What does it mean to open a new pit in the novel?
Creating a new plot in a novel usually referred to the author starting a new storyline based on the existing plot of the novel and forming a new storyline. The purpose of creating a new pit was to give readers a fresh reading experience, make the story more colorful, and at the same time, bring more inspiration and motivation to the author. Usually, a new story would be more interesting than the existing one and attract the readers 'interest. It might continue the development of the existing story or continue to be written on the basis of it. However, there might be some problems with creating a new story. For example, the author might make negligence, mistakes, or shortcomings in the creative process, causing the new story line to be incoherent or incomplete. In addition, new works might also affect the progress and ending of existing works, causing unnecessary trouble for readers.
What does it mean to open a new pit in the novel?
In novels, creating a new plot usually referred to creating a new plot or unfolding one of the plots and starting a new chapter. This kind of behavior was often seen as a continuation of an existing work or a continuation of a reader, so it was often called a scam or a continuation. It was a common phenomenon to create a new plot, character, and plot in the process of writing a novel, and to reimagine the entire story line. This kind of behavior could also attract more readers to pay attention to their works. Of course, there were some. No matter which method he chose, it would be a loss for him.
What does it mean to open a new pit in the novel?
In novels, creating a new trap usually meant that a new storyline or character setting would form a new storyline and bring a new experience to the readers. Sometimes, a new trap would suddenly be opened to allow the character to continue developing, and the plot would also unfold. Doing so could surprise and anticipate the readers, and at the same time, help them. However, sometimes a new plot could be created because they needed to take a break or reimagine the story. Under such circumstances, opening a new pit could also be seen as a kind of creative adjustment. New traps in novels could bring new surprises and experiences to the readers as well as help them.
What does it mean to open a new pit in the novel?
A new plot in a novel usually meant that the author suddenly stopped writing and started a new story at the climax of the novel. The new story usually had some connection with the previous story, but it would also change a lot. This style of writing was usually used to make the novel more colorful, and sometimes to make the readers feel fresh. However, there were also times when authors would create a new scam just to make money, not caring about the quality of the novel.
What did he mean by a new pit and an old pit?
New and old pits of jade were used to describe the difference in the quality of the jade excavated at different times during the jade mining process, which was the difference between a hole and a good one. The new pit referred to the newly mined jade. As the jade had just been excavated, its texture was relatively poor. However, as time passed, the jade would gradually become purer and of better texture. Old pits referred to jade that had been mined for a long time. Due to the influence of geological environment, temperature, humidity, and other factors, the quality of the jade would gradually decline and become worse. Therefore, the meaning of the new pit and old pit of jade was to describe the change in the quality of jade mining. At the same time, it also reminded readers to pay attention to the quality and source of jade when reading novels or watching movies and television materials to avoid buying jade products of poor quality.
Open pit mining method
The open-pit mining method mainly included the technological processes of drilling, blasting, mining, transportation, and rock discharge. Piercing work was the primary process of open-pit mining. It was done by a down-the-hole drill or a roller drill to control the ore grade and improve the blasting quality. Explosions were used to blast rocks or rock formations to facilitate subsequent mining operations. Mining and transportation was the transportation of ore from the open space to a designated location. It was usually operated by excavators, cars, electric vehicles, and other equipment. Rock removal was to remove the rocks or rock layers produced during the mining process to maintain the unobstructed flow of the mining area. The open-pit mining method has the characteristics of large mining space, excellent working conditions, high labor productivity, and low mining costs.
Open pit mining process
The mining process of open-pit mines included drilling, blasting, shoveling and loading of ore (rock), transportation of ore and rock, and discharge of rock. Piercing was the primary process of open-pit mining. Its purpose was to provide holes for blasting to store explosives. The quality of the piercing was directly related to the efficiency of the subsequent blasting, mining, crushing, and other work. There were two methods of piercing: thermal piercing and mechanical piercing. Commonly used drilling equipment is divided into shallow hole drill (rock drill and rock drilling jumbo) and deep hole drill (roller drill and down-the-hole drill) according to the depth of drilling. Explosions were the key to the mining of open pits. The rocks were broken through explosions to facilitate the subsequent mining and transportation. The shoveling of ore (rock) was to load the blasted ore or rock into a transportation tool, such as a truck or a conveyor belt. The transportation of ores and rocks was to transport the shoveled ores or rocks to a designated location. The common transportation methods were trucks and tape conveyor. Rock discharge was to discharge the ore or rock from the transportation tool for subsequent treatment or processing. In general, the open-pit mining process was a continuous process, and each link played an important role.
