Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting

المؤلفون المشاركون

Ye, Zhouyuan
Pan, Kun
Zhou, Zhihua

المصدر

Geofluids

العدد

المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-8، 8ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2020-12-22

دولة النشر

مصر

عدد الصفحات

8

التخصصات الرئيسية

الفيزياء

الملخص EN

To study the influence of blasting vibration on the broken rock zone around a seepage roadway and provide guidance for design of the roadway support, the broken rock zones around rock of seepage roadways under production blasting vibration are determined by onsite tests in a mining area, Daye iron mine.

During the testing process, it is found that blasting vibration causes internal cracks of surrounding rocks to initiate and develop, the fracture density increases, the acoustic wave velocity of rock mass decreases, and the broken rock zones expand.

At the same time, through onsite observation, it is found that blasting vibration results in crack development and formation of a water pathway to lead to surface water into the ground.

The mechanical response around rock of the seepage roadway under blasting vibration is simulated by the two-dimensional realistic fracture progress analysis calculation software (RFPA2D).

It is found that internal cracks of roadway surrounding rock initiate, propagate, and join up gradually, and the fracture range is expanding under the seepage water pressure, ground stress, and cyclic loads, and the broken rock zones also expand.

The results from numerical simulation are consistent with the results of onsite tests.

It is also found that the tensile stress appears around some cracks, leading to part of the cracks more likely to generate shear failure under the seepage water pressure during simulation.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Ye, Zhouyuan& Pan, Kun& Zhou, Zhihua. 2020. Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting. Geofluids،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1166407

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Ye, Zhouyuan…[et al.]. Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting. Geofluids No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1166407

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Ye, Zhouyuan& Pan, Kun& Zhou, Zhihua. Onsite Tests and Numerical Simulation of Broken Rock Zones in Surrounding Rocks of Seepage Roadways under Blasting. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1166407

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1166407