【摘要】：工程地處浙江省杭州市錢(qián)江新城內(nèi),與錢(qián)塘江相距不足百米,屬高水位強(qiáng)滲透性地基。地上由4幢獨(dú)立的高層塔樓及其裙房組成,分屬4家銀行金融單位,地面以下為整體地下室,其中華融和工行大樓下部為3層地下室,金融大廈和浙商銀行大樓下部分別為4層和5層地下室。深基坑支護(hù)工程按整體基坑考慮,開(kāi)挖深度17.0~24.0 m不等,核心筒部位最大挖深約28.5 m。詳細(xì)介紹了基坑工程概況和特點(diǎn)、圍護(hù)措施和設(shè)計(jì)方案、不同步施工條件下的開(kāi)挖流程和拆撐與換撐措施、不對(duì)稱(chēng)開(kāi)挖條件下的內(nèi)力變形補(bǔ)充計(jì)算、深層地下承壓水處理、基坑施工與現(xiàn)場(chǎng)監(jiān)測(cè)等內(nèi)容,可供類(lèi)似工程設(shè)計(jì)參考。
[Abstract]:The project is located in the Qianjiang New Town of Hangzhou, Zhejiang Province, and is less than 100 meters apart from the Qiantang River. The ground is composed of four separate high-rise towers and their skirts, belonging to four banking and financial units, with the whole basement below the ground, of which the bottom of the Huarong and ICBC buildings is a three-story basement. The financial building and the lower part of the Zhejiang Commercial Bank Building are 4-storey and 5-storey basements respectively. Considering the whole foundation pit, the excavation depth of deep foundation pit varies from 17.0m to 24.0 m, and the maximum excavation depth of the core tube is about 28.5 m. This paper introduces in detail the general situation and characteristics of foundation pit engineering, the enclosure measures and design schemes, the excavation process under different construction conditions, the measures of removing and changing braces, the supplementary calculation of internal force deformation under asymmetric excavation conditions, and the treatment of deep underground confined water. The foundation pit construction and site monitoring can be used as reference for similar engineering design.
【作者單位】： 浙江省建筑設(shè)計(jì)研究院;
【分類(lèi)號(hào)】：TU473.2
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本文編號(hào)：2186997