遂渝线桩网结构路基桩土应力测试分析  

Test Analysis on Pile-Soil Stress in Pile-Net Structure Subgrade of Suining-Chongqing Railway Line

作　　者：谭阳[1] 

机构地区：[1]成都铁路局工务处,成都610082

出　　处：《路基工程》2011年第5期109-111,114,共4页Subgrade Engineering

摘　　要：对遂渝线无砟轨道综合试验段典型断面桩网结构路基进行了现场长期测试试验,测试内容为桩顶及桩间土压力测试。测试结果表明：填筑初期,桩间土的土压力大于桩顶的土压力,随着填筑高度增加到约0.45～0.60 m以上时,桩顶土压力逐渐超过桩间土压力。土拱形成高度约为1.4 m。运营后,所有土压力值均基本保持不变。The typical pile-net structure subgrade in the comprehensive test section of Suining-Chongqing ballastless track has been tested for a long time to test soil pressure on pile tip and between piles.The results showed that at the early stage of filling,soil pressure between piles is more than that on pile tip.When filling height increased to over 0.45~0.60 m,soil pressure on pile tip is gradually more than that between piles.At this time,soil arch is about 1.4 m high.After operation,all soil pressure values are basically unchanged.

关 键 词：桩网结构 土压力 试验研究 测试分析 

分 类 号：U674.381[交通运输工程—船舶及航道工程]