基于BIM技术的项目前期投资估算指标体系的设立方法探析

随着BIM技术在建筑施工中的大量应用,其在质量管控和成本控制中发挥着显著的功能。在推进城镇化建设过程中,存在着大量项目前期投资估算工作,且这些项目都具有较强的外部性,因此BIM技术还需要在这一方面发挥积极作用。文章对基于BIM技术的项目前期投资估算指标体系的设立方法进行了探析。

政府投资市政项目估算指标体系的研究

通过对市政项目估算指标体系的构建原则、构建方法及偏差处理措施进行研究,建立科学合理的市政工程估算指标体系,并制定指标体系的动态调整机制,使指标体系既能反映正常条件下的投资水平,又能适应市场的变化。市政工程估算指标体系不仅为编制和审批项目建议书、可行性研究报告的估算提供了依据,也可为限额设计提供参考。

电力地下管线搬迁估算指标体系构建研究

在收集整理上海市电力地下管线搬迁工程典型案例及其造价资料的基础上,构建了电力地下管线搬迁工程估算指标体系。阐明了电力地下管线搬迁估算指标体系构建的原则及依据,并结合不同设计技术方案对指标结构进行了划分,从本体工程指标与独立子项指标出发,基于电力地下管线搬迁的费用构成,建立了相对完整规范的估算指标体系,并选取典型工程对指标体系的有效性进行了验证分析。最后根据目前的研究情况,对未来相关工作的开展提出了建议。

A Review and Reflection of Value Account of Forest Resources

The framework of forest valuation accounting has been formed through the development stages of timber value calculation, forest ecosystem valuation and entire value accounting of forest resources, including the forest values of resources in kind, environmental resources and social benefits in China. These theory and methods still face deviation of theories and methods from vague position of discipline, larger accounting results from ignoring differences between forest ecological functions and ecosystem services, and unrealistic and other problems from non-standard index system and accounting methods due to the development history and other reasons. Five suggestions are proposed to make explicit the object and purpose of the forest resource value accounting, establish universal, scientific, measurable and concise index system for value evaluation, calculate forest resources value in consideration of forest type and position, distinguish accurately the functions from benefits of the forest resources, and suit value calculation result to the practice of social economy.