Method and system for predicting shield deviation correction moment
A prediction method and torque technology, applied in earthwork drilling, complex mathematical operations, instruments, etc., can solve problems such as improper decision-making, discrete control, construction axis vibration and deviation correction quality, etc., and achieve good practical results
Active Publication Date: 2019-07-30
SHANGHAI TUNNEL ENG CO LTD
View PDF6 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to overcome the defects of the prior art, provide a method and system for predicting the deflection correction torque of the shield tunneling machine, and solve the problem that the existing manual operation relies on the experience level of the operator, which is prone to improper decision-making and causes the construction axis to oscillate. Deskew Quality Control Discrete Problems
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
[0088] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0089] refer to figure 1 , The present invention provides a method and system for predicting the deflection correction torque of shield tunneling, which is used to solve the problem that the effect of manual operation depends on the experience level of each operator and improper decision-making will cause the construction axis to oscillate. The present invention establishes a fast self-learning method for the control relationship between the deflection correction direction and moment of the shield tunnel adapting to uncertain soil quality, collects the construction parameters of the shield tunnel construction in real time, and uses the actual construction parameters to establish the jack deflection correction torque and torque that can adapt to the uncertain soil quality. The relational expression of the jack stroke difference angle, so as to p...
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 relates to a method and system for predicting shield deviation correction moment. The method for predicting the shield deviation correction moment includes the following steps that during construction, the actual moment value of a jack and the actual travel difference angle value of the jack are acquired in real time; the corresponding relational expression between the deviation correction moment of the jack and the travel difference angle of the jack is solved by using the value acquired in real time; the predicted value of the jack travel difference angle of a current ring is obtained, the predicted value of the jack travel difference angle is substituted into the relational expression between the deviation correction moment of the jack and the travel difference angle of the jack, and the corresponding deviation correction moment of the jack is obtained as the deviation correction moment predicted value of the jack of the current ring. According to the method for predicting the deviation correction moment, real-time actual parameters of shield tunneling construction are adopted, and the relational expression between the deviation correction moment of the jack and the difference angle formed by the jack is quickly learned; and the relational expression fully takes into account the influence of soil quality change at the shield incision, and gives the relational expression between the deviation correction moment and the travel difference angle adapting to the uncertain soil quality.
Description
technical field [0001] The invention relates to the field of shield tunneling construction engineering, in particular to a method and system for predicting deflection correction torque of shield tunneling. Background technique [0002] Shield method tunnel construction has the characteristics of safety, reliability and high efficiency, and has played an important role in the construction of urban underground transportation. The tunnel design axis (DTA) is determined according to the operating speed and site distribution of underground vehicles, and the construction axis of a formed tunnel is one of the important quality assessment indicators for tunnel engineering. [0003] Affected by the attenuation characteristics of soil dielectric constant, the existing technology cannot continuously detect the soil state of the tunnel construction path. Geological prospectors generally drill and sample the tunnel path at a distance of about 20 meters, and then fit it into a soil distr...
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 IPC IPC(8): E21D9/06G06F17/50G06F17/10
CPCE21D9/06G06F17/10G06F30/00
Inventor 杨宏燕吴惠明肖晓春
Owner SHANGHAI TUNNEL ENG CO LTD