零陵明城东门的损伤机理与遗址保护研究  

Research on the Damage Mechanism and Site Conservation of the East Gate of Ming City in Lingling

作　　者：李辉政 LI Huizheng

机构地区：[1]永州职业技术学院,湖南永州425100

出　　处：《重庆建筑》2024年第12期14-18,共5页Chongqing Architecture

基　　金：2023湖南省自然科学基金资助项目“宋明时期零陵东门瓮城遗址:拱券式城门损伤机理与修缮效度分析”(2023JJ50428)。

摘　　要：零陵古城东门,宋明两朝城门共处,至今为全国孤例。遗存至今的明城东门变形严重、裂缝超宽,虽有简易支护,但濒临失效,拱券随时有坍塌可能。基于文献成果和现场勘测数据,对明城东门的损伤机理进行分析。本着加强古遗址保护、延续历史文脉的原则,提出清除寄生于拱券护墙及上部夯土墙中的乔木、生树桩,设置新钢结构支护,对拱券实施渗透灌浆等处理措施。运用STS/SPASCAD和PMSAP进行建模、计算、比较分析,确定了以H型钢HW150×150×7×10为拱架支护骨架,并对支护安装和拱券破损部位修缮进行了探讨。The East Gate of the ancient city of Lingling,which preserves structures from both the Song and Ming dynasties,is a unique example nationwide.The existing East Gate of Ming City exhibits severe deformation and excessive cracking:Despite basic support measures,it is on the verge of failure,with the arch at risk of collapse.Based on historical records and on-site survey data,this study analyzes the damage mechanism of the East Gate.In adherence to the principle of strengthening the protection of ancient sites and preserving historical heritage,the study proposes measures including the removal of parasitic trees and stumps from the protective wall of the arch and the upper rammed earth wall,the installation of new steel structural supports,and penetration grouting for the arch.Using STS/SPASCAD and PMSAP for modeling,computation,and comparative analysis,H-shaped steel(HW150×150×7×10)was identified as the optimal framework for arch support.The study also discusses the installation of the support structure and the restoration of damaged parts of the arch.

关 键 词：零陵 明城东门 拱券 损伤机理 支护 拱架 

分 类 号：TU984.114[建筑科学—城市规划与设计]