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鉆孔壓灌后插鋼筋籠灌注樁在黏性土層中的應(yīng)用

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摘  要:文章通過對某項目路基的實例剖析,介紹長螺旋鉆孔壓灌混凝土后插鋼筋籠灌注樁在硬塑黏性土層中的成功應(yīng)用,總結(jié)長螺旋鉆孔壓灌混凝土后插鋼筋籠灌注樁施工方法,提出施工控制要點。實踐證明,效果較好,有效保證工程質(zhì)量,可供讀者在以后的施工中參考。

關(guān)鍵詞:長螺旋鉆;壓灌樁;硬塑黏性土;地基處理

中圖分類號:TU753.3      文獻(xiàn)標(biāo)志碼:A          文章編號:2095-2945(2022)18-0186-04

Abstract: Based on the analysis of an example of the roadbed of a project, this paper introduces the successful application of long spiral drilling pressure cast-in-place concrete steel cage cast-in-place pile in hard plastic clay soil, and summarizes the construction method of long spiral drilling pressure cast-in-place concrete back-inserted steel cage cast-in-place pile. The main points of construction control are put forward, and the practice proves that the effect is good, which effectively ensures the project quality and can be used as a reference for readers in the follow-up construction.

Keywords: long spiral drill; cast-in-place pile; hard plastic clay; foundation treatment

1 長螺旋鉆孔壓灌混凝土后插鋼筋籠灌注樁概述

鉆孔壓灌后插鋼筋籠灌注樁是利用鉆機(jī)鉆孔后通過鉆桿中心通道泵送混凝土并壓至孔中,等混凝土達(dá)到一定量后再將鋼筋籠吊入混凝土中,最后形成鋼筋混凝土灌注樁[1]。(剩余4797字)

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