水泥土攪拌樁施工工藝方案版

1、水泥土攪拌樁施工方案一、 施工測(cè)量1 項(xiàng)目部測(cè)量人員及測(cè)量儀器的配置(1)人員配置 本標(biāo)段的水泥土攪拌樁主要分布在通道兩側(cè)，本工程由于工期緊，施工任務(wù)重，測(cè)量乃施工前期工作，故項(xiàng)目部配備3名測(cè)量人員。所有測(cè)量人員均由技術(shù)精、業(yè)務(wù)好、責(zé)任心強(qiáng)的人員組成，其中工程師1名。(2)保證措施 測(cè)量人員均持證上崗，且有較豐富的施工經(jīng)驗(yàn)、測(cè)量儀器需經(jīng)過計(jì)量檢測(cè)部門的檢定，且在有效期限之內(nèi)，檢定合格證的復(fù)印件交監(jiān)理單位一份，現(xiàn)場自存一份，在用儀器設(shè)立臺(tái)帳。2 施工測(cè)量本工程交樁后，項(xiàng)目部測(cè)量技術(shù)組對(duì)所交樁位進(jìn)行復(fù)測(cè)，并將復(fù)測(cè)成果上報(bào)上級(jí)主管部門，測(cè)量技術(shù)部已完成EK12+081.7EK12+141.7段的施工

2、放樣及樁位的布設(shè)，請(qǐng)監(jiān)理單位驗(yàn)樁。3 測(cè)量質(zhì)量保證措施a.加強(qiáng)測(cè)量業(yè)務(wù)的學(xué)習(xí)，熟練掌握測(cè)量儀器的使用與保養(yǎng)；b.加強(qiáng)責(zé)任心與敬業(yè)心，認(rèn)真對(duì)待每一組數(shù)據(jù)實(shí)測(cè)準(zhǔn)確度；c.做到內(nèi)業(yè)與外業(yè)緊密結(jié)合，嚴(yán)格按測(cè)量工程標(biāo)準(zhǔn)測(cè)設(shè)樁位、高程。二、 主要測(cè)量儀器及其性能指標(biāo)見附表3三、 水泥土攪拌樁施工1 水泥土攪拌樁施工工藝（詳見水泥土攪拌樁施工工藝圖）流程如下：測(cè)量放線 樁機(jī)就位、對(duì)中 報(bào)驗(yàn)樁位 制備水泥漿 攪拌噴漿下沉 噴漿、攪拌、提升 重復(fù)攪拌下沉 重復(fù)攪拌上升 成樁結(jié)束位移 地基處理效果檢測(cè)2 施工方法及技術(shù)措施a、施工準(zhǔn)備（1）水泥進(jìn)場時(shí)必須有質(zhì)量合格證書，出廠試驗(yàn)報(bào)告；在使用前按規(guī)范要求取樣，檢測(cè)結(jié)

3、果合格報(bào)監(jiān)理簽字認(rèn)可后方可使用。（2）依據(jù)工程地質(zhì)勘察資料和室內(nèi)配合比試驗(yàn)，結(jié)合設(shè)計(jì)要求，選擇最佳水泥摻入比，水灰比0.5,確定攪拌工藝參數(shù)。（3）依據(jù)設(shè)計(jì)圖紙，做好現(xiàn)場平面布置，安排好打樁施工流水。布置水泥漿制備系統(tǒng)和泵送系統(tǒng)。（4）清理施工現(xiàn)場的地下、地面及空中障礙，以利安全施工。（5）水泥現(xiàn)場堆放應(yīng)注意防水防潮。（6）按設(shè)計(jì)要求，進(jìn)行現(xiàn)場測(cè)量放線，定出樁位，并打入小木樁。b、勞動(dòng)組織 每臺(tái)班深層攪拌機(jī)械由7人（不含機(jī)修工電工）組成： 班長：1名，負(fù)責(zé)深層攪拌施工指揮，協(xié)調(diào)各工序間的操作聯(lián)系； 機(jī)長：1名。按照班長發(fā)出的信號(hào)，正確操作攪拌機(jī)的下沉、提升、噴漿、停漿等；觀察和檢查攪拌機(jī)運(yùn)轉(zhuǎn)情

