冷再生底基层开工报告（一）(共13页).doc

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1、精选优质文档-倾情为你奉上 德州市公路工程 （陵禹路k0+000-K7+156） 冷再生底基层开工报告 山东华野路桥工程有限公司 德州项目部 二零一一年九月二十八日分项工程开工申请批复单承包单位：山东华野路桥工程有限公司 合同号： 监理单位：山东省德州市交通工程监理公司 编 号： 上一步工作检验结果 ：我单位已做好原路面自检工作，经检验依据规范标准所检各项指标结果均满足规范及设计要求。工程项目：冷再生底基层桩号：K0+000-K7+141建议开工日期：2011年9月28日计划竣工日期：2011年10月7日此项工程负责人： 承包人意见：我单位已做好原路面的自检并经过监理工程师的验收，所检结果均能

2、满足设计及规范要求，恳请监理工程师准予下一道工序的开工。承包人：驻地工程师：附件：1、 现场及准备情况报告。2、 施工技术方案。3、 材料实验报告。进 厂 设 备 报 验 单承包单位：山东华野路桥工程有限公司 合同号: 监理单位：山东省德州市交通工程监理公司 编 号： 致（道路监理工程师）： 先生： 下列施工设备已按合同规定进场，请查验签证。以下设备用于陵县道路改造工程中使用。承包人： 2011年9月28日设备名称规格型号数 量进场日期技术状况拟用何处备注路面冷再生机22011.9.11.良好铣刨路面振动压路机宝马32011.9.11.良好碾压胶轮压路机12011.9.11.良好碾压洒水车解

3、放32011.9.11良好清扫刮平机PY18022011.9.11.良好整平装载机YZ5022011.9.11良好推土机D8512011.9.11良好整平稳压致（承包人） 以上设备，均已到位且处于良好的工作状态，性能、数量能满足施工的要求。道路/结构监理工程师： 2011年 9 月 27 日路线中桩放样图(X.Y坐标)后视控制置仪器 转角c路线中心一、道路概况：原路面已做过路况调查,自检完毕、技术交接完成，机械设备全部到位并调试完毕，材料充足。配合比已报批，具备冷再生底基层试验段开工条件。二、试验段位置：K0+000-K0+700三、试验段时间：2011年9月28日四、试验段目的：1 验证配合

4、比组成设计的准确性（试验）。2 确定标准的施工方法（施工工艺）。3 检查水泥水泥剂量、含水量控制是否有效准确（试验）。4 验证冷再生料的摊铺方法和适用机械（施工工艺）。5 检查验证压实机械的组合、压实的顺序、速度和压实遍数（施工工艺、试验）。6 为控制水泥的延迟时间，确定每一作业段的合适长度（施工工艺）。7 搜集验证有关数据，便于指导以后大面积生产（综合计算）。五、人员配置情况：劳动力28人，其中：清扫5人、冷再生机6人、局部小修6人、冷再生机辅助工2人、覆盖养生8人、平整度1人、指挥车辆2人；施工负责人：王刚技术负责人：张强质检员： 谢传秀测量员：刘玉博施工员：占茂鑫材料员：谢新元前场试验员

5、： 谢传秀后场试验员：刘 杰机械负责人：刘兴六、机械配备：路面冷再生机：2套LSS218A振动压路机：3台YZ18TJ振动压路机 1台10T洒水车 3台刮平机2台装载机2台推土机1台七、施工工艺7.1 水泥稳定就地冷再生的工艺流程宜按图7.1的顺序进行7.2 整个施工及养护过程中，应对再生路段（路幅）封闭交通，各路口设置警示牌，提醒司机及行人。封闭交通施工放样准备原道路准备新加料冷再生机组就位摆放和撒布水泥冷再生机铣刨与拌和碾压整形接缝和调头处的处理养生图7.1 水泥稳定就地冷再生工艺流程7.3 施工放样7.3.1 在再生施工之前，应在道路的两侧放置一系列的标桩（杆）作为基线，用来恢复道路的中

