CAJ | 학술논문

南水北调中线干线总干渠磁县段工程部分渠段地基土以砂土为主，饱和砂土具轻微-中等震动液化，不满足设计要求。为保证南水北调中线总干渠安全运行，采用夯扩挤密碎石桩对典型渠段进行试桩试验，并通过标准贯入试验、跨孔剪切波速试验及桩间土室内试验等多种检测方法对比分析了夯扩挤密桩等桩径不同桩间距下的液化地基处理效果，最终确定了夯扩挤密碎石桩桩径、桩间距及对应施工参数，为同类工程提供参考。
남수북조중선간선총간거자현단공정부분거단지기토이사토위주，포화사토구경미-중등진동액화，불만족설계요구。위보증남수북조중선총간거안전운행，채용항확제밀쇄석장대전형거단진행시장시험，병통과표준관입시험、과공전절파속시험급장간토실내시험등다충검측방법대비분석료항확제밀장등장경불동장간거하적액화지기처리효과，최종학정료항확제밀쇄석장장경、장간거급대응시공삼수，위동류공정제공삼고。
Soilofpart ofthechannelinCixiancountysectionofmaintrunkcanaloftheMiddleRouteProjectoftheSouth-to-NorthWaterDiver-sion is sandy soil, as saturated sand with mild-moderate shake liquefaction, which can not meet the design requirements. In order to ensure the project's safe operation,the test pile is carried out by the ram-compaction gravel piles on the typical canals.Through the standard penetration test,cross-holeshearwavevelocitytestandindoortestofsoilbetweenpilesandotherdetectionmethods,thecomparisonandanalysisoftheliq-uefied foundation treatment effects in various ram-compaction pile diameters has made to determine the dynamic compaction gravel pile diame-ter, pile spacing and the corresponding construction parameters to provide a reference for similar engineering.