A study on the application of cage-type retaining wall in flood control

Abstract

Sub-embankment and geo-bag embankment had been adopted to increase the retaining height in flood control. However, these methods have taken up a lot of manpower and material resources, because of shortage of time, poor soil supplement and inconvenient construction procedures, which limited the scope of application. Cage type retaining wall has the advantages of quick and convenient installation, strong mobility, low cost and easy disassembly during the flood season. The stability of cage type retaining wall is the core issue in engineering application. In this paper, the stability of retaining wall is calculated with various lengths of geomembrane which is laid in the upstream. The results show that stability safety factors of the structure are1.28, 1.58, 1.74 and 1.9 when the lengths of geomembrane are 0.0, 0.5, 1.0 and 2.0 respectively, which could meet the engineering requirements. Besides, application notices are also discussed in this paper.