水利工程围堰体袋装砂施工技术

Construction Technology of Bagged Sand for Cofferdam in Hydraulic Engineering

摘要: 袋装砂围堰技术在水利工程中应用广泛，该技术通过使用土工布袋填充砂土，结合排水固结原理，形成稳定的围堰结构。袋装砂围堰在施工中表现出成本低、施工简便及良好的适应性，特别适用于地质条件较差和水流环境复杂的区域。然而，在高水流速、深水区域的施工中，围堰的稳定性与防渗效果仍面临挑战。为解决这些问题，需通过防渗膜、反滤层等措施进行技术优化。

Abstract: The bagged sand cofferdam technology is widely used in hydraulic engineering. This technique involves filling geotextile bags with sand and soil, combined with the principle of drainage consolidation, to form a stable cofferdam structure. Bagged sand cofferdams demonstrate advantages such as low cost, simple construction, and good adaptability, making them particularly suitable for areas with poor geological conditions and complex water flow environments. However, challenges remain in terms of stability and anti-seepage performance during construction in high-velocity and deep-water areas. To address these issues, technical optimizations such as impermeable membranes and filter layers are required.