Study on Fracture Propagation in Rock Masses under High‑voltage Electric Pulse and Hydraulic Fracturing Based on Phase Field Method

RAO Pingping; WANG Junyao; JIN Xiao; CUI Jifei

doi:10.13409/j.cnki.jdpme.20240828004

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Study on Fracture Propagation in Rock Masses under High‑voltage Electric Pulse and Hydraulic Fracturing Based on Phase Field Method

更新时间：2026-04-15

- Study on Fracture Propagation in Rock Masses under High‑voltage Electric Pulse and Hydraulic Fracturing Based on Phase Field Method
- Journal of Disaster Prevention and Mitigation Engineering Vol. 46, Issue 2, Pages: 325-336(2026)
- 作者机构：
  
  上海理工大学环境与建筑学院，上海 200093
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.20240828004
  CLC： TE242
- Received：28 August 2024，
  
  Revised：2024-11-06，
  
  Published：28 April 2026
- 稿件说明：
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饶平平,王俊瑶,金潇等.基于相场法的高压电脉冲‑水力压裂岩体裂缝扩展规律研究[J].防灾减灾工程学报,2026,46(02):325-336.

RAO Pingping,WANG Junyao,JIN Xiao,et al.Study on Fracture Propagation in Rock Masses under High‑voltage Electric Pulse and Hydraulic Fracturing Based on Phase Field Method[J].Journal of Disaster Prevention and Mitigation Engineering,2026,46(02):325-336.
饶平平,王俊瑶,金潇等.基于相场法的高压电脉冲‑水力压裂岩体裂缝扩展规律研究[J].防灾减灾工程学报,2026,46(02):325-336. DOI： 10.13409/j.cnki.jdpme.20240828004.

RAO Pingping,WANG Junyao,JIN Xiao,et al.Study on Fracture Propagation in Rock Masses under High‑voltage Electric Pulse and Hydraulic Fracturing Based on Phase Field Method[J].Journal of Disaster Prevention and Mitigation Engineering,2026,46(02):325-336. DOI： 10.13409/j.cnki.jdpme.20240828004.

摘要

为研究高压电脉冲‑水力压裂岩体裂缝扩展规律，以流体力学、断裂力学、损伤力学为基础，基于相场法，利用数值软件，研究了水压和高压电脉冲联合作用下岩体初始裂缝的演化特征，并对岩体裂缝长度的增长值以及岩体的损伤情况进行了描述。研究结果表明，电压、水压、地应力、注水速率及能量释放率对岩体裂缝长度和岩体的损伤均产生一定影响。具体而言，随着水压和电压的增加，岩体的损伤致裂程度加剧。当地应力从8 MPa减小至6 MPa，初始裂缝增长长度增加了30%，岩体损伤面积增加了10%，且地应力应力差越大，裂缝越偏向最大主应力的方向。水压、电压和地应力对岩体初始裂缝增长量以及岩体损伤面积的影响程度排序为：地应力

电压

水压。研究还发现，随着注水速率和能量释放率的提升，初始裂缝的增长量及岩体的损伤面积均呈现增大的趋势。且当注水速率增加至

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18.20333290

3.55599999

时，钻孔附近出现多条短小裂缝且初始裂缝增长量较

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18.20333290

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有大幅度提高。当能量释放率

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3.30200005

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增加到

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10.32933331

2.79399991

时，岩石的初始裂缝和新生裂缝增长显著，且钻孔周围损伤明显加剧。研究结果可为高压电脉冲‑水力压裂岩体中裂缝增长量及岩体损伤量表达提供新思路，并为工程破岩设备参数调整提供参考。

Abstract

To investigate the fracture propagation patterns in rock masses subjected to high-voltage electric pulse and hydraulic fracturing

based on fluid mechanics

fracture mechanics

and damage mechanics

this study employed the phase field method and numerical software to investigate the evolution characteristics of initial fractures in rock masses under the combined effects of water pressure and high-voltage electric pulses. Additionally

the increase in fracture length and the damage conditions of the rock mass were described. The results showed that voltage

water pressure

in-situ stress

water injection rate

and energy release rate all exerted certain effects on the fracture length and damage of the rock mass. Specifically

as water pressure and voltage increased

the extent of damage-induced fracturing in the rock mass intensified. When the in-situ stress decreased from 8 MPa to 6 MPa

the initial fracture growth length increased by 30%

and the damaged area of the rock mass increased by 10%. Moreover

the greater the in-situ stress difference

the more the fractures deviated toward the direction of the maximum principal stress. The influence of water pressure

voltage

and in-situ stress on the initial fracture growth and damaged area of the rock mass was ranked as follows: in-situ stress

voltage

water pressure. Furthermore

the study found that with the increase of water injection rate and energy release rate

both the growth of initial fractures and the damaged area of the rock mass showed an increasing trend. When the water injection rate was elevated to

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21.25133324

4.14866638

multiple short fractures emerged in proximity to the borehole

and the initial fracture growth was significantly higher than that at

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21.25133324

4.14866638

. When the energy release rate was elevated to

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12.10733318

3.30200005

the initial fractures and new fractures in the rock mass increased significantly

and the damage around the borehole was noticeably aggravated. The research findings can provide novel insights for characterizing fracture growth and rock mass damage in rock masses subjected to high-voltage electric pulse and hydraulic fracturing

and offer a valuable reference for adjusting the parameters of engineering rock-breaking equipment.

关键词

Keywords

references

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