膨胀土堑坡预压力锚固框架护坡

【摘要】 本文以阳安线勉西地区膨胀上为主要对象，通过室内试验，研究了膨胀土堑坡表层土体的胀缩特性。根据溜坍破坏形成的力学机理和土层锚杆的作用原理，分析研究了框架梁与堑坡上体的相互作用特点，建立了理想的力学模型和基本的数学模型，提出了设计预压力锚杆框架所需主要设计参数的确定方法。更多还原

【Abstract】 In this paper, the swelling-shriniking characteristics of surface soil in cut of spelling clay are studied in the laboratory on the basis of the MIAN-XI region spelling clay of YANG-AN line. According to the mechanic mechamism of the slipingcolapsing failure and actional principle of earth anchor. behavior of action between frame-beam and soil body of the cut is analyzed, Furthermore, the ideal mechanic-model and basic mathematic model are builted and the method of main design parmeters of pre-pressured anchor frame is proposed.更多还原