摘要
为了提高拓宽路基加筋处置技术效果,文章通过室内模拟试验,对拓宽后格栅的设置情况下路基变形后的内部应力规律进行对比分析,并对土工格栅设置层数及层位的合理性提出建议。研究结论如下:①相比无格栅,设置格栅对避免拼宽差异沉降具有一定的效果;②新老路基差异沉降会造成土拱效应,主要集中于新老拼接底部位置处;③路基拼宽加筋技术的效果很大程度上取决于铺设层位的选定。
In order to improve the reinforcement treatment technology effect of the widened subgrade,the paper compares and analyzes the internal stress law of the subgrade after deformation under the condition of the widened grille,and puts forward suggestions on the reasonableness of the number of layers and the level of the gegrid.The results are as follows:①Compared with no grating,grating has a certain effect on avoiding differential settlement of patching-width;②The difference settlement of the new and old subgrade will cause the soil arch effect,which is mainly concentrated at the bottom of the new and old splicing.③The effect of roadbed widening reinforcement technology largely depends on the selection of laying level.
作者
魏晋
田鹏江
Wei Jin;Tian Pengjiang(Shanghai Municipal Engineering Design and Research Institute Group No.10 Municipal Design Institute Co.,Ltd.,Lanzhou,China)
出处
《科学技术创新》
2023年第15期134-137,共4页
Scientific and Technological Innovation
关键词
拓宽
加筋路基
模型试验
应用效果
broaden
reinforced roadbed
model test
application effect
