Hurst index-based slope safety evaluation method
A safety evaluation and slope technology, applied in special data processing applications, electrical digital data processing, instruments, etc., can solve the problems of data anomaly, missing monitoring data, inability to apply missing and abnormal data, etc., to achieve strong applicability, Remove the effect of mutation
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Embodiment 1
[0037] Example 1 Using Matlab to Realize Slope Safety Evaluation Based on Hurst Index
[0038] (1) Safety classification: Combined with the engineering grade of the slope, the slope is divided into three safety grades according to the Hurst index, and the safety warning range of the corresponding safety grade is determined as shown in Table 2;
[0039] Table 2 Security Level Classification
[0040] grading
I
II
III
H
0.9~1.0
0.75~0.90
0.5~0.75
[0041] (2) Data preprocessing: first determine the monitoring point of the slope, and then perform incremental calculation on the monitoring data of the monitoring point, that is, y i =x i -x i-1 , where x i is the original sequence (for monitoring data caused by construction and other reasons x i The mutation can be deleted directly, but the subsequent monitoring data x i+1 position and value), y i is the new sequence; then use the exponential smoothing method to smooth the new seque...
Embodiment 2
[0046] Embodiment 2 adopts the method in real-time example 1 to carry out the safety evaluation of certain rocky high slope
[0047] A certain level of hydropower station is located in Sichuan Province. It is a controlled reservoir in the downstream river section, with annual regulation capacity, and has significant benefits for downstream cascade compensation and regulation.
[0048] The valley in the hydropower station hub area is a typical deep-cut "V"-shaped canyon, and the relative height difference between the valley slopes on both sides reaches 1500-1700m. Structurally, it is Santan inverted turn oblique, with rock formation N15~60°E / SE35~45°, and the direction is basically consistent with the direction of the river. The bedrock is mainly metamorphic rocks of the Zagunao Formation (T2-3Z) of the Middle and Upper Triassic, the first section (T2-3Z1) greenschist, the second section (T2-3Z2) marble, the third section (T2-3Z2) 3Z3) Sand slate. The left bank slope of the h...
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