xz大梁茆隧道不良地质施工方案.doc
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1、the building of grassroots organizations of the party has in place comprehensive and excellent decision, unbalanced development of grass-roots party organizations in schools, fully equipped with strong party branch secretaries, standardized branch of the construction, the party controls the party, s
2、trictly administering the party system deficiencies. Although outdated, lack of specificity, seriousness and restraint system regulations for patch perfect, but failed to form a system, and construction of inner-party regulations needed to further enhance scientific and systematization and standardi
3、zation level. 6, in the implementation of a gang two sittings, to be honest and work the same layout, but sometimes there is too much emphasis on important issues, and one-sided pursuit of tasks implementation issues. (V) space cleanup, housing car description and salary transfers and other aspects
4、of the relationship between school adjustment cleaning office spaces 6326 sqm 143, vacated office room, to repel illegal standard with 5 cars. At present, school leaders and official cars were within the Office space standards. Not illegal part-time wage and transfer related to members of the leadin
5、g group and individual family housing also has personal issues to report truthfully. All school leaders had no full-time Secretary. Second, the analysis of the cause of the problem (a) ideal beliefs are weakened, as transactional work, learning time arrangements are insufficient, received insufficie
6、nt education of ideal and belief. Meanwhile, from the effects of invasion and the thought of social reality, fluctuations, combined with the lack of theoretical learning and mastery, weakened somewhat to communist ideals and beliefs. Ideal and faith is the root of party members and cadres, pulse of
7、country, soul, has no roots, no pulse, no soul, it will be a big problem. Second, weakening of spiritual pursuit, as not enough energy. Society in General light work light ideal demands, interests and belief choices the influence, eroded our spiritual pursuits, relaxing our self, team loyalty, aware
8、ness, situation awareness, professionalism has weakened, as inadequate. (B) the party spirit has . , Practice area, peoples achievement in perspective, time correction performance oriented, unable to stick to seeking truth from facts, scientific attitudes, pragmatic style, and interests of the peopl
9、e as the starting point and the end point for all the work, establish stand the test of practice, history, and the peoples performance. Third, to benefit, the ability to resist temptation. Not always adhere to the party and the peoples interests above everything else. Personal interests conflict wit
10、h the interests of the party and the people, when fear of sacrifice. On the relationship of give and take, not completely content to the poor and selfless dedication; on dealing with rights and obligations cannot be self-disciplined and law-abiding. In General, there are many reasons, both issues no
11、t strict with themselves, there is vulnerability, external constraint is not strong because of institutional mechanisms. But read between the lines, or personal ideals and beliefs on the root causes landslides, professionalism, responsibility is not strong, four winds problem rectification is not co
