【正文】 算（2） 流速： 《室外排水設(shè)計(jì)規(guī)范》。因此要求建設(shè)排水管渠，對(duì)該地區(qū)的原有管道進(jìn)行改造，對(duì)雨水進(jìn)行收集、處理，以適應(yīng)市政建設(shè)發(fā)展，居民日常生活的需要。（4） 覆土或挖深：① ② 局部條件不允許時(shí)，須對(duì)管道進(jìn)行包封加固③ 最大埋深不超過(guò)7~8米（5） 管渠連接與構(gòu)筑物的連接：①管道在檢查井內(nèi)連接，一般采用管頂平接。24′37″～340176。地面高程一般在365—385m之間，西南略低于東北，地面坡降為5/1000—15/1000。最大凍土層深度24cm 水文地質(zhì)主城區(qū)一般桃汛在3月中旬至4月底出現(xiàn)，雨量一般在40mm左右，入汛一般在6月底至7月中旬。河流最大流量350立方米/秒，洪水頻率百年一遇542毫米、五十年一遇458毫米、二十年一遇349毫米、十年一遇266毫米、五年一遇185毫米，（1965年統(tǒng)計(jì)），（1968年統(tǒng)計(jì)）。 氣候?qū)倥瘻貛О霛駶?rùn)季風(fēng)氣候區(qū)，四季分明，日照充足，年平均氣溫在15℃左右，最冷月（一月）℃左右；最熱月（七月）℃左右。新發(fā)展區(qū)域中建有一些分流制排水管道，但為真正分流。從該城區(qū)的平面圖和資料知該城區(qū)地形平坦，無(wú)明顯分水線，故排水流域按城市主要街道的匯水面積劃分。河流的位置確定了雨水出水口的位置，雨水出水口位于河岸邊，由于該地區(qū)地勢(shì)以一定坡度坡向河流，地形對(duì)排除雨水有利，擬采用分散出口的雨水管道布置形式，雨水干管基本垂直于等高線，即正交式布置，這樣雨水能以最短距離靠重力流分散就近排入水體。當(dāng)雨水管道與污水管道交叉布置時(shí)，應(yīng)小管讓大管，必要時(shí)設(shè)置倒虹管。充分利用地形地勢(shì)，最大可能采用重力流形式，避免提升。如果遇山崗盡量采用隧洞方式。具體方案如下圖所示，因方案一只有一個(gè)出水口，故最下面的管徑選擇較大的才能滿足設(shè)計(jì)要求，所以選擇方案二，有三個(gè)出水口的設(shè)計(jì)方案，將城區(qū)劃分為三塊，分別排水，既滿足設(shè)計(jì)要求，又符合節(jié)省開支的宗旨。 跌水井跌水井是設(shè)有消能設(shè)施的檢查井。雨水口間距一般為25~50 m。出水口的位置和形式應(yīng)取得當(dāng)?shù)匦l(wèi)生監(jiān)督、水體管理和交通管理等部門同意。暴雨強(qiáng)度(storm smear)公式：式中：P為設(shè)計(jì)重現(xiàn)期（recurrence period）取值一年； t=t1+mt2 其中t1為地面匯流時(shí)間，匯水時(shí)間t1取15min；m為折減系數(shù)。具體工程造價(jià)詳參市場(chǎng)價(jià)及甲方工程要求。第二天開始往表格里填數(shù)據(jù)，等填數(shù)據(jù)的時(shí)候才發(fā)現(xiàn)，前一天有些管子沒(méi)有設(shè)計(jì)合理，然后開始改動(dòng)一些管線。這段時(shí)間我不是用來(lái)計(jì)算數(shù)據(jù)的，而是用來(lái)刪除表格再重新計(jì)算，再刪再算，再刪再算，算了4遍計(jì)算好了，CAD布線完成了，悲劇來(lái)了，保存錯(cuò)了。通過(guò)幾天的計(jì)算，讓我更加鞏固了前面學(xué)到的專業(yè)知識(shí)，算然我想要以后在建排上做，但這樣的計(jì)算，也能積累很多的經(jīng)驗(yàn)。在此，向老師提前恭祝聲：新年好！7參考文獻(xiàn)1. 中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)，城市排水工程規(guī)劃規(guī)范GB503182000計(jì)劃出版社2．中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)，《室外排水設(shè)計(jì)規(guī)范》 計(jì)劃出版社3．《給水排水設(shè)計(jì)手冊(cè)》城鎮(zhèn)給水、城鎮(zhèn)排水冊(cè)，中國(guó)建筑工業(yè)出版社4．張志剛，《給水排水工程專業(yè)課程設(shè)計(jì)》，化學(xué)工業(yè)出版社，20045．李亞峰 尹士君，《給水排水工程專業(yè)畢業(yè)設(shè)計(jì)指南》，化學(xué)工業(yè)出版社，20046. 汪翙，《給水排水管網(wǎng)工程》化學(xué)工業(yè)出版社，《排水工程》（上）建筑工業(yè)出版社g an employment tribunal claimEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if:Dismissal.You can make a claim to an employment tribunal, even if you haven39。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 you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underif you win the case.If you are thinking about signing up for nearest CAB.For more information about making a claim to an employment tribunal, sees Premier League match at Chelsea on Sunday.I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport.For me it39。City39。s plaint. 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。二十年的人生軌跡深深淺淺，突然就感覺(jué)到有些事情，非做不可了。 Then in high school, think don39。A person39。嫌惡過(guò)自己的怯懦，最終卻發(fā)現(xiàn)有很多緣分，有很多錯(cuò)過(guò)，好像冥冥之中真的已經(jīng)注定。 From the corner at the beginning of deep friendship。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 move through the lower level of the atmosphere (the troposphere) where our daytoday weather lives. It will climb higher than the tip of Mount Everest ( miles/ kilometers), drifting even higher than the cruising altitude of mercial airliners ( miles/ kilometers) and into the stratosphere. 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 bees the concrete bottom of a swimming pool that he wants to land on, but not too hard. Still, h