论文部分内容阅读
处治桥梁桩基大型溶洞时如采用传统的注浆固结溶洞填充物的预处理方法,不但费用高,效果往往达不到预期,我们在广乐高速公路T11合同处治大型溶洞时改为在较厚的宜坍塌砂卵石覆盖层中采用袖阀管注浆使得在桩基周围形成帷幕墙,并配合抛填片石、粘土法处治桥梁桩基大型溶洞,达到了经济实用的效果,值得总结推广。
When dealing with the large caverns of bridge pile foundation, the traditional method of pretreatment of grouting by grouting solidifies not only the high cost but also the unsatisfactory result. When we deal with a large cave in the T11 contract of Guangle Expressway, The use of sleeve valve grouting in the thick sand-covered pebble cover should make the curtain wall around the pile foundation, and cooperate with thrown stone tablet and clay method to treat the large caverns of bridge pile foundation, which has achieved economic and practical results and is worthy of summarizing and popularizing.