Space-time conversion exploitation method for high and steep rock slope stock ground near river

Abstract

The invention relates to a space-time conversion exploitation method for a high and steep rock slope stock ground near a river, aiming at the situation of very hard exploitation condition with steep terrain in the direction along the river of the high and steep rock slope stock ground near the river, and the gradient along the river is more than 50 degrees. In the invention, terrain creases on the halfway up the mountain are sufficiently utilized according to the principle of space-time conversion; a ballast cutting slot is excavated in advance in the direction along the river of a strip stock ground, and ballast storing space is reserved on the upper part of the high and steep rock slope yard near the river; and the vertical excavation and transportation with extreme difficulty of the upper part of the yard is converted to the relatively easy horizontal space excavation and transportation with excavating ballast materials on the upper part and sliding to the creases on the halfway upthe mountain. A winze is arranged in the proper position of the ballast cutting slot, and excavated materials slide to smashing equipment through the winze to be smashed. A ballast blocking pit is reserved outside the ballast cutting slot and is heightened, and a high stone blocking pit is arranged at the foot of the mountain along the river for preventing rock ballast from rolling to the river. The invention achieves the goals of preventing river jam and ensuring the safe and normal excavation of the high and steep rock stock ground.

Description

technical field [0001] The invention relates to the mining and construction field of a high and steep rock slope stockyard near a river of a hydropower station. technical background [0002] With the extension of hydropower development to the alpine and canyon regions in the west, choosing the high and steep rocky slope stockyard near the river as the source of concrete aggregate for the dam has become the only choice for the "granary" of the dam. Linjiang high and steep rock slope stockyards are often located in the side canyons of large rivers that are being developed. The topography of the stockyards is often a slope along the river, with a slope of 50° or even steeper near the river. In order to prevent the stones mined in the high and steep rock slope material field from falling into the river and blocking the river water, the traditional blasting mining method directly facing the river cannot be used in mining; due to the steep terrain of the high and steep rock slope ...

AI Technical Summary

Problems solved by technology

In order to prevent the stones mined in the high and steep rock slope material field from falling into the river and blocking the river water, the traditional blasting mining method directly facing the river cannot be used in mining; due to the steep terrain of the high and steep rock slope material field, it is impossible to form a conventional There is an urgent need to find a new, safe and effective mining method to convert the difficulty of mining in the vertical space of the high and steep rock slope material yard near the river to the relatively easy mining of the horizontal space. Transportation to ensure the progress of the project

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