《r石灰粉煤灰稳定土试验段开工报告.doc》由会员分享，可在线阅读，更多相关《r石灰粉煤灰稳定土试验段开工报告.doc（13页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、【精品文档】如有侵权，请联系网站删除，仅供学习与交流r石灰粉煤灰稳定土试验段开工报告.精品文档.邯郸至大名（冀鲁界）高速公路S1标段K10+200-K10+350段石灰粉煤灰稳定土试验段施工方案河北广通路桥工程有限公司邯郸至大名高速公路S1标合同项目经理部K10+200-K10+350段石灰粉煤灰稳定土试验段施工方案一、工程概况 邯大高速公路S1标段起讫桩号为K0+000K10+350，路线全长为10.35公里，为高速公路标准。整体式路基宽34.5米，双向六车道，其中单向行车道宽33.75米，中央带宽4.5米（含中央分隔带宽3米和两侧路缘带宽各0.75米），硬路肩宽3米，土路肩宽0.75米。路
2、面的横坡度为2%，土路肩的横坡度为3%，路面结构形式为4厘米细粒式改性沥青混凝土，6厘米中粒式改性沥青混凝土，8（12）厘米沥青混凝土（沥青碎石），18（20）厘米水泥稳定级配碎石，18（20）厘米水泥稳定级配碎石，20厘米石灰粉煤灰稳定土。（括号内为邯郸-大名方向数据）1、石灰粉煤灰稳定土底基层概况：按照“预防为主、先导试点”的指导方针，在正式开工前，经过监理工程师的批准，在验收合格的路基上，试拌一段长为150米的底基层试验路段。考虑到路面设有中央分隔带，施工时计划进行半幅分工施工，底基层试验段桩号拟定为K10+200-K10+350左幅。通过做室内试验拟定的配合比为白灰:粉煤灰:土=10:
3、20:70，最大干密度为1.604g/cm3，最佳含水量为17.5%，该段底基层的设计厚度为20cm，设计宽度为18.2米。石灰粉煤灰稳定土底基层施工采用路拌法，稳定土拌和机拌和，平地机整平，压路机碾压成型。2、石灰稳定土底基层试验段施工技术方案编制依据：公路路面基层施工技术规范 JTJ034-2000公路工程质量检验评定标准 JTGF80/1-2004 二、底基层试验段目的试验段目的是验证配合比设计和施工工艺是否合格，起指导施工的作用。试验段的目的有：1、根据各种机械的施工能力相匹配的原则，确定适宜的施工机械，按生产能力决定机械数量与组合方式，压实机械的型号与组合，压实的遍数与方法。2、通过
4、试拌决定（1）拌和机的操作方式：如前进速度、拌和深度、拌和遍数等。（2）验证石灰、粉煤灰稳定土的配合比设计。3、通过试铺确定（1）铺土前后的含水量,铺灰、铺土的宽度与厚度；（2）土的松铺系数；（3）拌和机械、运输及摊铺机械之间的合理组合；（4）施工人员的配合问题。4、确定每天的施工产量及作业段的长度，修订施工组织计划。5、全面检查材料及施工质量是否符合要求。6、确定施工组织及管理体系。三、试验段施工组织管理及部署1、人员组织项目部专门成立了强有力的组织管理机构和质量保证体系，负责底基层试验段的施工。针对各岗位人员，在材料保障、设备保障、技术保障等方面都做了精心安排。同时加强施工现场管理，严格过
5、程控制，每一道工序都落实到责任人，施工负责人直接对铺土与铺灰的厚度、宽度跟踪检测。（1）项目经理部：设项目经理1人，副经理1人，总工1人。下设生产部、机料部、试验室、质检部四个职能部门对全线的施工生产统一管理、统一协调。各职能部门负责人及主要技术骨干均由初级以上职称的专业人员担任。 （2）石灰料场（后场）：设站长1人，材料员3人，试验人员2人。（3）底基层作业队（前场）：设队长1人，技术管理人员5人，试验人员1人，测量人员2人，辅助工人20人。四、主要材料组织：1、试验段所用的材料采用底基层二灰稳定土配合比设计用料，其规格、等级、质量等保持一致。并经自检、监理抽检合格后，方可用于试验段。2、土
6、：采用K11土场的土，土的塑性指数在12-20之间，有机质含量10%，硫酸盐含量0.8%。3、石灰：采用武安生产的石灰，该料厂石灰等级应符合规范（JTJ034-2000）III级以上生石灰或消石灰的技术指标。严格按业主及监理规定的频率进行检验，经检测满足底基层材料质量技术要求。4、粉煤灰：粉煤灰中SiO2、Al2O3和Fe2O3的总含量应大于70%，粉煤灰的烧失量不应超过20%。 五、底基层试验段的试验检测：1、原材料的质量检查：包括土、石灰、粉煤灰。2、混合料的质量检查：混合料拌和均匀性、灰剂量、压实度。3、底基层试验段现场质量检查：松铺厚度、碾压遍数、摊铺的均匀性。 六、质量控制方法 我部
7、坚持以质量保进度，以进度保效益的原则对本项目制定了以下质量保证措施： （1）复核施工图纸，学习规范标准及施工技术交底书、业主及总监办和驻地办下发的有关文件。 （2）严格把好原材料质量关。坚持从源头抓起，对不合格的材料，不准运进施工现场；白灰的存放现场设有良好的排水系统，避免材料被污染。采集土前,将土场表面的树木、草皮和杂土清除干净，筛除土中的超尺寸颗粒。土场的取土深度初步定在地面下1.5米处，杜绝分层采集，更不允许将不合格的土采集在一起。粉煤灰用马头电厂的粉煤灰，含有杂质的粉煤灰杜绝使用。（3）将各工序进行细化，明确分工、责任到人，做好技术准备工作和机械检测调试工作。（4）针对施工重点、关键工
8、序（如摊铺、拌和、碾压等）进行分析，制定重点工序施工措施，做好充分准备工作。（5）检查与验收：在施工全过程中，前道工序必须通过报验并经过监理工程师的签证认可后方可进行后道工序的施工，包括原材料的报验、路基的验收认可、生产配合比的检验认可、工程外观几何尺寸和厚度、压实度的检验认可等。 七、施工方案及工艺流程 （一）、施工方案1）清理路基表面二灰稳定土底基层采用路拌法施工。施工前首先对路基顶面进行全面检测，对局部坑洼处进行修复、整平、碾压；清理场地，把路基表面的杂物、虚土清理干净，为施工的开展提供一个良好的工作场所；2）测量放样在路基上恢复中线，每20米一桩，在路肩的两侧打上护桩，护桩上标明施工桩
9、号。测定路床顶标高，根据标高备土。备土前洒水，保持表面湿润。3）备土 按照每平方米的松土用量及每车的运量（每平方米的松土用量为1*1.604*0.2*0.7*0.96/1.25=0.172 m3，每延米合计自然方0.172*18.2=3.13 m3），计算出每车的摊铺面积，然后在已完工检验的路基上，用白灰打出灰线方格，将土整齐地卸至方格内。用推土机把土摊开，并根据松铺厚度确定的标高点用平地机整平(根据以往施工经验，排压后的素土按18cm控制，以后施工根据试验段情况适当调整)，如土的含水量小时， 应及时洒水。由每延米松土用量计算的该段土方用量为469.6m，折合厚度为17.2cm。摊铺土的表面要
10、求平整，并有2%的横坡度,每20米一断面检测土的松铺厚度，查看是否达到预定厚度,厚度达不到要求的进行修整。4）备粉煤灰： 由汽车运送粉煤灰到施工路段，并按照每延米的用灰量把粉煤灰码成灰带每延米用量计算方法如下：(1.60418.20.20.20.960.865=1.30m3)，根据实际施工需要码成两条灰带，每横断面尺寸0.64m2，然后把粉煤灰按所需宽度采用人工均匀散开，如粉煤灰含水量小时适当洒水。由每延米用量计算的该段粉煤灰用量为194m，折合厚度为7.1cm。 5）初拌 用稳定土拌和机拌和一遍，然后排压，并按松铺厚度确定的标高，用平地机整平(据以往施工经验，松铺厚度按20 cm控制，以后施
