Water-soil coupling test device for soft rock and sand combined farmland building

• Main Authors: CHENG SHENGQUAN, LIU YANSUI, WANG SHUGUANG
• Format: Patent
• Language: English
• Published: 29.07.2015
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FISHING; FORESTRY; HORTICULTURE; HUMAN NECESSITIES; HUNTING; TRAPPING; WATERING

The invention relates to a water-soil coupling test device for soft rock and sand combined farmland building. The device comprises first to eight test areas and an auxiliary device; the test areas are 15*12m in size and built through brick walls of which the top parts are aligned to the ground; an isolation zone being 1m in width or a biological protection zone being 2m in width is arranged between every two test areas; the first test area is the local original sandy soil; the second to eight test areas are divided into three test sub-areas, sandy soil fills in the bottom layer based on the thickness of 30cm, and soft rock and sand combined soil respectively fill in the surface layer according to the thickness of 30cm; the ratio of the soft rock to the sand in the soft rock and sand combined soil is 1: 1, 1: 2 and 1: 5; the first and second test areas are free of crops; potatoes are planted in the third, fifth and seven test areas; maize is planted in the fourth, sixth and eight test areas. According to the device, the complete test land prepared under a natural environment condition and corresponding auxiliary devices are adopted, so that the test result closest to the truth can be obtained.