drilling blasting methods

Drilling and Blasting - an overview ScienceDirect Topics
2012.1.1 Open trenches and shafts are excavated by the drilling and blasting method for connection to the underground metro system. The controlled bench blasting method is used in open excavation, under busy and congested roads that are flanked by old or
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A new excavation technology of blasting combined with TBM
Drilling and blasting method is the traditional excavation method in underground engineering, which is considered to be suitable because of its simple mechanical
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Optimized design of drilling and blasting operations in open
2018.11.1 In this research, the system dynamic method for modelling drilling and blasting operations was proposed. This model could efficiently connect and evaluate all
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Evaluation and optimization of blasting approaches to
2020.5.1 At present, the drill-and-blast efficiency and economic advantages of large blasthole blasting have been widely recognized in civil blasting engineering field, but its
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Drilling and blasting designs for parallel hole cut and V-cut method
2023.2.11 1 Altmetric Metrics Abstract The Karadon mine, where field studies were carried out, is located in the north west of Turkey and is considered to be a highly
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Theory and numerical simulation of deep hole cut blasting
2023.9.1 The rock drilling and blasting method is the most commonly adopted method for rock roadway excavation in China, where cutting efficiency is the key factor affecting
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Optimising blast pulls and controlling blast-induced
2019.3.1 Drilling and blasting method is generally inevitable for rock excavation activities in mining, quarrying and civil construction works. Use of explosive energy
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Emerging trends in drilling and blasting technology: concerns
2021.4.1 Introduction In blasting, an explosive is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly,
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Theory and numerical simulation of deep hole cut blasting
2023.9.1 The rock drilling and blasting method is the most commonly adopted method for rock roadway excavation in China, where cutting efficiency is the key factor affecting
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(PDF) Intelligent Classification Model of Surrounding Rock of
2020.12.1 To solve the uneven burden of same-type holes reducing the blasting efficiency due to the limitation of drilling equipment, we need a double-face program-controlled planning method for hole ...
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Innovative Blasting Practices for Underground Hard Rock
2023.5.31 The excavation of narrow vein ore deposits by drilling and blasting is a challenging task. The extent of damage while blasting in such deposit leads beyond the ore deposits. Accordingly, the wall rock gets damaged and induces dilution. Different methods have been used worldwide to excavate the narrow vein ore deposits.
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Research and Analysis on the Influence of Small
2021.12.29 In order to study the vibration influence of tunnel drilling and blasting method on the built tunnel with small clear distance, taking the intersection of Zhuhai Dahengqinshan No. 1 tunnel and Zhuji urban rail
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Theory and numerical simulation of deep hole cut blasting
2023.9.1 The rock drilling and blasting method is the most commonly adopted method for rock roadway excavation in China, where cutting efficiency is the key factor affecting the excavation speed. The conventional wedge-shaped cut blasting is not suitable for deep hole blasting since the method requires the explosives to be concentrated at the bottom of ...
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(PDF) Drilling and blasting as a tunnel excavation method
2000.1.1 The typical cycle of excavation by blasting is performed in the following steps (Figure 1): • Drilling blast holes and loading them with explosives. • Detonating the blast, followed by ...
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钻孔爆破法 - 百度百科
钻孔爆破法一直是地下建筑物岩石开挖的主要施工方法。. 这种方法对岩层地质条件适应性强、开挖成本低，尤其适合岩石坚硬的洞室施工。. 钻孔爆破法开挖地下建筑物，应根据设计要求、地质情况、爆破材料及钻孔设备等条件作好爆破设计。. 钻爆设计的主要 ...
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Underground Ring Blasting SpringerLink
2023.5.31 Ring blasting method is practised for the final excavation of rock mass in longhole stoping. The method is advantageous in achieving the faster production pace due to the use of large diameter drilling and blasting. However, this method has many associated operational challenges. These challenges have been overcome using the technological ...
