16预应力土层锚杆工程.doc

一、 材料准备
预应力筋(钢绞线、精轧螺纹钢筋或普通螺纹钢筋)、32.5级普通硅酸盐水泥、锚杆锚具 (QM、QVM锚具)。
二、 施工机具
钻孔机、拔管机、注浆泵、电动油泵、千斤顶、控制仪表等。
三、 作业条件
1、 施工地区的地质勘探资料，查明该地区的土层分布和各土层的物理力学特性，以便确定土层锚杆的布置和选择钻孔方法。
2、 了解地下水位及其变化情况、地下水的成分和含量，以便研究对土层锚杆的防腐处理。
3、 查明施工地区地下构筑物及地下管线的位置和情况，以便确定土层锚杆的方法。
4、 考虑土层锚杆施工对邻近建筑物或地域的影响，如果土层锚杆的长度超出建筑物红线时，要征得有关部门的同意或许可后方可进行施工。
5、 施工前要编制土层锚杆的施工方案，确定土层锚杆的施工顺序，安排好施工进度和劳动力组织，制定钻孔机械的进场、使用和保养维修
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