西北高原干寒区某机场道面病害分析及防控措施  

Pavement Disease Analysis and Prevention Control Measures of an Airport in the Northwest Plateau Dry and Could Regions

作　　者：李尚仁 谢春庆 潘凯 LI Shangren;XIE Chunqing;PAN Kai(Western Airport Group Qinghai Airport Co.,Ltd.,Xining 810007,China;Guangdong Zhongmei Jiangnan Engineering Survey Design Co.,Ltd.,Guangzhou 410440,China)

机构地区：[1]西部机场集团青海机场有限公司,西宁810007 [2]广东中煤江南工程勘测设计有限公司,广州410440

出　　处：《路基工程》2023年第4期178-187,共10页Subgrade Engineering

基　　金：中国煤炭地质总局科技创新基金项目:大面积填筑地基地下水工程效应研究(ZMKJ-2020-4)。

摘　　要：依托西北高原干寒区某机场工程,针对自建成至今老道面发生大面积的沉陷、板缝错台、断板、碎板、板角剥落、接缝破坏、角隅断裂等病害,通过系统的调查和针对性的物探、坑探、钻探、试验工作,分析了道面病害的类型、分布及成因。结果表明:老道面病害是地基不均匀沉降、地表水入渗、冻融、湿陷、湿化及历史地震综合作用的结果;针对道面病害,提出新道面建设中宜采取拆除老道面,古沟道换填并强夯处理,古沟道置换搭接区及新、老道面搭接区加筋补强,道面影响区填方段垫层强夯处理,道基设置防冻层和隔断层的处置措施,并运用于设计。Based on an airport engineering in the dry and could region of the Northwest Plateau,aimming at the diseases occurred on the old pavement since its completion,such as a large area of subsidence,plate joint fault,misalignment of platforms,broken plates,shattered slabs,peeling of board corners,seam damage,corner fracture,through systematic investigation and targeted geophysical exploration,pit,drilling and test work,the types,distribution and causes of pavement disease were analyzed.The results show that the old pavement disease is the result of the combination of uneven foundation settlement,surface water infiltration,freeze-thaw,collapsibility,slaking,and historical earthquakes.In view of the characteristics of pavement diseases,it is proposed that in the construction of the new pavement,it is advisable to take measures to dismantle the old pavement,refilling and strong ramming treatment of the ancient trench,reinforcement of the ancient trench replacement lap area and the lap area of the new and old pavement,strengthen the cushion of the filling area of the pavement affected area,and set up antifreeze layer and partition layer disposal measures for the pavement foundation,and apply them to the design.

关 键 词：高原干寒区 机场道面 道面病害 成因分析 防控措施 

分 类 号：P642.254[天文地球—工程地质学]