简析斜坡式土工布铺设及压护方法  

Brief Analysis of Slope Laying and Pressure Protection Method of Geotextile

作　　者：李浩 王贺良 李阳光 Li Hao;Wang Heliang;Li Yangguang(Jiangsu Huadian Ganyu LNG Co.,Ltd.,Lianyungang Jiangsu 222100,China;CCCC First Harbor Consultants Co.,Ltd.,Tianjin 300220,China)

机构地区：[1]江苏华电赣榆液化天然气有限公司,江苏连云港222100 [2]中交第一航务工程勘察设计院有限公司,天津300220

出　　处：《港口航道与近海工程》2024年第3期116-119,共4页Port,Waterway and Offshore Engineering

摘　　要：传统土工布倒滤层铺设与压护采用人船配合协同作业,存在配合难度大、铺设精度与压护质量、效率无法得到保证的问题,在面临工期紧张、铺设压护要求高、环境要求严的情况,本文提出钢管或PVC管系绑土工布,潜水员配合的方式完成土工布铺设,同时提出吨袋、连锁砂袋和坡面满铺砂土、黏性土压护坡肩、坡面、坡脚的方式既保证足够的压护质量,又能增强对土工布倒滤层的保护,减少摩擦、冲刷造成的损伤。吹填作业开始后,经现场观察与验证,本方法较好地保证了土工布倒滤层的铺设及压护质量,避免吹填材料流失、泥浆渗漏。The laying and pressure protection of the traditional inverted filtering layer of geotextile require close collaboration between man and ship,which causes the difficulty in coordination,the problems related to laying accuracy,pressure protection quality and efficiency.In response to short construction period,high requirements for laying,pressure protection and environmental protection,it is proposed to tie steel pipe or PVC pipe with geotextile,and then a diver provides assistance in laying geotextile.At the same time,it is proposed to use ton bags,interlocking sand bags or cover slope surface with sand and cohesive soil,which achieves the pressure protection of slope shoulder,surface and root,satisfies quality requirement,enhances the protection of inverted filtering layer of geotextile,reduces the damage caused by friction and erosion.During dredger-fill,the field observation results verify the applicability of the method,that is,it not only ensure the laying and pressure protection quality of geotextile filtering layer,but also avoid the loss of filling materials or the leakage of mud.

关 键 词：陆域吹填 倒滤层 土工布 吨袋 压护 

分 类 号：U655.4[交通运输工程—港口、海岸及近海工程]