Similar material for loose granular stratum and preparation method of similar material

• Main Authors: LU SHUWEN, YANG XINGRUI, LI ZHIHONG, LAI JINXING, ZAN WENBO, WANG DONGMING, QIN YIWEN, DENG XINLIANG, MI XIANGBO, FENG ZHIHUA
• Format: Patent
• Language: Chinese; English
• Published: 13.05.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a similar material for a loose granular stratum and a preparation method thereof, the similar material is composed of quartz sand of 2-4 meshes, quartz sand of 10-20 meshes, quartz sand of 20-40 meshes, barite powder of 150 meshes and barite powder of 600 meshes in different contents, and three types of loose granular similar materials of suspension dense type, skeleton dense type and skeleton void type are formed. The similar material for the loose granular strata has the advantages of high similarity, simplicity in preparation, high adjustability, low manufacturing and using cost, reusability and the like, and can be used for foundation pit and tunnel excavation damage tests, strata stress and deformation research tests and rainfall and penetration tests in the strata; simulation of characteristics of discontinuity, discreteness, high permeability, weak cementation and the like of the stratum structure is realized. 本发明公开了一种松散颗粒体地层的相似材料及其制备方法，该相似材料是由不同含量的2～4目石英砂、10～20目石英砂、20～40目石英砂、15