耙吸挖泥船艏吹钢圆筒及装驳工艺应用

Application of blow filling technology at steel cylinder and barge loading of TSHD

针对钢圆筒围堰灌砂施工进度慢、外购砂成本大的问题,采用耙吸船分流艏吹充填钢圆筒工艺,实现一天成型4个钢圆筒,施工效率比吹砂船提高5倍,成本仅为吹砂船的14,具有良好的技术价值和经济价值。同时,采用耙吸船进行艏吹装驳施工,保障了袋装砂供应,解决了外购砂源不足及外购成本大的问题。耙吸挖泥船艏吹钢圆筒、装驳工艺在某工程的应用可保障工程进度和节约成本,为耙吸挖泥船艏吹工艺的多功能运用提供借鉴。

Aiming at the problems of slow sand filling construction of steel cylinder cofferdam and high cost of purchased sand,this paper adopts blow filling technology of TSHD by the way in which multiple tubules disperse water flow filled steel cylinder cofferdam to form 4 steel cylinders in one day.The construction efficiency is 5 times higher than that of sand blowing ship,and the cost is only a quarter of that of sand blowing ship,which has good technical and economic value.At the same time,the construction process of loading barge is carried out by TSHD,which guarantees the supply of bagged sand and solves the problem of insufficient sand source and high cost of outsourcing.The application of blow filling technology at steel cylinder and barge loading of TSHD in M project can guarantee project progress and save cost,and provide reference for the multi-functional application of blow filling technology of TSHD.