Changlang Jiang, Minqiang Kang, Jili Liu, Qihua Zhu. Research Progress in Laser Rock-Breaking Mechanism for Drilling Acceleration[J]. Laser & Optoelectronics Progress, 2023, 60(17): 1700007
- Laser & Optoelectronics Progress
- Vol. 60, Issue 17, 1700007 (2023)
Fig. 1. Schematic diagram of laser rock breaking
![Temperature distribution[33] and phase transition of rock during fiber laser perforation](/richHtml/lop/2023/60/17/1700007/img_02.jpg)
Fig. 2. Temperature distribution[33] and phase transition of rock during fiber laser perforation
![Surface temperature distribution of granite under different irradiation time[30]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Surface temperature distribution of granite under different irradiation time[30]
Fig. 4. Physical and chemical phenomena of laser-rock interaction
Fig. 5. Homogeneous polymorphic transformation of quartz under temperature and pressure[36]
Fig. 6. Temperature gradient of granite surface[30]. SEM images of (a) melting zone; (b) damage zone; (c) heat-affected zone
Fig. 7. High-speed video image of laser-rock interaction plasma[29]
Fig. 8. Variation of shale drilling specific energy (SE) with laser power under 0.5-inch beam diameter and 0.5-s exposure time[28]
Fig. 9. Strength test of granite irradiated by laser[47]
Fig. 10. Stress change in Z direction of sandstone by elliptic laser irradiation[50].
Fig. 11. Laser interaction with granite in air and water environments[54].(a) Top and bottom of laser perforated rock in air; (b) section of laser perforated rock sample in transparent water [(1) laser hole; (2) glass body; (3) plastic zone]
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