Final Wall Stability in Metal Open Pit Mines Using Presplit Blasting

Importance of presplit drilling and blasting in open pit mines slope stability study is one of the most considerable parameter for safety and economical factors of open pit mines. failure of mines' …

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Final Wall Stability in Metal Open Pit Mines Using Presplit Blasting

Implementing stable final pit walls in open pit mines during the open pit design phase and mine exploitation has become one of the most important concerns of mining …

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6 Common Blasting Methods In Open Pit Mining

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Final Wall Stability in Metal Open Pit Mines Using …

Importance of presplit drilling and blasting in open pit mines • slope stability study is one of the most considerable parameter for safety and economical factors of open pit mines. • failure of mines' walls can potentially …

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INVESTIGATING SLOPE STABILITY IN AN OPEN PIT …

Adjustments to blast designs were made taking due cognizance of the geological conditions as well as presence of ground water. Adjustments to the wall control blasting techniques need to …

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Application of rock mass classification and Blastability Index for …

The review concentrated on the integration of rock mass classification inputs into final wall blasting and the more specialized perimeter blasting techniques used in the industry. Data was …

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Modeling Study on Cumulative Damage Effects and Safety …

The cumulative damage of the nal wall, which is a critical phenomenon in open-pit mines, poses a serious threat to the safety of mining operations. There-fore, it is imperative to study and …

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Presplitting blasting

This technique is especially effective in back-break control through providing a separating surface between the main blasting pattern and open pit final walls (Dindarloo et al., …

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Modeling Study on Cumulative Damage Effects and Safety …

The cumulative damage of the final wall, which is a critical phenomenon in open-pit mines, poses a serious threat to the safety of mining operations. Therefore, it is imperative …

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International Journal of Rock Mechanics and Mining …

southeast slope of the final wall of the open-pit mine, extending from the bench at EL 690 m to the bench at EL 810 m, with a horizontal length of about 1 km and a vertical …

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Presplitting Techniques and Design in Open Pit Mining: …

Presplitting is a widely used controlled blasting technique in open-pit mining, aimed at minimizing damage to the remaining rock formation and ensuring greater stability …

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Final Pit Wall Stability

This paper discusses the development of a strategy for ensuring long-term geotechnical stability of final pit walls at AngloGold Australia's Sunrise Dam Gold Mine. The strategy makes use of …

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Chapter Open Pit Mining

overburden and tailings (waste) at a specified disposal site outside the final pit boundary. Open pit mining is used for the extraction of both metallic and nonme- ... blasting, and haulage) are …

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Blasting near open pit walls

Abstract: The topic of blasting near pit walls is one that invokes mixed reactions from different mining departments. For many mine operations and mine scheduling departments, it often …

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PIT SLOPE MANUAL_CHAPTER 7 PERIMETER BLASTING

adjacent pit wall. However, blast vibration may damage pit walls and buildings sonie distance from the blast. Explosives for open pit mining have a wide range of borehole pressures. For a given …

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Final Wall Stability in Metal Open Pit Mines Using …

Implementing stable final pit walls in open pit mines during the open pit design phase and mine exploitation has become one of the most important concerns …

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Modeling Study on Cumulative Damage Effects and Safety …

The cumulative damage effects on the final wall of the open-pit under blasting are investigated. A model coupled with tensile damage and Drucker-Prager yield criteria is …

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Application of rock mass classification and Blastability Index for …

Conventional blasting rules of thumb used to develop blast designs are based on parametric ratios, with insufficient consideration of the rock mass factors that influence the achievability of …

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Case Study Reducing Vibration near Final Walls

electric shovels and 12m benches. Wall control blasting was crucial to the viability of this mine, and the walls were presplit in advance. The final 30m of bench against the final walls were …

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Application of rock mass classification and Blastability Index …

Conventional blasting rules of thumb used to develop blast designs are based on parametric ratios, with insufficient consideration of the rock mass factors that influence the achievability of …

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Blast induced damage mechanism on final walls and the blasting …

Abstract: At most open pit mines, profitability is affected appreciably by the final slope angles of the pit. Steep stable and safe pit walls can be formed by accurate final wall drilling and blasting …

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Final Wall Stability In Metal Open Pit Mines Using Presplit Blasting

Implementing stable final pit walls in open pit mines during the open pit designing phase and mine exploitation has become one of the most important concerns of mining …

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Design of controlled blasting (pre-splitting) in Golegohar iron ore

This technique is especially effective in back-break control through providing a separating surface between the main blasting pattern and open pit final walls. In this study, a …

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Presplitting Techniques and Design in Open Pit Mining: …

Presplitting has been successfully applied in numerous open-pit mines around the world. It is particularly useful in areas where wall stability is critical, such as final pit walls and haul roads.

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Delay time optimization in blasting operations for mitigating the

Xinqiao Mining Co., Ltd has an open-pit mine with 4 million ton Pyrites production p.a. At present, the final pit walls with about 200 m height have occurred.According to the …

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Application of controlled blasting (Pre-Splitting) using large …

In the direct mining costs, in open pit mining, drilling and blasting are one of the biggest single line items in mining budget. In recent years, the tendency has been to minimize mining costs by …

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Geotechnical Considerations In Open Pit Mines

Geotechnical Mining One. final wall blasting in open pit mines resourceplus co in. IMPLEMENTATION OF REAL TIME GEOTECHNICAL MONITORING AT AN. Geotechnical …

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1998

This document discusses measuring and modeling blast-induced damage in open pit mine walls. It describes: 1) Developing predictive vibration models based on field measurements to predict …

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Limiting Blast-induced Damage On Final Pit Walls

Controlling damage by designing pit-wall geometries that are more robust to blasting along the final wall. Controlling damage by using accurate electronic delay detonators …

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Reduce High Wall Damage Through Optimized Trim …

Damage to Final Pit Wall Improved Through Optimized Trim Blasting. THE CHALLENGE The condition and stability of final pit walls in deep open pits are crucial for the safety of personnel and the overall economies of …

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The Measurement and Control of Blast Induced Damage of Final …

The successful development of surface mining operations depends, amongst other factors, on the successful creation of final pit walls which offer long term structural stability.

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Presplitting Techniques and Design in Open Pit Mining: …

Fig. 3: Blasting analysis on WipFrag 4 (). 3. Conclusion Presplitting is a proven technique for controlling overbreak and enhancing the stability of the remaining rock formation …

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Blast induced damage mechanism on final walls and the …

Steep stable and safe pit walls can be formed by accurate final wall drilling and blasting techniques. The violence of the blasting process both leaves damaged surfaces that must be …

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Numerical study on spatial distribution of blast-induced damage …

Despite adopting controlled blasting methods such as smooth blasting, presplitting blasting etc., the occurrence of a damage zone in the final wall is inevitable. 4 As an important …

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Improvement of blasting practices to minimise wall damage at …

Abstract: Wall damage in large open pit mines is often induced by adjacent blasting activities as a consequence of improper blast design considerations on unforeseen geotechnical conditions. …

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Presplitting: definition, importance and design considerations

Image credit: KAZ Minerals Introduction Presplitting is a widely used controlled blasting technique in open-pit mining, aimed at minimizing damage to the remaining rock …

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