基坑开挖安全交底.doc

上传人:本田雅阁 文档编号:2028894 上传时间:2019-02-06 格式:DOC 页数:53 大小:146.51KB
返回 下载 相关 举报
基坑开挖安全交底.doc_第1页
第1页 / 共53页
基坑开挖安全交底.doc_第2页
第2页 / 共53页
基坑开挖安全交底.doc_第3页
第3页 / 共53页
亲,该文档总共53页,到这儿已超出免费预览范围,如果喜欢就下载吧!
资源描述

《基坑开挖安全交底.doc》由会员分享,可在线阅读,更多相关《基坑开挖安全交底.doc(53页珍藏版)》请在三一文库上搜索。

1、安全交底记录C2-03 工程名称哈尔滨市地铁一期土建工程施工八标段编号交底项目交通学院站基坑开挖交底日期2010年3月23日交底内容基坑开挖安全交底 安全交底一、合理协调开挖与钢支撑安装之间的关系1. 土方开挖遵循“竖向分层、水平分段、对称、平衡、快速开挖、快速支撑、开槽支撑、严禁超挖、确保工程安全质量前提下快速施工”的原则,根据钢支撑的间距确定每层厚度,随挖随撑,并施加预应力,以形成稳定的支护结构。2. 基坑开挖要控制合理的开挖速度和加设横撑的时间,充分利用时空效应。3. 随时对支撑预应力进行监测,当预应力损失时,及时补加预应力至设计值规定值。4. 减少基坑顶边缘地面荷载,严禁超载,特别是机

2、械在坑边作业时采取适当的措施,确保基坑边坡的稳定。5.合理安排每道工序,加强监测,施工期间,自始至终设专人监测,配备先进的检测仪器,对各项工序进行监测,实行信息化施工。主要监测内容:坑内外降水曲线监测,地面沉降,钻孔桩垂直度监测,钢管支撑的应力监测等。二、基坑开挖应急措施1.在基坑开挖过程中,各部位支撑受力复杂,如果某部位受力不均,就容易引起基坑失稳,故在基坑开挖时采取以下措施:1)备足一定数量的临时钢支撑、工字钢腰梁、注浆机、地质钻机、注浆材料等物资材料,成立基坑开挖应急小组,做好防范措施。2)开挖土方时,严密监控围护结构变形。如出现围护结构变形过大,应急小组马上启动,施作工字钢腰梁,架设临

3、时钢管支撑,待变形稳定后,再继续开挖土方。3)开挖过程中如出现漏水、涌砂等现象,启动应急小组,马上打钻注浆堵漏,或采取基坑土回填。2.防涌砂措施 1)开挖时对围护结构拐角等薄弱部位设专人监视,若出现少量渗漏,及时处理,先堵漏后注浆交底人审核人接底人安全交底记录C2-03 工程名称哈尔滨市地铁一期土建工程施工八标段编号交底项目交通学院站土方开挖交底日期2010年3月23日交底内容土方开挖安全交底再开挖,必要时设置排水管采取引流的方法将其疏干,防止渗漏点扩大;严重时可在围护结构外侧增加旋喷桩止水。2)通过及时反馈的监测信息严格控制围护结构变形在允许范围内,需要时加密支撑,防止变形过大,遇薄弱环节错

4、位开裂,出现渗水通道时,及时处理。3防边坡失稳措施1)分层开挖,层间设台阶,每层开挖边坡坡率根据地质情况按规定放坡;2)在基坑四周及基坑内设置完善通畅的排水系统,保证雨季施工时地表水的及时抽排;3)密切观测天气预报,暴雨或大雨来临前,停止开挖,立即对边坡进行覆盖防护。同时,及时抽排汇入排水沟内的水,尽量减少基坑积水,确保基坑安全。4.关于基坑涌砂、塌陷的预案当出现渗漏现象时,往往来势凶猛而又突然的大量涌水涌砂、边坡失稳、坍塌及附近建筑物、路面急剧沉陷等。为保证基坑开挖的稳定和安全,避免出现涌水涌砂现象的出现,采取措施:1)配备堵漏经验丰富的施工队伍,成立漏水涌砂救急小组,在出现险情时能立即行动

