航新路深基沟槽土方开挖及支护监理细则

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, 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 knowledge 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, and 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 station, 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 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 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 Correctional 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 accidents. 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, 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 safe 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 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七宝生态商务区航新路（新龙路-吴中路）道路新建工程深基沟槽土方开挖及支护监理细则 编制人： 批准人： 上海鼎颐建设监理有限公司七宝生态商务区航新路（新龙路-吴中路）道路新建工程监理部 年 月 日 目 录一、工程概况二、工程监理的依据三、工程监理工作流程四、工程监理工作控制要点及目标值桥梁施工准备阶段监理工作要点桥梁施工监理工作要点五、监理工作的方法及措施监理工作方法监理措施六、质量验收七、资料整理一、工程项目概况1、项目名称:七宝生态商务区航新路（新龙路-吴中路）道路新建工程2、建设地点:航新路（新龙路-吴中路） 3、建设方:上海闵行地产经营有限公司4、设计承包方:上海市政工程设计研究总院（集团）有限公司5、施工承包方:上海敦煌市政工程建设有限公司6、工程范围和内容 : 本工程项目为新建道路南起新龙路、北至吴中路，起终点桩号为：K0+016.006- K0+538.905工程范围内道路长522.899米（规划515米）。道路为城市支路，规划红线为24-30米，设计车速为30公里/小时。新龙路-虹泉路段为双向二快二慢车行道24米，虹泉路-吴中路段为双向四快二慢车行道30米，新建跨河桥梁规划联系河一座（梁底标高不低于4.5米），同步实施雨污水排水工程，以及道路照明、监控、绿化、交通标志标线等附属工程。本工程土方开挖及支护施工范围包括道路工程两侧雨、污水管道设置。其中：本工程雨水管管径为DN600d1200，管道埋深2m3.0m，本工程污水管管径为DN400，管道埋深2.5m4.0m。结合周边环境场地地质条件，拟采用开槽埋管施工。本工程开槽埋管管道埋深1.04.0m，拟建场地多为农田和备用地，比较空旷，当管道埋深3.0米时以放坡开挖或横列板支撑施工为主，明沟排水；当管道埋深3.0米时，采用钢板桩围护施工，井点降水。二、工程监理的依据1、航新路（新龙路-吴中路）道路新建工程排水工程施工图设计2、航新路（新龙路-吴中路）道路新建工程道路工程施工图设计3、航新路（新龙路-吴中路）道路新建工程规划联系河桥施工图设计4、经过审批的施工组织设计及深基沟槽土方开挖及支护施工方案5、地方现行的有关建设管理办法和规定6、岩土工程勘察报告7、建筑工程施工质量验收统一标准GB50209-20108、建筑地基基础工程施工质量验收规范GB0202-20029、建设工程监理规范GB50319-2000 三、工程监理工作流程1、沟槽开挖施工工艺流程地基处理与清基沟槽开挖排水 因地质、土壤拢动等情况、应确定地基处理方案 保护层200mm待下道工序施工前清基 截流地表水 降低地下水位 基槽排水l 开挖断面l 边坡支撑l 坡度板l 雨、冬期施工l 交通l 堆场2、沟槽开挖监理工作流程沟槽开挖申请单 承包单位l 沟槽断面形式l 支撑选用l 施工排水措施l 雨、冬期施工措施监理工程师审批 不同意挖槽、支撑、施工排水与地基处理监理检查 检测槽底高程、中线两侧宽度、地基压实度、槽边坡并填写质量验收报检单双方选择位置，承包单位自检，监理旁站抽检专业监理工程师 返工监理工程师审批 不合格签认沟槽开挖中间交工证书监理工程师四、工程监理工作控制要点沟槽开挖断面形式及边坡设置：表一 沟槽开挖断面形式的选择表综合条件沟槽开挖断面形式地形空旷、地下水位较低地质条件较好、土质均匀、沟槽开挖深度不超过3m，有较好堆土场地可不设支撑，采用梯形槽断面（放坡沟槽开挖）施工环境狭窄、周围地下管线密集开挖深度小于3m应选择直槽断面，宜用横列板支护开挖深度大于或等于3m应选择直槽断面，宜用钢板桩支护土质极差、降低地下水位困难，或在建筑物、地下管线、河道旁等特殊地区应采用特殊支护及加固措施上层土质较好、下层土质松软，当环境条件许可、沟槽深度不超过4.5m可采用混合断面，即上部采用梯形断面，下部采用直槽断面表二 深度在3m以上的沟槽边坡的最陡坡度序号土质边坡（高：宽）坡顶无荷载坡顶有静载坡顶有动载1粉砂、细砂1:1.251:1.51:22砂质粉土、黏质粉土1:11:1.251:1.53黏土、粉质黏土1:0.751:11:1.25沟槽开挖及支护监理要点：1. 