公路施工安全技术交底.doc

交底内容   
沉入桩基础
钢筋混凝土桩采用锤击沉桩时，施工场地应保护平整清洁，打桩机的移动轨道，铺设要平顺、轨距要准确、钢轨要钉牢，轨道端部应设止轮器。打桩架移动时，应在现场施工负责人指挥下进行。桩架移动应平稳，桩锤必须放在最低位置，柴油打桩机后部的配重铁必须齐全。采用滚杠滑移打桩架作业时，作业人中不得在打桩架内操作。水上打桩平台，必须搭设牢固，打桩机底座与平台应连接牢靠。浮式沉桩设备沉桩时，桩架与船体必须连接紧固。船体定位后，应以锚缆封固，并防止施工中浮船晃动。起吊沉桩或桩锤时，严禁作业人员在吊钩下或在桩架龙门口处停留或作业。打桩架及起重工具，应经常检查维修，桩锤检查维修，必须将桩锤放落在地面或平台上，严禁在悬挂状态下维修桩锤。采用高压水泵等助沉措施，其高压水泵的压力表、安全阀、水泵、输水管道及水压等应符合安全要求。高压射水辅助沉桩，应根据地质情况采用相应的压力，并要防止因急剧下沉造成桩架倾倒。射水沉桩，应在桩身入土达到稳定时再射水。震动打桩机开动后，作业人员应暂离心基桩。震打中如发现桩回跳动、打桩机有异声及其它不正常的情况时，应立即停震，并经检查处理后再继续作业。所有开、停震必须听从指挥。震动打桩机在停止作业后，应立即切断动力源。
墩台工程  就地浇筑墩台施工
 施工前必须搭好脚手架及作业平台，并在平台外侧设栏杆。墩高在10m以上时，应加设安全网。吊斗 升降应设专人指挥。落斗前，下部的作业人员必须躲开，不得身倚栏杆推动吊斗。严禁吊
Cards on the table contents
Sinking into the pile
Reinforced concrete piles sunk by hammer pile, the construction site should be protected flat clean, pile the mobile track, laying to ride, to accurately gauge, rail to clinch the track ends should be located just round device. Piling frame moves, the construction leader in the field should be carried out under the command. Post holder should be a smooth move, pile hammer must be placed in the lowest position, diesel pile driver to the rear complete with heavy rail. Piling frame with roll bars slip operation, the operation within the framework of those not in the piling operation. Water piling platform, to be strong erection, pile base and the platform should be connected securely. Floating pile driving equipment, pile driving, the pile fastening frame must be connected with the hull. Hull orientation, should be to anchor cable zonal isolation, and to prevent the construction of floating boat shaking. Lifting or pile hammer pile driving is strictly prohibited workers the hook or pile under the door frame long stay or work office. Piling frame and lifting gear, regular checks of maintenance, inspection, maintenance and pile hammer, pile hammer must fall on the ground or platform release is strictly prohibited in the state of maintenance of pile hammer hanging. Journal of high pressure pumps and other assistance measures, the high pressure pump pressure gauge, safety valves, pumps, water pipes and water pressure and so should be safe. High pressure water jetting auxiliary pile should be used according to the geological situation of the corresponding pressure and to prevent the dumping of rapid subsidence caused by pile frame. Water Jet pile should be buried in the pile to stabilize the water again when the shot. Vibration pile driver is activated, the operating personnel should be temporary centrifugal pile. Earthquake hit back to beat found piles, pile-drivers have different sound, and other irregularities should be stopped immediately shock, and then continue through check processing operations. All open, stop shock must obey orders. Vibration pile driver to stop work in, it should be immediately cut off the power source.
Construction works on the spot pouring pier pier
 Before construction and setting up the scaffolding and platforms, and the platform set up outside the railing. Pier height above 10m, should be added as a safety net. Skip command hand movements should be located. Off before the fight, the lower part of the work must escape, not skip body leaning against the railings to promote. Non-suspended