11、工根据试验段情况适当调整)，并用振动式压路机静压一遍，洒水车洒水一遍。 6）备石灰：用自缷车拉运石灰，按每延米用灰量把石灰码成灰带，人工摊铺，每延米用量计算方法如下：(1.60418.20.20.10.960.566=0.99 m3)，由每延米用量计算得白灰用量为148.5m，折合厚度为5.4cm。根据实际施工需要码成两条灰带，然后把石灰按所需宽度均匀散开，宽度和散粉煤灰的宽度相同。并视其含水量适当洒水，含水量应高于最佳含水量1-2个百分点，再用拌和机拌和。 7）拌和 1、采用专用的稳定土拌和机进行拌和。 2、拌和过程中设专人跟随拌和机检测拌和深度，发现有偏差及时与拌和机操作员进行沟通调整，拌
12、和的深度控制在路基表面下1-2cm，以利于上下层粘结。 3、测定混合料的松铺系数：（1）上土前每20米一断面，每断面三点测量标高，并存下详细记录。（2）土铺完整平后及石灰土拌和后，分别在以上断面处测量标高，作祥细记录。（3）石灰土碾压成型后，在以上同一断面处测量标高，作详细记录。 （4）待碾压结束后再次测量各个断面的高程，根据5次测出的数据算出虚铺厚度及压实厚度，确定合理的松铺系数。（5）松铺厚度由测量人员通过测试标高来控制4、摊铺后的混合料未压实前，施工人员尽量少进入踩踏。8）压实 碾压初定的顺序与方法为先用推土机稳压一遍，然后改用振动压路机低振两遍，高振两遍，再用压路机静压一遍，碾压时按照
13、从从低到高的原则碾压，碾压时的速度前两遍控制在1.5-1.7km/h，之后采用2.0-2.5km/h。在压实后压实度应96%，表面平整，无轮迹或隆起，断面准确，横坡符合设计及规范要求。9）养生碾压成型后视天气温度，洒水养生至下层施工为止，养生时始终使表面保持湿润，在养生期间除洒水车外，禁止一切车辆通行，并设专人看管。(二)、施工工艺流程 路基表面清理 备土 铺土平整 备粉煤灰 铺灰 拌和平整 备石灰 铺灰 拌和 整平碾压 洒水养生 八、试验段安全文明施工措施为了切实做到安全生产，文明施工，我项目部成立了以项目经理为首的安全领导小组，并设专职安全员，在施工中狠抓安全生产，严格落实安全管理措施，杜
14、绝发生各类重大安全事故，将安全隐患消灭在萌芽状态。安全领导小组的组成如下：组 长：索函军 副组长： 高 平 焦庆丰 专职安全员：李金海 成 员： 薛 刚 朱建斌 张智峰 1、加强安全意识教育，教育职工严格执行安全规章制度；2、建立安全奖惩制度，严禁酒后上岗；3、加强施工机械设备的保养和维修，机驾员在工作前，应对所使用的机械设备进行安全检查，严禁带病作业；4、定期检查安全工作的落实情况，及时排除隐患，确保安全；5、严格限制汽车的行驶速度，确保行车安全；6、在运输便道与农用道路交叉地段，设置交通指示牌。7、设专职安全员巡回检查，对进入工地人员，要求必须戴安全帽，对上岗员工进行上岗前安全培训。要求必
15、须戴安全帽和着相应工种的劳保用品。8、灰土粉煤灰铺设、粉化石灰和石灰过筛，操作人员应戴口罩、风镜、手套、套袖等劳保防护用品，并站在上风向处作业。九、试验段施工的环保措施1、试验段清除的表土、草皮和耕殖土应严格运至指定的地点，并整理成规则的形状，防止水土流失影响周围的农垦区； 2、做好排水措施，将路基范围内的表水引至指定的河流和堰塘； 3、严禁施工人员向水中排放废水、废油、冲洗物和抛弃垃圾； 4、对挖掘机、推土机、压路机、平地机、路拌机、洒水车和自卸汽车采用安装消音器等措施来降低噪音；5、定时在施工作业面和施工便道上洒水，以减少灰尘的排放。松铺系数测定表桩 号检测内容测点编号距中线m距中线m距中
16、线m平均值下承层高程摊铺后高程压实后高程松铺系数下承层高程摊铺后高程压实后高程松铺系数下承层高程摊铺后高程压实后高程松铺系数下承层高程摊铺后高程压实后高程松铺系数平均值记录人： 时间： 碾压遍数及压实度对照表碾压遍数与压实度对照（先静碾1遍）备注低震1遍低震2遍后高震1遍后高震2遍后高震3遍后高震4遍后桩号压实度桩号压实度桩号压实度压实度压实度桩号压实度English is the most widely spoken language in the history of our planet, used in some way by at least one out of every sev
17、en human beings around the globe. Half of the worlds books are written in English, and the majority of international telephone calls are made in English. English is the language of over sixty percent of the worlds radio programs. More than seventy percent of international mail is written and address
18、ed in English, and eighty percent of all computer text is stored in English. English has acquired the largest vocabulary of all the worlds languages, 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
19、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, blackboards can be green or blue, and blackberries are green and then red before they are ripe. Even if blackberries were really black and blueberries r
20、eally blue, what are strawberries, cranberries, huckleberries, raspberries, and gooseberries supposed to look add to this insanity there is no butter 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 mushro
21、om, 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 consisting 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, frie