6、心线。 7.3.2 标桩（杆）的间距，曲线距离不应超过20米，直线距离不应超过40米。7.4 准备原道路7.4.1 清除原道路表面（包括不需要再生的相临行车道和路肩）的石块、垃圾、杂草等杂物和积水，并清理边线。7.4.2 清除再生路段上存在的井盖等类似结构物。7.4.3 对原路的翻浆、车辙、沉陷、波浪、坑槽等病害进行处理，使原路基本平整。 7.5 准备新水泥7.5.1 计算水泥用量：人工摆放和撒布水泥，应根据水泥剂量，计算每一平方米水泥稳定层需要的水泥用量，并确定水泥摆放的纵横间距。 7.5.2 将水泥均匀地撒布在旧路面上，并检查水泥撒布是否均匀。 7.6 冷再生机组就位 7.6.1 使用推杆

7、连接再生机组，并连接所有与再生机相连的管道。7.6.2 检查再生机操作人员是否已将所有与稳定剂添加量有关的数据输入计算机。7.6.3 人工摆放和撒布水泥。7.6.4 排除系统中的所有空气并确保所有阀门均处于全开度位置。7.6.5 检查再生路段内的导向标志，确保导向标志明确。7.6.6 对再生施工中所需要的其它机械设备进行全面的检查。 7.7 摆放和撒布水泥7.7.1 按本章第7.5条计算出的每方格水泥用量，在旧路上做好安放标记。7.7.2 应将水泥当日直接运送到撒布路段，卸在做标记的地点，并检查有无遗漏和多余。7.7.3 将水泥均匀摊开，并注意使每袋水泥的撒布面积相等。水泥撒布完后，表面应没有

8、空白位置，也没有水泥过分集中的地点。 7.8 冷再生机铣刨与拌和7.8.1 冷再生机推动水车在原路面上行进。7.8.2 冷再生机行进速度应根据路面损坏状况和再生深度进行调整，一般为6m/min12m/min，使得铣刨后料的级配波动范围不大。网裂严重地段应降低再生机组行进速度，提高铣刨转子转速。7.8.3 再生机后应有专人跟随，随时检查再生深度、含水量，并配合再生机操作员进行调整。7.8.4 施工中再生深度的检查以相邻已经再生或原路面为标准，用钢纤刺入土中，测量其刺入深度，看其深度是否合格。7.8.5 应在作业面边缘固定导向线以帮助操作者。7.8.6 若进行多刀施工时，应时刻注意搭接的宽度，保证

9、搭接宽度。7.8.7 再生机后宜安排45人处理边线和清理混合料中的杂质以及每刀起始位置的余料，以防止影响纵向接缝、横向接缝、平整度和再生材料的密实性。7.8.8 带有熨平板的再生机，应经常检查熨平板后混合料的厚度。7.8.9 在施工过程中，对混合料的级配、再生深度、水（或水泥稀浆）的喷入量有任何疑问时，应停止施工，等问题解决后再继续施工。7.8.10 每次再生的长度以保证后续作业能正常进行为宜，应认真组织施工，使再生的长度尽可能长些，以减少横向接缝。一次（不停机）再生的长度一般为150m250m。7.8.11 每段再生结束后，应检查铣刨毂的刀架、刀头，发现损坏立即更换。 7.9. 碾压整形7.

10、9.1 根据路宽、压路机的轮宽和轮距的不同，制订碾压方案，应使各部分碾压到的次数尽量相同，路面的两侧应多压23遍。7.9.2 使用轮胎式再生机时，在整形之前，必须首先压实轮迹间松散的材 料。7.9.3 在再生机后应紧跟一台钢轮振动压路机或凸块式振动压路机进行初压，采用高幅低频进行压实，压实遍数应足以保证再生层底部2/3厚度范围内的压实度达到规定要求。钢轮压路机的工作速度不得超过3km/h。7.9.4 在初压完成后，应立即用平地机整形。在直线段，平地机由两侧向路中心进行刮平；在平曲线段，平地机由内侧向外侧进行刮平。必要时，再返回刮一遍。7.9.5 对于局部低洼处，应用齿耙将其表层5cm以上耙松，

