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1 前言 在老城区进行桩基施工,因地下情况复杂、障碍重重,往往给桩基施工带来较大困难,不但常遇到块石、混凝土等老基础障碍,而且有时还会碰到地下钢管、钢筋等特殊障碍,这对桩基施工确实带来难以想象的困难。 浙一医院医技楼为新建成的22层大楼,由于在使用中发现室内电梯人流量太大不够用,拟在该楼外侧增加2座附墙式室外电梯井。该电梯井采用钢结
1 Introduction In the old city of pile construction, because of the underground complex conditions, numerous obstacles, often to the pile foundation construction more difficult, not only often encountered stones, concrete and other old basic obstacles, and sometimes encounter underground steel pipe , Steel and other special obstacles, which is unmanageable pile construction difficult. Zhejiang Medical Hospital Building, a newly built 22-storey building, as found in the use of indoor elevator traffic is too large, it is intended to be added in the outer side of the building with two external wall-mounted elevator shaft. The shaft is made of steel