朔黄重载铁路路基斜向高压旋喷桩加固效果

Reinforcement Effect of Inclined High pressure Jet Grouting Piles for Shuohuang Heavy Haul Railway

摘要:

结合朔黄重载铁路路基加固前后检测试验数据和斜向高压旋喷桩的加固机理，对斜向高压旋喷桩技术加强既有线路基的综合效果进行了探索研究.研究表明，斜向高压旋喷桩能显著提高路基的强度、刚度、承载力及路基45°扩散线以内土体的密实度，是一种快速有效的既有线路基加固技术.

Abstract:

Based on the field test data of Shuo Huang heavy haul railway subgrade and the reinforcement mechanism of inclined high pressure jet grouting piles (IHJGP), a study was made of the comprehensive reinforcement effects of this technology. Studies show that the strength, the stiffness, the bearing capacity and the soil compactness of the subgrade reinforced by IHJGP improves significantly, which proves that IHJGP is an effective reinforcement technology for the existing railway embankment.