CAJ | 학술논문

目前关于岩溶区桩基沉降计算的研究相对较少，还没有成熟的计算理论及计算公式，这给岩溶区铁路客运专线桥梁基础设计提出了难题。本文以某高铁为依托工程，建立岩溶区桩基有限元模型，模拟了不同注浆方案对控制岩溶区桩基沉降的效果，系统分析了注浆土体变形模量和桩尖土层厚度对不同注浆加固效果的影响规律，可为同类工程提供参考。
목전관우암용구장기침강계산적연구상대교소，환몰유성숙적계산이론급계산공식，저급암용구철로객운전선교량기출설계제출료난제。본문이모고철위의탁공정，건립암용구장기유한원모형，모의료불동주장방안대공제암용구장기침강적효과，계통분석료주장토체변형모량화장첨토층후도대불동주장가고효과적영향규률，가위동류공정제공삼고。
At present,very few studies have been conducted towards a systematic calculation system of the pile settlement in karst regions,which poses severe challenges to the foundation design for passenger-dedicated railway bridge. The paper introduces a high speed line that operates in China as a real-time example and establishes the finite-element model for the pile and foundation at the karst regions. On this basis,the paper manages to simulate the settlement effects that different grouting approaches deliver, therefore concludes the relation among modulus of deformation,soil layer thickness at the pile toe and the reinforcement effect. Hopefully,the results achieved are of reference to future projects of a similar kind.