工程质量
工程質量
공정질량
QUALITY OF CIVIL ENGINEERING AND CONSTRUCTION
2015年
4期
79-82
,共4页
高层建筑%纠倾加固%筏板基础%阻沉桩%侧限桩
高層建築%糾傾加固%筏闆基礎%阻沉樁%側限樁
고층건축%규경가고%벌판기출%조침장%측한장
high-rise building%inclination-rectifying and reinforcement%raft foundation%resistance pile%lateral restraint pile
根据沈阳某高层筏板基础的纠倾工程，对该建筑物采取的综合纠倾法进行了系统的研究。纠倾过程中遵循安全、协调、平稳、可控、环保的原则，首次采用在建筑物西北侧外增加阻沉桩，在外围其他部分设置侧限桩，并将原筏板基础向外扩大与阻沉桩相连，同时结合堆载预压法、排水固结法[1]、沟槽开挖、扰动沙石的方法进行纠倾迫降。最终使该高层建筑物逐渐回倾，南北方向的倾斜率由原来最大的3.23‰回倾至2.5‰以内，满足国家相关规范的要求。该工程不仅丰富和发展了在复合地基条件下高层建筑纠倾技术应用的空白，而且对今后高层建筑物的纠倾具有重要的借鉴意义。
根據瀋暘某高層筏闆基礎的糾傾工程，對該建築物採取的綜閤糾傾法進行瞭繫統的研究。糾傾過程中遵循安全、協調、平穩、可控、環保的原則，首次採用在建築物西北側外增加阻沉樁，在外圍其他部分設置側限樁，併將原筏闆基礎嚮外擴大與阻沉樁相連，同時結閤堆載預壓法、排水固結法[1]、溝槽開挖、擾動沙石的方法進行糾傾迫降。最終使該高層建築物逐漸迴傾，南北方嚮的傾斜率由原來最大的3.23‰迴傾至2.5‰以內，滿足國傢相關規範的要求。該工程不僅豐富和髮展瞭在複閤地基條件下高層建築糾傾技術應用的空白，而且對今後高層建築物的糾傾具有重要的藉鑒意義。
근거침양모고층벌판기출적규경공정，대해건축물채취적종합규경법진행료계통적연구。규경과정중준순안전、협조、평은、가공、배보적원칙，수차채용재건축물서북측외증가조침장，재외위기타부분설치측한장，병장원벌판기출향외확대여조침장상련，동시결합퇴재예압법、배수고결법[1]、구조개알、우동사석적방법진행규경박강。최종사해고층건축물축점회경，남북방향적경사솔유원래최대적3.23‰회경지2.5‰이내，만족국가상관규범적요구。해공정불부봉부화발전료재복합지기조건하고층건축규경기술응용적공백，이차대금후고층건축물적규경구유중요적차감의의。
This paper described the inclination-rectifying methods which were used in a high-rise building with raft foundation in Shenyang. The methods were introduced for the first time in this project. Combining with surcharge preloading,consolidation by drainage,excavation and gravel disturbance methods,the settlement resistance piles and lateral restraint pile were used in this project. The raft foundation of this building was extended and connected with the settlement resistance piles. By using the methods,the high-rise building gradually tilted back,and the declivity ratio reduced to 2.5‰ or less from the maximum 3.23‰. Finally,the declivity ratio of this building satisfies the requirement of national code. The above analysis showed the methods developed the high-rise building rectification technology under complex ground conditions,and had important influence on other projects.
