航新路深基沟槽土方开挖及支护监理细则.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七宝生态商务区航新路(新龙路-吴中路)道
13、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
14、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2m3.0
15、m,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
16、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
17、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
18、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
19、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。
20、 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
21、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
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