旋挖機(jī)配套長(zhǎng)護(hù)筒成孔技術(shù)在軟土地層的應(yīng)用

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摘  要：介紹旋挖機(jī)配套長(zhǎng)護(hù)筒成孔技術(shù)，通過(guò)對(duì)施工流程、工藝主要控制點(diǎn)和工藝的優(yōu)缺點(diǎn)等方面闡述，為在上海等厚軟土及暗浜發(fā)育地區(qū)，擬建場(chǎng)地地下障礙物多且類型雜亂，回旋鉆機(jī)成孔困難，周邊建筑物位移控制要求高的工程項(xiàng)目基礎(chǔ)樁基施工提供工程參考。

關(guān)鍵詞：鉆孔灌注樁;成孔工藝;旋挖鉆機(jī);削切;澆筑混凝土

中圖分類號(hào)：TU67      文獻(xiàn)標(biāo)志碼：A          文章編號(hào)：2095-2945（2022）28-0177-04

Abstract： This paper describes the holeforming technology of long protective tube for rotary excavator， and expounds the construction flow， control points of technology， advantages and disadvantages of technology， etc.， in order to provide engineering reference for the foundation pile foundation construction of engineering project， where there are many underground obstacles on proposed sites for buildings， where it is difficult to form holes by rotary drilling rig， where there are high requirementsfor displacement control of surrounding buildingsin the development area of thick soft soil and hidden ditchesin Shanghai.

Keywords： bored cast-in-place pile; hole forming technology; rotary drilling rig; cut apart; concreting

上海國(guó)際時(shí)尚中心新建游船碼頭工程（水域部分）位于上海市楊浦區(qū)黃浦江濱江上海國(guó)際時(shí)尚中心前沿水域。（剩余4102字）