A method for controlling the tunneling speed of a shield machine
A technology of excavation speed and control method, applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of poor accuracy, complex fine-tuning process, low efficiency, etc., and achieve the effect of high accuracy, simple control method and high efficiency
Active Publication Date: 2017-08-25
SHANGHAI MECHANIZED CONSTR GRP
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a method for controlling the tunneling speed of a shield machine, so as to solve the problems of complex fine-tuning process, low efficiency and poor accuracy in the slow-speed tunneling of the shield machine in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] When constructing an underground project, it is necessary to pass through a reinforced concrete pile foundation of a ground wall. This project adopts the method of cutting reinforced concrete with cutter head to pass through the underground reinforced concrete structure.
[0022] The shield machine must ensure a certain thrust when passing through the pile foundation, so that the cutter head can effectively cut the pile foundation. The setting of the balance pressure of the earth pressure balance shield machine is the key to the construction of the earth pressure balance shield machine, and maintaining and adjusting the set pressure value is an important link in the tunneling operation of the shield machine, which includes thrust, tunneling According to the relationship among velocity and unearthed volume, the earth pressure balance plays a leading role in the control of formation deformation. Therefore, the tunneling speed can only be controlled under the premise of e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a method for controlling the tunneling speed of a shield machine, comprising: controlling the tunneling speed of the shield machine by adjusting the speed-limiting control potentiometer of the shield machine, so that the tunneling speed of the shield machine is greater than zero and less than or equal to the set The specified slow-speed driving maximum value; detection obtains the first data register value at the slow-speed driving maximum value and divides this value by the first proportional coefficient to obtain the end value of the second data register, and realizes shielding through the first path Conventional excavation of the tunneling machine; divide the maximum analog input value of the shield machine by the end value of the second data register to obtain the second proportional coefficient, and realize the slow tunneling of the shield machine through the second path in parallel with the first path, The first path is opened or closed through the backup switch, and the state of the second path is opposite to that of the first path. The value of the first data register is divided by the second proportional coefficient to obtain the value of the second data register. The invention ensures that the tunneling speed control method of the shield machine is simple, high in efficiency and high in precision.
Description
technical field [0001] The invention belongs to the field of shield tunneling, in particular to a method for controlling the tunneling speed of a shield tunneling machine. Background technique [0002] In the construction of underground engineering, it is inevitable to pass through underground obstacles. In order to pass through underground obstacles, shield tunneling technology is often required. In general, the shield machine is mainly used to cut underground obstacles. However, when the strength of the underground obstacle is high, it is necessary to control the shield machine to make it excavate at a slow speed. The speed range of the slow excavation of the shield machine is generally 0-10mm / min, but this range is often not in line with the reality. Excavation requirements, in order to further improve the excavation efficiency and accuracy of underground obstacles, it is necessary to set a lower maximum value of slow excavation, and it is necessary to carry out the shie...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/093
Inventor 陈耀峰金福强蒋一德
Owner SHANGHAI MECHANIZED CONSTR GRP