粉喷桩加固淤泥地基出现空桩段的再处理

Re-Treatment of Hollow Pile Section on Sludge Base Consolidated by Powder-Jet Piles

回顾了广东惠澳线地方铁路淤泥土地基加固处理的情况,对该路段DK17+171处水泥粉喷桩成桩过程中出现的空桩段进行了原因分析并进行了再处理,提出了在使用粉喷桩加固软土地基中应注意和遵循的原则。

IThe paper reviews the conditions of consolidation treatment of sludge soil base of the local railway of Huiao Railway in Guangdong Province. It also analyzes the cause arisen in the built pile course of cement powder-jet pile at DK17+171 of the road sector and made the re-treatment. At the same time, it puts forward the principle to be paid attention to and followed in consolidating soft soil foundation by powder-jet piles.