A shield tunnel continuous and vertical belt machine combined intelligent slagging system

The intelligent muck removal system, which combines continuous and vertical belt conveyors in shield tunnels, uses screening and deep convolutional neural networks to identify muck parameters, automatically adjusts belt conveyor parameters, and optimizes muck transportation. This solves the problems of low efficiency and safety risks in transporting muck from sandy and mudstone layers over long distances and steep slopes, and achieves efficient and safe muck transportation.

CN118954030BActive Publication Date: 2026-01-02THE THIRD ENG CO LTD OF THE HIGHWAY ENG BUREAU OF CCCC +2
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Patent Information

Application Number
CN202411022626.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-29
Publication Date
2026-01-02
Estimated Expiration
2044-07-29

AI Technical Summary

Technical Problem

The transportation of excavated soil in long-distance, steeply sloping shield tunnels with alternating layers of sand and mudstone presents several challenges, including intermittent soil discharge, high construction safety risks, low transportation efficiency, a high risk of runaway vehicles, large space requirements for conveyor belts, and the impact of slag and water overflow on efficiency. Furthermore, the existing system is not optimized for integrated slag discharge.

Method used

An intelligent muck removal system combining continuous and vertical belt conveyors in shield tunnels is adopted. Through screening, deep convolutional neural network image recognition, and sensor monitoring of muck parameters, the system automatically adjusts the conveyor tilt angle and speed. By combining the transportation methods of continuous and vertical belt conveyors, the system optimizes the classification and transportation of muck.

Benefits of technology

It has achieved intelligent identification of muck transportation in sandstone and mudstone interlayer shield tunnels and effectively solved the intelligent level of large-diameter tunnels. It has solved the intelligent muck removal system for large-diameter tunnels, solved the intelligent problems in the middle of the existing technology, realized the application of large-diameter technology, realized the technical problems, realized the intelligent muck removal system with high muck transportation efficiency, solved the problem of low muck transportation efficiency, and improved the level of construction safety and civilized construction.

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Abstract

The application discloses a kind of intelligent slagging-off systems of shield tunnel continuous and vertical belt conveyor combination.It includes intelligent identification system, continuous belt conveyor and corrugated vertical belt conveyor.The intelligent identification system identifies slag parameter (mudstone content, sandstone content, moisture content) by deep convolutional neural network and classifies slag, establishes the conveying parameter (conveying speed, maximum conveying inclination) of different slag soil categories of sand-mudstone interbedded, the continuous belt conveyor transports slag to corrugated vertical belt conveyor by slag roller, and the corrugated vertical belt conveyor lifts slag to ground origin wellhead.The technical scheme of the application effectively solves the problem of continuous and efficient slagging-off of large-diameter and large-gradient earth pressure balance shield in sand-mudstone interbedded by setting slag intelligent identification system, continuous belt conveyor and corrugated vertical belt conveyor.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of muck transportation of shield machines, in particular to an intelligent muck discharging system combining continuous and vertical belt machines for shield tunnels. BACKGROUND

[0002] With the rapid development of domestic shield tunnels, long-distance, large longitudinal slope and large-diameter shield tunnels are increasing, and the geological environment they face is also increasingly complex and variable. In particular, the interbedded sand and mudstone muck has high viscosity and rich water content, which increases the difficulty of muck transportation. Long-distance, large longitudinal slope and interbedded sand and mudstone muck pressure balance shield continuous and efficient muck discharging faces severe challenges.

[0003] 1. Intermittent muck discharging, long stay time when the shield machine passes through risk sources, high construction safety risk, and easy adverse effects on ground buildings and structures;

[0004] 2. In the case of muck discharging in large slope tunnels, the traction capacity of the locomotive is difficult to bear the horizontal transportation of tunneling muck, the transportation efficiency is low, and the risk of collision, sliding and overturning is high, which poses a great safety hazard. Considering long-distance transportation, the efficiency of locomotive muck discharging is low, which seriously restricts the speed of shield tunneling;

[0005] 3. Easy to slide muck, which will cost a lot of manpower and material resources to clean up and affect the tidiness of tunnel construction;

[0006] 4. The number of turning muck of the return belt machine is large, the space occupied is large, and it is difficult to use in a small space in the station, especially when the water content of the muck is high, the muck water overflow is easy to occur at the tail of the belt machine, which seriously affects the transportation efficiency and the civilized construction on site.