What are the conditions for open-pit mining?
The conditions for open-pit mining included the following aspects: First, the coal seam must be continuous and stable to ensure that there would be no safety problems such as collapses during the mining process. Secondly, the stripping ratio needed to be appropriate, which was the ratio of the amount of soil and rock that needed to be stripped to the amount of ore mined per ton of ore. In addition, the comprehensive mining technology of the open-pit coal mine also needed to meet the mining conditions. In addition, mining open-pit coal mines also required a series of qualifications, including business license, mining license, safety production license, land certificate, and so on. At the same time, he also needed to apply for an environmental impact assessment report, approval documents from the environmental protection department, and a pollution discharge permit or pollution discharge registration form. Finally, the mining of open-pit coal mines also required the selection of appropriate mining methods according to the distribution of the deposit, such as continuous mining, intermittent-continuous mining, and intermittent mining.
Open pit mining methods and methods
The mining methods of open-pit mines included mechanized mining methods and non-mechanized mining methods. Mechanized mining methods mainly used mechanical equipment for mining, such as excavators, cars, electric vehicles, bulldozers, etc. The non-mechanized mining method used manpower or a combination of human and animal power to mine. According to the stope form of the stripping material, there were mainly pit mining methods and in-place mining methods. Pit mining methods included top-down mining, stone mining, spiral drilling mining, water jet mining, etc. In-place mining methods included in-place extraction mining. According to the location where the stripping was discarded, it could be divided into inner discharge mining method and outer discharge mining method. Internal drainage mining methods included toppling mining and digging mining. According to the mining technology, open-pit mines could be divided into mechanical mining and hydraulic mining. The hydraulic mining was only suitable for mining soft deposits, while mechanical mining was a widely used mining method in open pit mines.
technical requirements for open-pit mining
The open-pit mining operation mainly included the processes of drilling, blasting, mining, loading, transportation, and dumping. According to the continuity of the work, it could be divided into intermittent, continuous, and semi-continuous. For different types of deposits, the mining technology requirements were different. Among the mining methods for flat deposits (the dip angle is generally less than 12°), the intermittent mining process is suitable for various geological ore and rock conditions; the continuous mining process has high labor efficiency and is easy to realize the automatic production process, but it can only be used for soft ore and rock; the semi-continuous mining process has the characteristics of the above two, but in hard rock, it needs to increase the link of mechanical crushing of rock. In the top-dump mining method, the characteristics of mechanical shovels and draglines should be considered to reasonably arrange the equipment combination. For example, when stripping high steps, due to the relatively light dragline shovel, the dragline shovel should be used more often. According to the needs, a mechanical shovel with a dragline shovel, two draglines with each other, or only one dragline shovel as a secondary top-dump plan could be used. The horizontal mining method had to consider the restrictions of the specifications of the stripping material transportation equipment (such as the dump bridge and the boom dump truck) on the spatial relationship between the stripping bench and the mining bench. In addition, different mining technologies had certain requirements for equipment, such as the drilling diameter of large-scale high-efficiency roller drills reaching 380 - 444mm; the charging vehicle that could mix cheap explosives and waterproof explosives on the spot; the mechanical shovel, the hydraulic shovel, and the front loading machine must have suitable bucket capacity; the electric locomotive, traction unit, self-tipping car, and dump truck must have suitable load capacity; and there must be corresponding bulldozers, shifters, graders, scrapers, and other supporting equipment. In the mining process, the optimization of relevant economic indicators such as production stripping ratio and bench height, as well as the balance and control of resource recovery rate, mining cost, mining efficiency, etc. needed to be considered. If you want to know more about the follow-up, click on the link and read it!
