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                                                                                                            山東滕州小型旋挖機廠家聯系電話圖片

                                                                                                            旋挖機施工作業的準備工作

                                                                                                            旋挖機施工作業的準備工作

                                                                                                            發布時間:2020-02-20 瀏覽次數:0 次

                                                                                                            旋挖機施工作業的準備工作主要包括資料準備、場地的四通一平、設備的運輸組裝、護筒制作以及泥漿制作等。

                                                                                                            (一)資料準備

                                                                                                            在工程施工之前,一定要做好巖土勘察報告、地下埋設物資料以及施工技術交底等資料的收集整理工作,明確施工相關的各項要求規定。

                                                                                                            (二)場地的四通一平

                                                                                                            通水、通電、通車、通信,以及場地平整。場地平整坡度≤20°當施工場地條件較差時,可鋪設鋼板,確保旋挖設備進場后具備施工條件。

                                                                                                            (三)設備的運輸組裝

                                                                                                            旋挖機的運輸圖片

                                                                                                            旋挖機是大型的施工設備,為了符合國家運輸限高和限重的相關規定,通常情況下,在運輸時采取整機拆分運輸,由多輛平板運輸車運輸到施工工地。

                                                                                                            (四)護筒制作

                                                                                                            護筒對成孔、成樁的質量有著重要影響,對于維護孔壁穩定發揮極大的作用,鉆孔前應設置堅固不漏水的護筒。護筒的作用有以下幾種:

                                                                                                            1.定位及鉆孔導向;

                                                                                                            2.保護孔口,以及防止地面雜物掉入孔內;

                                                                                                            3.隔離孔內孔外表層水;

                                                                                                            4.樁頂標高控制依據之一;

                                                                                                            5.保持孔內水位高出施工水位一定高度以穩定孔壁。

                                                                                                            旋挖機施工前應準備好護筒

                                                                                                            孔口護筒用8-15mm厚的鋼板卷制而成,長度3-6m,護筒的內徑應比設計樁徑大20-40cm,頂部側面留一個送漿口。頂端對稱焊有一對吊耳或留有孔洞,用于裝吊護筒及為防止下沉支墊方木之用。鉆孔完成,可將護筒拔出重復使用。

                                                                                                            (五)泥漿制作

                                                                                                            采用泥漿護壁施工時,根據相應的泥漿配比,提前購置所需的泥漿材料(膨潤土、純堿、纖維素),開挖泥漿池,配備所需的攪漿設備、泥漿輸送所需管道以及泥漿性能檢測的現場儀器(泥漿比重計、黏度計、含砂量測定儀)。


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