Research of Colliding Ground Vibration in Blasting Demolition

2013 ◽  
Vol 765-767 ◽  
pp. 2284-2287
Author(s):  
Ze Pei Xu ◽  
Xi Bing Li
Keyword(s):  
Surface Wave ◽  
Shear Wave ◽  
Vibration Frequency ◽  
Ground Vibration ◽  
Compressional Wave ◽  
Vertical Vibration ◽  
Blasting Vibration ◽  
Frequency Bandwidth ◽  
Horizontal Vibration ◽  
Vibration Wave

Colliding ground vibration wave consists of compressional wave, shear wave and surface wave, and it spreads by the attenuation through the different rock or soil. Comparing from the frequency and duration to the blasting vibration, with the engineering example, the analysis on the characteristics of colliding ground vibration has made. It is the conclusion that its vibration frequency is close to the building, and the vertical vibration is greater than horizontal vibration, and frequency bandwidth decreases along the distance, while the duration increases.

Influences of Tunnel Excavation Blasting Vibration on Surface High-Rise Building

2010 ◽  
Vol 163-167 ◽  
pp. 2613-2617
Author(s):  
Hai Liang Wang ◽  
Tong Wei Gao
Keyword(s):  
Vibration Frequency ◽  
Vertical Vibration ◽  
Frame Structure ◽  
Vibration Monitoring ◽  
Vibration Velocity ◽  
Blasting Vibration ◽  
Road Tunnel ◽  
Concrete Frame ◽  
High Rise ◽  
Order Of Magnitude

According to the 33 floors high building, blasting vibration monitoring had been carried on. The building, along Yunnan road tunnel of Qingdao Cross-harbor Tunnel Guide Line Project, has concrete frame structure. Monitoring data had been analyzed. Results showed that rules of vertical vibration velocity and main vibration frequency have similar relevance. Amplification effect of them was existed on the middle and top of the building. From the 2nd floor of downward ground to ground, the value of them suddenly decreased. Main vibration frequency is in the range of 101~102 order of magnitude.

Change Rule of Blasting Vibration Peak Velocity in Brick-Concrete Building

2013 ◽  
Vol 718-720 ◽  
pp. 1878-1881
Author(s):  
Hai Liang Wang ◽  
Xian Bin Xue ◽  
Zhen Huang Zhang ◽  
Jun Tao Wang
Keyword(s):  
Peak Velocity ◽  
Vertical Direction ◽  
Vertical Vibration ◽  
Horizontal Direction ◽  
Blasting Vibration ◽  
Horizontal Vibration ◽  
Guide Line ◽  
Concrete Building

In this paper, the background is Qingdao Cross-harbor Tunnel Guide Line Project. The research on blasting vibration peak velocity was carried out by monitoring a 6-layer brick-concrete building. According the research, we discover that vibration peak velocity in the vertical direction reaches a maximum on the roof of the building. In the horizontal radial and tangential horizontal direction, the maximum appears at the 1st or 2nd floor. Third, within certain distance from blasting center, the value of horizontal vibration peak velocity is larger than vertical vibration peak velocity.

scholarly journals Prediction of the peak velocity of blasting vibration based on various models at Ninh Dan quarry, Thanh Ba district, Phu Tho province

2020 ◽  
Vol 61 (4) ◽  
pp. 102-109
Author(s):  
An Dinh Nguyen ◽  
Hieu Quang Tran ◽  
Bao Dinh Tran ◽  
Phonepaserth Soukhanouvong ◽  
Keyword(s):  
Peak Velocity ◽  
Mining Industry ◽  
Ground Vibration ◽  
Blasting Vibration ◽  
Blasting Operation ◽  
Surface Mines ◽  
Forecasting Models ◽  
Surrounding Environment ◽  
Vibration Wave ◽  
The Impact

In mining industry, blasting operation is effective method to fragment rocks, supporting for the next operations in surface mines such as loading, and hauling works. However, blasting operation also impacts adversely on buildings and the surrounding environment, in which the vibration wave is one of the most severe impacts. Therefore, the implementation of the forecasting models of vibration speed contributes significantly to guarantee the safety of buildings located within the impact areas of the vibration wave. This paper employs the monitoring results of blasting activity at the Ninh Dan limestone quarry situated in Thanh Ba district, Phu Tho province, to develop different forecasting models that determine the effects of the ground vibration speed in the surrounding buildings. The results show that the models USBM and Ambraseys Hendron having more accuvate prediction than other models.

Influences Discipline of Tunnel Blasting Vibration on 20 Floors Reinforced Concrete Frame-Shear Wall Structure Building

2011 ◽  
Vol 199-200 ◽  
pp. 874-877
Author(s):  
Hai Liang Wang ◽  
Li Wang ◽  
Li Sheng Liu ◽  
Bi Jun Wang
Keyword(s):  
Reinforced Concrete ◽  
Vibration Frequency ◽  
Shear Wall ◽  
Vertical Vibration ◽  
Vibration Velocity ◽  
Wall Structure ◽  
Blasting Vibration ◽  
Reinforced Concrete Frame ◽  
Concrete Frame ◽  
Structure Building