11、并用新拌的混合料进行找平。7.9.6 整形时应将高处料直接刮出路外，不应形成薄层贴补现象。7.9.7 在整形过程中，严禁任何车辆通行，并保持无明显的粗细集料离析现象。7.9.8 整形后，当混合料的含水量为最佳含水量时，应立即用光轮压路机先以高幅低频振动模式后以低幅高频模式进行压实。直线和不设超高的平曲线段，由路肩向路中心碾时，应重叠1/2轮宽，后轮必须超过两段的接缝处，后轮压完路面全宽时，即为一遍。一般需碾压68遍。压路机的碾压速度，头两遍以采用1.51.7km/h为宜，以后宜采用2.02.5km/h。7.9.9 严禁压路机在已完成的或正在碾压的路段上调头或急刹车，应保证再生层表面不受破坏。7

12、.9.10 碾压过程中，再生层的表面应始终保持湿润，如水分蒸发过快，应及时补撒少量的水，但严禁大量洒水碾压。7.9.11 碾压过程中，如有“弹簧”、松散、起皮等现象，应及时翻开重新拌和（加适量的水泥）或用其他方法处理，使其达到质量要求。7.9.12 经过拌和、整形的水泥稳定就地冷再生层，宜在水泥初凝前并应在试验确定的延迟时间内完成碾压，并达到要求的密实度，同时没有明显的轮迹。7.9.13 在碾压结束之前，用平地机再终平一次，使其纵向顺适，路拱和超高符合设计要求。终平应仔细进行，必须将局部高出部分刮除并扫出路外；对于局部低洼之处，不再进行找补，可留待铺筑沥青面层时处理。 7.10 接缝和调头处的

13、处理7.10.1 纵向接缝的处理（1）道路宽度小于7m，纵向重叠较多时，不宜半幅施工，应考虑全幅施工，以减少重叠量，提高施工效率。（2）一般重叠宽度为50-150mm。（3）路面材料越厚，材料粒度越粗，重叠量越大。（4）相邻两次作业间隔12h以上时，重叠量应增加。（5）在纵向接缝上，根据已建再生层的完成时间，改变水泥稀浆（或水）的喷入量。（6）纵向接缝的位置应尽量避开慢行、重型车辆的轮迹。7.10.2 横向接缝的处理（1） 应对所形成的横向接缝认真处理，施工中应尽量减少停机现象。（2） 停机超过水泥初凝时间，再生机再次施工时，必须将整个再生机后至再生过的路段1.5m的距离，并重新撒布水泥。7.

14、10.3 调头处的处理如机械必须到已压成的水泥稳定就地冷再生层上调头，应采取措施保护调头作业段。一般可在准备用于调头的约810m长的稳定土上，先覆盖一张厚塑料布或油毡纸，然后铺上约10cm厚的土、砂或砂砾。八、养生及交通管制8.1 水泥稳定就地冷再生层宜养生7d后铺筑上层混合料。如果上层混合料仍为无机结合料稳定类材料时，宜在下层表面撒少量水泥或水泥浆。8.2 每一段碾压完成并经压实度检查合格后，应立即开始养生。8.3 宜采用覆盖（吸水土工布或草帘等）进行养生。养生结束后，必须将覆盖物清除干净。8.4 养生期不宜少于7d。8.5在养生期间未采用覆盖措施的水泥稳定就地冷再生层上，除洒水车外，应封闭

15、交通。不能封闭交通时，应限制重车通行，其他车辆的车速不应超过30km/h。九、质量控制9.1 材料应满足混合料组成设计中相关要求。9.2 严格按照施工工艺要求认真施工。9.3 如发生未预料的特殊情况，可能会影响工程质量的应立即停工，待问题解决后再继续施工。9.4 质量控制标准应符合表9.1要求，评定标准应符合表9.2要求，表中允许偏差均指与设计值之差。9.5 包括再生层在内的其他检测项目应符合公路工程质量检验评定标准（JTG F80/1-2004）中相关规定。9.6 碾压合格后应立即覆盖或洒水养生，养生期应符合指南要求。 表 9.1 质量控制的项目、频度和质量标准项次检查项目规定值或允许偏差检

