Group tension effect spherical crown type slope stability evaluation method based on transfer coefficient method
A technology of transfer coefficient and evaluation method, applied in electrical digital data processing, instrument, design optimization/simulation, etc., can solve the problem of insufficient stability of three-dimensional spherical cap slope, and achieve the effect of simple calculation process and reasonable calculation results
Active Publication Date: 2020-02-04
ZHENGYE ENG & INVESTMENT INC +1
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of the above problems, the technical problem to be solved in the present invention is to provide a method for evaluating the stability of spherical crown slopes under group tension based on the transfer coefficient method, so as to solve the problem of the existing transfer coefficient method in evaluating the stability of three-dimensional spherical crown slopes under group tension. sexual inadequacy
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
[0053] Embodiment: Step 1: The spherical crown slope under the action of group tension is divided into 10 ring-shaped blocks, and the calculation parameters are: γ i Both are 25kN / m 3 ; c 1i Both are 33kPa, Both are 35°; c 2i Both are 33kPa, Both are 35°; r i As shown in Table 1; F xi and F yi As shown in table 2.
[0054] Table 1 Radius r of ring bar i
[0055] bar number 1 2 3 4 5 6 7 8 9 10 r i (m)
49.7 45.8 41.8 37.8 33.8 29.8 25.8 21.8 17.8 13.8
[0056] Table 2 Ring bar F xi and F yi
[0057] bar number 1 2 3 4 5 6 7 8 9 10 f xi (kN)
2400 2200 2000 1800 1600 1400 1200 800 600 400 f yi (kN)
2400 2200 2000 1800 1600 1400 1200 800 600 400
[0058] Step 2: Select multiple fan-shaped bodies with an included angle of Δψ, h i , l i , θ i as shown in Table 3.
[0059] Table 3 Sector h i , l i , θ i
[0060]
[0061] Step 3: Iteratively calculate the saf...
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 discloses a group tension effect spherical crown type slope stability evaluation method based on a transfer coefficient method, and the implementation process is as follows: dividing a spherical crown type slope into a plurality of annular strip blocks, and obtaining the radius ri of each annular strip block; selecting a plurality of fan-shaped bodies with an included angle of deltapsi, and obtaining the height hi, the bottom surface length li and the inclination angle theta i between the bottom surface and the horizontal plane of each fan-shaped body i; and iteratively calculating the slope safety factor Fs through the following formula. A new assumption is introduced into the transfer coefficient method to improve the arch effect of the spherical crown type side slope; andmeanwhile, the group tension is added into the formula, the improved transfer coefficient method can be used for evaluating the stability of the spherical crown type slope under the group tension action, the calculation process is simple, and a method with a more reasonable calculation result is provided for evaluating the stability of the spherical crown type slope under the group tension action.
Description
technical field [0001] The invention relates to a slope stability evaluation method, in particular to a spherical crown type slope stability evaluation method based on a transfer coefficient method. Background technique [0002] In mountain engineering construction and landslide disaster prediction and analysis, slopes of various shapes will be encountered. For example, the shape of the slope in the horizontal plane can be divided into convex, concave and straight. The spatial shape of the slope It will undoubtedly affect its stability. Strictly speaking, slope stability analysis is a spatial problem, and the three-dimensional analysis method is more in line with the actual situation. In engineering, the evaluation of slope stability generally adopts the two-dimensional limit equilibrium method. This method is suitable for linear slope calculations. The accuracy is acceptable, but for slopes with significant spatial effects such as spherical crown slopes, the calculation re...
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 Applications(China)
IPC IPC(8): G06F30/20G06F119/14
CPCG06F2119/06G06F30/20
Inventor 沈志平宋二祥徐明吴斌付君宜连江波
Owner ZHENGYE ENG & INVESTMENT INC