cn侧平石施工工法.doc
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1、侧、平石施工工法1、 前言侧平石是设在路面边缘的界石,也称为路牙子或路缘石。它在路面上是区分车行道、人行道、绿地、隔离带和道路其他部分的界线,起到保障行人、车辆交通安全和保证路面边缘齐整的作用。侧石,是顶面高出路面的路缘石,有标定车行道范围和纵向引导排除路面水的作用;平石,是顶面与路面平齐的路缘石,有标定路面范围、整齐路容、保护路面边缘的作用。平石常与侧石联合设置铺筑路面,是城市道路最常见的设置方式。这里仅介绍花岗岩侧、平石。2、 工法特点与预制混凝土侧、平石相比,花岗岩侧、平石的质地、强度、承载力、裂缝及耐久性等诸多方面都优越于混凝土侧、平石。由于花岗岩侧、平石具有较强的承载力、足够的强度、
2、耐风化和抗撞击性能,大大地避免了在施工交付使用后常出现的重复补修的情况,从而减少了人力和物力的投入。3、 适用范围本工法适用于城市道路及市郊公路的施工。4、 工艺原理花岗岩侧、平石由预制厂加工制造,自卸汽车运输到施工现场后,再由叉车分批运输到不同的工作地点整齐堆放,然后使用工地自制运输工具(炮车)将侧、平石吊运到平基上进行砌筑。5、 施工工艺流程及操作要点5.1施工工艺流程施工测量放样 垫层铺筑及整平、压实 支模砼基础浇筑及养护 侧石砌筑 背后砼浇注支模 平石砌筑侧、平石勾缝、养护 背灰砌筑5.2操作要点 侧石下的路基与车行道底基层一同整型、碾压成型,以确保路基的整体性。5.2.1测量员进行侧
3、石内边线放线,打10m桩控制,曲线部分打5m桩控制。5.2.2放线后支模,要求支模前对模板进行清理,清除模板上的杂物,检查模板尺寸,要求模板稳固,质检员要及时进行尺寸量测。5.2.3砼基础C15砼采用现场搅拌机搅拌,车辆运输,人工浇筑振捣,成型要及时进行养护,养护方式采用塑料薄膜覆盖,洒水养护,养护期间应保持表层的湿润。5.2.4拆模时间根据天气情况,根据气温而定,当砼达到设计强度的30%时,即可拆模,在25气温以上,拆模时间介于36-24h。在15-25拆模时间约48h。5.2.5侧石安砌:1侧、平石应在水泥稳定碎石底基层铺设完成之后进行。2水稳施工完毕后,即可进行平石下C15砼垫层施工,砼
4、采用商品砼。3安砌侧石的控制桩,直线段桩距宜为10-15m,曲线段桩距宜为5-10m,路口处桩距宜为1-5m。根据施工设计图纸,按标准打出路边边线桩,然后标上侧石顶高程和路边线,并随时检查侧石底高程。4在砼基础上铺砂浆卧底,按边线位置和高程开始安砌侧石,再将路侧石沿线排列好,路侧石高低不一致的调整,低的用撬棍将其撬高,并在下面垫以砼或砂浆;高的可在顶面垫以木条用橡皮锤敲打牢固平稳,使线型直顺,弯度圆润,顶面平顺并符合设计高程。 5侧、平石应以干硬性砂浆铺筑,砂浆应饱满,厚度均匀。卧底水泥砂浆采用M7.5,勾缝水泥砂浆为M10,拌和砂浆用砂需过筛。侧石安砌要求平稳,缝宽均匀1cm。6每100m长
5、检查侧石的位置和侧石顶高程、直顺度合格后进行勾缝。勾缝要将砂浆填满填实缝隙后勾抹平整,并将缝边毛刺清扫干净。7侧石背后在打背灰后,及时用土填埋并夯打密实,以保护侧平石的稳固。5.2.6平石安砌:侧石砌筑完成,需要做平石的第二次平基,然后进行平石的安装,平石安砌时要求与侧石相同。5.3施工注意事项5.3.1侧平石在使用前应进行质量检查达到足够的强度,并应具有抗撞击、耐风化的性能,表面应平整,不应有脱皮现象。5.3.2侧石后背砼要支模浇筑,并还土夯实。还土夯实宽度不宜小于50cm,高度不宜小于15cm,压实度不得小于90%。回填时应注意不要影响侧石的直顺度和稳固性。5.3.3侧平石施工时,平石和侧
6、石错缝应对中相接,要求紧缝排砌,缝宽为1cm,平石勾平缝,侧石勾凹缝,深度0.5cm。平石与路面接边线要求保证顺直。5.3.4砌筑完毕应保证路侧石线条直顺、曲线圆滑,无折角现象。5.3.5施工完的段落要进行成品防护工作。5.3.6花岗石安砌属外观工程,过程控制中可提高允许误差标准。6、 材料设备6.1材料侧、平石采用花岗岩制作,对砌筑使用的砂子、水泥、碎石均需按批量送检,试验合格后方可使用。6.2施工设备序号设备名称设备型号单位数量用途1叉车CPC30辆1侧平石运输2炮车自制设备辆2侧平石吊装3砼搅拌机JZ350台1砼搅拌4石材切割机21E-KP02-110台1侧平石切割7、 质量控制7.1工
7、程质量控制标准花岗岩侧、平石施工质量执行中华人民共和国行业标准城镇道路工程施工与质量验收规范CJJ1-2008,允许偏差按表7.1执行。花岗岩侧、平石质量标准及容许偏差 表7.1序号项目允许偏差(mm)检验频率检验方法范围点数1花岗岩侧、平石外观表面颜色一致,应平整,无风化、棱角整齐目测2外形尺寸长4用钢尺量宽1厚(高)23对角线长度差4用钢尺量4外露面平整度2用直尺量5饱水极限抗压强度100Mpa检验厂家合格证6磨耗率洛杉矶法307磨耗率狄法尔法5平基中线每侧宽度0+1010m2挂中心线用尺量高程0-1510m1用水准仪测量厚度设计值10m1用尺量强度满足规范要求200m1试压试块侧石安砌直
8、顺度10100m1用20米线和钢尺量相邻块高差320m1用钢板尺和塞尺量缝宽320m1用钢尺量侧石顶面高程1020m1用水准仪测量7.2质量保证措施7.2.1测量放线时要按设计位置将侧石边线放出钉桩,以保证侧石的位置准确性。7.2.2基层压实后,表面必须平整,超大尺寸颗粒要剔除,确保高程符合施工质量标准要求。7.2.3安砌侧平石必须稳固,做到顶面平整,缝宽均匀,无错牙,线条直顺美观,平石不得阻水。7.2.4侧平石勾缝前要检查修理,凡几何尺寸不符合要求时必须修整,勾缝后要清理侧平石表面,做到外观整洁。7.2.5侧石后背砼要支模浇筑,回填密实,保证侧石稳固,注意洒水养生。8、安全措施81开工前,对
