摘要
黄土地区高速公路的桥头跳车问题是一个重要难题,严重影响行车安全。以山西省某高速公路路桥过渡段为例,介绍了一种变桩间距高压旋喷桩联合土工格栅加固桥头黄土路基的工程技术,分析了工程技术的效果,变桩间距和土工格栅对沉降的影响。结果表明:该工程技术可以克服桥头跳车的问题;沉降随着桩间距的增大而增大;土工格栅具有减小差异沉降的作用。
Taking the transition section of a highway and bridge in Shanxi Province as an example, this paper introduced the engineering technology of reinforcing loess subgrade at bridgehead for a kind of variable pile spacing high pressure jet grouting pile combined with geogrid. It also analyzed the effect of engineering technology,the influence of variable pile spacing and geogrid on settlement.
作者
张培泽
ZHANG Pei-ze(Taiyuan Branch of Shanxi Provincial Highway Bureau, Taiyuan, Shanxi 030012, China)
出处
《山西交通科技》
2018年第1期14-17,共4页
Shanxi Science & Technology of Transportation
关键词
变桩间距
土工格栅
桥头跳车
沉降
variable pile spacing
geogrid
bridgehead bumping
settlement
