Method for testing tensile strength of rock at random schistosity angle through single rock sample

• Main Authors: XIA JUN, LIU JIE, YAN LIZHOU, YU ZHENMIN, LI JIANLIN, YUAN TENGFEI, TANG LIANG
• Format: Patent
• Language: English
• Published: 04.03.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a method for testing tensile strength of a rock at a random schistosity angle through a single rock sample. The method comprises the following steps: 1. preparing a to-be-tested rock sample, wherein the schistosity direction of the rock sample can be parallel to the axial direction of the rock sample; 2. selecting a schistosity included angle between the rock sample and rock sample schistosity, carrying out splitting test for the first time along the direction of the rock sample schistosity; 3. cementing the split rock sample; 4. exchanging a non-cement position, selecting different included angles between the rock sample and the rock sample schistosity again, and carrying out splitting test for the second time; and 5. cementing the split rock sample, and repeating the steps 4 and 5, thus obtaining the maximal loading force when any required rock sample with an included angle with the rock sample schistosity is split and destroyed. According to the method for testing the tensile strength of the rock at the random schistosity angle through the single rock sample disclosed by the invention, the tensile strength of the required rock with the random schistosity angle can be obtained by carrying out splitting test on one rock sample or a small number of rock samples; the quantity of rock sample specimens is greatly reduced; and the errors in test results caused by discrete rock samples are reduced.