An Electro Breakdown Damage Model for Granite and Simulation of Deep Drilling by High-Voltage Electropulse Boring

المؤلفون المشاركون

Li, Changping
Duan, Longchen
Tan, Songcheng
Chikhotkin, Victor
Wang, Xiaohui

المصدر

Shock and Vibration

العدد

المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2019-11-29

دولة النشر

مصر

عدد الصفحات

12

التخصصات الرئيسية

هندسة مدنية

الملخص EN

Electropulse rock breaking has wide application prospects in hard rock drilling and ore breaking.

At present, there are no suitable physical mathematical models that describe electropulse boring (EPB) processes under confining pressures.

In this paper, a high-voltage electropulse breakdown damage model is established for granite, which includes three submodels.

It considers electric field distortions inside the rock, and an electric field distribution coefficient is introduced in the electro-breakdown model.

A shock-wave model is also constructed and solved.

To simulate the heterogeneity of rocks, EPB rock breaking in deep environments is simulated using the two-dimensional Particle Flow Code (PFC2D) program.

The solved shock wave is loaded into the model, and confining pressure is applied by the particle servo method.

An artificial viscous boundary is used in the numerical simulation model.

Using this approach, a complete numerical simulation of electropulse granite breaking is achieved.

Breakdown strength and the influences of physical and mechanical parameters on it are also obtained.

Time-varying waveforms of electrical parameters are obtained, and the effect of confining pressure on EPB is also described.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Li, Changping& Duan, Longchen& Tan, Songcheng& Chikhotkin, Victor& Wang, Xiaohui. 2019. An Electro Breakdown Damage Model for Granite and Simulation of Deep Drilling by High-Voltage Electropulse Boring. Shock and Vibration،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211488

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Li, Changping…[et al.]. An Electro Breakdown Damage Model for Granite and Simulation of Deep Drilling by High-Voltage Electropulse Boring. Shock and Vibration No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1211488

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Li, Changping& Duan, Longchen& Tan, Songcheng& Chikhotkin, Victor& Wang, Xiaohui. An Electro Breakdown Damage Model for Granite and Simulation of Deep Drilling by High-Voltage Electropulse Boring. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211488

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1211488