第七届全国岩土工程实录交流会特邀报告——黄土高填方关键技术问题与工程实践
摘要:黄土丘陵沟壑区高填方工程的地形地貌和地质环境复杂,场地内常分布有大面积湿陷性黄土和淤积土,且具有土方量大、影响因素多、施工工期紧、沉降控制要求高等特点,建设过程面临着填方体的稳定、变形、排水、湿化变形控制及边坡防护等问题。以国内几处典型黄土高填方工程为例,介绍了通过场地综合地质条件评价、土方平衡优化、地下盲沟排水、原地基强夯加固处理、填筑体压(夯)实处理、填挖边坡防护处理、施工质量立体式监控、岩土工程全程监测等多种手段有效组合,解决黄土高填方工程问题的实践工作,相关经验可供类似工程借鉴。
Abstract:The main characteristics of deep filled foundation in hilly-gully regions are complicated topographic and geomorphic conditions,complex geological environment,accompanied with large area of collapsible loess and soft alluvial soil,massive earthworks volume,various influencing factors and limited construction period.The problem of stabilization,sedimentation,drainage,slaking distortion-controlling,slope protection and so on is involved in the construction of loess high fill foundation.The practice in dealing with the problem of the deformation and stability of deep cut and deep filled foundation in the hilly-gully regions of loess plateau are introduced by taking typical projects for example.The construction methods consist of comprehensive evaluation of engineering geological conditions,optimizing the excavation-fill balancing,constructing the effective underground water drainage system,reinforcing of the original foundation soil by dynamic compaction,compacting(or dynamic compacting) of the loess filling,effective treatment of the fill slope and the cut slope,controlling the construction with quality inspection by three-dimensional method,and evaluation of the deep filled foundation condition by geotechnical engineering monitoring throughout construction period etc.The key techniques can also be used to similar projects as reference.
中文标题：
第七届全国岩土工程实录交流会特邀报告——黄土高填方关键技术问题与工程实践
Key Technical Issues and Engineering Practices in Project Construction of Loess Deep Filled Foundation
作者：
张炜1,2,张继文1,2,于永堂1,2,3
Zhang Wei1,2,Zhang Jiwen1,2,Yu Yongtang1,2,3
作者简介:张炜,男,1962年生,安徽合肥人,教授级高级工程师,主要从事岩土工程实践与研究工作。E-mail:zhangwei@jk.com.cn
通讯地址：
1. 机械工业勘察设计研究院有限公司, 陕西西安 710043; 2. 陕西省特殊土工程性质与处理技术重点实验室, 陕西西安 710043; 3. 西安建筑科技大学土木工程学院, 陕西西安 710055
1.ChinaJKInstituteofEngineeringInvestigationandDesignCo.,Ltd,Xi'an710043,Shaanxi,China; 2.ShaanxiKeyLaboratoryofEngineeringBehaviorandFoundationTreatmentforSpecialSoil,Xi'an710043,Shaanxi,China; 3.CollegeofCivilEngineering,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,Shaanxi,China
中图分类号:TU411
doi:10.3969/j.issn.1007-2993.2016.01.003
出版物：岩土工程技术
收稿日期:2015-09-15
关键词:黄土,丘陵沟壑区,高填方,变形,稳定
Key words:loess,hilly-gully region,deep filled foundation,deformation,stability
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基金项目：
基金项目: 国家科技支撑计划项目资助(2013BAJ06B00)
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