ارتباط با ما
info@bertkelly.org
با ما تماس بگیرید
0086-21-58386256
info@bertkelly.org
0086-21-58386256
This paper presents a method to include bedding planes in open pit coal mines. Ground vibration monitoring data were obtained from the two largest open pit coal mines in Indonesia (PT. ... technology to establish threshold values of blast vibrations triggering sliding of geological faults at a lead-zinc open pit mine. International Journal of ...
A field study was conducted to evaluate the vibration risks to the operators using mining machines in open pit mines. Vibration levels and whole-body vibration (WBV) …
In an open-pit mine slope, rock mass has multiple joint structures and blasting operations have an obvious influence on its stability. Therefore, accurately predicting the blasting vibration is ...
Blasting is one of the cheapest and effective methods for breaking rock mass in open-pit mines. However, its side effects are not small such as ground vibration (PPV), air overpressure, fly rock, back break, dust, and toxic. Of these side effects, blast-induced PPV is the most dangerous for the human and surrounding environment. Therefore, evaluating and …
To measure ground vibration induced by blasting operations in open-pit mine, peak particle velocity (PPV) is considered a standard criterion for evaluating the intensity of the ground vibration. More than 80% of the energy of explosives is released by generating ground vibrations that spread through the rock and soil to surrounding structures ...
Blasting is widely used in quarries and mining production processes. It is the beneficial industrial technology which provides achievement of expected results in a short period of time with relatively low cost. Never one less, blasts produce undesirablevibrations and sounds. This current investigation reports the ground motion and airblast over pressure measurements …
Request PDF | A comparison of artificial neural network and empirical technique for predicting blast-induced ground vibration in open-pit mine | Ground vibration is one of the undesirable effects ...
Ground vibration generated from blasting activities is a major problem in mine open-pit slopes and nearby properties, and it can endanger the inhabitants in the surrounding environment. To understand better the influence of blasting activities in the open-pit mine, it is important to determine the propagation and attenuation of the blast-induced vibration in open …
2.1 General Information of the Open Pit Slopes. A deep pit has been formed through the past 100 years of surface mining activities, which is 2400 m long in the east west direction and 1000 m wide in the north south direction on the surface, as shown in Fig. 2.The eastern section of open pit of the Daye Iron Mine was selected as the research area, as …
vibration testing of an open-pit mine slope. The numerical. simulation analysis method is a common tool to solve min-ing rock mechanics problems. Hu et al. [13] proposed the.
Ground vibration (PPV) is one of the hazard effects induced by blasting operations in open-pit mines, which can affect the surrounding structures, particularly the stability of benches and …
The Rampura Agucha open-pit lead zinc mine is producing 5.7 Mt/a of ore and has started its underground part, which is slated to produce initially 2–2.4 Mt/a and 4.5 Mt/a in the near future. The open-pit mine is currently working at 326 m depth and is designed to reach 421 m deep.It has been planned to operate the underground mine maintaining 50 m parting from …
The influencing factors of blasting vibration in open pit mines are analyzed in detail, and the relationship among various parameters in various factors is sorted out. (3) A method of optimization and prediction of blasting vibration effect parameters in open pit mine based on depth neural network algorithm is proposed.
3.3 Open-pit mine blasting vibration monitoring 3.3.1 Purpose of blasting vibration monitoring. Through blasting vibration monitoring, information on blasting vibration waves, such as vibration speed and frequency, can be obtained, and the blasting attenuation propagation law can be linearly analyzed by regression according to measured blasting ...
This open-pit coal mine is the deepest open-pit coal mine so far (−310 m below sea level) and it is located near by several other open-pit coal mines (e.g., Cao Son and Deo Nai). The hardness of rockmass in this area is around 10 to 12 according to the Protodiakonov's rock classification.
The whole-body vibration exposure measurements were collected from a fleet of vehicles utilized daily in an open-pit surface coal mine located in the Northeastern region of Colombia . The mine operates a fleet of approximately 500 pieces of earth-moving mining equipment and vehicles.
