Development of a New Blast Vibration Prediction Model Incorporating Burden Variations in Surface Blasting

The globally followed common vibration predictor model includes distance from source to vibration monitoring location and quantity of explosive charge per delay without giving much consideration to blast design parameters. Though there are qualitative assertions on the influence of burden on the vibration intensity by many researchers, no work on quantification of influence of burden has been reported. This paper deals with the development of a predictor model incorporating burden deviations in the existing predictor equation. The influence of burden on the vibration was viewed from the angle of detonation and rock fracturing during blasting. The new predictor equation is based on existing models developed by other researchers on the influence of burden on the blasthole pressure and vibration intensity as well as on some logical assumptions. The influence of burden on vibration was examined in two independent phases of blasting, and the net effect was calculated by adding the influence in both the phases. The study provides a quantitative explanation for the common observations of increased vibration levels produced by the blast rounds with excess burden and/or misfired shots.

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Research on Wireless Vibration Monitoring System for Devices in the Engine Room

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.503-504.1651 ◽

2012 ◽

Vol 503-504 ◽

pp. 1651-1654

Author(s):

Guo Yong Zhang ◽

Shuo Wu

Keyword(s):

Monitoring System ◽

Vibration Sensor ◽

Vibration Monitoring ◽

Vibration State ◽

Engine Room ◽

On Line ◽

The Common

The vibration can influence the running of devices in the engine room. It is necessary to monitor the vibration state of all running machineries. Through integrating the Bluetooth technology into the common vibration sensor, a wireless on-line vibration monitoring system is designed to monitor all devices. It will be helpful to avoid severe failure and improve the cruising ability.

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Future development of neural network prediction for blast design parameters of production blasting

Explosives and Blasting Technique ◽

10.1201/9781439833476.ch79 ◽

2003 ◽

pp. 625-630 ◽

Cited By ~ 2

Author(s):

V Petr ◽

M Simões ◽

T Rozgonoyi

Keyword(s):

Neural Network ◽

Future Development ◽

Design Parameters ◽

Blast Design ◽

Neural Network Prediction ◽

Network Prediction

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Impact of Blast Design Parameters on Rock Fragmentation in Building Stone Quarries

Current Science ◽

10.18520/cs/v116/i11/1861-1867 ◽

2019 ◽

Vol 116 (11) ◽

pp. 1861

Author(s):

Abhishek Sharma ◽

A. K. Mishra ◽

B. S. Choudhary ◽

Rohit Meena

Keyword(s):

Building Stone ◽

Rock Fragmentation ◽

Design Parameters ◽

Blast Design

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Production Blast-Induced Vibrations in Longhole Open Stoping

Geotechnical Applications for Earthquake Engineering ◽

10.4018/978-1-4666-0915-0.ch009 ◽

2012 ◽

pp. 160-170

Author(s):

John Henning ◽

Hani Mitri

Keyword(s):

Mining Operation ◽

Metal Mining ◽

Blast Vibration ◽

Zone Width ◽

Blast Design ◽

Design Practices ◽

Powder Factor ◽

Vibration Attenuation ◽

Stope Design

This paper examines stope design approaches employed at a metal mining operation in Canada for extraction of transverse primary, transverse secondary, and longitudinal stopes. Variations in stope and slot design, blast design, and blast vibration attenuation are presented in detail. It is shown that the type of blasthole stoping technique employed varies according to stope sequence and ore zone width. Within this range of stopes, blasting design practices have been standardized in terms of drillhole diameter, powder factor, and the type and pattern of the explosives used.

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Design and Implementation of QCA D-Flip-Flops and RAM Cell Using Majority Gates

Journal of Circuits System and Computers ◽

10.1142/s0218126619500798 ◽

2019 ◽

Vol 28 (05) ◽

pp. 1950079 ◽

Cited By ~ 4

Author(s):

Trailokya Nath Sasamal ◽

Ashutosh Kumar Singh ◽

Umesh Ghanekar

Keyword(s):

Circuit Design ◽

High Speed ◽

High Performance ◽

Single Layer ◽

Memory Cell ◽

Design Parameters ◽

Flip Flop ◽

Negative Edge ◽

Wire Crossing ◽

The Common

Quantum-dot cellular automata (QCA) is one of the promising technologies that enable nanoscale circuit design with high performance and low-power consumption features. As memory cell and flip-flops are rudimentary for most of the digital circuits, having a high speed, and a less complex memory cell is significantly important. This paper presents novel architecture of D flip-flops and memory cell using a recently proposed five-input majority gate in QCA technology and simulated by QCADesigner tool version 2.0.3. The simulation results show that the proposed D flip-flops and the memory cell are more superior to the existing designs by considering the common design parameters. The proposed RAM cell spreads over an area of 0.12[Formula: see text][Formula: see text]m2and delay of 1.5 clock cycles. The proposed level-triggered, positive/negative edge-triggered, and dual edge-triggered D flip-flop uses 14%, 33%, and 21% less area, whereas the latency is 40%, 27%, and 25% less when compared to the previous best design. In addition, all the proposed designs are implemented in a single layer QCA and do not require any single or multilayer wire crossing.

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