四川省高速公路弃渣场变更工作的几点认识

高速公路作为线型工程,具有里程长、土石方规模大、弃渣场点多面广的特点,在实际工作过程中容易产生弃渣场变更。变更的主要原因有设计阶段不同和施工过程中各种客观因素的制约。本文从变更的时机选择到获取设计资料、现场调查和沟通协调、选址合理性分析、完善设计和行政审批5个方面详细阐述了弃渣场变更的技术路线。重点研讨了现场调查的内容、方法和选址合理性分析,针对安全影响评价和行洪论证,结合现行国家、行业相关技术规范,提出了定性和半定量的判断标准,供同行共同探讨。

Some Understandings on the Alteration of Abandoned Dreg Field in Sichuan Provincial Motorways

The motorway is a kind of linear project,it has the characteristics of long mileage,large scale of earth and stone,broad area of abandoned dreg fields.And the abandoned dreg fields are easy to change in real work process.The main reasons of alteration are different design stages and the restraint of various objective factors in construction process.The research expound the technical routes of abandoned dreg fields alteration from following five aspects:timing of alteration, getting the design information,field survey and communication,analysis of site selection,complement of design,administrative examination and approval.The research emphasize the contents and methods of field survey and analysis of site selection. Combined with current national and industry technical specifications,the research present some qualitative and semiquantitative criterias aimed at safety impact assessment and demonstration of flood discharge for discussion.