29 Result(s)

Article

Rockburst characteristics and numerical simulation based on a new energy index: a case study of a tunnel at 2,500 m depth

Rockburst is one of the most difficult problems encountered in the pilot tunnels of the **** II hydropower station, where the rock cover is up to 2,500 m. Some typical characteristics of the rockburst event...

Quan Jiang, **a-Ting Feng, Tian-Bing **ang… in Bulletin of Engineering Geology and the En… (2010)

Article

Rockmass damage development following two extremely intense rockbursts in deep tunnels at **** II hydropower station, southwestern China

Two extremely intense rockbursts took place during the excavation of the drainage tunnel and headrace tunnel No. 4 at the **** II hydropower station in southwestern China. The geological conditions, damage,...

Chuanqing Zhang, **a-Ting Feng, Hui Zhou… in Bulletin of Engineering Geology and the En… (2013)

Article

An experimental study on the shear strength behaviour of an interlayered shear weakness zone

In order to evaluate the overall stability of the underground powerhouse at the proposed Baihetan hydropower station in China, the shear behaviour of a weak interlayered soil in the host rock and the soil/host...

Ding-** Xu, **a-Ting Feng, Yu-Jun Cui in Bulletin of Engineering Geology and the En… (2013)

Article

Time-dependent damage constitutive model for the marble in the **** II hydropower station in China

To accurately describe the damage creep properties of marble, especially during the acceleration creep phase, creep testing was performed on the marble in the **** II hydropower station in China. Based on ...

Bing-Rui Chen, **ao-Jun Zhao, **a-Ting Feng… in Bulletin of Engineering Geology and the En… (2014)

Article

Microseismic monitoring of columnar jointed basalt fracture activity: a trial at the Baihetan Hydropower Station, China

Severe stress release has occurred to the surrounding rocks of the typically columnar jointed basalt after excavation at the Baihetan Hydropower Station, **sha River, China, where cracking, collapse, and othe...

Bing-Rui Chen, Qing-Peng Li, **a-Ting Feng, Ya-Xun **ao… in Journal of Seismology (2014)

Chapter

ISRM Suggested Method for Measuring Rock Mass Displacement Using a Sliding Micrometer

S. J. Li, **a-Ting Feng, J. A. Hudson in The ISRM Suggested Methods for Rock Charac… (2015)

Chapter

ISRM Suggested Method for Rock Fractures Observations Using a Borehole Digital Optical Televiewer

S. J. Li, **a-Ting Feng, C. Y. Wang… in The ISRM Suggested Methods for Rock Charac… (2015)

Chapter

ISRM Suggested Method for Reporting Rock Laboratory Test Data in Electronic Format

Hong Zheng, **a-Ting Feng, Zuyu Chen… in The ISRM Suggested Methods for Rock Charac… (2015)

Article

In situ failure investigation and time-dependent damage test for columnar jointed basalt at the Baihetan left dam foundation

Columnar jointed basalt (CJB), characterized by a hexagonal joint network, poses a great challenge for geotechnical designs due to its time-dependent propensity to deformation and damage. In this paper, the ge...

Quan Jiang, Bin Wang, **a-Ting Feng… in Bulletin of Engineering Geology and the En… (2019)

Article

Stability analysis of deep-buried hard rock underground laboratories based on stereophotogrammetry and discontinuity identification

In a tunnel, instabilities in the surrounding rock mostly occur within the sidewalls and crown. After acquiring the rock mass structure, a combination of laboratory experiments, numerical simulations, and in s...

**g-Zhu Huang, **a-Ting Feng, Yang-Yi Zhou… in Bulletin of Engineering Geology and the En… (2019)

Article

Effects of structural planes on rockburst position with respect to tunnel cross-sections: a case study involving a railway tunnel in China

Uncertainty in the locations where rockbursts may occur with respect to a tunnel cross-section greatly increases the difficulty in monitoring and providing warnings of rockbursts and mitigating their effects. ...

