j路基边坡喷混植生施工作业指导书.doc
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1、大同至西安铁路客运专线七标段(路基工程施工作业指导书)大西铁路七标段路基工程喷混植生施工作业指导书1. 适用范围适用于大西铁路客运专线站前施工-7标段路基边坡喷混植生施工。2. 作业准备2.1内业技术准备2.1.1接到施工图后组织技术人员全熟悉核面对图纸,充分了解设计标准。2.1.2准备并熟悉路基绿色防护施工相关规范、规程、标准、技术条件、指南等。2.1.3编制施工安全保证措施,对施工人员进行技术交底工作。2.1.4对施工人员进行上岗前技术培训,考核合格后持证上岗。2.2外业技术准备核实喷播植草地段路基边坡地形地貌,修整坡面嵌补凹槽、坑洼。了解原材料供应情况,并结合喷播植草施工特点,编制满足设
2、计和质量要求的喷播植草施工组织计划。3. 技术要求3.1 边坡防护植物应选择适宜品种。3.2 施工前按设计提供的配合比进行室内试验,确定施工配合比。混凝土的配合比应保证混合料的抗压强度能达到设计要求。4. 施工程序与工艺流程4.1施工程序喷混植生施工程序为:清理边坡、打设锚杆、挂网施工、配制客土材料、喷混植生、养护管理。4.2工艺流程5. 施工要求5.1施工准备施工前对喷播防护段路基边坡进行核实,边坡地形地质应符合设计要求。喷播前喷播材料应符合设计图纸要求。5.2 施工工艺5.2.1 清理边坡将容易滑落、影响边坡稳定的岩石处理掉,使坡面尽可能平整以利于喷混植生施工,同时增加坡面绿化效果;对于光
3、滑岩面要通过挖掘横沟等措施进行加糙处理,以免客土下滑。5.2.2 打设锚杆锚杆为用直径20mm的HRB335级钢筋,筋长1.9m,锚固深1.8m,孔内灌注M30水泥砂浆。5.2.3 挂网施工网条采用2.6机编高镀锌铁丝网,网目尺寸812cm,其抗拉强度不低于380kPa,挂网幅边采用2.2铁丝绑扎联接。5.2.4 坡面设直径50mm软式透水管排水孔,矩形布置,间距3.0m,孔深0.7m,扭坡部位水平尺寸可作适当调整,孔位沿堑坡走向尽可能在一条线上。5.2.5 配制客土材料将粘土打碎过筛,然后将粘土、锯末、谷壳、水泥、肥料、植物生长剂、土壤稳定剂等充分混和,搅拌均匀。5.2.6 喷混植生选用专用
4、喷混植生机,设备就位后,调节输送泵压力、出风量,使混合料均匀喷射至坡面,自上而下分两次实施喷播,第一次喷播厚3cm,待客土稳定后(1020min)再喷播第二次至设计厚度,喷播时在岩性破碎、岩质坚硬坡段喷层厚度可适当增加。5.2.7 养护管理初期养护需加盖无纺布,3045d后待草苗长到一定高度时揭布;后期养护时若天气长期持续干旱则应适当予以浇水养护。6. 劳力组织6.1 劳动力组织方式:采用架子队组织模式。6.2施工人员应结合试验段确定的施工方案、机械、人员组合、工期要求进行合理配置。施工劳动人员配备表序号工作内容人数备注1清理边坡152打设锚杆8根据桩身大小3挂网施工44设直排水孔45配制客土
5、材料86喷混植生67养护管理67. 材料要求原材料应符合设计要求,设计未明确时应符合以下要求。1) 种子:BPR混和植被种子,按冷暖结合、草灌结合、四季常绿的原则进行配种。2) 客土:采用天然有机型培养土,由多种新型微生物菌群发酵而成,含有氮、磷、钾及各种微量元素、生长激素,pH值6.07.0,饱和容重0.50.6t/m3。3) 稳定剂:无污染粘结剂,采用高分子聚合物及天然植物加工而成,能将客土、养生材料、肥料、种子等紧密连接,形成一定厚度的喷播层,并与坡面粘 接在一起而不致下滑流失。4) 养生材料:采用木质纤维,增加连接的强度,使喷播层稳定性增强。5) 肥料:采用速效化肥及缓效有机肥,增加贫
6、瘠边坡肥力,提供植物生长所需营养。6) 水: 喷播用水,选择无污染水源,就近吸取。7) 金属网:网条采用2.6机编高镀锌铁丝网,网目尺寸812cm,其抗拉强度不低于380kPa,挂网幅边采用2.2铁丝绑扎联接。 8) 锚杆:挂镀锌网的锚杆采用直径20mm的HRB335级钢筋,筋长1.9m,锚固深1.8m,孔内灌注M30水泥砂浆。8. 设备机具配置喷混植生设备:喷混植生机若干台、普通卡车若干台、抽水泵若干台、发电机若干台、空压机若干台9. 质量控制及检验9.1质量控制9.1.1 喷混植生施工应符合设计要求,并符合铁路路基边坡绿色防护技术暂行规定的有关规定。9.1.2喷混植生工程施工应根据植物的特
7、性,适时种植,避免在暴雨季节、大风和高温条件下施工。9.1.3喷混植生播种前应进行种子发芽率试验,或植株移植试验,根据试验结果确定种植密度和种植时间,确保在雨季来临前形成一定防护能力。在防护未形成一定能力时,宜采取排水和覆盖等临时保护措施。9.1.4喷混植生应先将生长液与草籽按设计要求混合并搅拌均匀,采用喷播设备将其喷洒在已清理好的坡面上,喷洒应自上而下进行。9.1.5喷植材料随拌随喷,喷射厚度为810cm,喷播草籽含量每平方米不小于25g,水泥标号不低于PO42.5;护坡喷植后,20天内必须喷(洒)水养生,使喷植护坡始终具有足够水分,促使草籽发芽、生长。9.2质量检验9.2.1喷混植生覆盖率
