Results 31 to 40 of about 364,843 (227)

Propagation characteristics and control technology of blasting vibration in neighborhood tunnel

open access: yesFrontiers in Earth Science, 2023
During the tunnel construction process using the drilling and blasting method, the induced blasting vibration always poses a great threat to the stability and safety of the adjacent tunnel supporting structure.
Zixiu Qin   +6 more
doaj   +1 more source

Simulation of Vibration Caused by Blasting for a Layered Slope [PDF]

open access: yes, 2004
Recent studies showed that vibration caused by blasting mainly reflects the property of geological structure itself neighboring the blasting center. Different vibration signals can be collected for different geological structures under blasting.
Bai JZ   +4 more
core   +2 more sources

Experimental Study on Frequency Modulation Damping Effect of Digital Detonator in Road Clearance Blasting

open access: yesShock and Vibration, 2023
To measure and evaluate the impact of vibration on the surrounding buildings and structures during highway rock burst removal and to formulate scientific and reasonable protective technical measures, the authors used the blasting perilous rock removal ...
Jing Gao   +3 more
doaj   +1 more source

Influence of Depth and Position of Vibration-Isolating Slot on Damping Effect of Blasting Vibration

open access: yesShock and Vibration, 2023
The blasting vibration has an impact on the rock and soil around the blasting hole and the nearby structures. The vibration-isolating slot is one of the methods to reduce the damage of blasting vibration.
Xiao Li   +4 more
doaj   +1 more source

New Damped-Jerk trajectory for vibration reduction [PDF]

open access: yes, 2014
This paper derives a jerk-shaped profile to address the vibration reduction of underdamped flexible dynamics of motion system. The jerk-limited profile is a widespread smooth command pattern used by modern motion systems.
BEAREE, Richard
core   +1 more source

Determining the Optimal Scalar Intensity Measure of Floor Communication Towers

open access: yesShock and Vibration, 2022
Various structural types and ground motion characteristics lead to distinct intensity measures of structural seismic performance. For the lattice high-rise steel structure of communication towers, determining the intensity measures to adjust ground ...
Bo Li   +4 more
doaj   +1 more source

Experimental Study on Vibration Reduction Technology of Hole-by-Hole Presplitting Blasting

open access: yesGeofluids, 2021
In order to effectively reduce the disturbance of the precrack blasting vibration on slope rock mass, except paying attention to the damping effect of the precrack, it is also necessary to optimize the blasting parameters and initiation mode of the ...
Jun Ma   +6 more
doaj   +1 more source

The Vibration Velocity and Vibration Level of Near-field Blasting Vibration in an Urban Blasting Site

open access: yesTransactions of the Korean Society for Noise and Vibration Engineering, 2005
The vibration level (dB(V)) and vibration velocity (cm/sec) on the ground and buildings due to the differences of the measuring sites from the blasting source was investigated. To compare with vibration level and vibration velocity theirs magnitude was not surely directly proportional and vibration velocity 0.1 cm/sec was dB(V).
openaire   +2 more sources

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

open access: yesAdvanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha   +7 more
wiley   +1 more source

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