港区铺面结构的当量单轮荷载  

Equivalent single wheel load of pavement structures in harbour district

作　　者：胡洪龙[1,2] 谈至明[1] 袁静波[3] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]广西交通投资集团广西金盟工程有限公司,广西南宁530000 [3]中交第四航务工程勘察设计院有限公司岩土所,广东广州510000

出　　处：《中国港湾建设》2014年第5期21-27,共7页China Harbour Engineering

基　　金：交通运输部水运工程建设项目(JSKF-W-201201)

摘　　要：为考虑港区繁杂荷载对铺面结构的影响。通过引入当量单轮荷载系数和旁邻轮影响系数,明确了当量单轮荷载概念及其计算公式;计算了港口常用各种型号的叉车、正面吊、轮胎式和汽车式起重机、跨运车、龙门吊、集装箱拖挂车、平板车等装运机械在不同铺面结构条件下,针对沥青面层层底弯拉应变、半刚性基层层底弯拉应力及土基顶面压应变的当量单轮荷载系数;进而得出了针对不同设计指标的各种常用装运机械当量单轮荷载系数的变化规律;建立了当量单轮荷载系数与铺面结构参数的回归关系式。To consider the effect of complex loads on pavement structures, the concept and formula expression of equivalent single wheel load are clear and definite by introducing the equivalent single wheel load coefficients and adjacent wheel effect coefficients. The equivalent single wheel load coefficients basis on flexural tensile strain at the bottom of asphalt layer, flexural tensile stress at the bottom of semi-rigid base layer and compressive strain at the top of subgrade for shipping machineries such as forklift, front carrier, tire and vehicle crane, gantry cranes, straddle carriers, container trailers and platform trailer are calculated. Then rules of equivalent single wheel load coefficients of different design indexes are obtained. The regression relation formulas between equivalent single wheel load coefficients and pavement structure parameters are established.

关 键 词：铺面工程 装运机械 弯拉应力 土基压应变 当量单轮荷载 

分 类 号：U652.74[交通运输工程—港口、海岸及近海工程]