Surface mine transportation channel based on edge shunting

Abstract

The invention provides a surface mine transportation channel based on edge diversion, belongs to the technical field of surface mining transportation, and solves the problems that the mining quantity is large, the transportation efficiency is low and the traffic safety risk is high. The first connection cutting and the second connection cutting are arranged at the edges of the two ends of the mining horizontal operation platform respectively; and each of the first connection cutting and the second connection cutting comprises an inlet section horizontally connected with the upper part, a straight connection section connected with the edge of the mining horizontal operation platform, and an outlet section horizontally connected with the lower part. According to the method, the prepared mining quantity of the stope center is released, the resource recovery rate and economic benefits are improved, and meanwhile the passage capacity and the transportation safety are improved.

Description

Technical Field

[0001] This invention belongs to the field of open-pit mining transportation technology, and specifically relates to an open-pit mine transportation system based on edge diversion that can effectively improve transportation efficiency, ensure safety, and not occupy the reserve ore volume. Background Technology

[0002] In open-pit mining, transportation costs constitute a significant portion of the total cost, and transportation efficiency directly constrains the mine's production capacity. Traditional transportation systems typically rely on a single sloping ramp located in the center of the mining area or running through it. This layout has several significant drawbacks: First, as mining progresses, the transportation corridor in the center of the mining area occupies and covers a large amount of valuable reserve ore, preventing timely recovery of mineral resources and causing resource waste and economic losses. Second, all vehicles (empty, loaded, and auxiliary vehicles) are concentrated in one or two limited lanes, easily causing traffic congestion and low transportation efficiency. Third, intersecting vehicle flows and frequent passing greatly increase the risk of collisions, rear-end collisions, and other safety accidents. Current technologies typically address congestion by widening roads or adding passing lanes, but this does not solve the fundamental problem of occupying reserve ore, and widening roads is limited by slope stability and involves a large amount of engineering work. Therefore, there is an urgent need for a new transportation system layout that can significantly improve transportation efficiency and safety while maximizing the release of reserve ore in the central mining area. Summary of the Invention

[0003] The purpose of this invention is to provide an open-pit mine transportation channel based on edge diversion, which solves the problems of ore reserve occupation, low transportation efficiency and high traffic safety risks by moving the transportation channel to the edge of the mining area and physically diverting the traffic.

[0004] The technical solution of the present invention is: an open-pit mine transportation channel based on edge diversion, including a mining horizontal working platform, and a first connecting roadway and a second connecting roadway respectively opened at the two ends of the mining horizontal working platform; the first connecting roadway and the second connecting roadway each include an entrance section connected to the upper horizontal, a straight connecting section connected to the edge of the mining horizontal working platform, and an exit section connected to the lower horizontal.

[0005] As a further improvement of the present invention, the exit sections of the first and second connecting road cuts are at the same elevation as the mining horizontal working platform, and the entrance sections are at the same elevation as the horizontal platform on the mining horizontal working platform.

[0006] As a further improvement of the present invention, the slope of the straight connecting section meets the maximum allowable slope specified in the mine safety regulations, and the road width is not less than the width of the mine's designed transportation road.

[0007] As a further improvement of the present invention, traffic signs are provided at the entrances, exits and straight sections of the first and second connecting cuts.

[0008] As a further improvement of the present invention, traffic signs are one or more of physical signs, reflective cones, road markings, or traffic lights.

[0009] The beneficial effects of this invention are as follows: 1. By shifting the transportation corridor from the center of the mining area to the periphery, the ore reserves in the central area, previously occupied by roads, were completely freed up, improving mineral resource recovery rates and economic benefits. 2. Through two independent connecting road cuts, vehicles were physically separated for uphill / downhill or empty / loaded traffic, significantly improving the capacity of the transportation corridor and overall transportation efficiency. 3. The safety risks of converging opposing traffic flows within the mining area were fundamentally eliminated, significantly enhancing the safety of mine transportation operations. 4. The system has a rational layout, primarily utilizing peripheral space, is easy to implement, and offers substantial comprehensive benefits.

[0010] This invention addresses the problems in existing technologies where transport channels located in the center of the mining area result in occupied ore reserves, low transport efficiency, and significant safety risks from converging opposing traffic flows. It provides a diversion transport system located at the edge of the mining area. The key technical features are: first and second connecting roadways are constructed at both ends of the horizontal mining platform; each roadway includes an entrance section and an exit section connecting to the upper and lower levels, as well as a straight connecting section smoothly connecting to the platform edge; physical diversion is achieved by distributing upward / downward or empty / loaded traffic flows to the two independent roadways. This system releases ore reserves in the mining area center, improves resource recovery rate and economic efficiency, and simultaneously enhances channel capacity and transport safety. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the system layout of the present invention; Figure 2 for Figure 1 A cross-sectional view at point A in the diagram.

