Earth pressure balance shield machine, and earth pressure balance shield machine control system and control method thereof

A technology of earth pressure balance and control system, which is applied in the direction of earth drilling, mining equipment, tunnels, etc. It can solve the problems of large volume, uneven transmission of earth pressure on the excavation surface, and reduce the construction speed, so as to achieve the effect of ensuring stability

Pending Publication Date: 2019-10-08
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the existing ultra-large diameter earth pressure balance shield machine is used for construction control, due to the large excavation area and the serious influence of the physical properties of the soil, the friction of the soil on the cutter head on the earth pressure balance shield machine The resistance is large, which increases the load of the earth pressure balance shield machine and the torque of the cutter head, and in the process...

Method used

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  • Earth pressure balance shield machine, and earth pressure balance shield machine control system and control method thereof
  • Earth pressure balance shield machine, and earth pressure balance shield machine control system and control method thereof
  • Earth pressure balance shield machine, and earth pressure balance shield machine control system and control method thereof

Examples

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, an earth pressure balance shield machine provided in this embodiment includes a shield machine body 1 and a propulsion cylinder 2 arranged on the shield machine body 1, and a cutter head is provided at the front of the shield machine body 1 3. The cutter head 3 is connected with the main drive 4, and the shield machine body 1 is also provided with a large screw conveyor 5 and a small screw conveyor 6, and the large screw conveyor 5 and the small screw conveyor The front ends of the shield machines 6 are respectively connected with the earth bins 7 of the shield machine body 1 for outputting the muck in the earth bins 7 .

[0038] The earth pressure balance shield machine provided in this embodiment is provided with a large screw conveyor 5 and a small screw conveyor 6, and the small screw conveyor 6 cooperates with the large screw conveyor 5 to output the muck in the soil bin 7, and the small screw conveyor 6 plays a good role in fine-tuning ...

Embodiment 2

[0040] Such as figure 2 with Image 6 As shown, an earth pressure balance shield machine control system provided in this embodiment includes a data input module, a data processing module and a control module, the data input module is used to input driving parameters; the data processing module is used to The input tunneling parameters obtain the rotating speed of the cutter head 3 and the propulsion speed of the propulsion cylinder 2, and further fitting obtain the rotating speed of the large screw conveyor 5 and the rotating speed of the small screw conveyor 6; the control module is used to output the large screw conveyor The speed control signals of the conveyor 5 and the small screw conveyor 6, and control the rotating speed of the large screw conveyor 5 and the small screw conveyor 6, realize the control of the amount of muck output in the soil bin 7.

[0041]This embodiment provides an earth pressure balance shield machine control system. The data processing module calc...

Embodiment 3

[0052] A control method for an earth pressure balance shield machine, using the above earth pressure balance shield machine system, comprising the following steps:

[0053] preset target value of earth pressure;

[0054] Calculate the cutter head speed and propulsion speed according to the preset earth pressure value;

[0055] And calculate the muck output and speed of the large screw conveyor, and the muck output and speed of the small screw conveyor;

[0056] Adjust the speed of the large screw conveyor until it reaches the calculated speed of the large screw conveyor, and adjust the speed of the small screw conveyor until it reaches the calculated speed of the small screw conveyor.

[0057] This embodiment provides an earth pressure balance shield machine control method. By preset the earth pressure value of the excavation surface, the cutter head rotation speed and propulsion speed are calculated according to the preset earth pressure value, and the theoretical slag of th...

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PUM

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Abstract

The application discloses an earth pressure balance shield machine. The earth pressure balance shield machine comprises a shield machine body and a thrust oil cylinder arranged on the shield machine body, wherein a cutterhead is arranged on the front portion of the shield machine body, a master driver is connected onto the cutterhead, a major spiral conveyer and a minor spiral conveyer are furtherarranged on the shield machine body, and the front ends of the major spiral conveyer and the minor spiral conveyer are respectively connected with a soil bin of the shield machine body and used for outputting slag soil in the soil bin. The earth pressure balance shield machine outputs the slag soil in the soil bin under cooperation of the minor spiral conveyer and the major spiral conveyer, achieves a good fine adjustment function for soil pressure in the soil bin through the minor spiral conveyer, and enables the soil pressure on an excavation face to accurately reach a preset soil pressurevalue, thereby effectively guaranteeing stability of the excavation face. The invention further provides an earth pressure balance shield machine control system and a control method thereof. The earthpressure balance shield machine control system and the control method thereof perform automatic control on the rotation speed of the major spiral conveyer and the minor spiral conveyer, and achieve accurate control for the slag discharge amount of the soil bin, thereby enabling the soil pressure of the excavation face to accurately reach the preset soil pressure value.

Description

technical field [0001] The invention belongs to the technical field of shield machines, and in particular relates to an earth pressure balance shield machine, an earth pressure balance shield machine control system and a control method thereof. Background technique [0002] The earth pressure balance shield machine has the advantages of small investment scale, simple construction method, small footprint, small impact on traffic and environment, and easy control of tunneling operations. It is widely used in the field of construction, especially in dense construction areas of cities and underground tunnel projects with heavy ground traffic. [0003] With the continuous development of municipal engineering construction, the requirements for earth pressure balance shield machines are also increasing. The small diameter (within 8 meters) earth pressure balance shield machines used in the past can no longer meet the requirements of some large municipal engineering construction. T...

Claims

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Application Information

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IPC IPC(8): E21D9/08E21D9/12E21D9/093
CPCE21D9/08E21D9/093E21D9/124
Inventor 程永亮彭正阳孙雪丰蔡杰杨连花陈庆宾
Owner CHINA RAILWAY CONSTR HEAVY IND
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