4、況，做好維修保養(yǎng)工作； 司泵工：1名，負(fù)責(zé)指揮灰漿制備，泵送系統(tǒng)的正常運(yùn)轉(zhuǎn)，做好水泥漿制備設(shè)備保養(yǎng)，負(fù)責(zé)輸漿管路的清洗； 記錄：1名，依據(jù)設(shè)計(jì)要求，測(cè)定攪拌樁每延米的灌漿量；發(fā)現(xiàn)停漿時(shí)立即通知班長，采取補(bǔ)救措施；同時(shí)記錄施工中的各種數(shù)據(jù)，復(fù)查樁位、水泥漿配比等。 拌漿工：2名，按設(shè)計(jì)配合比制備水泥漿，并按照司泵工的指揮，將水泥漿倒入集料斗； 供料工：1名，負(fù)責(zé)搬運(yùn)水泥，并收集用完的水泥袋。 另外每套機(jī)械應(yīng)配備一名機(jī)修工和一名電工，保證整套機(jī)械和現(xiàn)場施工的正常進(jìn)行。3水泥土攪拌樁施工工藝（1）就位本工程水泥深層攪拌樁采用單軸型鉆頭樁機(jī)，移動(dòng)樁架到達(dá)指定樁位，使鉆頭中心對(duì)準(zhǔn)設(shè)計(jì)樁位。（2）制備水泥

5、漿根據(jù)設(shè)計(jì)用灰量（每米50Kg）、樁長、水灰比拌制水泥漿，拌好后的水泥漿過篩后到入集料斗中。（3）攪拌噴漿下沉樁位定好后，啟動(dòng)電機(jī)，放松起重機(jī)鋼絲繩，使攪拌機(jī)沿導(dǎo)向架邊攪拌、邊切土下沉噴漿，以防止出漿口在下沉過程中被土團(tuán)所堵塞。下沉速度由電機(jī)監(jiān)測(cè)表控制，工作電流不應(yīng)大于70A。（4）噴漿、攪拌提升水泥深層攪拌樁機(jī)下沉到設(shè)計(jì)深度后，邊旋轉(zhuǎn)攪拌鉆頭邊提升，提升時(shí)嚴(yán)格按照明設(shè)計(jì)確定的提升速度提升攪拌機(jī)并噴射余下的水泥漿。（5）重復(fù)攪拌下沉和提升為使軟土和水泥漿攪拌均勻，可再次將攪拌機(jī)邊旋轉(zhuǎn)邊沉入土中，至設(shè)計(jì)加固深度后再將攪拌機(jī)邊旋轉(zhuǎn)邊提升出地面。（6）清洗向集料斗中注入適量的清水，開啟灰漿泵，清洗全

6、部管路中殘余的水泥漿，直至基本干凈。并將粘附在攪拌頭上的軟土清除干凈。（7）移位將深層攪拌機(jī)移位，重復(fù)上述1-6步驟，進(jìn)行以下根樁的施工。4水泥漿深層攪拌樁電子計(jì)量系統(tǒng)水泥土攪拌樁整個(gè)過程均采用PJ-1噴漿記錄器,用其控制施工全過程監(jiān)視、測(cè)量和記錄裝置。其功能主要有：（1）能測(cè)定深層攪拌樁的鉆孔深度；（2）對(duì)噴漿過程中的每0.1米噴漿量計(jì)量和整樁累計(jì)噴漿量進(jìn)行測(cè)量，顯示和記錄。（3）能對(duì)操作中的作弊行為，主要對(duì)噴漿次數(shù)和復(fù)攪深度具有防偽功能。因此能較準(zhǔn)確的適時(shí)顯示和記錄、漿量與深度的關(guān)系，為操作人員提供適時(shí)操作的依據(jù)以達(dá)到設(shè)計(jì)的要求，保證成樁性能，減少材料浪費(fèi)。5施工中質(zhì)量重點(diǎn)控制要點(diǎn)：（1）

7、定位偏差：偏差<5cm；（2）樁身垂直度：垂直度1%；（3）噴漿攪拌速度：V0.5m/min；（4）樁身地表下5m范圍內(nèi)必須再重復(fù)攪拌一次，使水泥和地基土均勻拌和；（5）施工中電流表變化以不超過70A為宜；6其它原則 （1）攪拌樁要穿透軟土層到達(dá)強(qiáng)度相對(duì)較高的持力層，持力層深度除根據(jù)地質(zhì)資料外，還應(yīng)根據(jù)下鉆時(shí)電流表的讀數(shù)值來確定，當(dāng)下鉆時(shí)電流表的讀數(shù)明顯上升，說明已進(jìn)入硬土層，當(dāng)電流表上升到一個(gè)較大數(shù)值且進(jìn)入硬土層深度達(dá)0.5m以上時(shí)則說明已進(jìn)入持力層。（2）攪拌樁的施工必須連續(xù)，若成樁過程中遇有故障而停止噴漿時(shí)其噴粉重疊長度不得小于1.0m。（3）水廠管線處施工攪拌樁，應(yīng)注意距離已有管

