Riyan Lan
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View article: Damage and Fragmentation of Rock Under Multi-Long-Hole Blasting with Large Empty Holes
Damage and Fragmentation of Rock Under Multi-Long-Hole Blasting with Large Empty Holes Open
The technique of multi-long-hole blasting with large empty holes has been used in practice to break rock mass. However, the damage mechanism of rock mass surrounded by empty holes and boreholes under this type of blasting has not yet been …
View article: Effects of Confining Stress on Blast-Induced Damage Distribution of Rock with Discontinuity
Effects of Confining Stress on Blast-Induced Damage Distribution of Rock with Discontinuity Open
Discontinuous rock mass, such as joints and fractures, have a great influence on the blasting quality and sometimes induce additional damage at the discontinuity. In deep rock engineering, high in situ stress makes the damage mechanism of …
View article: The influence of the number of free surfaces on the energy distribution and attenuation law of blasting vibration signals from peripheral holes: field experiment and simulation
The influence of the number of free surfaces on the energy distribution and attenuation law of blasting vibration signals from peripheral holes: field experiment and simulation Open
Tunnels are commonly excavated using drilling and blasting methods, and the surrounding rock is greatly affected by the vibration of surrounding hole blasting. To study the influence of the number of free surfaces on the energy distributio…
View article: Analysis of Stress and Deformation Law of Tunnel Crossing Sliding Body Based on Pasternak Two Parameter Foundation Assumption
Analysis of Stress and Deformation Law of Tunnel Crossing Sliding Body Based on Pasternak Two Parameter Foundation Assumption Open
Because the landslide has an important influence on the internal force and deformation of the existing tunnel, and the research on the stress and deformation of the tunnel in the landslide area tends to field engineering monitoring, the co…
View article: A novel robust AE/MS source location method using optimized M-estimate consensus sample
A novel robust AE/MS source location method using optimized M-estimate consensus sample Open
Due to the complexity of the real engineering environment, the arrival measurement inevitably contains outliers and leads to serious location errors. In order to eliminate the influence of the outliers effectively, this paper proposes a no…
View article: A New Algebraic Solution for Acoustic Emission Source Localization without Premeasuring Wave Velocity
A New Algebraic Solution for Acoustic Emission Source Localization without Premeasuring Wave Velocity Open
The technique of acoustic emission (AE) source localization is critical for studying material failure mechanism and predicting the position of potential hazards. Most existing positioning methods heavily depend on the premeasured wave velo…
View article: An Investigation of Effects and Safety of Pipelines due to Twin Tunneling
An Investigation of Effects and Safety of Pipelines due to Twin Tunneling Open
To efficiently and accurately predict the effects of twin tunneling on adjacent buried pipelines, the effects of upward and downward relative pipeline‐soil interactions were considered. A series of numerical parametric studies encompassing…
View article: An Accurate Measurement Method for Tension Force of Short Cable by Additional Mass Block
An Accurate Measurement Method for Tension Force of Short Cable by Additional Mass Block Open
The equivalent effective length parameter is introduced into the vibration equation of short cable; that is, the boundary condition that affects the test accuracy of short cable force is equivalent to the calculated length of cable. By att…
View article: A Closed-Form Method of Acoustic Emission Source Location for Velocity-Free System Using Complete TDOA Measurements
A Closed-Form Method of Acoustic Emission Source Location for Velocity-Free System Using Complete TDOA Measurements Open
A closed-form method of acoustic emission (AE) source location for a velocity-free system using complete time difference of arrival (TDOA) measurements is proposed in this paper. First, this method established the governing equation of unk…
View article: Research on the Suspender Replacement Process of Arch Bridge Based on the Measured Displacement Correction
Research on the Suspender Replacement Process of Arch Bridge Based on the Measured Displacement Correction Open
The simplified method of arch bridge suspender replacement scheme based on the measured displacement correction is proposed in order to ensure the safety of the arch bridge suspender replacement process based on the pocket hanging method. …
View article: Interval Nonprobabilistic Reliability Analysis for Ancient Landslide considering Strain‐Softening Behavior: A Case Study
Interval Nonprobabilistic Reliability Analysis for Ancient Landslide considering Strain‐Softening Behavior: A Case Study Open
Uncertainties in geotechnical parameters significantly affect the stability evaluation of an ancient landslide, especially when considering the strain‐softening behavior. Due to the great difficulty in obtaining the probability density dis…
View article: A New Acoustic Emission Source Location Method Using Tri-Variate Kernel Density Estimator
A New Acoustic Emission Source Location Method Using Tri-Variate Kernel Density Estimator Open
A new AE location method using tri-variate kernel density estimator is developed in this paper. Firstly, combinations of every six arrivals are obtained from a multi-sensor location system, and the preliminary location results are obtained…