대구경 시료 삼축압축 시험기

영신컨설턴트 (02) 529 8803 ystcha@naver.com 2020 7

 

도로의 보조기층 자갈이 포함된 시료와 토목섬유는 대구경 삼축압축 시험이 요구된다.

Granular materials used in the construction of pavements normally have a size range of 60–75 mm. Triaxial testing of these aggregates requires large size samples to avoid scale effects.

 

Actuators	Hydraulic 유압
Displacement Range	100mm 연직변위
Load Range (kN)	100, 250, 1500kN 연직하중
Operating Frequency (Hz) 주파수	1500kN – 5Hz, 100kN - up to 20Hz, 250kN (25톤) - up to 20Hz

 

시료입도

 

시료크기와 대구경 시료 삼축시험기

a) 100 kN capacity load frame with cyclic actuator up to 10 Hz frequency.

b) Hydraulic power pack for the load frame

c) Dynamic control system for data acquisition and control

d) 1000 cc/2 MPa advanced pressure and volume controller

e) Pneumatic regulator for cell pressure

f) Triaxial cell maximum working pressure of 1000 kPa for specimens with diameter range of 38-300 mm.

 

 

geogrid 설치 Arrangement of geogrid reinforcement in different tests

 

Deviatoric stress versus axial strain for unreinforced and geogrid reinforced granular subbases

 

Photographs at the end of test for samples reinforced with reinforced samples: (a) four layers of biaxial geogrid; (b) geocell; (c) geocell

 

 

radial strTriaxial sample of 300 mm diameter and 600 mm height with LVDT’s for local axial and radian measurements

 

 

Typical measurements during strain controlled cyclic triaxial test for unreinforced system

 

Variation of dynamic modulus with respect to number of cycles for unreinforced and geogrid reinforced samples

 

Photographs of samples at the end of the test

 

 

고문헌 Large Diameter Triaxial Tests on Geosynthetic-Reinforced Granular Subbases

10.1061/(ASCE)MT.1943-5533.0001088