- 摘 要
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(中國航空規(guī)劃建設(shè)發(fā)展有限公司，北京 100120)
［摘要］復(fù)合載體樁樁身常用混凝土灌注樁，在深厚軟土地區(qū)其樁身質(zhì)量不易保證；采用PHC預(yù)應(yīng)力管樁作復(fù)合載體樁樁身，既可提高其樁身承載力，又易于保證樁身質(zhì)量。通過天津空港某工程基礎(chǔ)設(shè)計，對預(yù)應(yīng)力管樁與混凝土灌注樁為樁身的復(fù)合載體樁及以PHC管樁為樁身的復(fù)合載體樁進(jìn)行對比，采用預(yù)應(yīng)力管樁為樁身的復(fù)合載體樁單樁承載力高、施工質(zhì)量易于保證。
［關(guān)鍵詞］復(fù)合載體樁；方案比較；樁身；承載力；檢測
Application of the ram-compaction pile with PHC pre-stressed tube as body
Deng Yan, Tang Xiaojun(China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)
Abstract:Normally, the ram-compaction pile body is bored concrete pile, whose quality can′t be guaranteed in deep and thick soft ground. The adoption of PHC pre-stressed tube as the ramcompaction pile body can not only improve pile body strength, but also guarantee body quality. Through the foundation design of a project in Tianjin Konggang, prestressed tube pile and concrete bored concrete pile as the ram-compaction pile are compared with PHC pre-stressed tube pile as the pile body of ram-compaction pile. It is provided that the bearing capacity of the ram-compaction pile with PHC pre-stressed tube as body is bigger than others, and the quality of construction is easy to control.
Keywords: ram-compaction pile; scheme comparing; pile body; bearing capacity; test
作者簡介：鄧燕，高級工程師，Email: dengyan-yang@263.net。
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