放坡沟槽开挖（1） 施工要求： 施工单位应认真编制施工组织设计，根据现场的地形地貌及地质条件，根据沟槽开挖的深度，采取降水措施，并应按表2的规定选择边坡坡度，防止沟槽基底隆起、管涌、边坡滑移和塌方等情况发生。 考虑雨期、冬期施工时对沟槽开挖的影响。 沟槽施工时考虑必要的安全措施，例如：A 若采用井点降水，则应在水位降到开挖面以下0.5m时方可开挖。B 沟槽开挖时堆土应符合安全规范要求，沟槽边单面堆土高度应不大于1.5m，离槽边的距离不得小于1.2m，最好放置于边坡外35m，必要时进行边坡稳定计算。C 为防止雨水冲刷坡面，应在坡顶外侧开挖截水沟，或采用坡面保护措施。D 尽量减少沟槽底部暴露时间，缩短施工作业面。（2） 监理工作要点： 监理工程师必须认真审查施工单位提交的施工组织设计，重点是边坡及基坑稳定措施，达到上述施工要求。 监理工程师必须检查进场人员的组成情况，材料、机具及设备的进场情况。 监理应复查沟槽开挖的中线位置、断面形式、沟槽高程，严防槽底土壤超挖或扰动破坏。 监理应经常检查巡视工地，对现场安全施工进行动态监控。2. 列板支护沟槽开挖（1） 施工要点： 横列板及竖列板的尺寸应有足够的强度和刚度。 横列板放置应水平、板缝严密、板头齐整，其放置深度要到达碎石基础面。 挖土深度至1.2m时，必须撑好头挡板，之后挖撑交替，随挖随撑，必要时提前撑好挡板，一次挡板高度宜为0.60.8m。 横撑板应采用组合钢撑板，其尺寸为厚66.4cm、宽1620cm、长300400cm，竖列板应采用木撑板，其尺寸为厚10cm、宽20cm、长250300cm，当沟槽宽度为小于或等于3m时，撑柱套筒可使用63.5mm6mm的钢管。 铁撑柱两头应水平，每层高度应一致，每块竖列板上支撑不应少于2只铁撑柱、上下2块竖列板应交错搭接。 管节长度小于或等于2m时，铁撑柱的水平间距2.5m；管节长度为2.5m时，支撑水平距离应3m。 铁撑柱的钢管套筒不得弯曲，支撑应充分绞紧，铁撑柱应垫托木并用扒钉或用8#12#铁丝绑扎牢固，上下沟槽应设安全梯，严禁攀登支撑。（2） 监理工作要点： 按上述施工要求检查列板支护。 开挖过程中，对每道支撑不断检查，是否充分绞紧，防止脱落。 撑柱的水平间距、垂直间距、头挡撑柱、末道撑柱等位置要合理、规范。 检查是否需采取降水措施及降水措施的有效性。 参考放坡沟槽开挖的安全措施，对现场安全施工进行动态监控。 为避免原有地下管线的损坏，应督促施工单位先开挖样洞或样口。 施工中若需拆封头子，则应督促施工单位按有关规定执行，并须填写“下窨井工作申请单”，落实监护人员和抢救措施，经有关部门审查和批准后方可实施。3. 板桩支护沟槽开挖常用的是钢板桩支护，可采用槽钢或拉森板桩。槽钢长度为612m，拉森板桩长度为1220m。钢板桩的入土深度应根据沟槽开挖深度、土层性质、施工周期、施工荷载、地面超载（如堆土高度与距离）以及支撑布置等因素经计算后确定，钢板桩的入土深度对保证板桩自身稳定及沟槽、基坑安全至关重要。如：比值=板桩入土深度 沟槽深度 按下述选比值，从而得出板桩的入土深度。 在一般土质条件下，沟槽深度小于或等于5m时，宜取0.35；沟槽深度57m时，宜取0.5；7m以上时，宜取0.65。当土质较差时，值宜按以上选定值适当增大。（1） 施工要求： 根据沟槽开挖边线先挖钢板桩槽，钢板桩槽宽度为0.60.8m，应挖至原土层，并暴露地下管线，消除障碍物。 钢板桩的入土深度经计算确定，选择的钢板桩排列形式要合理。 钢板桩的咬口要紧密，钢板桩要挺直，打入时要垂直。 挖土深度至2m时，应先据地面0.60.8m处撑头道支撑。管项上的1道支撑与管顶净距20cm，离混凝土基础侧面与板桩之间用砖块或短木填塞稳固后，方可拆除临时支撑。 钢板桩支撑的水平间距、管节长度在2m以下是2.5m，钢筋混凝土承插管3m，支撑的垂直间距2m。（2） 监理要点： 检查钢板桩的施工质量，如入土深度、咬口是否紧实，钢板桩是否垂直。 主意沟槽挖土与支撑的配合，严格控制随挖随撑。 检查降水效果，以防支护结构失稳，注意环境安全。五、监理工作方法及措施监理工作方法1、监督施工单位严格按规程及施工组织设计(方案)进行操作，重点对监控要点中的重要工序进行巡视、旁站检查。2、巡视（1）施工承包方是否按经批准的施工组织设计进行施工。（2）各工序施工方法是否符合设计图纸及施工规程的要求，质量是否合格。（3）现场操作是否符合安全生产要求。（4）监理人员在巡视检查中，要对施工全过程施工质量进行抽查，并做好检查记录。3、旁站检查内容详见旁站监理细则4、通知（1）现场监理在巡视、旁站、验收等各种检查中发现已影响施工质量、安全的问题，用监理工程师通知单书面通知施工承包方，施工承包方应及时整改；在施工承包方进行整改后，具备复查条件时，施工承包方向项目监理组填报监理工程师通知回复单，总/专业监理工程师签发复查意见。（2）监理人员发现施工存在重大质量、安全隐患，可能造成质量、安全事故或已经造成质量、安全事故时，要通过总监理工程师及时下达工程暂停令，要求施工承包方停工整改。整改完毕并经监理人员复查，符合规定要求后，总监理工程师应及时签署工程复工报审表。（3）现场监理在巡视过程中，对可能出现和发生的质量、安全问题及时签发监理工作联系单，提醒施工方采取必要措施，消除隐患。5、会议（1）必要时召开专题会议，针对施工中存在的问题，找出原因并制定对策。（2）不定期召开质量分析及总结会，发现问题及时处理。（3）定期召开工程例会。监理工作措施1、 基坑排水效果直接影响坑底的地基承载力及基坑开挖的安全必须严格监控。（1） 审查施工组织审计或施工方案中排水方案是否合理，例如排水设备的选用，排水等级的布置及排水期限内的确定等；（2） 检查施工排水方案的实施情况，例如井点降水是否采用方案中的井点降水排水设备，这些设备是否按要求实施，安装质量如何等，井点管长度及井点管安装高程偏差均不得超过100mm，并随时检查这些设备的使用情况，督促施工单位及时保养维修；（3） 随时检查施工排水方案的实施效果，审查降水记录，若效果不佳必须要做题调整及补救；（4） 当采用井点降水时应使地下水位降至基坑底标高以下0.5m处，沟槽内的明水也应及时排除以免基底土受浸变软及被扰动，并检查是否具有备用防止降水中断或地表水涌入等的应急措施。