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Controlled blasting design for efficient and sustainable
2022.8.20 Underwater blasting, often known as submarine blasting, is used for a wide range of purposes. This includes harbor and channel widening, trench excavation for establishing oil and gas pipelines and communication cables, demolition operations, and substructure construction. Particularly, underwater rock blasting is the most difficult and
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钻爆施工隧道围岩爆破损伤累积效应研究 - cdut.cn
2019.3.29 XU Zhong，DENG Hui，LU Ping，et al. Study on cumulative blasting damage effect on surrounding rock of tunnel excavated with drilling-blasting method[J]. Water Resources and Hydropower Engineering，2018，49(2):70-76. 钻爆施工隧道围岩爆破
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Mitigation of rock burst events by blasting techniques
2015.4.7 Rock burst is a type of dynamic geological hazard caused by excavation. However, the response of the surrounding rocks may differ, depending on blasting or mechanical excavation method (Yan et al., 2011, Yan et al., 2012, Ji et al., 2013, Gong et al., 2012, Phien-wej and Cording, 1990). Therefore, the prevention of rock bursts should
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Design method of blasthole charge structure based on lithology ...
2021.12.20 After blasting, there was a large range of irregular uplift in the blasting area, the height of the blasting pile was more than 2 m, the blasting pile was too long and the buried channel was more ...
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Study on Catastrophe Information Characteristics
2022.11.23 When building tunnels in karst areas, the hidden high-pressure water-bearing karst caves are prone to cause geological disasters such as water inrush and mud gushing. In order to study the disaster
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Application of dust control method based on water
2023.4.15 The dust produced by tunnel drilling and blasting method is one of the most serious dust hazards, in which the original dust concentration produced during the blasting period far exceeds the requirements of China occupational health standards, which seriously affects the occupational health and safety of workers. Therefore, people pay
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Drilling and blasting designs for parallel hole cut and V-cut method
2023.2.11 Drilling and blasting are a widely used excavation method in tunnelling applications due to its versatility, lower initial investment cost and easier applicability compared to mechanical excavation.
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(PDF) Comparative Study of the Excavation Damage and
2020.12.9 The drilling-blasting method is more prone to structural controlled failure of the surrounding rock mass, while the TBM method would induce high stress concentration near the edge of excavation ...
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Theoretical Analysis of Rock Blasting Damage in
2022.9.30 With the large-scale construction of urban traffic tunnels in China, it has become common to underpass existing buildings and structures such as sewage box culverts and pipelines using the drilling-blasting method. How to analyze accurately the blasting damage of surrounding rock and reasonably determine the safe distance
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Optimising blast pulls and controlling blast-induced
2019.3.1 Drilling and blasting method is generally inevitable for rock excavation activities in mining, quarrying and civil construction works. Use of explosive energy probably is the most widely used means of crushing rock, as well as the most cost-effective rock excavation method ( Yilmaz and Unlu, 2014 ).
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Innovative Blast Design for Reduction of Boulder Generation
2023.10.26 This method has been designed by assessment of the reason for the boulder generation. The assessment suggested that the blasting in such rocks needed explosive energy throughout the column. The boulder generation was seen mostly from the stemming portion. Accordingly, the methods with pocket charging and satellite hole
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Piezoelectric-based damage-depth monitoring method for
2021.1.3 As shown in Fig. 4, sample S2 is based on a traditional drilling and blasting charge method; the rest of the process is the same as that for sample S1. The following sections provide further details regarding the methods used herein. Fig. 3. Flow diagram of the whole experimental process for specimen S1.
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钻爆法 - 搜狗百科
2022.6.7 Drilling-Blasting Method 展开用途隧道挖掘展开缺点安全系数低展开词条标签：科学学科免责声明搜狗百科词条内容由用户共同创建和维护，不代表搜狗百科立场。如果您需要医学、法律、投资理财等专业领域的建议，我们强烈建议您独自对 ...
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