井字形角钢加自钻式锚杆在路基病害治理中的应用

分析引起既有铁路(鹰厦铁路K340+340段)路堑浆砌片石护墙开裂、变形等病害的原因;采用井字形角钢+自钻式锚杆结合承压板预应力锚索措施,对既有铁路路堑护墙开裂、变形等病害进行有效加固和整治;阐述井字形角钢+自钻式锚杆的结构形式、特点.结果表明,病害整治竣工近两年,路堑边坡及其支挡结构稳定,综合治理效果显著.

Application of #-Shaped Angle Steel and Self-drilling Anchor Bolt in Subgrade Diseases Control

The causes of the cracks and deformation of mortar rubble cutting parapet for the existing railway （the K340 ＋ 340 Section of Yingtan-Xiamen Railway） were analyzed; then #-shaped angle steel ＋ self-drilling anchor bolt combined with bearing plate ＋ prestressed anchor cable were used as the reinforcement and control measures,wherein the structural form and features of #-shaped angle steel ＋ self-drilling anchor bolt were elaborated.The result shows that,during almost the two years after the disease control,the cutting slope and the retaining structures are stable,demonstrating significant control effect.