Device and method for testing soil-water characteristic curve of sandy soil

• Main Authors: ZHI XILAN, HOU ZHONGJIE, KONG LINGKUN, MA PIAO, MAO XUESONG
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2010
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a device and a method for testing a soil-water characteristic curve of sandy soil. The testing device comprises a cylinder soil column test die, a water supplementing system, awater sensor, a water acquiring system and a data analyzing and processing system, wherein the water supplementing system carries out uniform water supplementation by simulating underground water andcan maintain the water supplementing level; the water sensor detects the water in a soil sample of the sandy soil to be tested in real time; the water acquiring system is connected with the water sensor; and the data analyzing and processing system makes the soil-water characteristic curve according to an analyzing result of the water acquiring system through internal processing operation. The testing method comprises the following steps: 1 preparing the soil sample of the sandy soil; 2 charging in a die; 3 supplementing water, detecting the water content in the soil column of the sandy soilin fixed time and transmitt