Title:
SEALING PRESSING HEAD FOR CONVENTIONAL TRIAXIAL TEST OF CUBOID ROCKS WITH PRE-EXISTING FISSURES, AND TEST METHOD
Document Type and Number:
WIPO Patent Application WO/2019/080441
Kind Code:
A1
Abstract:
A sealing pressing head for a conventional triaxial test of cuboid rocks with pre-existing fissures, and a test method, the sealing pressing head comprising an upper pressing head (14) and a lower pressing head (15); the upper pressing head (14) and the lower pressing head (15) are respectively used for being provided at upper and lower ends of a test sample (10); the upper pressing head (14) comprises a circular portion (2) and a square portion (1) which are provided in sequence from top to bottom; and the lower pressing head (15) comprises a square portion (1), a circular portion (2) and a threaded portion (3) which are provided in sequence from top to bottom. The sealing pressing head for the conventional triaxial test of the cuboid rocks with the pre-existing fissures is combined with a heat shrinkable tube and a steel sheet (12) to achieve the sealing of the cuboid rock test sample (10) with the pre-existing fissures, so as to conduct the subsequent conventional triaxial compression test. Therefore, the sealing problem in a conventional triaxial compression test of the cuboid rocks with the pre-existing fissures is solved. Many experiments prove that the sealing pressing head and said method are simple and easy to operate, and have good sealing effect, successfully realizing conventional triaxial compression of the cuboid rock test sample.
Inventors:
YANG SHENGQI (CN)
TIAN WENLING (CN)
YIN PENGFEI (CN)
LIU XIANGRU (CN)
WEN SEN (CN)
TIAN WENLING (CN)
YIN PENGFEI (CN)
LIU XIANGRU (CN)
WEN SEN (CN)
Application Number:
PCT/CN2018/079590
Publication Date:
May 02, 2019
Filing Date:
March 20, 2018
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
G01N3/02
Foreign References:
| CN107764631A | 2018-03-06 | |||
| CN107741364A | 2018-02-27 | |||
| CN104677815A | 2015-06-03 | |||
| CN106289996A | 2017-01-04 | |||
| CN204831935U | 2015-12-02 | |||
| CN102353853A | 2012-02-15 | |||
| JP3781723B2 | 2006-05-31 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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