x填砂路基试验段施工方案.doc
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1、In order to ensure normal teaching order, protecting students healthy growth, ensuring that national (property) is not lost, to prevent or minimize the occurrence of safety accidents, follow the prevent, rescue each other, ensure safety and reduce losses principle, according to the local conditions,
2、 make the management system. 1, the principal is the responsibility of school safety, school security under the leadership of President security work leading group. The head teacher to the leadership team is responsible for, implementation of the accountability system. 2, school monthly student know
3、ledge about safety education, education should be diversified in the form every safety education for students of classes per week should be targeted. To carry on emergency issues dealing with education in General, self-help and mutual rescue knowledge. Emergency calls (such as 110, 119, 122, 120, an
4、d so on) use common sense in education. 3, the establishment of major accident reporting system. School students report major accident within an hour of education; student run and disappearances to report; report of the accident to a written report in triplicate, a correctional centre, a police stat
5、ion, a township peoples Government shall not conceal the accident. 4 week, teachers are on duty system, establish and improve the leadership values; strengthen the education, management of teaching activities in schools to ensure normal teaching order; responsible for school safety leadership always
6、 maintained close contact and district police stations, canvassing support from the police station on school safety and help. 5, strengthening teachers moral education, establish a dedicated love, improving education quality, observe the students psychological changes at any time and take preventive
7、 measures, no corporal punishment and covert corporal punishment on students, student out of the classroom, schools may not be. 6, units or departments use student Street propaganda or participate in the celebrations, as well as participating in other social work, without approval of the Correctiona
8、l Centre, school principals consent, without organization. Without the approval of relevant departments, may organize students to participate in fire fighting, disaster relief and so on. 7, schools should educate students to obey the school rules and regulations, on time, on time home to prevent acc
9、idents. 8, school to school inspections on a regular basis, found hidden in time, and in severe cases, it is hard to eliminate immediately closed, and reported to the local peoples Government, education, and rule of law section. 9, the school should always check the internal walls, retaining walls,
10、ponds, railings, handrails, doors, Windows, staircases and a variety of sports, extracurricular activities, facilities such as fire safety, infrastructure security, unsafe facility to immediately repair and demolition to ensure that teachers and students work, learn, live venues and facilities are s