16、查方法频率基层底基层二级及以下公路一级公路二级及以下公路1集料压碎值不超过规定值不超过规定值据观察，异常时随时试验2水泥撒布量(m2)（1）符合设计要求（2）符合设计要求（2）尺量（3）每200m每车道测5点3再生机行进速度与转子速度(m/min)以试验段结果为准适当调整以试验段结果为准适当调整从仪表读取每200m每车道一次4再生深度(cm)111开挖（或以钢纤刺入）、尺量下刀、收刀两侧；每200m每车道开挖一点；每50m每车道尺量一点5再生混合料级配符合设计要求符合设计要求不加水泥铣刨烘干后筛分每2000m2一次6水泥剂量不小于设计值-1.0%不小于设计值-1.0%滴定法或用直读式测钙仪试验

17、每20002一次，至少6个样品7含水量符合规定符合规定随时观察，异常时随时试验8拌和均匀性无灰条、灰团、色泽均匀，无离析现象无灰条、灰团、色泽均匀，无离析现象随时观察表 9.2 质量检验允许偏差项次检查项目规定值或允许偏差检查方法频率基层底基层二级及以下公路一级公路二级及以下公路1压实度（%）代表值979695规范方法（4）每200m每车道2处极值9393922平整度（mm）1212153m直尺每200m测2处10尺3纵断高程(mm)+5，-15+5，-15+5，-20水准仪每200m测4个断面4宽度(mm)符合设计要求符合设计要求尺量每200m测4个断面5厚度(mm)代表值-10-10-12

18、规范方法（5）每200m每车道1点合格值-20-25-306横坡(%)0.50.30.5水准仪每200m测4个断面7强度(MPa)符合设计要求符合设计要求规范方法（6）注：（1）水泥采用人工撒布或撒布车添加时，检验此项，使用水泥稀浆车时，应检验稀浆车内水泥喷入量。撒布量指一袋水泥或每50kg水泥均匀撒布的面积，不应小于由设计所确定的撒布量。（2）由混合料组成设计确定的水泥剂量计算得到的水泥撒布面积。（3）由尺量确定水泥一定质量水泥撒布面积。（4）公路工程质量检验评定标准JTG F80/1-2004附录B方法。（5）公路工程质量检验评定标准JTG F80/1-2004附录H方法。（6）公路工程质

19、量检验评定标准JTG F80/1-2004附录G方法。 English is the most widely spoken language in the history of our planet, used in some way by at least one out of every seven human beings around the globe. Half of the worlds books are written in English, and the majority of international telephone calls are made in Engli

20、sh. English is the language of over sixty percent of the worlds radio programs. More than seventy percent of international mail is written and addressed in English, and eighty percent of all computer text is stored in English. English has acquired the largest vocabulary of all the worlds languages,

21、perhaps as many as two million words, and has generated one of the noblest bodies of literature in the annals of the human it is now time to face the fact that English is a crazy language - the most lunatic and loopy and of all languages. In the crazy English language, the blackbird hen is brown, bl

22、ackboards can be green or blue, and blackberries are green and then red before they are ripe. Even if blackberries were really black and blueberries really blue, what are strawberries, cranberries, huckleberries, raspberries, and gooseberries supposed to look add to this insanity there is no butter

23、in buttermilk, no egg in eggplant, no grape in grapefruit, no bread in shortbread, neither worms nor wood in wormwood, neither mush nor room in mushroom, neither pine nor apple in pineapple, neither peas nor nuts in peanuts, and no ham in a hamburger. (In fact, if somebody invented a sandwich consis

24、ting of a ham patty in a bun, we would have a hard time finding a name for it.)To make matters worse, English muffins werent invented in England, fries in France, or Danish pastries in Denmark. And we discover even more culinary madness in the that sweetmeat is made from fruit, while sweetbread, whi

25、ch isnt sweet, is made from this unreliable English tongue, greyhounds arent always grey (or gray); panda bears and koala bears arent bears (theyre marsupials); a woodchuck is a groundhog, which is not a hog; a horned toad is a lizard; glowworms are fireflies, but fireflies are not flies (theyre bee

26、tles); ladybugs and lightning bugs are also beetles (and to, a significant proportion of ladybugs must be male); a guinea pig is neither a pig nor from Guinea (its a South American rodent); and a titmouse is neither is like the air we breathe. Its invisible, inescapable, indispensable, and we take i

27、t for granted. But, when we take the time to step back and listen to the sounds that escape from the holes in peoples faces and to ex- the paradoxes and vagaries of English, we find that hot dogs can be cold, darkrooms can be lit, homework can be done in school, nightmares can take place in broad da

