대구경 보강토 진공압밀 시료 일축압축 강도 측정

영신컨설턴트 (02) 529 8803 ystcha@naver.com 2021 4

 

 

도로 설계 시 자갈과 보강토 시험은 대구경의 시료가 필요하고 대구경 삼축셀이 필요하다.

 

대구경 셀은 고가여서 삼축셀 없이 진공압력을 가하여 강도를 평가할 수 있고 수평변형을 정확이 위치별로 측정할 수 있다.

시료 직경 50cm 높이 100cm, 진공압력 –75kPa, membrane 두께 4mm

5 radial belt 100mm 200mm 선택

 

유효 구속압력 = 대기압 – 진공압력

 

불포화토 matric suction = 시료 속 공기압력 – 간극수압

 

Vacuum Controlled Specimen 구속압 없이 진공압력 - 75kPa

 

 

The estimation of strength and stiffness of reinforced aggregates is very important for the design and construction of reinforced unpaved/paved road sections, granular subbase samples reinforced with multiple layers of geogrid reinforcement. Aggregates of different size ranges were mixed in calculated proportions by weight to obtain the gradation specified for rural roads.

 

 

Triaxial samples of 300 mm diameter and 600 mm height were prepared using this sampled aggregate.

 

Data Logger:

 

Enterprise level Dynamic Control System (ELDCS),

16 bit 4 channel data logger (expandable to 12 channels)

 

Single (4 channels and dynamic axial axis control),

dual (8 channels with dynamic axial and radial control),

triple (12 channels and dynamic axial, radial and back pressure control)

 

Control Frequency up to 500 points per second

 

Data Acquisition up to 500 points per cycle

 

DIN plug connection type for transducers

 

 

Transducers:

 

Load cell: External load cell

(removable and can be replaced by other ranges 5, 10, 16, 32, 64, 128, 250, 400 or 500kN are all optionally available) Load cell accuracy: Better than 0.25% FRO

 

Total Axial Displacement: 100mm.

 

Temperature control sensor: 0-100°C

 

 

 

LoadFrame

 

GDS LAUNCH NEW 128KN &256KN STATIC LOAD FRAMES