11、afe and reliable. Song Lin Xiang Liu Jia ping elementary school March 2016 song Lin Xiang Liu Jia ping primary school fire safety systems to enhance fire safety, protection of public property and the life and property safety of teachers and students, school fire safety into day-to-day management, is
12、 developing the following fire safety system. 1, strengthen fire safety education of the whole school. According to the requirements of the Fire Services Act, so that everyone has of keeping fire control safety, protecting fire control facilities, fire prevention, reports of fire一、开展填砂路基试验段施工的目的1.1
13、填砂路基试验段的概况二工区拟开展进行试验段施工段落为:位于桩号K3+840-K4+040段,长200米,作为填砂路基的试验段(全断面填砂,编织袋装砂码边坡)。1.2 进行填砂路基试验段的目的1、通过路基试验段施工,摸索并总结出一套低洼农种区路基填砂施工合理的施工组织方案和机械设备配置方式。2、通过试验,摸索并总结低洼农种区路基床的排水、清表及填前碾压、回填及碾压、填料、填筑松铺厚度、碾压设备的碾压遍数等理想的工艺方法和设备配置。3、摸索并总结如何依据填砂路基技术规范、路基质量标准进行规范的程序管理方法和质量控制手段。4、通过本实验段施工,收集相关数据,指导全面的填砂路基施工并达到技术质量标准。
14、1.3 填砂路基试验段主要工程数量主要工程数量表序号主要工程项目单位数量1挖临时排水沟M4002清除表土M360003清表后回填砂M360004路基填筑砂M3280005编织袋人工装土码坡M31440说明:以上数量为估计数量,实际以监理工程师的确认为准。二、施工组织机构及总体安排2.1 试验段的管理和施工人员配备土方施工一队机料员胡留得质检员张玮安全员黎功文施工员徐结文工区经理:卢新平技术负责人:袁雪峰劳动力进场计划表工 种试验段K3+840-K4+040管理人员2技术员4机操手15普工15司机102.2 机械设备配置1、机械设备的配置详见下表。主要施工机械表机械名称规格型号厂牌及出厂时间数量
15、(台)新旧程度预计进场时间小计其中一工区二工区履带式推土机160,移山285轮胎式装载机ZL40:徐州185挖掘机220:现代180双驱振动压路机20T:三一180自卸汽车10平地机185污水泵15062.3 实验段施工计划时间本工程计划2012年4月20日开工,计划2012年5月10日完工,工期20天。2.4施工准备1、技术准备:A、实验室标准实验成果汇总表(包括填料的重型击实,CBR,塑、液限,含水量,颗粒分析等);B、测量全套资料另附表(采用导线点测量记录、导线点、水准点加密横断复测资料)。2、现场准备:A、实验段相应人员组织安排均已到位,实验段协调工作已做好;B、实验段施工机械配备已到
16、位;C、已打通通往实验段的3#施工联络道,人员和机械设备可直接进场作业。三、施工方案3.1施工测量1、 测量所使用的测量仪器必须经过验定部门检定,有检定合格证。2、 测量人员施测前必须熟悉施工图纸。了解掌握业主提供的施工坐标标高、水准点、相对标高及绝对标高之间的关系。3、 采用全站仪和NA20型水准仪进行测量,确保施工误差符合规范要求。4、 测量人员根据业主提供的测量控制资料施测本工程的测量控制网并作出书面材料,经复测合格后,报工程监理工程师验线。5、 定位放线A、根据监理工程师审批后的测量控制网资料测定道路的平面控制网。B、测定道路控制桩。C、验线:首先检查定位依据的准确性和定位的几何尺寸,
17、再检查控制轴线间距是否正确。3.2填砂路基施工1、施工工艺流程砂土填筑路基施工首先施工临时排水沟,粘土包边及泄水管盲沟的安装,再进行砂土填筑施工。工艺流程图见下图。砂土试验注水砂土施工准备清理草皮、表土基底压实基底检验砂土填筑袋装码边推土机粗平平地机精平压实施工单位自检监理工程师检验下一层填筑土工试验砂土运输砂土装袋填砂路基工艺流程图2、施工准备A、复测导线及水准点,测设中线及标高控制桩,逐段进行包边粘土范围和路基放样,并用石灰标识边界范围,并划分卸土网格。 路基每侧宽填50cm。 B、根据土样的来源,现场取样,进行填料试验,作出各类填料的试验指数,并报监理工程师审批。C、修筑临时便道,组织机
18、械人员进场。D、开挖临时排水沟,做好防排水设施。E、在路基边坡两侧,纵向按每50米间距打水井。3、路基填筑路基填筑按填砂路基断面设计图进行施工。分层松铺厚度按底层30cm、35cm、40cm,三种不同层厚进行控制进行试验。采用全断面填筑的方法进行。填砂路基填料的质量控制指标如下: 砂料不得含有树根、草皮和易腐朽物质; 含有沼泽、淤泥的砂不得用于路基填筑; 有机质含量小于5%; 液限指数小于40%,塑性指数小于17; 路基填筑材料要求见下表项目路床顶面以下深度(cm)填料最小CBR值(%)填料最大粒径(cm)压实度(%)填方路基030810963080510968015041594150以下31
19、593A、填前处理 在施工前,根据设计文件及施工规范要求,先对路基基底进行表土清除。清表时采用TY220推土机,清表厚度平均为60cm,以清到硬土为准,然后用PY160平地机刮平。场地清理完成后,全面进行填前碾压,使其密实度达到不小于90%的要求。 B、路基排水 因雨水对填砂路基的冲刷较大,所以在施工前应作好路基的排水工作。在填砂施工前应先开挖路基两侧的排水沟,排水沟的开挖按照设计位置进行,下挖深度0.6m左右,宽度0.6m左右。并且要结合现场实际以沟内的水能排到附近原有的水沟和水塘为准。还要注意附近水沟的深度,以免引起倒灌。 C、铺筑主要工艺砂的运输 首层砂填筑时采用自卸车运输至路基范围,推
20、土机按照虚铺厚度进行摊平。在已填砂路堤表面继续填筑时,必须洒水保持已填筑砂层的表层(不小于20cm厚)砂的含水量不小于15%,当出现较深车辙时,要用推土机或压路机及时整平碾压,才能基本保证自卸汽车将砂运至指定地点卸车;自卸汽车卸砂时要提前距离倒车至卸砂点,因河砂颗粒间内摩擦角较小,如在卸砂点直接调头卸砂容易扰乱已经结板成型的下层填砂,给以后带来质量隐患。砂的摊铺和平整 采用履带式Ty220推土机按路中心低,路侧高,横坡控制在1.5%2.0%摊铺粗平,即成“锅底型”;摊铺粗平厚度达到试验厚度要求后,先洒水至砂的表层含水量不小于10%,再用平地机仔细平整,平整结束,立即采用压路机碾压,对局部含水量
21、偏低的部位(主要是路侧),在压实前或压实过程中可采用水泵补充洒水至压实的最佳含水量。 填砂路堤的压实 填筑面采用平地机仔细整平后,在砂的最佳压实含水量范围,压路机从路中心(低侧)向路缘(高侧)碾压,碾压速度控制在2-4km/h,用高频率、低振幅,直线进退法进行碾压;碾压时,压路机往返轮迹重叠不小于1/3钢轮宽,压完全路宽为一遍。采用20t压路机,试验分别采用振动碾压6,8,10,11遍,检测所达到的压实度并对比设计值,从而确定最佳碾压遍数和最佳填筑厚度。 填砂路堤洒水 填砂路堤施工,洒水是关键,洒水可采用潜水泵进行,现场施工洒水主要是利用潜水泵人工洒水。水源主要是利用沿路堤两侧边沟外打设直径为
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