5、,投入抢险工作;2)配备注浆机,备足沙袋及注浆材料,一旦基坑出现涌水涌砂,立即抛填沙袋,钻孔注化学浆液(双液注浆,即水玻璃水泥浆)形成固砂止水帷幕堵漏。三、残留水的处理由于粉质粘土夹层的不均匀性,给降水效果带来比较差的效果,需在开挖过程中随时注意残留水的处理,如处理不好,会产生较大的安全隐患。1、首次开挖时应将降水井提前进行降水,以便土层失水,减少残留水的存在量。2、开挖时在开挖处中心先对残留水进行探测,预估其破坏性,以便提前做好疏干残留水的准备。交底人审核人接底人安全交底记录C2-03 工程名称哈尔滨市地铁一期土建工程施工八标段编号交底项目交通学院站土方开挖交底日期2010年3月23日交底内

6、容土方开挖安全交底3、对开挖处的边坡要适当放缓,避免产生流砂,引起边坡不稳。4、对基坑内运输通道要提前做好防滑准备,确保土方开挖顺利进行。 四、安全措施(1)采用人工开挖时,两人操作间距应大于3.0米,不得对头挖土;挖土面积较大时,每人工作面积应不小于6m2。(2)机械挖土严禁无关人员进入场地内,挖掘机工作半径范围内不得站人或进行其他作业。卸土应待整机停稳后进行,不得将铲斗从运输汽车驾驶室顶部越过。(3)每开挖至支撑位置时,先按要求设置支撑,待支撑全部加固完毕后,再向下开挖,以确保基坑稳定;严格控制开挖坡度,高度,严防坍塌。(4)支撑确保水平,防止受力不均导致局部或整体变形面造成事故,并进行严

7、密监测;(5)支撑构件安装牢靠,避免局部失稳;(6)支撑拆除在施工负责人的指导下严格按规范操作,并严密监测,避免突然卸载造成事故。(7)随时检查支护的变形情况,发现异常情况,先撤离施工人员和设备,等维修完毕后,方可继续开挖;(8)在基坑内进行电焊作业时,应做好个人的绝缘防护工作,严禁将电线及用电设备浸泡水里面,以防漏电。(9)基坑顶部边缘严禁堆置重物。挖掘机或其它机械在坑顶进行挖基作业时,距坑边的安全距离一般不小于1m,零星材料及小型具堆放距坑边的安全距离不小于0.8米。(10)吊车、挖掘机司机作业时要提高警惕,严禁碰撞支撑。(11)在基坑开挖及支撑安装时,吊车、挖掘机司机作业时要有专人指挥。

8、(12)每班进入工作场地的人员应登记进入,非施工人员进入施工场地必须经过项目施工负责人的批准。交底人审核人接底人安全交底记录C2-03 工程名称哈尔滨市地铁一期土建工程施工八标段编号交底项目交通学院站土方开挖交底日期2010年3月23日交底内容土方开挖安全交底接底人员签字:(英文版 ) Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive

9、strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading c

10、adres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of inter

11、pretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main c

12、hanges and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics s

13、everal guidelines and column 1 by 2015 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of

14、 inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth pl

15、enary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementa

16、tion of January 2010, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not al

17、lowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and C

18、riminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the

19、construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws

20、 and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading

21、 cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first amendment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of

22、 the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communist Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth sess

23、ion of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment, the Central Commission for Discipline Inspection from 2014 under six months begin study two regulations revision. The Standing Committee of the Central Co

24、mmission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amendment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of

25、 the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first party committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central

26、Committee of the Communist Party of China, on 7 September 2015, the general office of the Central Committee of the Party issued a notice to solicit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party),

27、 the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Ce

28、ntral Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrat

29、ed the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and implement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping

30、important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution

31、 to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party consciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the f

32、undamental law, the party must follow the general rules. In early 2015 held the eighth session of the Central Commission for Discipline Inspection Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also

33、the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of

34、discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the regulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. T

35、he revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji,

36、 Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for t

37、he majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at the present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especi

38、ally the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight provisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on

39、 in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp several key problems (a) adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leadership of

40、the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specifications, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is close

41、ly linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohibition 52 are not allowed to about the content of the negative list moved into synchronization amendment . Three is for all the party members, will apply ob

42、ject from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than the ordinary Pa

43、rty members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the first insists on a positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the party and the Natio

44、nal Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision of the , a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cos

45、t clean and self-discipline, the main contents can be summarized as four must eight code. Lead part, reiterated on ideal and faith, fundamental purpose, the fine traditions and work style, noble sentiments, such as four must the principle of requirements, strong tone of self-discipline, The higher r

46、equest for 6 and supervised tenet, the foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards requirements. Members of self-discipline norms around the party members how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance bitter music, put forward the four norms. Party leader cadre clean fingered self-discipline norms for the leadership of the party members and cadres of the vital few, around the clean politics, from civil s

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 其他


经营许可证编号:宁ICP备18001539号-1