Safety regulations for open-pit mining
The safety regulations for open-pit mining included many aspects: ** I. Safety Requirements for the Formation of Steps ** 1. ** Production bench height **: There is a clear regulation. If the height of the bench after the completion of mining exceeds the regulation, it needs to go through technical demonstration and be determined by the design on the premise of ensuring safety. 2. ** Explosive pile height during shoveling **: When shoveling with an excavator or a shovel, the explosive pile height should not be greater than 1.5 times of the maximum excavation height of the machine. 3. ** Regulations on non-working steps **: The final slope angle and minimum working platform width of non-working steps shall be specified in the design. Mining and transportation equipment, transportation routes, power supply and communication lines shall be set within the stable range of the working platform. The distance between the edge of the explosion pile and the central line of the standard gauge railway shall not be less than 2.5m, the distance between the edge of the explosion pile and the central line of the narrow gauge railway shall not be less than 2.0m, and the distance between the edge of the explosion pile and the edge of the car road shall not be less than 1m. ** II. Safety Requirements for Piercing Operation ** 1. ** When the drilling machine stabilizes the vehicle **: It should maintain a sufficient safe distance from the top line of the step slope. The minimum distance between the center of the jack of different types of drilling machines and the top line of the step slope is different (for example, the distance between the jack center of the trolley is 1m, the distance between the roller drill, the down-the-hole drill, and the wire rope impact drill is 2.5 m, and the distance between the soft rock mass and the rock mass is 3.5 m). There should be no cushion stone under the jack to ensure the stability of the step slope. No one should be on the platform when the drilling machine is working. Non-operating personnel should not stay around. The drilling machine and the electric shovel near the bottom line of the slope should not work at the same time. If the machine is shut down for a long time, cut off the power supply on the machine. 2. ** When drilling the first row of holes **: The angle between the central axis of the drilling machine and the top line of the step slope should not be less than 45°. 3. ** When the drilling machine is walking near the edge of the step **: Check whether the walking route is safe. The minimum distance between the protruding part of the outer side of the drilling machine and the top line of the step slope is stipulated for different types of drilling machines (for example, the minimum distance between the protruding part of the outer side of the trolley and the top line of the step slope is 2m, and the minimum distance between the protruding part of the outer side of the roller drill, DTH drill and wire rope impact drilling machine and the top line of the step slope is 3m). 4. ** When the drilling machine is moving **: There should be someone under the machine to guide and supervise it. It is not advisable to walk on the slope with a slope of more than 15°. If it is more than 15°, put down the drilling frame, assign someone to command and take anti-overturning measures. When walking, the driver should honk first. No one should be in front of or behind the track. No one should make a 90° sharp turn or walk on soft ground. When passing through high and low voltage lines, a sufficient safe distance should be maintained. No one should stay on the slope for a long time. No one should walk far away at night without sufficient lighting. Non-operators should not be in dangerous areas when lifting and landing the drilling frame. ** 3. Other aspects ** 1. ** Stripping ratio inspection **: The inspection content includes the mining ratio of the mine. By checking the design and production data and inspecting the mining situation on the spot, the inspection shall be carried out according to the Notice of the State Administration of Mine Safety Supervision on Carrying out the Special Rectification of Production Safety in Open Pit Mines, focusing on the serious imbalance of mining and stripping without taking any treatment measures. 2. ** Regarding underground to open pit mining **: When underground mining is converted to open pit mining, the goaf and karst caves must be explored, and the goaf and karst caves that pose a threat to the safety of open pit mining must be handled according to the design. When there are abandoned tunnels and goafs that threaten open pit mining, targeted safety precautions must be taken in advance. When open pit mining is carried out within the scope affected by underground mining, effective safety technical measures should be taken. 3. ** Safety platform and cleaning platform **: Safety platform and cleaning platform should be set up in the open-pit according to the design. 4. ** Working slope angle and step height **: The working slope angle shall not be greater than the designed working slope angle. The final side slope step height shall not exceed the designed height. The height of the production step shall comply with the relevant regulations. 5. ** Equipment, materials, and craftsmanship **: You cannot use equipment, materials, or craftsmanship that is prohibited by the country. 6. ** Mining sequence **: The top-down mining sequence should be divided into steps or layered mining. Small open-air quarries should adopt the step mining. If the step mining cannot be adopted, the top-down layered mining sequence should be adopted. The slicing height, maximum mining height and final slope angle of slicing mining in small open quarry shall be determined by design. The number of slices and the maximum mining height have different restrictions under different blasting operation methods. The width of the drilling platform for slicing mining shall be determined by design, and the minimum width of the drilling platform shall not be less than 4 meters. The minimum distance between adjacent quarries should be more than 300 meters. If you want to know more about the follow-up, click on the link and read it!