浅析高压旋喷桩地质钻机引孔补充定额测定

Analysis on the Supplementary Quota Determination of the Leading Hole of the High Pressure Jet Grouting Pile Geological Drill

在市政工程预算定额中未考虑不良地质所带来的的施工降效,造成施工成本与预算额产生差别,需要进行补充定额测定。为此,本文结合市政工程现场情况,以中电建路桥郑州107辅道快速化工程中隧道施工为例,针对遇到粉土和粉砂层不良地质施工,提出施工措施,并采取现场实测法来测定消耗的工料机数据,为定额站确定最终的定额子目奠定基础。

The construction efficiency reduction caused by bad geology is not considered in the budget of municipal engineering budget,which causes the difference between construction cost and budget amount,and supplementary quota measurement is needed.To this end,this paper combines the situation of the municipal engineering site,taking the tunnel construction in the Zhengzhou 107 auxiliary road rapidization project of Powerchina Roadbridge as an example,proposes construction measures for the encountering bad geological construction of silt and silt layer,and adopts the field measurement method to determine the consumption of the material data,to lay the foundation for the final station to determine the final quota.