膨胀岩试验设备改进与评价研究-《高速铁路技术》

文章信息/Info

Author(s):: WU Huidong; China Railway Design Corporation, Tianjin 300251, China

Keywords:: swelling rock|test piece|test equipment|expansion rate|expansion pressure|metal ferrule

摘要:: 本文结合膨胀岩的判别和评价需求，介绍了一种改进的膨胀岩测试试验设备，并将改进后的膨胀岩测试设备与试验标准、规程推荐的膨胀岩测试设备进行对比，结果表明：与现行试验标准、规程推荐的膨胀岩试验设备相比，改进后的多功能岩石膨胀试验仪具有一台仪器可同时完成3项膨胀性试验项目、扩大试件直径适用范围、减少试件二次加工环节等优点，提高了岩石膨胀性试验的测试精度、稳定性和可靠性，减少了设备的成本投入和占用空间。研究成果可为岩石膨胀性试验和仪器制造提供参考和借鉴。

Abstract:: This paper introduces improved swelling rock test equipment according to the needs of distinguishing and evaluating swelling rock, and compares the improved swelling rock test equipment with the swelling rock test equipment recommended by test standards and regulations. The results show that compared with the swelling rock test equipment recommended by current test standards and regulations, the improved multifunctional rock expansibility tester has the following advantages: one tester can complete 3 expansibility test items at the same time; the applicable scope of specimen diameter is expanded; and the link of secondary processing of specimen is reduced, etc., which improve the test accuracy, stability and reliability of rock expansibility test, and reduce the cost input and space occupation of equipment. The study results can provide reference for rock expansibility test and instrument manufacturing.