1. Principles of construction sequence arrangement The construction sequence of mining engineering should follow the principle that the construction period is the shortest, the economic and technical is reasonable, the construction is feasible, and the best economic benefits can be obtained under specific engineering conditions, mine geology and hydrogeological conditions. .
For example, high gas mines should use downhill excavation to facilitate gas management and save ventilation costs. Mines with large water inflows use uphill excavation to save drainage costs and speed up construction. The key points of the project on the key route should be selected at the best. s position. The practice of building wells over the years has proved that when using well towers and multi-rope wheel hoists, the amount of civil engineering and mechanical and electrical equipment installation is relatively large and the construction period is long; when the construction is completed in the later stage of construction, the work is concentrated and time is tight. It is also affected by design, equipment, climate, etc., so special attention should be paid to the rational arrangement and cooperation of such projects.
2. Key points of construction sequence of mining engineering (1) Preferred construction plan The main factors determining the construction plan of the wellbore include the geological and hydrological conditions of the wellbore passing through the stratum, the amount of water inflow; the size and dimensions of the wellbore design, the supporting method, the construction technical equipment conditions and Construction process possibilities, construction team technical level and management level, under the conditions of ensuring construction safety and quality requirements, consider technological advancement and economic efficiency conditions. It is generally required that the wellbore construction plan should have an advanced average monthly well formation speed.
(2) The principle of reasonable queuing construction team arrangement is to first determine the possible working surface according to the working capacity of each link in the construction period, including improving transportation capacity and ventilation capacity, and specifically arranging the excavation team; At the same time of each construction link and system, consider the balance of the construction team to avoid excessively frequent construction team deployment and personnel increase and decrease.
For example, high gas mines should use downhill excavation to facilitate gas management and save ventilation costs. Mines with large water inflows use uphill excavation to save drainage costs and speed up construction. The key points of the project on the key route should be selected at the best. s position. The practice of building wells over the years has proved that when using well towers and multi-rope wheel hoists, the amount of civil engineering and mechanical and electrical equipment installation is relatively large and the construction period is long; when the construction is completed in the later stage of construction, the work is concentrated and time is tight. It is also affected by design, equipment, climate, etc., so special attention should be paid to the rational arrangement and cooperation of such projects.
2. Key points of construction sequence of mining engineering (1) Preferred construction plan The main factors determining the construction plan of the wellbore include the geological and hydrological conditions of the wellbore passing through the stratum, the amount of water inflow; the size and dimensions of the wellbore design, the supporting method, the construction technical equipment conditions and Construction process possibilities, construction team technical level and management level, under the conditions of ensuring construction safety and quality requirements, consider technological advancement and economic efficiency conditions. It is generally required that the wellbore construction plan should have an advanced average monthly well formation speed.
(2) The principle of reasonable queuing construction team arrangement is to first determine the possible working surface according to the working capacity of each link in the construction period, including improving transportation capacity and ventilation capacity, and specifically arranging the excavation team; At the same time of each construction link and system, consider the balance of the construction team to avoid excessively frequent construction team deployment and personnel increase and decrease.
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