大直徑深孔灌注樁施工要點
發(fā)布時間:2019-06-19 04:58
【摘要】:大直徑樁基斷面較大,要求鉆機的機械性能足夠強大;深孔施工中,隨著深度的增加,孔內(nèi)壓力越來越大,排渣與換漿的難度也越來越大,施工中要采用優(yōu)質(zhì)泥漿。通過介紹武廣鐵路廣州新客站東平水道橋的樁基施工技術(shù),簡要分析大直徑深孔灌注樁施工的重點與難點,提出一些處理方法。
[Abstract]:The large diameter pile foundation section is large, which requires the mechanical properties of the drilling rig to be strong enough. in the construction of deep hole, with the increase of depth, the pressure in the hole is increasing, and it is more and more difficult to discharge slag and change slurry, so it is necessary to adopt high quality mud in the construction. This paper introduces the pile foundation construction technology of Dongping Waterway Bridge in Guangzhou New passenger Station of Wuguang Railway, briefly analyzes the key points and difficulties in the construction of large diameter and deep hole cast-in-place pile, and puts forward some treatment methods.
【作者單位】: 中鐵大橋局武漢橋梁特種技術(shù)有限公司;
【分類號】:U445.551
[Abstract]:The large diameter pile foundation section is large, which requires the mechanical properties of the drilling rig to be strong enough. in the construction of deep hole, with the increase of depth, the pressure in the hole is increasing, and it is more and more difficult to discharge slag and change slurry, so it is necessary to adopt high quality mud in the construction. This paper introduces the pile foundation construction technology of Dongping Waterway Bridge in Guangzhou New passenger Station of Wuguang Railway, briefly analyzes the key points and difficulties in the construction of large diameter and deep hole cast-in-place pile, and puts forward some treatment methods.
【作者單位】: 中鐵大橋局武漢橋梁特種技術(shù)有限公司;
【分類號】:U445.551
【參考文獻】
相關(guān)期刊論文 前1條
1 梅子廣;黃生根;郝世龍;;超長大直徑鉆孔灌注樁施工質(zhì)量控制[J];施工技術(shù);2013年01期
【共引文獻】
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