Prediction of the rockburst proneness of rock in the field is an important problem in rockburst
research. In this paper, the analytical relationship between the strength ratio (the ratio of the …

The reliable evaluation of rock brittleness is essential in engineering geology for various
applications, such as water conservancy, hydropower, transportation, energy exploration …

To improve the efficiency of tunnel boring machines (TBMs) in hard rock environment, the
technology of pre-grooving-assisted disc cutters for rock breaking was studied. Firstly …

Measuring-while-drilling has been considered as an effective method to determine the
mechanical properties of rock. In this paper, drilling models are improved for predicting the …

Similar to investigations of failure mechanisms using the stress–strain relationship of rock
materials, the energy analysis method, as a branch of the rock failure research methods, has …

In the study, a series of monotonic triaxial compression tests were carried out on Emochi
andesite to evaluate the effects of confining pressure on progressive failure behaviors. The …

Field drilling can be a continuous, fast, and reliable technology to predict the cohesion,
internal friction angle, and unconfined compressive strength (UCS) of rock in petroleum …

Rocks in cold regions are often exposed to extreme temperature change, and different
loading conditions, therefore, will be subjected to deterioration. In this study, the …

The main purpose of this study is to provide a digital drilling-based method for determining
rock elastic modulus and evaluating the anisotropy. By considering a concept of crushed …

It is very important and effective to characterize the failure mechanism of coal and rock
materials from the perspective of energy. Energy dissipation and release are important …