Abstract: The high-strength prestressed concrete pile (PHC) with its high strength concrete pile, wide adaptability and good impact resistance, penetration, with high capacity, flexural cracking performance, construction of fast, convenient stable and reliable quality, durability, etc., and is widely used in high-rise building foundation. This paper discusses the technical measures in the pipe construction.
Key words: pile construction; technical operations; pile treatment
Introduction：Currently, high-strength prestressed concrete pipe has been applied to housing construction and bridges, piers and other projects. High-strength prestressed concrete pipe (PHC) with its high strength concrete pile, wide adaptability, good impact resistance, penetration, with high capacity, flexural cracking good performance, construction speed, convenience, quality reliability, durability and good, and is widely used in high-rise building foundation. Pipe is soil compaction piles, construction speed, a large number of injections in soft soil area, the soil pore water pressure, excavation without effective control, will cause partial piles, such as the quality of the broken pile accident . Therefore, we must for the quality characteristics of soft soil in the pipe construction, earth excavation techniques and adopt effective measures to guarantee the progress of pile foundation and excavation.


摘 要：高強度預(yù)應(yīng)力混凝土管樁（PHC）以其樁身混凝土強度高，適應(yīng)性廣，耐沖擊性能好，穿透力強，具有承載力高，抗彎抗裂性能好，施工快捷、方便，質(zhì)量穩(wěn)定可靠，耐久性好等優(yōu)點，而被廣泛應(yīng)用于高層建筑基礎(chǔ)。本文探討了管樁施工中的技術(shù)措施。
關(guān)鍵詞：管樁施工 技術(shù)操作 樁基處理
引言：目前，高強度預(yù)應(yīng)力混凝土管樁已被推廣應(yīng)用于房屋建筑和橋梁、碼頭等工程中。高強度預(yù)應(yīng)力混凝土管樁（PHC）以其樁身混凝土強度高，適應(yīng)性廣，耐沖擊性能好，穿透力強，具有承載力高，抗彎抗裂性能好，施工快捷、方便，質(zhì)量穩(wěn)定可靠，耐久性好等優(yōu)點，而被廣泛應(yīng)用于高層建筑基礎(chǔ)。管樁屬擠土樁，施工速度快，軟土地區(qū)大量施打后，土體超孔隙水壓力較大，開挖時如未進行有效控制，將會引起偏樁、斷樁等的質(zhì)量事故發(fā)生。因此，必須針對軟土地質(zhì)特點，在管樁施工、土方開挖方面采取有效技術(shù)措施，保證樁基質(zhì)量和挖土進度。