16預應力土層錨桿工程.doc
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一、 材料準備
預應力筋(鋼絞線、精軋螺紋鋼筋或普通螺紋鋼筋)、32.5級普通硅酸鹽水泥、錨桿錨具 (QM、QVM錨具)。
二、 施工機具
鉆孔機、拔管機、注漿泵、電動油泵、千斤頂、控制儀表等。
三、 作業條件
1、 施工地區的地質勘探資料，查明該地區的土層分布和各土層的物理力學特性，以便確定土層錨桿的布置和選擇鉆孔方法。
2、 了解地下水位及其變化情況、地下水的成分和含量，以便研究對土層錨桿的防腐處理。
3、 查明施工地區地下構筑物及地下管線的位置和情況，以便確定土層錨桿的方法。
4、 考慮土層錨桿施工對鄰近建筑物或地域的影響，如果土層錨桿的長度超出建筑物紅線時，要征得有關部門的同意或許可后方可進行施工。
5、 施工前要編制土層錨桿的施工方案，確定土層錨桿的施工順序，安排好施工進度和勞動力組織，制定鉆孔機械的進場、使用和保養維修
One, materials prepared
Tendons (strand, twisted steel finishing mill or ordinary twisted steel), 32.5 ordinary portland cement, bolt anchor (QM, QVM anchor).
Second, construction equipment
Drilling machine, pulling machine, injection pump, electric pump, jack, control instrumentation.
Third, the operating conditions
1, the construction area of geological exploration data, to identify the area of soil distribution and the physical and mechanical properties of soil to determine soil anchor of the arrangement and selection of drilling methods.
2, to understand changes in groundwater levels and groundwater of the components and content in order to study the corrosion protection of the soil anchor.
3, identification of construction areas and underground structures and the location of underground pipelines in order to determine soil anchor method.
4, consider the construction of the adjacent soil anchor of a building or area, if the soil anchor the length of the building beyond the red line, we must obtain the consent or permission of the relevant departments before they can start construction.
5, before the construction of Anchor in Soil preparation program to determine the soil anchor of the construction sequence, arrange construction schedule and labor organizations, to develop drilling machine approach, use and maintenance