大汶河流域戴村石坝抛石槽格宾石笼加固方案探讨

Discussion on the Reinforcement Plan for Daicun Stone Dam in the Dawen River Basin Using Gabion Stone Mattress

文章在上游有来水、下游有壅水、周围有渗水的情况下,研究如何在短时间内快速、高效完成戴村石坝下游抛石槽格宾石笼加固工程。通过多种方案比对及多次现场精准调整,最终采用分级降水、多级导(分)流并配合钢板内衬的施工方案。该施工方案充分利用了钢板强度高、不易变形和格宾丝抗拉强度高且柔性好的优点,消除了格宾丝抗剪能力弱的缺点;具有成型效果好、施工快速、整体性好、表面美观等特点,对水下水上的格宾石笼、铅丝笼施工具有较高的借鉴意义,可广泛应用于河道整治、涵闸加固、堤防加固等工程中,且适用于地下水位较高、施工降排水比较困难的部位施工。

In the context of upstream inflow,downstream backwater,and surrounding seepage,this paper explores how to quickly and efficiently complete the reinforcement of the gabion stone mattress downstream of the Daicun Stone Dam.Through the comparison of multiple schemes and several precise on-site adjustments,a construction plan was finally adopted involving graded dewatering,multi-level diversion,and the use of steel plate linings.This construction plan takes full advantage of the high strength and non-deformability of steel plates,and the high tensile strength and flexibility of gabion wires,thus overcoming the weakness of gabion wires in shear resistance.The plan features good forming effects,fast construction,excellent overall integrity,and aesthetic surface appearance.It provides significant reference value for underwater and above-water gabion and wire mesh construction,and can be widely applied in river regulation,sluice reinforcement,embankment reinforcement,and other projects.It is particularly suitable for construction in areas with high groundwater levels and where dewatering and drainage are challenging.