Mechanical rock-digging method

Abstract

The invention discloses a mechanical rock-digging method. The mechanical rock-digging method comprises the following steps of: firstly punching a hole in rock, then inserting one end of a rigid rod piece into the punched hole, enabling the other end of the rod to expose out of the punched hole, then pushing and pulling the rod end exposing out of the punched hole along the smallest resistance line by using a machine, prying and breaking the rock and moving the rock by utilizing the rock, and enabling the rock to drop off. The mechanical rock-digging method adapted for breaking the rock is high in mechanical degree, high in rock breaking speed, high in working efficiency, few in site operators, convenient in management, only needs the common engineering machine and the rigid rod, is safe in operation and can be used for breaking and digging rocks, ore and concrete on and under the ground.

Description

technical field [0001] The invention relates to an earthwork engineering construction technology, in particular to a mechanical rock digging method. Background technique [0002] In order to avoid high-risk blasting operations, silent breakers or hydraulic hammers are often used in the prior art to break and excavate rocks and ores. However, there are some disadvantages in breaking rocks with the soundless breaking agent: (1) The soundless breaking agent needs to be mixed with water on site, which is not only cumbersome to operate, but also its operation is limited by the weather; (2) After the soundless breaking agent is poured into the drill hole , It takes several hours of chemical reaction to reach the highest expansion pressure, which is not conducive to rapid construction. At the same time, the temperature has a great influence on its chemical reaction speed, so it is not easy to control. The effect of using early, middle and late in a day is sometimes obviously diffe...

AI Technical Summary

Problems solved by technology

However, there are some disadvantages in breaking rocks with the soundless breaking agent: (1) The soundless breaking agent needs to be mixed with water on site, which is not only cumbersome to operate, but also its operation is limited by the weather; (2) After the soundless breaking agent is poured into the drill hole , it takes several hours of chemical reaction to reach the highest expansion pressure, which is not conducive to rapid construction

At the same time, the temperature has a great influence on its chemical reaction speed, so it is not easy to control. The effect of using early, middle and late in a day is sometimes obviously different, and it even needs artificial heating to use under low temperature conditions; (3) its expansion is very large. Small, it can only make a small crack in the excavated rock, and it is necessary to use machinery to further turn the cracked rock to shovel the formed rock blocks and gravel; (4) Only suitable for small diameter drilling , otherwise, when it expands, it is easy to be ejected from the drilling hole at high speed and lose its crushing effect, which not only causes waste, delays the construction period, but also may cause safety accidents

Even if it is used for drilling holes with a diameter not greater than 50mm, it is difficult to prevent the occurrence of this "spout hole" phenomenon; The distance can only take a small value, which makes its production efficiency very low and the cost of crushing is much higher than that of blasting; (6) It is corrosive to a certain extent, and it is necessary to wear protective eyes and protective gloves during operation, and even a mask when it is windy to prevent inhalation, etc.

The hydraulic hammer can only be used for rock excavation with low strength or developed joints and fissures, and its work efficiency is also very low

These make the above two methods unsuitable for a large amount of stonework excavation