[0007] 5. The existing muck discharging system of the belt machine does not consider the influence factors of muck parameters (muck particle size, particle size) and transportation parameters (transportation speed, transportation angle of inclination), so it cannot optimize the continuous muck discharging system from the aspect of muck discharging integration and realize rapid tunneling of long-distance, large longitudinal slope and interbedded sand and mudstone muck pressure balance shield. SUMMARY

[0008] In view of the above-mentioned deficiencies in the background art, the present application proposes an intelligent muck discharging system combining continuous and vertical belt machines for shield tunnels, which solves the problem of limited tunneling speed caused by low muck discharging efficiency of long-distance, large longitudinal slope and interbedded sand and mudstone, optimizes the continuous muck discharging system from the aspect of muck discharging integration, and invents a fast, continuous and safe intelligent muck discharging method to improve the muck transportation efficiency of shield machines and reduce the construction cost.

[0009] To achieve the above-mentioned purpose, the present application adopts the following technical solutions.

[0010] The application discloses an intelligent slag discharging system combining a shield tunnel and a continuous and vertical belt conveyor, and specifically comprises the following steps.

[0011] S1. Screening large-diameter particles in slag. Wet screening is adopted in vibration screening, first-stage screening screens out particles larger than 20 cm, and second-stage screening screens out particles of 5-20 cm. The screened large-diameter slag is separately transported to a starting shaft by a slag car, transferred to a gantry crane and then sent to a slag pool;

[0012] S2. Automatically classifying slag images taken by a time-lapse camera vertically installed above the continuous belt conveyor by using a deep convolutional neural network; specifically comprising the following steps:

[0013] (1). When the sand-mud interbedded shield slag is transmitted to the outside of the tunnel through the continuous belt conveyor, the slag reaches the continuous belt conveyor and enters the target visual field area of the camera;

[0014] (2). The system obtains real-time video streams in the monitoring area through a high-definition camera, and then intercepts the images of the current frame for the identification of subsequent algorithm modules;

[0015] (3). The current frame image obtained by the system image acquisition module is taken as the input of the identification module;

[0016] (4). The image preprocessing algorithm part performs preprocessing operations such as cropping and enhancing on the original slag image;

[0017] (5). The trained model is loaded to detect the images after the preprocessing step to obtain the slag discharging state classification result;

[0018] (6). Finally, all the recognized effective images are classified and saved to an extended storage medium, and the prediction result and real-time image are displayed on the software interface, thereby providing a basis for the next processing decision of the management personnel.

[0019] S3. Classifying the sand-mud interbedded slag according to the sand-mud interbedded slag parameters (mud content, sandstone content and water content) monitored in S1.

[0020] (1). The sand-mud interbedded slag is divided into three grades according to the sandstone and mud content:

[0021] ①. The mud content is 25%-50%, and the sandstone content is 50%-75%;

[0022] ②. The mud content is 50-75%, and the mud content is 25%-50%;

[0023] ③. The mud content is 75%-100%, and the mud content is 0%-25%;

[0024] (2). The sand and mud interbedded slag is divided into three grades according to the water content:

[0025] ①. The water content is 10%-20%;

[0026] ②. The water content is 20%-30%;

[0027] ③. The water content is greater than 30%.

