招标阶段桩基工程计量计价风险分析与规避

Risk Analysis and Avoidance of Quantification and Pricing in Piling Works During Bid Stage

通过分析桩基工程施工中常见的计量计价风险,如空桩、入岩深度增加、溶洞、钢护筒、桩基引孔等影响建筑工程投资超概算的因素,从业主投资控制的角度,提出从招标合同商务条款设置及工程清单清单设置两个方面进行风险规避。商务条款主要明确承包人或业主的原因,确定计量原则;工程量清单通过将现场不能准确计量或受现场条件影响较大的项目(空桩、钢护筒、入岩深度等)与相关清单项合并的方式减少变更时重新组价及结算的风险。

Through the analysis of the common risks encountered in quantification and pricing in piling works such as hollow pile sections,additional drilling section in rock,karst cave,use of steel casing,additional pilot drilling etc,which are critical factors causing overrun construction investment,from the perspective of Employer’s construction investment,this paper proposes two solutions of risk avoidance namely provisions of contract clauses in bidding document and appropriate BOQ.The former is to crystalize the quantification principle by determining the causes of contractor or employer and the latter is to reduce the risks of requiring new prices at time of Variation and disputes in financial settlement by combining the interrelated BOQ items into one that are liable to incorrect site quantification or site conditions(hollow piling sections,steel casing and drilling section in rock etc).