To investigate the influence of prefabricated fissure size on the directional propagation law
of rock type-I cracks, a simple device for simulating rock crack directional propagation was …

The development of a fracture process zone (FPZ)(microcrack zone) ahead of a fracture tip
is a prominent fracture characteristic of rock-like materials. At present, understanding of the …

Fracturing in quasi-brittle such as rock involves the development of an inelastic zone around
the pre-crack tip, also known as the fracture process zone (FPZ). The evolution of FPZ, while …

Correctly distinguishing microseismic and blasting events in underground excavations is
fundamental to subsequent geophysical analysis activities such as rock burst early warning …

The complex response of rocks to high temperatures and mixed stress poses a significant
challenge in deep rock engineering. Sandstone samples with varying notch offsets were …

Identifying the real fracture of rock hidden in acoustic emission (AE) source clusters (AE-
depicted microcrack zone) remains challenging and crucial. Here we revealed the AE …

This study experimentally investigates the influence of heating/cooling cycles on the
mechanical properties and cracking features of Rucheng granite. The specimens, which …

In this paper, an analytical method was introduced to investigate the size effect on the
unstable fracture toughness of fine-grained quartz-diorite. The analytical method can predict …

The nonlinear development zone in front of the rock fracture tip, called fracture process zone
(FPZ), could affect the propagation of fracture. Understanding the effect of fracture growth …

Understanding rock mechanical behaviors after thermal shock is critically important for
practical engineering application. In this context, physico-mechanical properties of Beishan …