[0028] S4. The slag parameters monitored by S2 are transmitted to the belt conveyor control system through the sensor, and the belt conveyor control system gives an instruction to automatically adjust the conveying angle and conveying speed of the continuous belt conveyor matched with the slag category according to the slag classification information;

[0029] (1). If the mud content is 25%-50%, the sandstone content is 50%-75%, the water content is 10%-20%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 9°;

[0030] (2). If the mud content is 25%-50%, the sandstone content is 50%-75%, the water content is 20%-30%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 7°;

[0031] (3). If the mud content is 25%-50%, the sandstone content is 50%-75%, the water content is 30%-40%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 5°;

[0032] (4). If the mud content is 50-75%, the sandstone content is 25%-50%, the water content is 10%-20%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°;

[0033] (5). If the mud content is 50-75%, the sandstone content is 25%-50%, the water content is 20%-30%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°;

[0034] (6). If the mud content is 50-75%, the sandstone content is 25%-50%, the water content is 30%-40%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°;

[0035] (7). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 10%-20%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°;

[0036] (8). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 20%-30%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°;

[0037] (9). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 30%-40%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°.

[0038] S5. After the slag is transported by the continuous belt conveyor, it is transferred to the head horizontal feeding section of the vertical belt conveyor by the brick slag roller, and then lifted to the tail horizontal discharging section of the vertical belt conveyor by the body vertical lifting section of the vertical belt conveyor, and then transported to the ground slag pit by the tail horizontal discharging section of the vertical belt conveyor.

[0039] S6. After the vertical belt conveyor is unloaded, the corrugated baffle is cleaned by a vibration sweeper mechanism or a beating method, and the belt is cleaned by a matrix flushing mode combining high pressure and small flow water in the horizontal return section.

[0040] Further, the width of the belt conveyor can be adjusted according to the specific shield tunneling speed and the diameter of the excavation face to ensure that the shield tunneling speed matches the slag conveying speed.

[0041] Further, the large-diameter particles screened out can be directly used as concrete pouring materials, road subgrade materials, and back wall grouting materials.

[0042] Further, the continuous belt conveyor is installed and fixed by a triangular support and a lower segment bolt in the tunnel.

[0043] Further, the material of the belt conveyor is rubber, the static friction coefficient is 0.6-0.8, and the dynamic friction coefficient is 0.5-0.7.

[0044] Further, the vertical lifting section belt conveyor can be inclined in the range of 70-90° according to the site conditions.

[0045] Further, the head horizontal feeding section of the vertical belt conveyor is installed on the tunnel ground; the tail horizontal discharging section of the vertical belt conveyor is installed on the ground of the starting shaft; the body vertical lifting section of the vertical belt conveyor is installed on the sidewall of the starting shaft and connects the head horizontal feeding section and the tail horizontal discharging section.

[0046] Further, the height of the body vertical lifting section is not less than 60 meters.

[0047] Further, the vertical belt conveyor is a corrugated baffle vertical belt conveyor

[0048] The present application has the following beneficial effects:

[0049] 1. The intelligent identification system based on deep convolutional neural network is applied to the actual shield slag discharge system, the mudstone content, sandstone content and water content in the sand-mudstone interbedded layer are intelligently identified, and the sand-mudstone interbedded layer slag is classified.

[0050] 2. The continuous belt conveyor conveying speed and the maximum conveying angle suitable for different slag categories of sand-mudstone interbedded layer are established, the continuous slag discharge system is optimized from the aspect of slag discharge integration, and the problem of continuous and efficient slag discharge of large-diameter and large-slope earth pressure balance shield in sand-mudstone interbedded layer is effectively solved.

[0051] 3. In the sand-mudstone interbedded layer construction of the shield, the slag has large viscosity and rich water content, which increases the difficulty of vertical lifting. By adopting the combination of the continuous belt conveyor and the composite corrugated baffle vertical belt conveyor, the conveying efficiency of the sand-mudstone interbedded layer slag can be significantly improved, the construction civilization is improved, and the engineering problem that the full-load slag soil is unevenly distributed and easily falls on the track when the electric car is used for transportation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0052] The present application will be further described below in combination with the drawings:

[0053] Figure 1 The figure is a schematic diagram of the intelligent identification system; CONCRETE IMPLEMENTATION METHOD

[0054] The technical solutions of the present application will be described in detail below in combination with specific embodiments. It should be noted that the embodiments provided by the present application are only part of examples, not all. Based on the examples provided by the present application, those skilled in the art can develop other embodiments without departing from the spirit and scope of the present application.