8、線不小于2.0m，并注意保護(hù)管線。（4）凡施工樁長與設(shè)計(jì)樁長不符，必須如實(shí)記錄并經(jīng)駐地監(jiān)理簽訂后報(bào)指揮部認(rèn)可。如出現(xiàn)大量樁長不符，應(yīng)報(bào)指揮部確定是否進(jìn)行設(shè)計(jì)變更。（5）復(fù)攪深度原則上應(yīng)貫通全樁長，施工中發(fā)現(xiàn)不能全樁長復(fù)攪，報(bào)監(jiān)理，經(jīng)監(jiān)理同意后可根據(jù)實(shí)際情況確定復(fù)攪長度或根據(jù)電流值變化情況確定復(fù)攪長度。（6）若發(fā)生“空洞”情況的，應(yīng)立即用素土回填“空洞”，重新下鉆噴漿進(jìn)行接樁處理，重疊長度不小于1.0m，直至成樁為止。（7）施工完必須養(yǎng)生一個(gè)月達(dá)到設(shè)計(jì)強(qiáng)度后才能填筑路基或施工構(gòu)造物，以免影響軟土地基處理效果。7水泥土攪拌樁安全措施（1）在不平整場地上或較軟場地上施工時(shí)，應(yīng)保持機(jī)械的穩(wěn)定和垂直度，

9、如傾斜度大于1%，應(yīng)校正機(jī)架后方可施工，嚴(yán)禁在傾斜很大的情況下進(jìn)行下沉施工。 （2）當(dāng)發(fā)現(xiàn)攪拌機(jī)的入土切削和提升攪拌負(fù)荷太大及電機(jī)工作電流超過額定值時(shí)，應(yīng)減慢升降速度或補(bǔ)給清水；發(fā)生卡轉(zhuǎn)、停轉(zhuǎn)現(xiàn)象時(shí)，應(yīng)切斷電源，并將攪拌機(jī)強(qiáng)制提升出地面，然后重新啟動(dòng)電機(jī)。 （3）當(dāng)電壓低于350V時(shí)，應(yīng)暫停施工，以保護(hù)電機(jī)。 （4）泵送水泥漿前，管路應(yīng)保持濕潤，以利輸漿。 （5）水泥漿內(nèi)不得夾有硬結(jié)塊，一般在集料斗上部裝設(shè)細(xì)網(wǎng)進(jìn)行過篩，以免吸入泵內(nèi)損壞缸體。 （6）輸漿管路應(yīng)保持干凈，嚴(yán)防水泥漿結(jié)塊，每日用完后應(yīng)徹底清洗一次。噴漿攪拌施工過程中，如果發(fā)生事故而停機(jī)半小時(shí)以上，應(yīng)先拆除管路，排除水泥結(jié)石，然后進(jìn)

10、行清洗。 （7）應(yīng)定期拆卸清洗灰漿泵，注意保持齒輪減速箱內(nèi)潤滑油的清潔。8對(duì)部分超深樁采取的措施 （1）根據(jù)設(shè)計(jì)有效樁長、樁底標(biāo)高調(diào)整樁架高度保證滿足施工需要。 （2）根據(jù)地質(zhì)資料，了解打樁段土層情況，根據(jù)以往施工經(jīng)驗(yàn)，更換電機(jī)，增大功率，使深層攪拌樁機(jī)能順利切入土中，并達(dá)到樁底設(shè)計(jì)標(biāo)高。 （3）對(duì)樁深超過18米的部位，在噴漿過程中密切觀察流量變化情況，保證噴漿量和噴漿的部位符合要求。附表1 水泥土攪拌樁施工工藝圖驗(yàn)成樁深噴漿攪拌提升重復(fù)攪拌下沉重復(fù)攪拌提升完 畢驗(yàn)噴漿總量PJ-1噴漿記錄器控制場 地 平 整測(cè) 量 放 線驗(yàn) 線樁 機(jī) 就 位驗(yàn)樁機(jī)對(duì)中噴漿攪拌下沉制備水泥漿附表2 水泥土攪拌樁

11、主要施工機(jī)械表機(jī)械名稱規(guī)格型號(hào)額定功率（KW）或容量（m3）或噸位（t）數(shù) 量（臺(tái)）備 注深層攪拌樁機(jī)DJB-5003716灰漿泵HB6-3416灰漿攪拌機(jī)200232附表3 測(cè)量儀器一覽表序號(hào)儀器名稱規(guī)格型號(hào)數(shù)量生產(chǎn)廠家備注1全站儀2"1TOPCON2水準(zhǔn)儀1蘇州一光3卷尺50m2寧波長城精工卷尺廠4卷尺5m4寧波長城精工卷尺廠g an employment tribunal claimEmployment tribunals sort out disagreements between employers and employees.You may need to make a

12、claim to an employment tribunal if:· you don't agree with the disciplinary action your employer has taken against you· your employer dismisses you and you think that you have been dismissed unfairly.For more information about dismissal and unfair dismissal, see Dismissal.You can m

13、ake a claim to an employment tribunal, even if you haven't appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any compensation awarded to you as a result of your failure to appeal.Remember that in most ca

