虎丘塔的倾斜控制和加固技术

虎丘塔是中国现存年代最久且倾斜度最大的楼阁式砖塔。 1981年至 1986年 ,中国工程界对这座濒临险境的古塔进行了全面加固修缮 ,采用了“围、灌、盖、调、换”的加固技术 ,以强化地基为主、塔体纠偏为辅 ,基本控制了塔基沉降 ,稳定了塔身倾斜 ,为保护人类文化遗产提供了有益的借鉴。本文依据虎丘塔的原始施工记录和二十多年的监测记录 ,结合现场实测和计算机模拟 ,重点研究和分析了虎丘塔的倾斜原因、加固技术和实施结果。

INCLINATION - CONTROL AND STRENGTHENING TECHNOLOGY APPLIED TO HUQIU PAGODA

Huqiu pagoda is one with the longest age and largest gradient in the existing Chinese pavilion style pagodas.From 1981 to 1986,Chinese civil engineering community carried out a complete strengthening and remedy project to this ancient pagoda,which was near to dangerous situation. The strengthening technology used for the project includes "stockade, grouting,anti-seepage,rectification and replacement"according to the policy that strengthening groundbase is primary and that rectifying inclination is considered as an assistance so as to controll the foundation settlement and stabilize the structure inclining of the pagoda basically.The project can provide a beneficial reference for protection of human culture heritages. Based on original construction records and monitoring data obtained in more than twenty years and combined with field test and computer simulation,this paper puts emphasis on analysis of the incline causation the strengthening technology and execution result on Huqiu Pagoda.