[0055] A shield tunnel continuous and vertical belt conveyor combined intelligent slag discharge system, specifically comprising the following steps:

[0056] A shield tunnel continuous and vertical belt conveyor combined intelligent slag discharge system, specifically comprising the following steps:

[0057] S1. Screen out large particle size particles in the slag. Vibration screening adopts wet screening, and particles larger than 20 cm are screened out in the first screening, and particles of 5-20 cm are screened out in the second screening. The screened large particle size slag is separately transported to the starting wellhead by the slag car, transferred to the gantry crane and sent to the slag pool;

[0058] S2. Using a deep convolutional neural network to automatically classify the slag images taken by the timing camera vertically installed above the continuous belt conveyor; Specifically, the following steps are included:

[0059] (1). The sand-shale interbedded shield slag is transported to the outside of the tunnel through the continuous belt conveyor slag removal system, and when the slag reaches the continuous belt conveyor, it enters the target field of view area preset by the camera;

[0060] (2). The system obtains real-time video stream in the monitoring area through a high-definition camera, and then intercepts the current frame image for subsequent algorithm module recognition;

[0061] (3). The current frame image obtained by the system image acquisition module is taken as the input of the recognition module;

[0062] (4). The image preprocessing algorithm part performs preprocessing operations such as cropping and enhancing on the original rock slag image;

[0063] (5). Load the trained model to detect the images after the preprocessing step to obtain the slag removal state classification result;

[0064] (6). Finally, all the recognized effective images are classified and saved to the extended storage medium, and the prediction results and real-time images are displayed on the software interface, providing a basis for the next processing decision of the management personnel.

[0065] S3. According to the sand-shale interbedded slag parameters (mudstone content, sandstone content, water content) monitored by S1, the slag is classified.

[0066] (1). The sand-shale interbedded slag is divided into three grades according to the sandstone and mudstone content:

[0067] ①. Mudstone content is 25%-50%, sandstone content is 50%-75%;

[0068] ②. Mudstone content is 50-75%, mudstone content is 25%-50%;

[0069] ③. Mudstone content is 75%-100%, mudstone content is 0%-25%;

[0070] (2). The sand-shale interbedded slag is divided into three grades according to the water content:

[0071] ①. Water content 10%-20%;

[0072] ②. Water content is 20%-30%;

[0073] ③. Water content is greater than 30%.

[0074] S4. The slag parameters monitored by S2 are transmitted to the belt conveyor control system through the sensor, and the belt conveyor control system gives an instruction to automatically adjust the conveying angle and conveying speed of the continuous belt conveyor matching the slag category according to the slag classification information;

[0075] (1). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 10%-20%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 9°;

[0076] (2). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 20%-30%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 7°;

[0077] (3). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 30%-40%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 5°;

[0078] (4). If the mudstone content is 50-75%, the sandstone content is 25%-50%, the water content is 10%-20%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°;

[0079] (5). If the mudstone content is 50-75%, the sandstone content is 25%-50%, the water content is 20%-30%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°;

[0080] (6). If the mudstone content is 50-75%, the sandstone content is 25%-50%, the water content is 30%-40%, and the conveying speed of the continuous belt conveyor is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°;

[0081] (7). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 10%-20%, and the conveying speed of the continuous belt conveyor is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°;

[0082] (8). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 20%-30%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°;

[0083] (9). If the mudstone content is 75%-100%, the sandstone content is 0%-25%, the water content is 30%-40%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°.

[0084] S5. After the slag is transported by the continuous belt conveyor, the slag is transferred to the head horizontal feeding section of the vertical belt conveyor by the brick slag roller, and then lifted to the tail horizontal discharging section of the vertical belt conveyor by the body vertical lifting section of the vertical belt conveyor, and then transported to the ground slag pit by the tail horizontal discharging section of the vertical belt conveyor.

