[1]阿比尔的①②,胡尊镕①②,傅林①②,等.CO2相变致裂岩石的损伤范围的计算及影响因素研究[J].爆破器材,2024,53(06):41-49.[doi:10.3969/j.issn.1001-8352.2024.06.007]
　ABI Erdi,HU Zunrong,FU Lin,et al.Damage Range Calculation and Influencing Factors of Rock Fractures Caused by CO2 Phase Transition Blasting[J].EXPLOSIVE MATERIALS,2024,53(06):41-49.[doi:10.3969/j.issn.1001-8352.2024.06.007]
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CO2相变致裂岩石的损伤范围的计算及影响因素研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
53
期数:
2024年06
页码:
41-49
栏目:
爆炸材料
出版日期:
2024-12-06

文章信息/Info

Title:
Damage Range Calculation and Influencing Factors of Rock Fractures Caused by CO2 Phase Transition Blasting
文章编号:
5958
作者:
阿比尔的①②; 胡尊镕①②; 傅林①②; 韩亚峰①②; 刘明维①②
①重庆交通大学国家内河航道整治工程技术研究中心 （重庆，400074）
②重庆交通大学山区公路水运交通地质减灾重庆市教委重点实验室（重庆，400074）
Author(s):
ABI Erdi①②;  HU Zunrong①②;  FU Lin①②;  HAN Yafeng①②;  LIU Mingwei①②
① Nationl Engineering Research Center for Inland Waterway Regulation, Chongqing Jiaotong University (Chongqing, 400074)
② Key Laboratory of Geological Hazards Mitigation for Mountainous Highway and Waterway, Chongqing Municipal Education Commission, Chongqing Jiaotong University (Chongqing, 400074)
关键词:
液态CO2; 相变致裂; 损伤半径; 泄能片厚度; CO2充装质量
Keywords:
liquid CO2 ;  phase transition blasting;  damage radius;  thickness of energy release sheet;  CO2 filling mass
分类号:
TD235
DOI:
10.3969/j.issn.1001-8352.2024.06.007
文献标志码:
A
摘要:
在CO2相变致裂岩石技术中，为探究岩石损伤范围与CO2相变致裂参数的关系，根据Mises准则和损伤力学理论建立了CO2相变冲击岩石的致裂损伤半径计算公式。利用3DEC软件模拟了不同泄能片厚度下岩石的致裂损伤半径，并与理论计算相比较，验证了所建模型的准确性。分析了泄能片厚度、岩石强度、致裂孔孔径、CO2充装质量等因素对岩石损伤的影响规律。结果表明：岩石的致裂损伤半径与泄能片厚度、CO2充装质量呈对数增长关系，与岩石强度、致裂孔孔径呈指数衰减关系；增加泄能片厚度是增大岩石致裂损伤半径的最有效手段；致裂孔孔径的增大会使岩石的损伤范围迅速减小。可为CO2相变致裂岩石的损伤机制、技术参数选取等提供参考。
Abstract:
In the technology of rock fractures caused by CO2 phase transition, in order to study the relationship between the damage range of rocks and the CO2 phase transition fracturing parameters, a calculation formula for the damage radius of rock fractures caused by CO2 phase transition impact was established based on Mises criterion and damage mechanics theory. The damage radius of rocks with different thicknesses of energy release sheet was simulated using 3DEC software, and compared with theoretical calculations to verify the accuracy of the established model. The influence of factors such as thickness of the energy release sheet, rock strength, diameter of borehole, and CO2 filling mass on rock damage was analyzed. The results show that the damage radius has a logarithmic growth relationship with the thickness of the energy release sheet and CO2 filling mass, and an exponential decay relationship with the rock strength and the diameter of borehole. Increasing the thickness of the energy release sheet is the most effective way to increase the damage radius. The increase in the diameter of the borehole will rapidly reduce the damage range of rock. It can provide references for the damage mechanism and technical parameter selection in CO2 phase trasition blasting.

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备注/Memo

备注/Memo:
收稿日期：2024-03-18
基金项目：国家自然科学基金青年基金(41907261)；重庆交通大学研究生科研创新项目(2022S0023)；重庆市水利科技项目（CQSLK-2022015）
第一作者：阿比尔的(1988—)，男，博士，副教授，主要从事岩石冲击损伤力学等领域的教学与科研工作。E-mail：abierdi@163.com
通信作者：傅林(1998—)，男，硕士研究生，主要从事岩石冲击损伤力学等领域的研究工作。E-mail：cjfulin@163.com
更新日期/Last Update: 2024-12-05