孔内深层强夯技术在湿陷性黄土处治中的研究  

Research on the Application of Deep Dynamic Compaction Technology inside the Hole in the Treatment of Collapsible Loess

作　　者：刘丽普 LIU Li-pu(China Railway 12th Bureau Group First Engineering Co.,Ltd.,Xi'an 710043,China)

机构地区：[1]中铁十二局集团第一工程有限公司,西安710043

出　　处：《价值工程》2024年第32期47-49,共3页Value Engineering

摘　　要：乌玛高速景泰至中川机场JZ7合同段位于黄土与祁连山交错区,湿陷性黄土普遍,威胁路基稳定与安全运营。面对深厚且复杂的黄土层,传统处理方法受限或成本高昂。经研究评估,决定采用新型DDC法处理湿陷性黄土。本文系统地介绍了DDC法的技术原理、独特优势及其在特定地质条件下的适用性,并结合工程现场实际情况,精心设计了路基加固方案。通过试验性施工的实施,验证了DDC法在提升路基稳定性、减少湿陷风险方面的可行性和有效性。The JZ7 contract section of the Wuma Expressway from Jingtai to Zhongchuan Airport is located in the intersection of loess and Qilian Mountains,where collapsible loess is common,posing a threat to the stability and safe operation of the roadbed.Faced with deep and complex loess layers,traditional treatment methods are limited or costly.After research and evaluation,it has been decided to use the new DDC method to treat collapsible loess.This article systematically introduces the technical principles,unique advantages,and applicability of the DDC method under specific geological conditions,and carefully designs a roadbed reinforcement plan based on the actual situation of the engineering site.Through experimental construction,the feasibility and effectiveness of the DDC method in improving roadbed stability and reducing the risk of collapse have been verified.

关 键 词：湿陷性黄土 DDC法 地基加固 高速公路 工程处理 

分 类 号：TU472.3[建筑科学—结构工程]