[0085] S6. After the vertical belt conveyor is unloaded, the corrugated baffle is cleaned by a vibration sweeper mechanism or a beating method, and the belt is cleaned by a matrix flushing mode combining high pressure and small flow water in the horizontal return section.

[0086] The width of the belt conveyor is adjusted according to the specific shield tunneling speed and the diameter of the excavation face, so as to match the shield tunneling speed with the slag conveying speed.

[0087] Preferably, the large-diameter particles screened out can be directly used as concrete pouring materials, road subgrade materials, and back-wall grouting materials.

[0088] Preferably, the continuous belt conveyor is installed and fixed by a triangular support and a lower segment bolt in the tunnel.

[0089] Preferably, the material of the belt conveyor is rubber, the static friction coefficient is 0.6-0.8, and the dynamic friction coefficient is 0.5-0.7.

[0090] Preferably, the vertical lifting section belt conveyor can be inclined in the range of 70-90° according to the site conditions.

[0091] Preferably, the head horizontal feeding section of the vertical belt conveyor is installed on the ground of the tunnel, the tail horizontal discharging section of the vertical belt conveyor is installed on the ground of the starting shaft, and the body vertical lifting section of the vertical belt conveyor is installed on the side wall of the starting shaft and connected with the head horizontal feeding section and the tail horizontal discharging section.

[0092] Preferably, the height of the body vertical lifting section is not less than 60 meters.

[0093] Preferably, the vertical belt conveyor is a corrugated baffle vertical belt conveyor.

[0094] The above examples are only to illustrate the technical concepts and characteristics of the present application, and are intended to help the relevant skilled persons to understand the content of the present application and serve as a reference for implementation, but are not meant to limit the scope of protection of the present application. Any equivalent changes or modifications made in accordance with the core spirit of the present application shall be considered as part of the scope of protection of the present application.

