填土边坡土钉支护的模型试验研究

Model experiment study on soil nailing applied in filled-soil side slope

由相似原理推导出了本模型试验的相似法则,并在此基础上完成了复合土钉支护在填土边坡中应用的模型试验研究,分析了上部土钉比下部土钉所承受的土体拉应力更大,土钉的实际受力分布形态与土压力分布形态没有对应关系,在无支护的滑塌面部位或附近,土钉支护后仍存在优势滑移,这是对“加固后滑塌面后退”说的反证。

The similarity role of this similar model experiment is established by similar model theory. A model experiment on soil nailing applied in filled - soil side slope is carried out. It shown that the draw stress of top soil nailings is greater than below .soil nailings, the factual stress distribution have little corresponding relation with the soil pressure distribution, and there are still having preponderant slip surface in primary slump location and which is a eounterevidence to ＂slump surface go backwards after strengthening＂ that talked about.