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2021
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01
(II) on the application of domestic tunneling trolley in overseas Chinese funded mines
In order to solve the problem of local employment, Tajikistan requires a ratio of 3:7 employees in the development contract. Because the economy in the mining area is mainly animal husbandry, there is basically no industry, and the local people have low industrial quality. Although they can be engaged in underground operations after training, they are mainly some auxiliary jobs. Some technical jobs such as rock drilling, operation and maintenance are mainly Chinese employees.
Excerpted fromHuang Fenghui's Articles
The Inevitable Choice of Mechanization of Rock Drilling
Mandatory provisions for international cooperation
In order to solve the problem of local employment, Tajikistan requires a ratio of 3:7 employees in the development contract. Because the economy in the mining area is mainly animal husbandry, there is basically no industry, and the local people have low industrial quality. Although they can be engaged in underground operations after training, they are mainly some auxiliary jobs. Some technical jobs such as rock drilling, operation and maintenance are mainly Chinese employees.
After the disintegration of the Soviet Union, Tajikistan advocated "de-Russianization". Its mother tongue was Tajikistan (small language), Russian education was weakened, English popularization was low, and communication between Chinese and Tajikistan employees was difficult. To a certain extent, it inhibits the number of tower workers to recruit. In order to achieve the legal proportion of employees in the tower, only to reduce the number of Chinese employees, the selection of jumbo drilling is a more feasible way. If rock drilling, charging and blasting operations are also completed, the trolley (HT81) shall be equipped with 2 operators (Chinese employees) and 6 auxiliary workers (tower employees) per vehicle, completing 4 cycles per day, with a footage of 3m per cycle and a footage of 6m per person day (Chinese employees); The hand-held drilling capacity is 2 drillers (Chinese employees) and 1 auxiliary worker (tower employees) per shift, complete 1.5 cycles per day (labor intensity is high), with a footage of 2m per cycle and a per capita footage of 1.5m/person-day, so the efficiency of the trolley is 4 times that of the hand-held drill. In addition, the ratio of employees in the tower of the trolley is 1:3, while the ratio of employees in the tower of the drill is 2:1.
Domestic staff costs are too high
The quality of domestic staff can meet the production needs, but the cost is high. The user unit is responsible for visa, return of air tickets, vacation salary (2 times/year), and the usual salary is also 10-12 times that of tower workers. Labor wages account for a large proportion of costs. Under the premise of meeting production needs, the use of tower workers can greatly reduce production costs. The use of jumbo rock drilling instead of hand drilling, auxiliary workers by tower workers, neither affect production, but also increase the proportion of tower staff.
Safety management needs
Although the stability of ore rock is good, there are many bare roadways including the main transportation roadway. The excavation and drilling operations are carried out under the exposed roof, and the roof management pressure is large. If the degree of mechanization of each process is high, the number of underground workers can be reduced or the working environment can be improved, that is to say, the probability of accidents will be controlled to a minimum. And when the trolley is operating, the driver's operating position is far away from the working face and works under the protective cover, which prevents the empty roof operation and is conducive to safe production.
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