Subgrade filler permeameter, subgrade filler sample making method and test method

• Main Authors: XI NING, ZHAO YAPIN, DONG LANTING, WU JIE, JIAO YANLONG, CAO XIAOJUAN, WANG CHUANHUAN, MA JIE, TANG WENJUN, ZHANG JINWEI, CHEN ZELIAN, QIAO YURONG, LIU QICHEN
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a subgrade filler permeameter. The permeameter is a constant head permeameter, comprises a water supply bottle and a permeation container, and also comprises three cylindricalsample making pressure heads with different lengths. Accordingly, the invention also provides a subgrade filler sample making method and a test method. According to the invention, the permeation container and sample making pressure heads with different lengths are utilized for cooperative use to make multiple layers of samples meeting the needs according to the design, thus solving the problems that direct sampling cannot be achieved on the scene in subgrade filler test, sampling does not meet the design and specification requirements and the like. In addition, the permeameter integrates sample making and testing, can realize permeation test without taking out the samples, solves the risk of disturbance caused by removal of the samples, simulates the compaction degree of construction, andcan make the samples maxim