Reinforced Slope with Micropiles Based on Centrifugal Simulation Test

The micropile consists of a multi-row pile frame construction with a single pile diameter of less than 300 mm. In comparison to traditional grouted-pile structures, the micropile has a lot of great properties, such as ease of construction, safety and dependability, environmental friendliness, broad applicability, and so on. As a result, micropiles have been widely employed in the field of slope reinforcement management, which seeks to give model support for physical testing as well as additional research into the structure's effect on slope stability. In this study, an engineering example is placed in a 100 g test environment to build a slope model based on similar concepts, and the structure is utilized to evaluate slope reinforcement using a large geotechnical centrifuge. Through the analysis of the centrifugal simulation test results, the following tasks were accomplished: verifying the effect of the micropile structure in strengthening the slope, analyzing the force state of the micro-pile-soil composite structure of the pile group anti-slide structure, and carrying out related theoretical derivation. Meanwhile, numerical modeling allows us to give a more appropriate layout of micropile groups.