A case study to improve blasting efficiency by the use of emulsion explosives

被引：3

作者：

Sabanov, Sergei ^{[1
]}

Nikitin, Oleg ^{[2
]}

Qureshi, Abdullah ^{[1
]}

Dauitbay, Zhaudir ^{[1
]}

机构：

[1] Nazarbayev Univ, Sch Min & Geosci, 53 Kabanbay Batyr Ave, Nur Sultan, Kazakhstan

[2] Enefit Power AS, Eesti Energia, Ida Viru maakond, Estonia

来源：

OIL SHALE | 2023年 / 40卷 / 03期

关键词：

blasting efficiency; emulsion explosives; velocity of detonation; blasting energy distribution; specific charge; OIL-SHALE; DAMAGE; ROCK; FRAGMENTATION; FRACTURE; VELOCITY;

D O I：

10.3176/oil.2023.3.05

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This work analyses issues associated with the deteriorated blasting efficiency by the use of emulsion explosives in underground oil shale mines that utilise room and pillar mining methods. The problems were connected with the reduction in entry advance, shattering of pillar walls and falling of the roof. The aim of this study is to improve blasting efficiency that can guarantee a sufficient entry advance and secure stable conditions of the pillars and the immediate roof. The improved blasting pattern was successfully tested under in-situ conditions. It was demonstrated that the entry advance and the stability of the immediate roof and pillar walls were significantly enhanced as a result.

引用

页码：244 / 259

页数：16

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