28、ylight while morning sickness and daydreaming can take place at night, tomboys are girls and midwives can be men, hours - especially happy hours and rush hours - often last longer than sixty minutes, quick- sand works very slowly, boxing rings are square, silverware and glasses can be made of plasti

29、c and tablecloths of paper, most are dialed by being punched (or pushed?), and most bathrooms dont have any baths in them. In fact, a dog can go to the bathroom under a tree - no bath, no room; its still going to the bathroom. And doesnt it seem a little bizarre that we go to the bathroom in order t

30、o go to the is it that a woman can man a station but as man cant woman one, that a man can father a movement but a woman cant mother one, and that a king rules a kingdom but a queen doesnt rule a? How did all those Renaissance men reproduce when there dont seem to have been any Renaissance writer is

31、 someone who writes, and a stinger is something that stings. But fingers dont grocers dont, haberdashers dont, hammers dont ham, and humdingers dont the plural of tooth is teeth , shouldnt the plural of booth be ? One goose, two geese - so one moose, two One index, two indices - one Kleenex, two If

32、people ring a bell today and rang a bell yesterday, why dont we say that they a ball? If they wrote a letter, perhaps they also their tongue. If the teacher taught, why isnt it also true that the preacher? Why is it that the sun shone yesterday while I shined my shoes, that I treaded water and then

33、trod on the beach, and that I flew out to see a World Series game in which my favorite player flied we conceive a conception and receive at a reception, why dont we grieve a and believe a? If a horsehair mat is made from the hair of horses and a camels hair brush from the hair of camels, from what i

34、s a mohair coat made? If adults commit adultery, do infants commit infantry? If olive oil is made from olives, what do they make baby oil from? If a vegetarian eats vegetables, what does a humanitarian eat? (And Im beginning to worry about those authoritarians.)And if pro and con are opposites, is c

35、ongress the opposite of you have to believe that all English speakers should be committed to an asylum for the verbally insane. In what other language do people drive in a parkway and park in a driveway? In what other language do people recite at a play and play at a recital? In what other language

36、do privates eat in the general mess and generals eat in the private mess? In what other language do people ship by truck and send cargo by ship? In what other language can your nose run and your feet can a slim chance and a fat chance be the same and a bad licking and a good licking be the same, whi

37、le a wise man and a wise guy are opposites? How can sharp speech and blunt speech be the same and quite a lot and quite a few the same, while overlook and oversee are opposites? How can the weather be hot as hell one day and cold as hell the next? How can the expressions Whats going on? and Whats co

38、ming off? mean exactly the samton and unbutton and tie and untie are opposites, why are loosen and unloosen and ravel and unravel he same? If bad is the opposite of good, hard the opposite of soft, and up the opposite of down, why are badly and goodly, hardly and softy, and upright and downright not

39、 opposing pairs? If harmless actions are the opposite of harmful why are shameful and shameless behavior the same and pricey objects less expensive than priceless appropriate and inappropriate remarks and passable and impassable mountain trails are opposites, why are flammable and inflammable materi

40、als, heritable and inheritable property, and passive and impassive people the same and valuable objects less treasured than invaluable ones? If uplift is the same as lift up, why are upset and set up opposite in meaning? Why are pertinent and impertinent, canny and uncanny, and famous and infamous n

41、either opposites nor the same? How can raise and raze and reckless and be opposites when each pair contains the same is it that when the sun or the moon or the stars are out, they are visible, but when the lights are out, they are invisible; that when I clip a coupon from a newspaper I separate it,

42、but when I clip a coupon to a newspaper, I fasten it; and that when I wind up my watch, I start it, but when I wind up this essay, I shall end is a crazy can expressions like Im mad about my flat, No football coaches allowed, Ill come by in the morning and knock you up, and Keep your pecker up conve

43、y such different messages in two countries that purport to speak the same can it be easier to assent than to dissent but harder to ascend than to descend? Why it is that a man with hair on his head has more hair than a man with hairs on his head; that if you decide to be bad forever, you choose to be bad for good; and that if you choose to wear only your left shoe, then your left one is right and your right one is left? Right?专心-专注-专业