工效测定与成本分析在黄金坪超长锚索项目上的应用
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摘要
复杂地质条件下超长锚索施工具有一定难度,且锚索的设计规格等超过设计规范、概预算定额的常规情况,加大了工程成本控制的难度。为真实测定特殊地层的锚索实际施工成本,加强项目投资控制和为合同变更管理提供依据,可采用工效测定和成本分析的方法。本文论述了如何对钻机造孔、成孔预固结灌浆和锚索制安的成本进行分析,并依据分析成果对以上三部分进行计量、计价。该方法加强了发包人对投资的控制力度,经济效益明显,可为同类项目参考。
The super-long anchor cable construction under complex geological conditions has certain difficulty. The anchor cable design specification,etc. exceed general situation in the design specification and preliminary budget quota,thereby increasing the difficulty of engineering cost control. Work efficiency measurement and cost analysis methods can be adopted in order to actually measure the anchor cable actual construction cost in special formation,strengthen the project investment control,and provide reference for contract change management. In the paper,how to analyze the cost of hole drilling by a drill,hole pre-consolidation grouting as well as anchor production and installation is discussed. The three parts are measured and calculated according to the analysis results. The method strengthens the control force of contractor to the investment with obvious economic benefit,which can provide reference for similar projects.
The super-long anchor cable construction under complex geological conditions has certain difficulty. The anchor cable design specification,etc. exceed general situation in the design specification and preliminary budget quota,thereby increasing the difficulty of engineering cost control. Work efficiency measurement and cost analysis methods can be adopted in order to actually measure the anchor cable actual construction cost in special formation,strengthen the project investment control,and provide reference for contract change management. In the paper,how to analyze the cost of hole drilling by a drill,hole pre-consolidation grouting as well as anchor production and installation is discussed. The three parts are measured and calculated according to the analysis results. The method strengthens the control force of contractor to the investment with obvious economic benefit,which can provide reference for similar projects.
引文