This open-pit coal mine is the deepest open-pit coal mine so far (−310 m below sea level) and it is located near by several other open-pit coal mines (e.g., Cao Son and Deo …
DOI: 10.2174/11010627 Corpus ID: 8639362; Vibration Safety Criteria for Surficial Rock Mass of Open Pit Slope Affected by Underground Mining Blasting Operations @article{Jiang2017VibrationSC, title={Vibration Safety Criteria for Surficial Rock Mass of Open Pit Slope Affected by Underground Mining Blasting Operations}, author={Nan Jiang and …
Blast-induced ground vibration (GV) is a hazardous phenomenon in open-pit mines, and it has unquestionable effects, such as slope instability, deformation of structures, …
The ournal of the Southern African Institute of Mining and Metallurgy VO MA 222 235 Assessment of vibration exposure of mine machinery operators at three different open-pit coal mines by A. Tekin1 Synopsis In almost all branches of industry, machinery and equipment in operation cause vibration. Some sources
A project for monitoring, analysis, and modelling trim blasting at an open pit copper/molybdenum mine in Canada in 2021 was conducted using Orica's in-house developed proprietary tools, which includes the accelerometer near-field vibration monitoring system, the Multiple Seed Waveform near-field and far-field blast vibration model, and the multiple …
The in situ open pit slope resembles an approximately triangle shape (Fig. 2a) with a length of 180 m and a height of about 50 m; the slope predominantly consists of both sand and gravel mixtures with an average slope angle of 17°. Integrated Blast-UM blasting vibration monitors were installed for three-dimensional monitoring of the slope to collect vibration …
This study was focused on the Anguran lead–zinc open-pit mine (Iran), which is located at between longitudes 47° 23′ 27″ N and 47° 25′ 50″ N, and between latitudes 36° 36′ …
The Rampura Agucha open-pit lead zinc mine is producing 5.7 Mt/a of ore and has started its underground part, which is slated to produce initially 2–2.4 Mt/a and 4.5 Mt/a in the near future.The open-pit mine is currently working at 326 m depth and is designed to reach …
vibration occurring in Jinduicheng open-pit mine. The Jinduicheng molybdenum (Mo) open-pit mine, founded in 1958, is located in Huaxian County, Shaanxi Province, Peoples Republic of China (Fig. 1). It is one of the largest producers of Mo in Asia; its life span is expected to be more than 100 years. The mines operation involves drilling,
A certain iron mine is located in Yueyang City, Hunan Province, and is engaged in the mining and beneficiation of iron ore. The mining method employed is open-pit mining. The mineral reserve in the mining area amounts to 320 million tons, with an annual production capacity of 2.33 million tons of iron ore.
Assessment of noise and ground vibration induced during blasting operations in an open pit mine — A case study on Ewekoro limestone quarry, Nigeria. Author links open overlay panel Thomas B Afeni a, Stephen K Osasan b. Show more. ... Vibrations resulting from blast operations travel from the source to the receiver both through the ground ...
DOI: 10.1016/J.IJRMMS.2015.09.009 Corpus ID: 128652098; Blast vibration effects in an underground mine caused by open-pit mining @article{Singh2015BlastVE, title={Blast vibration effects in an underground mine caused by open-pit mining}, author={P. Singh and Monalisa Roy and Ranjit Kumar Paswan and Ravi Kant Dubey and Carsten Drebenstedt}, …
Section snippets General information of the open pit slopes. Daye Iron Mine is located in Tieshan District, Huangshi City, Hubei Province, PR China, about 90 km west to Wuhan City, 25 km east to the downtown of Huangshi City and 15 km southeast to Daye City, as shown in Fig. 1.Throughout 100 years of mining activities, a deep open pit of 2400 m long …
Prediction and parameter optimization are effective methods for mine personnel to control blast-induced ground vibration. However, the challenge of effective prediction and optimization lies in the multi-factor and …