14、ses you must make an application to an employment tribunal within three months of the date when the event you are complaining about happened. If your application is received after this time limit, the tribunal will not usually accept it.If you are worried about how the time limits apply to you, take

15、 advice from one of the organisations listed under Further help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If

16、you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed under Further help.If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your compe

17、nsation if you win the case. This is known as a damages-based agreement. In England and Wales, your solicitor can't charge you more than 35% of your compensation  if you win the case.If you are thinking about signing up for  a damages-based agreement, you should make sure you'

18、re clear about the terms of the agreement. It might be best to get advice from an experienced adviser, for example, at a Citizens Advice Bureau.  To find your nearest CAB, including those that give advice by e-mail, click on nearest CAB.For more information about making a claim to an emplo

19、yment tribunal, see Employment tribunals.The (lack of) air up there Watch mCayman Islands-based Webb, the head of Fifa's anti-racism taskforce, is in London for the Football Association's 150th anniversary celebrations and will attend City's Premier League match at Chelsea on Sunday

20、."I am going to be at the match tomorrow and I have asked to meet Yaya Toure," he told BBC Sport."For me it's about how he felt and I would like to speak to him first to find out what his experience was."Uefa has opened disciplinary proceedings against CSKA for the

21、"racist behaviour of their fans" during City's 2-1 win.Michel Platini, president of European football's governing body, has also ordered an immediate investigation into the referee's actions.CSKA said they were "surprised and disappointed" by Toure's complain

22、t. In a statement the Russian side added: "We found no racist insults from fans of CSKA."Age has reached the end of the beginning of a word. May be guilty in his seems to passing a lot of different life became the appearance of the same day; May be back in the past, to oneself the paranoid

23、 weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it.一字開頭的年齡已經(jīng)到了尾聲。或許是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過成了同一天的樣子；或許是追溯過去，對(duì)自己

24、那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來，思緒一直很凌亂，在腦海中不斷糾纏?？傆X得自己自己似乎應(yīng)該去做點(diǎn)什么，或者寫點(diǎn)什么。二十年的人生軌跡深深淺淺，突然就感覺到有些事情，非做不可了。The end of our life, and can meet many things really do?而窮盡我們的一生，又能遇到多少事情是真正地非做不可？During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more

25、 and more found that those things are optional; Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn't really grow up, it seems is not so important; Then in high school, think

26、don't want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himsel

27、f has already can't remember his appearance.童年時(shí)，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進(jìn)，會(huì)越來越發(fā)現(xiàn)，那些東西根本就可有可無；初中時(shí)，以為要有一場暗戀才意味著真正的成長，但三年過去后，自己心平氣和的寫同學(xué)錄的時(shí)候，突然就發(fā)現(xiàn)是不是真正的成長了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個(gè)句點(diǎn)，但畢業(yè)晚會(huì)的時(shí)候最終還是被梗塞在了咽喉，后來再次站在他曾經(jīng)揮汗如雨的球場，看著他投過籃球的球框時(shí)，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。Originally, this world, can p

28、roduce a chemical reaction to an event, in addition to resolutely, have to do, and time.原來，這個(gè)世界上，對(duì)某個(gè)事件能產(chǎn)生化學(xué)反應(yīng)的，除了非做不可的堅(jiān)決，還有，時(shí)間。A person's time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but

29、 more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a self-righteous spiritual.一個(gè)人的時(shí)候，自己的想法總是特別地清晰。想要的，不想要的，界

30、限明確，好像沒有什么可以撼動(dòng)自己。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時(shí)候是最后又打起了退堂鼓。嫌惡過自己的怯懦，最終卻發(fā)現(xiàn)有很多緣分，有很多錯(cuò)過，好像冥冥之中真的已經(jīng)注定。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說，是自以為是的精神寄托罷了。At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt; Those were broken into various shapes of stati

31、onery; From the corner at the beginning of deep friendship; Have declared the end of the encounter that haven't start planning. Those years, those days of do, finally, like youth, will end in our life.此刻，天空是陰暗的，空氣里有著剛下過雨之后的清新因子。突然想到那件藍(lán)格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場還沒有開始就宣告了終結(jié)的邂逅計(jì)劃那些年那些天的非

32、做不可，終于和青春一樣，都將在我們的人生中謝幕。Baumgartner the disappointing news: Mission aborted. r plays an important role in this mission. Starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. The balloon, with capsule attached, will

33、 move through the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. It will climb higher than the tip of Mount Everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the strat

34、osphere. As he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence.The supersonic descent could happen as early as Sunda.The weatheThe balloon will slowly drift to the edge of space at 120,000 feet ( Then, I would assume, he will slowly step out onto something resembling an Olympic diving platform.Below, the Earth becomes the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, he'll be traveli