9、全体人员进行安全生产教育,并设专职安全员进行施工安全教育。82机械操作手要严格执行操作规程,防止人工在使用机械不当时出现的碰撞,确保车辆的运行安全。83避免在炮车吊装或人工搬运侧、平石时可能造成的砸伤现象。84做好劳保工作,配齐劳保用品,确保职工的人身安全。85及时进行检查,消除隐患,防患于未然。86建立完善的施工安全保证体系,加强施工作业中的安全检查。9 环保措施91施工现场要注意文明施工,不准乱扔杂物,机械加油时,避免油料污染路面。92设备、车辆选用优质油料以减少空气污染。93采取适时洒水等措施控制扬尘污染。94侧平石砌筑完毕,要及时将剩余的砂浆清理掉,做到工完场清。95城市道路改造时,要
10、对原有的花池进行保护,杜绝各种杂物污土的污染。96废料选择适当方式处理,不得污染环境。10、 效益分析在做好施工廉政建设的情况下,要保证工程建设的高效优质,保证建设资金的安全和有效使用以及提高施工企业的经济,花岗岩侧、平石具有广泛的应用价值,在实际施工中,经济效益较为突出。11、 应用实例近几年来,平阳路道路拓宽改造工程、胜利街拓宽改造工程以及恒山路道路改造等多项工程,都分别采用了花岗岩侧、平石砌筑,在多年的施工实践中,花岗岩侧、平石的力学性能都远远胜于砼预制的侧、平石,打造出的精品工程不仅路容美观时尚,而且寿命耐久,在保证路面使用品质上取得了满意的效果。(英文版 ) Two regulati
11、ons promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of major initiat
12、ives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members 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 ga
13、uge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face 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
14、fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations 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 nece
15、ssity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading 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 wisdo
16、m of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which 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 refle
17、ct 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 plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the partys eight
18、een years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation 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 stri
19、ctly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 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 excessiv
20、e, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary 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 nee
21、dle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, 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 co
22、mprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law 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
23、 authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline 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 r
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