Claims

1. A method for intelligent slagging of a shield tunneling machine in combination with a continuous and vertical belt conveyor, characterized in that: Specifically comprising the following steps: S1. Screen out large particle size particles in the slag, the vibration screen uses wet screening, the first screening screens out particles larger than 20 cm, the second screening screens out particles of 5-20 cm, and the screened large particle size slag is separately transported to the starting wellhead by the slag car, transferred to the gantry crane and sent to the ground; S2. The deep convolutional neural network is used for automatic classification of the slag image photographed by the timing camera vertically installed above the continuous belt conveyor; Specifically comprising the following steps: (1). The sand-shale interbedded shield slag is transported to the outside of the tunnel through the continuous belt conveyor slag discharge system, and when the slag reaches the continuous belt conveyor, it enters the target field of view area preset by the camera; (2). The system obtains real-time video stream in the monitoring area through a high-definition camera, and then intercepts the image of the current frame for subsequent algorithm module identification; (3). The current frame image obtained by the system image acquisition module is taken as the input of the identification module; (4). The image preprocessing algorithm part performs cropping and enhancement preprocessing operations on the original rock slag image; (5). The trained model is loaded to detect the image after the preprocessing step to obtain the slag discharge state classification result; (6). Finally, all the recognized effective images are classified and saved to the extended storage medium, and the prediction result and real-time image are displayed on the software interface, providing a basis for the next processing decision of the management personnel; S3. Classify the sand-shale interbedded slag according to the sand-shale interbedded slag parameters monitored by S2; (1). The sand-shale interbedded slag is divided into three levels according to the sandstone and mudstone content: ①. Mudstone content is 25%-50%, sandstone content is 50%-75%; ②. Mudstone content is 50-75%, mudstone content is 25%-50%; ③. Mudstone content is 75%-100%, mudstone content is 0%-25%; (2). The sand-shale interbedded slag is divided into three levels according to the water content: ①. Water content 10%-20%; ②. Water content 20%-30%; ③. Water content greater than 30%; S4. The slag parameters obtained by S1 are transmitted to the belt conveyor control system through the sensor, and the belt conveyor control system gives an instruction to automatically adjust the conveying angle and conveying rate of the continuous belt conveyor matched with the slag category according to the slag classification information; (1). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 10%-20%, and the continuous belt conveyor conveying rate is 2.4-3.0 m / s, then the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 9°; (2). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 20%-30%, and the continuous belt conveyor conveying rate is 2.4-3.0 m / s, then the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 7°; (3). If the mudstone content is 25%-50%, the sandstone content is 50%-75%, the water content is 30%-40%, and the continuous belt conveyor conveying rate is 2.4-3.0 m / s, then the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 5°; (4). If the mudstone content is 50-75%, the sandstone content is 25-50%, the water content is 10-20%, and the continuous belt conveyor conveying speed is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°; (5). If the mudstone content is 50-75%, the sandstone content is 25-50%, the water content is 20-30%, and the continuous belt conveyor conveying speed is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°; (6). If the mudstone content is 50-75%, the sandstone content is 25-50%, the water content is 30-40%, and the continuous belt conveyor conveying speed is 2.4-3.0 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°; (7). If the mudstone content is 75-100%, the sandstone content is 0-25%, the water content is 10-20%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 10°; (8). If the mudstone content is 75-100%, the sandstone content is 0-25%, the water content is 20-30%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 8°; (9). If the mudstone content is 75-100%, the sandstone content is 0-25%, the water content is 30-40%, and the continuous belt conveyor conveying speed is 3.0-3.6 m / s, the maximum horizontal conveying angle of the continuous belt conveyor is controlled to be 6°; S5. After the slag is transported by the continuous belt conveyor, the slag is transferred to the head horizontal feeding section of the vertical belt conveyor through the brick slag roller, and then is lifted to the tail horizontal discharging section of the vertical belt conveyor through the body vertical lifting section of the vertical belt conveyor, and then is transported to the ground slag pit through the tail horizontal discharging section of the vertical belt conveyor; S6. After the vertical belt conveyor is unloaded, the corrugated baffle is cleaned by a vibration sweeper mechanism or a beating method, and the belt is cleaned by a matrix flushing mode combining high pressure and small flow water vapor in the horizontal return section.

2. The intelligent slagging-off method of claim 1, wherein the method is characterized by: The width of the belt conveyor is adjusted according to the specific shield tunneling speed and the diameter of the excavation face, so as to ensure that the shield tunneling speed matches the slag conveying speed.

3. The intelligent slagging method of claim 1, wherein the method is characterized by: The large-diameter particles screened out are directly used as concrete pouring materials, roadbed materials and back wall grouting materials.

4. The intelligent slagging-off method of claim 1, wherein the method is characterized by: The continuous belt conveyor is installed and fixed in the tunnel through a triangular support and a lower segment bolt in the tunnel.

5. The intelligent slagging method of claim 1, wherein the method is characterized by: The material of the continuous belt conveyor and the vertical belt conveyor is rubber, the static friction coefficient is 0.6-0.8, and the dynamic friction coefficient is 0.5-0.

7.

6. The intelligent slagging method of claim 1, wherein the method is characterized by: The vertical belt conveyor can be inclined in a range of 70-90°.

7. The intelligent slagging method of claim 1, wherein, The head horizontal feeding section of the vertical belt conveyor is installed on the ground of the tunnel, the tail horizontal discharging section of the vertical belt conveyor is installed on the ground of the starting shaft, and the body vertical lifting section of the vertical belt conveyor is installed on the sidewall of the starting shaft and connected with the head horizontal feeding section and the tail horizontal discharging section.

8. The intelligent slagging method of claim 7, wherein, The height of the vertical lifting section of the fuselage is not less than 60 meters.

9. The intelligent slagging method of claim 7, wherein, The vertical belt machine is a corrugated baffle vertical belt machine.

Citation Information

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