[0012] In the diagram: 1-Mining horizontal working platform; 2-First connecting road cut; 21-Entrance section; 22-Straight connecting section; 23-Exit section; 3-Second connecting road cut; 4-Traffic signs; 5-Ore preparation area. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] like Figures 1-2As shown, an open-pit mine transport channel based on edge diversion includes a mining horizontal working platform 1, and a first connecting roadway 2 and a second connecting roadway 3 respectively opened at the two ends of the mining horizontal working platform 1; the first connecting roadway 2 and the second connecting roadway 3 each include an entrance section 21 connected to the upper horizontal, a straight connecting section 22 connected to the edge of the mining horizontal working platform 1, and an exit section 23 connected to the lower horizontal; the straight connecting section 22 serves as an extension transport channel of the mining horizontal working platform 1, enabling vehicles to be diverted and transported directly through the two ends without passing through the middle area of ​​the mining horizontal working platform 1.

[0015] The first connecting road cut 2 is configured as a dedicated lane for uphill vehicles or empty vehicles, and the second connecting road cut 3 is configured as a dedicated lane for downhill vehicles or loaded vehicles.

[0016] The exit section 23 of the first connecting roadway 2 and the second connecting roadway 3 is at the same elevation as the mining horizontal working platform 1, and the entrance section 21 is at the same elevation as the horizontal platform on the mining horizontal working platform 1.

[0017] The slope of the straight connecting section 22 meets the maximum allowable slope specified in the mine safety regulations, and the road width is not less than the width of the mine's designed transportation road.

[0018] Traffic signs 4 are installed at the entrances and exits of the first connecting road cut 2 and the second connecting road cut 3, as well as on the straight connecting section 22. The traffic signs 4 are one or more of the following: physical signs, reflective cones, road markings, or traffic lights.

[0019] Example 1 This embodiment provides an open-pit mine transportation system based on edge diversion, the core of which lies in transforming the traditional transportation layout located in the center of the mining area. At a certain mining level in an open-pit mine, the core working area is the mining level working platform 1. The key improvement of this embodiment is that it abandons the traditional transportation road that runs through the center of the mining area, and instead constructs two independent connecting road cuts at both ends of the mining level working platform 1 (e.g., the east and west ends, or the south and north ends), namely the first connecting road cut 2 and the second connecting road cut 3.

[0020] The first connecting road cut 2 and the second connecting road cut 3 are symmetrical in structure. Taking the first connecting road cut 2 as an example, it consists of three sections: the entrance section 21 meanders down from the upper level with a slope that complies with safety regulations; the straight connecting section 22 is arranged close to the edge of the mining horizontal working platform 1, with a road width that meets transportation requirements and smoothly connects with the edge of the mining horizontal working platform 1; the exit section 23 then leads back to the mining horizontal working platform 1 with a safe slope. The structure of the second connecting road cut 3 is similar.

[0021] With this layout, the central area of ​​the mining area (i.e., the reserve mining area 5) is completely cleared out, and there are no permanent or semi-permanent transport roads covering it, so the ore in this area can be mined without obstruction.

[0022] In terms of operation and management, rules can be established and supplemented by traffic signs (such as setting up an "empty vehicle going up" sign at the entrance of the first connecting road 2 and a "loaded vehicle going down" sign at the entrance of the second connecting road 3) to enforce vehicle traffic rules. Empty vehicles enter the mining area to load ore from a fixed side edge passage (such as the first connecting road 2), while loaded vehicles exit from the other side edge passage (such as the second connecting road 3). The entire process has a clear flow line and does not intersect, achieving complete physical separation.

[0023] This invention cleverly integrates the transportation function onto the edge of the mining area, achieving a three-fold improvement in safety, efficiency, and resource recovery rate without significantly increasing the amount of engineering work, and has extremely high promotional value.

Claims

1. An open-pit mine transport channel based on edge diversion, characterized in that: It includes a mining horizontal working platform (1), and a first connecting road cut (2) and a second connecting road cut (3) respectively opened at the two ends of the mining horizontal working platform (1); the first connecting road cut (2) and the second connecting road cut (3) each include an entrance section (21) connected to the upper horizontal, a straight connecting section (22) connected to the edge of the mining horizontal working platform (1), and an exit section (23) connected to the lower horizontal.

2. The open-pit mine transport channel based on edge diversion according to claim 1, characterized in that: The exit section (23) of the first connecting road cut (2) and the second connecting road cut (3) are at the same elevation as the mining horizontal working platform (1), and the entrance section (21) is at the same elevation as the horizontal platform on the mining horizontal working platform (1).

3. An open-pit mine transport channel based on edge diversion according to claim 1 or 2, characterized in that: The slope of the straight connecting section (22) meets the maximum allowable slope specified in the mine safety regulations, and the road width is not less than the width of the mine's designed transportation road.

4. The open-pit mine transport channel based on edge diversion according to claim 3, characterized in that: Traffic signs (4) are provided at the entrances and exits of the first connecting road cut (2) and the second connecting road cut (3) and on the straight connecting section (22).

5. The open-pit mine transport channel based on edge diversion according to claim 4, characterized in that: The traffic sign (4) is one or more of the following: physical sign, reflective cone, road marking or traffic light.

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