- 摘 要
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（華南農(nóng)業(yè)大學水利與土木工程學院， 廣州 510642）
［摘要］ 南海廣場二期基坑支護工程周邊環(huán)境相對復雜，依據(jù)地質(zhì)條件采用攪拌樁（旋噴樁）+旋挖樁（沖孔樁）+內(nèi)支撐+預應力錨索的綜合支護方案。在施工過程中監(jiān)測了地表和地層深層土體的水平位移、支撐軸力、預應力錨索內(nèi)力。監(jiān)測數(shù)據(jù)表明，該綜合支護方案既能有效地控制基坑周圍土體的變形，又能使施工空間得到充分利用，從而加快施工工期，確保了項目的順利實施。
［關(guān)鍵詞］深基坑工程; 基坑支護; 監(jiān)測
中圖分類號：TU473 文獻標識碼：A 文章編號：1002-848X(2014)03-0075-04
Monitoring analysis and supporting design of the deep foundation pit of Nanhai Square
He Chunbao
(College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, China)
Abstract: Considering complex peripheral geological conditions, the mixing pile（jet grouting pile）, rotary drilling pile（punching pile）, interior supporting and prestressed anchor cables were combined to form the comprehensive supporting scheme in the deep foundation pit design of second phase project of Nanhai Square. Parameters of earth surface soils and deep soils were monitored in construction stages, including the horizontal displacement, axial force of supporting structure and internal force of prestressed anchor cables. The monitoring data indicate the composite supporting scheme not only controls the deformation around the foundation pit effectively, but also makes full use of construction space and accelerates the construction speed to ensure the smooth implementation of the project.
Keywords: deep foundation pit; foundation supporting; monitoring
作者簡介：何春保，博士，副教授，Email: hcb1238@163com。
參考文獻
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