Shandong University

Zhe Qin

Weiwei Liu

Qiang Feng

Shuang Zhang

Tingchun Li

Zedong Yang

Jichao Jin

An experimentation method for a type I stress intensity factor test considering frost heaving force periodic changes, steps being 1: preparing a specimen, waterjet cutting on the specimen to simulate a non-penetrating rock mass fracture; step 2: vacuum saturating the specimen; step 3: affixing a strain gauge in a non-elastic area at a tip of the specimen; step 4: placing the specimen into a rock mass () fracture frost heaving experiment box (), pressurizing by a pressurizing apparatus () balloons on either side of the frost heaving experiment box (), shutting a valve and removing a pipe, placing the frost heaving experiment box () holding the specimen into a water tank, allowing water to immerse the specimen; and step 5: placing the water tank and the frost heaving experiment box () holding the specimen together into a high-low temperature alternating experiment box () to start a freeze-thaw cycle experiment.

Growing community of inventors

Shandong, China

Zhe Qin