Lei Hu, **a-Ting Feng, Ya-Xun **ao, Rui Wang… in Bulletin of Engineering Geology and the En… (2020)

Article

Generalized crack damage stress thresholds of hard rocks under true triaxial compression

The rock failure process can be characterized by several distinct stress thresholds: the crack closure stress σ_cc, crack initiation stress σ_ci, crack damage stress σ_cd and peak stress σ_p. Seventy-one true triaxia...

Yaohui Gao, **a-Ting Feng, **wei Zhang, Yangyi Zhou, Yan Zhang in Acta Geotechnica (2020)

Article

Strength and failure characteristics of jointed marble under true triaxial compression

The rock structure and three-dimensional stress state play a vital role in the mechanical behaviour of rock masses. Here, a series of true triaxial compression tests (σ₁ > σ₂ > σ₃) are conducted on jointed marble...

Yaohui Gao, **a-Ting Feng, Zhaofeng Wang… in Bulletin of Engineering Geology and the En… (2020)

Article

Effect of initial damage on remotely triggered rockburst in granite: an experimental study

A remotely triggered rockburst is a typical engineering geology disaster that occurs during the excavation of hard rock at depth. Damage in the rock mass naturally exists and will also be induced by the constr...

Jianqing Jiang, Guoshao Su, **aohe Zhang… in Bulletin of Engineering Geology and the En… (2020)

Article

A rockburst intensity criterion based on the Geological Strength Index, experiences learned from a deep tunnel

The occurrence of rockburst is related to the surrounding rock stress and geological rock mass strength. Rockburst occurs frequently during the construction at a deep tunnel in southwest China (a tunnel with a...

Wei Zhang, **a-Ting Feng, Ya-Xun **ao… in Bulletin of Engineering Geology and the En… (2020)

Chapter and Conference Paper

Development of Cellular Automata Software for Engineering Rockmass Fracturing Processes

This paper presents the development of self-developed cellular automata software for engineering rockmass fracturing processes (CASRock). CASRock is a combination of cellular automaton, rock mechanics, enginee...

**a-Ting Feng, Peng-Zhi Pan, Zhaofeng Wang… in Challenges and Innovations in Geomechanics (2021)

Article

Identification of potential high-stress hazards in deep-buried hard rock tunnel based on microseismic information: a case study

Rockbursts, stress-induced collapse, and spalling often occur in the excavation process of deep-buried hard rock tunnel, which affect the stability thereof. The early identification of these potential high-str...

Wen-**g Niu, **a-Ting Feng, Ya-xun **ao… in Bulletin of Engineering Geology and the En… (2021)

Article

Modelling three-dimensional stress-dependent failure of hard rocks

Hard rocks exhibit three-dimensional (3D) stress-dependent failure under true triaxial compression. The deformability and strength of hard rocks under true triaxial compression differ from those under traditio...

**a-Ting Feng, Zhaofeng Wang, Yangyi Zhou, Chengxiang Yang… in Acta Geotechnica (2021)

Article

Influences of foliation orientation and lateral stress difference on the deformation and fracturing of a thin-layered rock around underground excavations: insight from multi-axial loading tests

Layered rocks usually show anisotropy in their deformation and failure characteristics. The anisotropy is mainly caused by the orientation of thin-layered structure (e.g., bedding or foliation). Thin-layered s...

Xufeng Liu, **a-Ting Feng, Yangyi Zhou… in Bulletin of Engineering Geology and the En… (2022)

Article

Investigation of the effect of initial structure and loading condition on the deformation, strength, and failure characteristics of continental shale

The study of the mechanical characteristics of lamellar continental shale is of great theoretical and application value for unconventional shale oil production. In this study, four cuboid continental shale spe...

Yongting Duan, **a-Ting Feng, **ao Li… in Geomechanics and Geophysics for Geo-Energy… (2022)