According to the 20 layers reinforced concrete frame-shear wall structure building, we carried on blasting vibration monitoring in Qingdao Cross-harbor Tunnel Guide Line Project. The monitoring data of vertical vibration velocity and vertical vibration frequency had been analyzed. The results show vertical vibration velocity and vertical vibration frequency had part of intrinsic association. Vertical vibration velocity was enlarged on the top of the building. Vertical vibration frequency was in the range of 101-102 order of magnitude.

scholarly journals Evaluate impacts of ground vibration on construction projects and determine reasonable blasting scale for Phong Xuan limestone quarry in Thua Thien Hue province

2020 ◽  
Vol 61 (4) ◽  
pp. 118-125
Author(s):  
Hieu Quang Tran ◽  
An Đinh Nguyen ◽  
Bao Dinh Tran ◽  
Phonepaserth Soukhanouvong ◽  
Keyword(s):  
Construction Projects ◽  
Ground Vibration ◽  
Blasting Vibration ◽  
Measurement Equipment ◽  
Monitoring Equipment ◽  
Limestone Quarry ◽  
Limestone Quarries ◽  
Vibration Wave ◽  
First Time

One of the advanced methods to evaluate the effects of blasting vibration wave on the constructions in need of protection surrounding limestone quarries is to use measurement equipment, according to Norm QCVN 02:2008/BCT of Ministry of Industry and Trade (Vietnam). It is the first time in Vietnam when the authors employ the blasting monitoring equipment MR3000BLA made of Bartec Syscom (Switzerland). The equipment is integrated with the new 4.0 technology to measure the effects of blasting vibration waves on the constructions in need of protection surrounding and determine the reasonable size of blasting for Phong Xuan limestone quarry in Thua Thien Hue province.

scholarly journals The Polito Surface Wave flat-file Database (PSWD): statistical properties of test results and some inter-method comparisons

2021 ◽  
Vol 19 (6) ◽  
pp. 2343-2370
Author(s):  
Federico Passeri ◽  
Cesare Comina ◽  
Sebastiano Foti ◽  
Laura Valentina Socco
Keyword(s):  
Surface Wave ◽  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Active Surface ◽  
Statistical Properties ◽  
Test Results ◽  
Flat File ◽  
Research Fields ◽  
Database Content

AbstractThe compilation and maintenance of experimental databases are of crucial importance in all research fields, allowing for researchers to develop and test new methodologies. In this work, we present a flat-file database of experimental dispersion curves and shear wave velocity profiles, mainly from active surface wave testing, but including also data from passive surface wave testing and invasive methods. The Polito Surface Wave flat-file Database (PSWD) is a gathering of experimental measurements collected within the past 25 years at different Italian sites. Discussion on the database content is reported in this paper to evaluate some statistical properties of surface wave test results. Comparisons with other methods for shear wave velocity measurements are also considered. The main novelty of this work is the homogeneity of the PSWD in terms of processing and interpretation methods. A common processing strategy and a new inversion approach were applied to all the data in the PSWD to guarantee consistency. The PSWD can be useful for further correlation studies and is made available as a reference benchmark for the validation and verification of novel interpretation procedures by other researchers.

scholarly journals Relationship between Shear Wave Velocity and SPT-N Value for Residual Soils

2018 ◽  
Vol 203 ◽  
pp. 04009
Author(s):  
Nor Faizah Bawadi ◽  
Nur Jihan Syamimi Jafri ◽  
Ahmad Faizal Mansor ◽  
Mohd Asri Ab Rahim
Keyword(s):  
Surface Wave ◽  
Shear Wave ◽  
Wave Velocity ◽  
Shear Wave Velocity ◽  
Soil Profile ◽  
Dynamic Parameter ◽  
Kuala Lumpur ◽  
Residual Soils ◽  
Standard Penetration Testing ◽  
Wave Methods

The shear wave velocity (Vs) is an important dynamic parameter in the field of geotechnical engineering. One of the surface wave methods is Spectral Analysis of Surface Wave (SASW) has received attention in obtaining the shear wave velocity (Vs) profile by analysing the dispersion curve. SASW is a non-destructive test, fast and time-effective for field survey. Thus, this paper proposed the application of SASW method to obtain the shear wave velocity (Vs) to represent the soil profile. This paper aims to determine the shear wave velocity (Vs) profile using SASW method, where the testing has been conducted at three site of residual soils located in Damansara, Kuala Lumpur and Nilai area. In this study, it shows that the soil profile obtained from shear wave velocity value is similar pattern with profile that obtained using Standard Penetration Testing (SPT), which conventional used in field. The shear wave velocity are proportionally increase with depth.

scholarly journals Pulsating fields of a thin film in a static magnetic field under vertical vibrations

2021 ◽  
Vol 2103 (1) ◽  
pp. 012233
Author(s):  
I V Volodin ◽  
A A Alabuzhev
Keyword(s):  
Magnetic Field ◽  
Thin Film ◽  
Surface Wave ◽  
Film Thickness ◽  
Static Magnetic Field ◽  
Surface Profile ◽  
Vertical Vibration ◽  
Vibrational Amplitude ◽  
Gravitational Forces ◽  
Vertical Vibrations

Abstract In the present paper a dynamics of a thin ferrofluid film under the vertical vibration in a static magnetic field is examined. The vibrational amplitude is assumed to be greater than film thickness so that vibrational force is greater than magnetic and gravitational forces. The pulsating part and the averaged part of the hydrodynamics fields are obtained. The solution of pulsating part for the traveling surface wave is found. The equation for the averaged surface profile is found.

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