TY - JOUR AU - Man, Nguyễn Xuân AU - Phong, Nguyễn Duyên AU - Hue, Nguyễn Ngọc AU - Hinh, Phạm Đức PY - 2022/03/30 Y2 - 2024/03/28 TI - EFFECT OF BLASTING ON STRESS STATE IN THE ROCK AROUND THE TUNNEL JF - Binh Duong University Journal of Science and Technology JA - JST VL - IS - 1 SE - TECHNICAL SCIENCES – TECHNOLOGICAL SCIENCES DO - 10.56097/binhduonguniversityjournalofscienceandtechnology.vi1.19 UR - https://tapchi.bdu.edu.vn/index.php/jst/article/view/19 SP - AB - <p>Build tunnel in hard rock, usually using the drill-blasting method to break the tunnel stone. After blasting and shoveling, the gaps will receive gaps within the boundaries as required by the design. The rock mass surrounding the tunnel outside the boundary is not destroyed, but the crack is generated, the Stick force <em>C</em> and the frictional internal angle <em>φ</em> of the rock mass decreases, so that the strength of the rock decreases as compared to before the explosion mine. The level of rock durability is dependent on the blasting technology. This article examines the change of rock deformation due to blasting, which examines the impact of blasting on the stresses in the rock around the tunnel.</p> ER -