22、s in France, or Danish pastries in Denmark. And we discover even more culinary madness in the that sweetmeat is made from fruit, while sweetbread, which isnt sweet, is made from this unreliable English tongue, greyhounds arent always grey (or gray); panda bears and koala bears arent bears (theyre ma
23、rsupials); 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 beetles); 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 fro
24、m Guinea (its a South American rodent); and a titmouse is neither is like the air we breathe. Its invisible, inescapable, indispensable, and we take it 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 a
25、nd 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 daylight while morning sickness and daydreaming can take place at night, tomboys are girls and midwives can be men, hours - especially happy hours and r
26、ush hours - often last longer than sixty minutes, quick- sand works very slowly, boxing rings are square, silverware and glasses can be made of plastic 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 th
27、e 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 to 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 k
28、ing 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 someone who writes, and a stinger is something that stings. But fingers dont grocers dont, haberdashers dont, hammers dont ham, and humdingers dont t
29、he 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 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 t
30、eacher 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 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 receptio
31、n, 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 is 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 v
32、egetarian eats vegetables, what does a humanitarian eat? (And Im beginning to worry about those authoritarians.)And if pro and con are opposites, is congress 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
33、 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 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 wh
34、at 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, while 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
35、 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 coming 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 t
36、he 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 opposing pairs? If harmless actions are the opposite of harmful why are shameful and shameless behavior the same and pricey objects less expensive th
37、an priceless appropriate and inappropriate remarks and passable and impassable mountain trails are opposites, why are flammable and inflammable materials, heritable and inheritable property, and passive and impassive people the same and valuable objects less treasured than invaluable ones? If uplift
38、 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 neither 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 mo
39、on 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, 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 cr
40、azy 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 convey 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?