河海大学学报（自然科学版）2025，Vol.53Issue(5)：136-146,11.DOI:10.3876/j.issn.1000-1980.2025.05.016
多功能透明土模型试验系统研制与应用
Development and application of multifunctional transparent soil model test system
摘要
Abstract
To address the core challenge of the invisible and intangible failure mechanisms in geotechnical and underground engineering disasters,a highly automated,integrated,and visual multifunctional transparent soil model test system was independently developed.This system integrated the functions of automated mixing and vacuum-saturated preloading for preparing transparent soil materials,high-precision image acquisition and testing using laser imaging and CCD technology,and multi-functional modular testing.Based on this system,a series of model tests was conducted,including single pile penetration,strip footing loading,slope loading,and excavation of a super-shallowly buried large cross-section tunnel.The test results clearly reveal the following key patterns:the pattern of soil disturbance around the pile and at the pile tip during pile driving,which is dominated by soil properties;the pattern of internal soil displacement distribution at different burial depths under strip foundation loading;the pattern of sliding surface evolution throughout the slope failure process,and the characteristics of settlement concentration zone development and disturbance zone expansion caused by tunnel excavation.This test system possesses significant advantages,including being non-intrusive,non-intervening.It enables full-section and full-process observation and offers visualization and digital capabilities.The system provides a novel technical approach for revealing the failure mechanisms and developing prevention and control strategies for geotechnical and underground engineering disasters such as landslides,debris flows,tunnel collapses,and ground subsidence.关键词
模型试验系统/透明土/土工试验/岩土灾变破坏机理/结构-土相互作用Key words
model test system/transparent soil/geotechnical test/failure mechanism of geotechnical engineering disaster/soil and structure interaction分类
建筑与水利引用本文复制引用
刘汉龙,周航,陈荣淋,亓戈平..多功能透明土模型试验系统研制与应用[J].河海大学学报（自然科学版）,2025,53(5):136-146,11.基金项目
国家重大科研仪器研制项目(52027812) （52027812）
