field [0001] The invention relates to the technical field of underground inclined shaft engineering construction, in particular to a transportation system and a construction method for an inclined shaft with a small section and long steep slope. Background technique [0002] In hydropower and water conservancy projects, spillway tunnels are arranged in mountains, which often have the characteristics of small cross-section, long distance and steep slope, and involve the excavation of inclined shafts. For example, the spillway tunnel of a certain hydropower station is arranged in the left bank of the mountain. The plane is straight and the total length is 305m. The longitudinal slope layout of 1:4.325 is adopted inside, and the chainage 0+0~0+3.38 adopts the form of dragon head. [0003] The end face of the spillway is small, and the distance is long, the slope is steep, and the excavation construction of the inclined shaft has limitations. In addition, the complex ...

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Problems solved by technology

[0003] The end face of the spillway is small, and the distance is long, the slope is steep, and the excavation construction of the inclined shaft has limitations. In addition, the complex geological conditions and the harsh environment make the construction extremely difficult

Using conventional excavation and transportation methods, there are problems such as long construction period, air pollution in the well, unsafety, high cost, and difficulty in guaranteeing project quality

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