Experimental Investigations on Sand Bed Reinforced with Sustainable Polypropylene and Natural Materials
摘要
As the population is supplementing day by day, the construction of engineering structures on week soils is inevitable. One of the effective options for improving the bearing capacity of these soils is to introduce reinforcement into the ground at an ideal depth. This study discusses the effects of several types of reinforcing material on the load-carrying capability of the footing. After completing laboratory plate load tests at various points below the base of the foundation, the performance of sand bed reinforced with commercial geotextiles (both woven and non-woven), polypropylene cement bags, and jute sheets coated with bitumen is compared to that of unreinforced sand bed. To imitate real-world conditions, 70% relative density was maintained throughout the test runs. For these reinforcing materials, the bearing capacity improvement factor (If) was determined. When polypropylene cement bag, non-woven geotextile, jute geotextile coated with bitumen, and woven geotextile were employed as reinforcing materials, the Bearing capacity improvement factor (If) values were determined to be 1.73, 1.80, 2.50, and 2.80, respectively. In addition, PRS values (% decrease in settlement) were calculated. When a jute sheet coated with bitumen was employed as a reinforcing material, the surface heave was decreased by 82%.