1. Open-pit mines use open-pit mining to open ore mining enterprises, sometimes referred to as open pits. 2. Sites where stripping and mining are carried out with mining equipment in open pits. 3. The open-pit mining site of the hillside open pit and the deep open pit in the hillside above the surface closed circle is called the open pit of the hillside. Below the surface closed circle, it is called deep open pit. 5. Stripping is to expose the ore body, and the operation of topsoil and surrounding rock mining is said to be stripped. The above topsoil and surrounding rock are collectively referred to as exfoliates. 1. The open-pit mining boundary refers to the spatial outline of the mining site at a certain period or end. The mining boundary includes surface warning lines, side gangs and bottom boundary lines. The mining boundary has the distinction between the final mining boundary line and the staged mining boundary. The intersection of the side of the stope and the contour of the surface is collectively referred to as the boundary of the surface (points B and C in Figure 3-2); the intersection of the side of the stop and the bottom of the open is called the bottom boundary (E in Figure 3-2). Point F); EF is the open bottom or the bottom of the pit. 2. The step is also called the stage. During the mining process, in order to meet the normal working requirements of the mining equipment and transportation equipment, the cover layer, surrounding rock and ore body are divided into layers of a certain height. The step is one of the basic components of the open pit, and it is a unit that performs independent stripping work. The open pit is composed of a series of steps that maintain a certain advanced relationship, and its spatial form is stepped. The steps are usually named XX level with the elevation of the lower platform. The basic elements of the step are shown in Figure 3-3. The upper and lower working platforms, or working flat plates; the inclined surface of the step facing the side of the goaf is called the step slope, the angle of the horizontal plane is called the step slope angle; the upper part of the step The intersection line between the platform and the slope is called the top line of the step slope. The intersection line between the lower platform and the slope surface is called the bottom line of the step slope; the vertical distance between the upper and lower platforms is called the step height. 3. To help the slope around the open pit, that is, the surface of each step slope of the stope, the slope of the inclined trunk line and the platform. The side gang on the side of the upper part of the ore body is called the top gang; the side gang on the side of the lower part of the ore body is called the bottom gang; the side gang located at the opposite ends of the ore body is called the end gang. Help the work and non-work. The part of the side gang or side gang consisting of the working steps being mined and to be mined is called the work gang; the imaginary bevel of the city connected to the bottom line of the upper and lower steps is called the work sloping surface. The angle between the working slope and the horizontal plane is called the working angle. The side gang consisting of non-working steps that end the mining work or a part thereof is called a non-working gang (ie CD); the imaginary bevel of the city connected to the bottom line of the uppermost step and the bottom line of the lowermost step by non-work It is called non-working slope surface, namely AB and CD; the angle between non-working slope surface and water level, such as β and γ in the figure, becomes non-working slope angle or final slope angle. The position of the work gang is constantly moving as the mining work progresses, and the position of the non-work gang is fixed. The non-working slopes represent the final position of the sidewalks and must be stable. 4. Non-work help platform The platform on the non-working steps is divided into safety platform, cleaning platform and transportation platform according to its use. The safety platform is a platform that is designed to maintain the stability of the final side and to prevent the fall of the rolling stones. The width of the platform is about 1/3 of the height of the step, which helps to slow down the final side angle. The cleaning platform is a platform for transportation between the working steps and the access ditch. The width is determined by the mode of transport used and the number of lines. 5. The mining depth refers to the highest point of the mining level in the stope to the vertical depth of the bottom of the pit. 6. The mining belt refers to the strips that are sequentially extracted on the working steps. 7. The working line length of the mining area or excavator refers to the mining section divided along the length of the mining belt, and each mining area is equipped with an independent mining and transportation equipment. 8. The access duct connects the inclined transport channel between the ground and the working level and between the working levels. 9. The open channel is a horizontal channel for drilling the working line at each working level. The channel forms a complete trapezoid below the horizontal ground and is called a single-sided groove on the hillside. EK-S Series Injection Molding Machine Ek-S Series Inj Molding Mach,Central Locking Toggle Injection Molding Machines,Tooth Brush Injection Molding Machine,Hydraulic Injection Moulding Machine Ningbo Jietan Machinery Equipment Trading Co., Ltd. , https://www.jietanmachinery.com
4. The open-pit ore field is classified as an open-pit mine or a part of the deposit
Second, the terminology of the elements of the open pit
Chapter III Basic Concepts of Open-pit Mining - Section 2 Terminology of Open-pit Mining
I. General terminology