CAJ | 학술논문

以连云港30万吨级航道建设工程为依托，针对黏粒含量对充填泥袋沉积和排水特性的影响，开展了泥水混合物沉积试验和充填泥袋的排水试验。试验结果表明：①泥水混合物的沉积过程大致可以分为两个阶段，即快速下沉阶段和平稳下沉阶段，快速下沉阶段持续时间较短，平稳下沉阶段持续时间很长，该阶段土体逐渐自重固结；②充填淤泥的黏粒含量越小，沉淀速率越大，沉淀持续时间越长；③充填泥袋的排水率随时间的延长而增大，随着黏粒含量的增加而减小；④从工程安全角度考虑，充填材料的黏粒含量不应大于18%。
이련운항30만둔급항도건설공정위의탁，침대점립함량대충전니대침적화배수특성적영향，개전료니수혼합물침적시험화충전니대적배수시험。시험결과표명：①니수혼합물적침적과정대치가이분위량개계단，즉쾌속하침계단화평은하침계단，쾌속하침계단지속시간교단，평은하침계단지속시간흔장，해계단토체축점자중고결；②충전어니적점립함량월소，침정속솔월대，침정지속시간월장；③충전니대적배수솔수시간적연장이증대，수착점립함량적증가이감소；④종공정안전각도고필，충전재료적점립함량불응대우18%。
Based on the three hundred thousand tons waterway engineering in Lianyungang Harbour, sedimentation test of clay and water mixture and drainage test of mud-filled bag are carried out to study the influences of clay content on the sedimentation and drainage behavior of soil-filled geotextile bag. The results show that:the sedimentation process could be divided into rapid sedimentation stage and steady sedimentation stage approximately, and the rapid subsidence stage has a shorter duration, the later stage has a longer duration, in which the soil consolidates gradually;the smaller the clay content is, the larger the sedimentation rate is and sedimentation duration is longer;the drainage rate of soil-filled bag increases with time and decreases with the incre-ment of clay content;taking account of the engineering safety, the clay content of filled soil should be controlled under 18%.