A new calculation method for open-phase fault based on superposition principle

2011 ◽  
Author(s):  
Shaofeng Huang ◽  
Tianjiao Li ◽  
Feng Ding ◽  
Lin Yang
Keyword(s):  
Calculation Method ◽  
Superposition Principle ◽  
Open Phase

scholarly journals Analytical Solution for the Influence of Irregular Shape Loads Near the Borehole Strain Observation

2021 ◽  
Author(s):  
Wei Yan ◽  
Zirui Li
Keyword(s):  
Calculation Method ◽  
Strain Field ◽  
Theoretical Basis ◽  
Superposition Principle ◽  
Three Dimensional ◽  
Irregular Shape ◽  
Strain Effect ◽  
Two Dimensional ◽  
Load Model ◽  
Quantitative Calculation

Abstract. Based on the analytic displacement solution caused by the punctate load model, we derived the calculation formulas of peripheral strain Field. This method can provide a theoretical basis for the quantitative calculation of the load influence of borehole strain observation. On this basis, using the superposition principle, we present a method for calculating the strain effect of two-dimensional and three-dimensional irregular shape loads. The results show that: (1) To solve the problem of two-dimensional irregular shape load model, we can calculate it by vector superposition after load scattering. (2) To solve the problem of three-dimensional irregular shape load model, we can use the two-dimensional irregular shape load method to calculate with assigning different weights to the scattered points after the load scattering. (3) There are obvious convergence processes in the vector superposition process after scattering of two-dimensional and three-dimensional irregular loads, which shows the correctness and feasibility of the calculation method. (4) The calculation method introduced in this paper can provide a research basis for quantitative analysis of influence of disturbance of peripheral load in borehole strain observation.

scholarly journals WAVE HEIGHT DISTRIBUTION AROUND PERMEABLE BREAKWATERS

1980 ◽  
Vol 1 (17) ◽  
pp. 12
Author(s):  
Shintaro Hotta
Keyword(s):  
Wave Height ◽  
Calculation Method ◽  
Field Observation ◽  
Approximate Calculation ◽  
Superposition Principle ◽  
Phase Lag ◽  
Height Distribution ◽  
Wave Height Distribution

A phase lag phenomenon in which waves are delayed in transmission through a permeable breakwater was considered in an approximate calculation method using the superposition principle of Sommerfeld. Experimental verifications were carried out for a semi-infinite permeable breakwater. In addition, a field observation of wave height distribution around a small detached breakwater is reported.

scholarly journals Methods to Analyze Flexural Buckling of the Consequent Slabbed Rock Slope under Top Loading

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Hongyan Liu ◽  
Guihe Wang ◽  
Feng Huang
Keyword(s):  
Calculation Method ◽  
Rock Slope ◽  
Superposition Principle ◽  
Damage Model ◽  
Friction Angle ◽  
Euler’S Method ◽  
Flexural Buckling ◽  
Linear Elastic Body ◽  
Buckling Failure ◽  
Dip Angle

The consequent slabbed rock slope is prone to flexural buckling failure under its self-weight and top loading. However, nearly none of the existing studies consider the effect of the top loading on the slope flexural critical buckling height (CBH). Therefore, on the basis of Euler’s Method and the flexural buckling failure mode of the consequent slabbed rock slope, the calculation method of the CBH of the vertical slabbed rock slope under the self-weight is firstly proposed, and then it is extended to that of the consequent slabbed rock slope. The effect of slope dip angle, friction angle, and cohesion between the neighboring rock slabs and rock elastic modulus on the slope CBH is discussed. Secondly, the calculation method of the CBH of the consequent slabbed rock slope under its self-weight and top loading is proposed according to the superposition principle. Finally, on the basis of the hypothesis that the rock mechanical behavior obeys the statistical damage model, the effect of the rock mechanical parametersnandε0on the slope CBH is studied. The results show that the rock strength has much effect on the slope CBH. If the rock is supposed to be a linear elastic body without failure in Euler’s Method, the result from it is the maximum of the slope CBH.

Back-Calculation Method of Subgrade Modulus Based on Traffic Speed Deflectometer

CICTP 2020 ◽  
2020 ◽  
Author(s):  
Guoshuai Zang ◽  
Haizhu Lu ◽  
Guanglai Jin ◽  
Zhixiang Zhang
Keyword(s):  
Calculation Method ◽  
Back Calculation ◽  
Subgrade Modulus ◽  
Traffic Speed
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