8、、成活率应满足下表要求:序号项 目覆盖率(%)成活率(%)施工单位检查数量检验方法1一般地区植草防护土质路基边坡853条带尺量、计面积2石质路基边坡703条带尺量、计面积3种植藤本植物、灌木、乔木防护土质路基边坡803条带点数、统计计算4石质路基边坡703条带点数、统计计算5干旱地区植草防护土质路基边坡653条带尺量、计面积6种植藤本植物、灌木、乔木防护703条带点数、统计计算7寒冷地区植草防护土质路基边坡803条带尺量、计面积8石质路基边坡703条带尺量、计面积9种植藤本植物、灌木、乔木防护土质路基边坡753条带点数、统计计算110石质路基边坡703条带点数、统计计算注:检验点数以一条检验带
9、(从顶至底)为一点,带宽3m。9.2.2喷混植生固土网垫质量检验:固土网垫铺设允许偏差序号项目允许偏差1搭接宽度+30mm2上、下边埋入土深度不小于设计值3回转长度不小于设计值4固定钉长度不小于设计值5固定钉间距+50mm10. 安全及环保措施10.1作业安全措施10.1.1 施工区域应设警示标志,严禁非工作人员出入。10.1.2 施打锚杆时注意人身安全,小心伤人。10.1.3 施工中应对喷播机械设备进行定期检查、养护、维修。10.1.4 为保证施工安全,现场应有专人统一指挥,并设一名专职安全员负责现场的安全工作,坚持班前进行安全教育制度。10.1.5 改良土施工中,制定合理的作业程序和机械车
10、辆走行路线,现场设专人指挥、调度、并设立明显标志,防止相互干扰碰撞,机械作业要留有安全距离,确保协调、安全施工。10.2环保措施施工垃圾应按施工图规定地点妥善处理,不能破坏周边环境,造成有害影响。不得弃入河道、改变水流方向和加剧对河岸的冲刷;也不宜向江、河、湖泊、水库、沟渠弃渣。中铁三局集团公司大西铁路客运专线指挥部55(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 implemen
11、tation of comprehensive 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 mem
12、bers and Party leading cadres 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
13、two party rules of interpretation: 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 regulat
14、ions modified the main changes 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
15、cadres honest politics several 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, whi
16、ch reflects the unity of 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
17、 spirit of the fourth plenary 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 pro
18、mulgation and implementation 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 pr
19、ohibition, 52 are not allowed 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
20、regulations repeat and Criminal 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 implementa
21、tion, to strengthen the 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
22、and other countries laws 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 di
23、scipline for the leading 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 Par
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