充淤模袋筑堤现场试验袋体变形监测及分析

堤身变形监测及变形规律的研究, 对于充淤模袋筑堤来说极其重要。现场试验设计了自然排水、真空预压排 水、掺固化剂三种工法进行施工, 通过监测堤身高度及宽度变化, 对三种施工方法的优缺点进行了总结。结果显示, 袋体高度的变化规律与袋体中淤泥固结排水的规律相一致, 并且与所充填的淤泥的性质、掺入固化剂的种类和掺量 以及排水的方式密切相关。研究发现, 体积减少固结法可用于预测竣工后堤身高度。 Monit or ing the embankment deformation and its var iatio n law is very impo rtant for t he building embankment w ith the slurr y filled geot ex tile tubes. Thr ee ty pes of co nstr uction methods w ere desig ned for the building embankment, including natural dr ainage, v acuum prelo ading dra inag e, and adding curing ag ent . The advantag es and disadvantag es of the t hr ee methods wer e summar ized thro ug h the mo nitor ing the var iatio ns of tube height and w idt h. Results showed that the var iation of tube heig ht is co nsistent w ith the co nso lidatio n law o f the slurr y in the tube, and it is also related t o the pro per ties o f filling slur ry , the t ype and do sag e of curing agent, and dr ainage w ay. Mor eo ver , the vo lume reduction consolidat ion method can be used to pr edict the height of embankment after its completio n.