12、mplete, no real issues of world Outlook, Outlook on life and Outlook on the master switch problem. All not false questions, if you do not attach great importance to solve, great harm. Part provincial University leaders disciplinary illegal case lessons told we, on personal, self不良地质隧道专项施工方案一、工程概况大梁峁
13、隧道为双线隧道,我单位施工出口段,大梁峁隧道左线施工长度2008m,起讫里程为ZK81+300ZK83+308,并在ZK82+540ZK82+580与YK82+570YK82+610段有断层,围岩由白垩系下统环池河组,以砂岩为主的泥砂岩互层组成,中薄-中厚层状构造,水平层发育,风化类型为中风化,岩体较完整,雨季降水沿节理、裂隙下渗,开挖过程中存在漏水现象,对洞室稳定性影响较大。针对上述情况,结合施工生产要素及施工生产能力,按照“管超前、严注浆、短开挖、不(弱)爆破、强支护、快封闭、勤测量、速反馈”的施工原则,在拱部超前小管棚注浆预固结围岩的保护下,采用三部台阶法进行施工。拱部预留核心土,周边采
14、用风镐开挖,核心土及中槽运用CAT320C挖掘机开挖。1、地形、地貌及地质情况本项目主要位于陕北黄土高原南部,地势总体为西北高、东南低,境内以少石多土的黄土台源、黄土梁峁沟壑为主。地势海拔一般在8001600之间,沟谷深切,深度一般在60110m。河谷区切割深度一般约3070m,岸坡较缓,沿线河谷总体较窄,以“U”型河谷为主。周河主流段较开阔,河区发育,宽谷处发育多级冲地。地质特征为鄂尔多斯盆地的陕斜坡带,构造稳定,地层平稳,雨雪稀少地质构造为黄土高原拱起地块区,为一长期稳定的地块。中生代以来,以大面积升降运动为主,并分别经受了不同方向的次级压应力的作用,形成了北东东及近南北方向的构造线及其相
15、应的其他构造的形迹,第三系以来,区内新构造运动受华北板块构造总体格局制约,以地块的震荡性不均匀升降为主导,区内地层平缓,构造简单,无大型剧烈的褶皱和断层,长期以来是一个比较稳定的地区。2、气象、水文情况项目区属暖温带半干旱大陆季风性气候,春季干旱多风、夏季旱涝相间,秋季温凉湿润,冬季寒冷干燥。冬长夏短,温差较大。项目区内年平均气温8.69.4,一月平均气温-5-8,极端最高气温3639.7,极端最低气温-22-25.4;七月份平均气温21.424.8。无霜期117186天,最大冻结深度8896cm,沿线各区县年降雨量一般介于450530mm之间,从南向北雨量有逐渐减少的趋势。春季干旱少雨,多大
16、风扬沙;夏秋季温湿多雨,降雨量占全年的60,且以暴雨、阵雨为主,历时短,量雨量大,易形成黄土滑坡、泥石流等自然灾害。本区为黄土台塬、黄土梁峁一沟区,地形破碎,降水主要以地表径流排泄。黄土区主要接受大气降水的补给,径流条件较好。公路沿线水系较发育,属黄河系洛河之延河流域。主要涉线水系有洛河支流杨青川、罗坪川、周河、延河支流、长尾河等。各河流均系降雨补给型河流,源近、途短,补给源不足。流量小且随季节性变化大。一般夏秋季节洪水期流量、含沙量稍大,峰高量小,暴涨暴落,过程较短。春冬旱季水量小,甚至断流。二、编制依据1、施工承包合同书;2、延安安塞经志丹至吴起高速公路路基桥隧工程施工招标文件;3、公路工
17、程技术标准 (JTGB01-2003);4、公路隧道施工技术规范 (JTJ041-2000);5、公路工程质量检验评定标准 (JTG F801-2004);6、公路工程施工安全技术规程 (JTJ076-95);7、公路环境保护设计规范 (JTJT006-98);8、建设施工安全检查标准 (中华人民共和国行业标准JGJ59-99);9、建设工程施工现场供用电安全规范 (GB 50194-93);10、施工现场临时用电安全技术规范 (JTJ46-2005);三、主要技术指标 公路等级:双向四车道高速公路; 地形类别:山岭区; 设计行车速度:80kmh; 设计荷载:公路-级; 地震烈度:级。四、施工
18、进度计划计划开工时间为:2009年12月5日计划结束时间为:2011年6月30日五、质量及安全目标1、质量管理目标:(1)分项工程一次验收合格率:100%;(2)单位工程交竣工验收优良率:100%;(3)重大工程质量责任事故:0案次。2、项目质量目标:合同段工程质量评分100分;分部工程质量评分98分;分项工程质量评分99分。3、安全管理目标:(1)杜绝工伤事故;(2)无中毒、火灾事故;(3)杜绝重大车辆交通事故,减少一般责任事故;(4)特种作业人员持合格证上岗率100%;(5)重大伤亡事故:0案次;(6)严重职业危害事故:0案次。4、环境管理目标:重大环境污染责任事故:0案次;施工噪音排放达
19、标,社区居民无投诉;控制施工扬尘、废物排放确保排污符合规定标准;保护植被,防止水土流失。六、工程主要施工方案 1、施工准备1)施工组织机构和人员配备项 目 经 理:侯 刚 项 目 总 工:常 伟质检负责人:张志强 试验负责人:李国栋测量负责人:党史炜 安全负责人:刘文庆现场工程师:宁飞、许世恒、肖涛、刘国涛 作业队长: 高 文管理人员:14人 钢 筋 工:14人开挖班:60人 立架班:54人喷锚班:32人 拌合站:6人砼操作工:8人 杂 工:15人2)材料采购及物资准备按施工方案要求备齐开挖机具、气体检测仪、钢材、通风机、水泵、照明及空压机等。并明确各种机具的安全使用规程。现场施工所用的砼由经
20、理部拌和场统一拌制运输。拌和站集中进料、集中检测控制,以保证集料及拌和质量的稳定。水泥、钢材、外加剂等其他材料由经理部统一进料,经检验符合国家现行技术标准规范要求后,可进至施工现场,并由现场监理工程师检验合格后方可进行下道工序的施工。3)主要机械设备:拌和楼JS1000型一套,挖机2台,发电机2台,钢筋调直机1台,切断机1台,电焊机20台,喷锚料车2台,出渣车4台,气腿式风枪34台,破碎锤2台,装载机3台,空压机5台,喷锚机10台。4)劳动力准备: 参加开挖、立拱架、喷锚作业的工人首选年轻力壮的男性青年,事先必须进行身体检查,凡患有精神病、高血压、心脏病、癫痫病、聋哑、恐高症及其他不宜井下作业
21、的人等不能参与施工。5)施工现场准备:场地平整,做好现场排水,并做到水通、电通、道路通。6)技术准备:熟悉隧道程施工图纸、说明及施工要求,以及完整的地质勘察报告书,以掌握施工区域各层土质的物理力学性质,掌子面岩石特征及埋深、地下水位分布情况。项目部组织机构框图项目经理设备科计划科财务科技术科安质科物资科测量队试验室项目副经理项目总工支部书记隧道队2、施工方法超前小管棚施工 (1) 工艺原理 在破碎松散岩体中超前钻孔,打入小导管并压注水泥浆液,浆液在注浆压力的作用下呈脉状快速渗入破碎松散岩体中,并将其中的空气、水分排出,使松散破碎体粘结形成具有一定强度和抗渗阻水能力的以水泥浆为骨架的固结体,从而
22、提高围岩的整体性、抗渗性和稳定性;使超前小管棚与固结体形成一个具有一定强度的壳体,在壳体的保护下进行开挖支护施工。 (2)小管棚及注浆设计 采用4.5m/根的50mm小导管布设在拱部,外插角57,环向间距40cm,纵向环距3m,即每施作一排小导管,开挖支护2.5m;压注1:1水泥浆液,采用425R普通硅酸盐水泥,水泥浆水灰比一般为0.51.0,注浆压力为0.51.0MPa,孔口设止浆塞。 (3)施工要点 小导管加工4.5m/根的50mm无缝钢管一端加工成尖锥形,距另一端30cm的位置开始至尖锥端之间按梅花型间距为7.5cm布设8mm的孔眼3排,以利于小导管推进和水泥浆液渗入破碎岩体。 小导管安
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