2、 对深基沟槽开挖若设支撑时，支撑的形式、结构、支拆方法及措施均应审查并监督执行。其中：（1）钢板桩须用符合国家标准的低碳钢轧制成。每根板桩的长度须相同。如果需要可以另外焊接加长，但这必须得到工程师的许可。（2）特制的板桩打入后，形成拐角和交叉连接，夹紧装置要求属于能防止过量的水进入开挖面的那种类型，所使用的板桩必须有一定的强度和刚度，在搬运，纵向振动和打桩时，不能有变形弯曲的现象。（3）板桩应打入最低开挖面以下的一个由承包商确定的深度，该深度应对在最低一道横撑以下的板桩有足够的支撑力。（4）板桩围护须按方案所确定的直线与尺度垂直地打入，并且要互相咬合。（5）板桩上用于拉杆和其它附件地孔必须钻出，如果没有工程师地许可，不能在板上烧制孔。（6）使用其它任何类型的板桩必须得到工程师的许可。除非经工程师许可，承包商必须在工程完工后拆除一切临时板桩。3、基坑开挖必须按以下要求执行：（1）严禁基底下土体超挖，如采用机械挖土，应预留2030cm的后土层，再用人工开挖修平至设计标高，并及时验槽，尽快进行下一道工序施工（2）基坑开挖后如发现基底土质土层与地质报告不符，基底土质不均匀，其物理力学性质相差较大，基底土质厚薄不均匀，基底下局部遇暗浜、孔穴、杂填土等，应组织有关方面做出对地基进行处理的方案，并监督实施。4、雨季开挖基础沟槽时，应采取有效的防护措施。六、质量验收1、放坡沟槽开挖质量标准及验收方法：表一 沟槽开挖允许变差及检验方法序号项目允许偏差检验频率检验方法范围点数1槽底高程-30（mm）两井之间3用水准仪测量2槽底中线每侧宽度不小于规定6挂中心线用尺量，每侧计3点3沟槽边坡不陡于规定6用坡度尺检验。每侧计3点注：槽底土壤不得扰动，严禁超挖后用土回填，槽底应清理干净且不浸水2.列板支护沟槽开挖质量标准及验收方法（1）用直尺和目测，列板及支撑应符合施工要求和监理工作要点要求（2）沟槽开挖的质量标准及允许偏差值同表一的内容3.板桩支护沟槽开挖质量标准及验收方法（1）尺量及目测钢板桩支撑及入土深度并检查排列形式、垂直度符合施工方案的要求（2）沟槽开挖质量标准及允许偏差同表一的内容七、质量整理1、检查施工方资料的完整性（1） 检查、督促施工方及时整理、完善资料的归档。（2） 设计交底记录。（3） 隐蔽工程验收记录。（4） 工序质量评定表。（5） 各类测试报告。（6） 施工原始资料。2、监理组应形成的资料（1） 监理平行检测试验资料。（2） 工序隐蔽工程验收记录及附件。 （3） 监理工程师通知单及回复报审。（4） 监理测量资料。（5） 会议记录。应形成的音像资料：旁站时应拍摄照片，并按建设工程监理音像资料暂行管理办法做好音像资料。Electricity lines, equipment inspections, found hidden in time for rectification, maintenance, and security. 9, do not use an open flame in the classroom, prohibit burning stove, lit candles, mosquito repellent, no smoking, and banning messy wiring. Without using any household appliances is not allowed. 10, live on campus faculty members, must lead by example, and educate families and children ready to fire. 11, household use of gas in schools, to master proper usage, pay attention to the leak-proof, explosion-proof, fireproof, closing valve after use to ensure security. 12, dining room must be qualified, and annual testing of pressure vessels, to regularly check, the canteen workers must be certified, strictly by operation operation, gas tank and stove safety distance of 1.5 meters, to prevent accidents. 13, the adverse consequences caused by ignoring fire safety regulations, will be punished, until investigated for legal responsibility. Song Lin Xiang Liu Jia ping elementary school March 2016 Xiang Liu Jia ping elementary school, pine slopes surrounding safety management system 1 teachers and students, the surrounding area of the school governance covers personal and food hygiene, cultural events and other aspects, integrated governance shall obtain wide support and full cooperation of the community. On the surrounding environment in schools should be closely monitored. 