Soil property test device

US9453829B2 · kind B2 · utility

Assignee

• Shijiazhuang Tiedao University · CN

Inventors

• Huaiping Feng · Laishui, CN
• Jianmei Chang · Laishui, CN
• Tielin Li · Shijiazhuang, CN
• Yanjie Lin · Shijiazhuang, CN
• Chaoliang Ye · Laishui, CN
• Tianliang Wang · Nanhu, CN
• Zhipeng Wang · Beijing, CN
• Yafei Liu · Longbeilingcun, CN

Key dates

• Filing date: Dec 22, 2014
• Grant date: Sep 27, 2016
• Expiry date: Dec 22, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/246
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A test device including a closeable cavity and a water flow groove with a water transmission channel existing between the water flow groove and the internal part of the cavity. The water flow groove includes a water inlet and a water outlet with the depth of the water inlet being greater than the depth of the water outlet. Simultaneously, side lead-in pipe of drain pipe and elbow pipe on side wall of water inlet pipe are consistent with height of top surface of the ceramic plate, making hydraulic pressure of tested soil sample being zero during dehydrating and soaking process capable of ensuring accuracy of test result. A necking design is applied to reduce water evaporation in the drainage pipe and lower the test errors. Side lead-in pipe is connected with drainage pipe for smoothly draining water and also can prevent air reversely flowing and entering into the base.