2, school work at the same time, should pay attention to the safety management of school environment, should take the initiative to contact the district police station, the village Committee, Correctional Centre, Township government, business management and other departments to do a good job management. 3, teacher on duty with the exception of inspections in schools, should also pay attention to environmental inspections near the campus, found that the jobless migrants from rural areas, for example, harassment of students and a variety of accidents, according to different situations reported school officials or the police station in a timely manner, to protect the safety of students. 4, every day before school, teachers remind students, pay attention to traffic safety. 5, should educate students to respect social ethics, and various regulations, maintaining public order, and fight the bad guys, and grasp the correct ways and means of maintaining and improving students self-care ability. 6, the establishment of emergency rescue teams of teachers in schools, on high alert and deployed. Song Lin Xiang Liu Jia ping elementary school March 2016 song Lin Xiang Liu Jia ping primary school teachers and students organizations out of safety management system organization activities between teachers and students, to draw up a precise plan and security measures must be signed by the school officials to review the programme of activities agreed upon Correctional Center agreed to implement. Organization to the field relatively far or activities require approval by the Deputy Director of the Education Bureau in charge of security. 2, each activity should have a specific responsibility, pay attention to the persons age, physical match. Route 3, activities, location, field surveys should be carried out in advance. 4, activities for the means of transport should explain the situation to the school to comply with vehicle, safety requirements, before the line for repairs. 5, each activity must have security, emergency response plan for accidents. 6, picnics, hiking, picnic to pay attention to fire prevention, food poisoning, prevention of fall accidents 7, the activities near the rivers, reservoirs, no measures or do not meet the security requirements of the Organization and not let students into the water