土方開挖工程施工工藝標(biāo)準(zhǔn)(參考版)
2025-01-18 02:22本頁(yè)面
【正文】 m fortunate to have been given many opportunities throughout my career and now I feel it39。m starting a new adventure and I39。m grateful for my parents39。m fortunate to have realised those this day, one of my proudest achievements is captaining my country. I knew every time I wore the Three Lions shirt, I was not only following in a long line of great players, I was also representing every fan that cared passionately about their country. I am honoured to represent England both on and off the wouldn39?！?I39。s OK. He and we have just adapted.39。It would be the best if he had four legs, of course, but his body wasn39。主人們用“騎兵”一詞來形容Duncan，他們?cè)诮M織的Facebook中寫道：“他很快樂，也很健康；而且在他自己看來，他是條正常的狗。He39。, adding on charity39。s owners have described him as a 39。The thrill of running through the surf was clear to see, as Duncan raced people and dogs across the sand, with his tail wagging excitedly. Duncan踏著浪花，在沙灘上同其他人及狗賽跑，還興奮地?fù)u著尾巴，他的喜悅之情顯而易見。視頻中有些特意制作的慢鏡頭，但是沒有任何一處做過加速處理，你們可以通過視頻感受到Duncan跑得有多快。We let him be free and just walk on his two legs. There is some slow motion in this video, but none of the video has been sped up, this gives you an idea of how fast Duncan really it,39。t like to use ，他們說有一把供Duncan使用的輪椅，但是他并不愛用。He was born with deformed back legs, which were later removed to make the dog more fortable. Duncan出生時(shí)，它的后肢就是畸形的，此后為了讓他舒服些,只能進(jìn)行截肢。His exciting day trip was filmed by Panda Paws Rescue, a Washington statebased charity that cares for Duncan and other dogs with special Paws Rescue拍攝，該組織專門照料Duncan以及其他有特殊需求的狗。A boxer that only has front legs refuses to let his disability hold him back as he charges across a beach with his fourlegged ，他同其他四條腿的伙伴們一同在海灘上盡情狂奔。當(dāng)在地下水位較高或在飽和的軟弱地基上鋪設(shè)墊層時(shí)，應(yīng)加強(qiáng)基坑內(nèi)及外側(cè)四周的排水工作，防止砂墊層泡水引起砂的流失，保持基坑邊坡穩(wěn)定；或采取降低地下水位措施，使地下水位降低到基坑底500mm以下。分層鋪設(shè)時(shí)，接頭應(yīng)作成斜坡或階梯型搭接，～。兩臺(tái)打夯機(jī)在同一作業(yè)面上夯實(shí)，前后距離不得小于5m。 安全和環(huán)境 蛙式打夯機(jī)要兩人操作，其中一人負(fù)責(zé)移動(dòng)膠皮線。完工后，不得在影響墊層穩(wěn)定的部位進(jìn)行挖掘施工。嚴(yán)禁小車及人在砂層上行走，必要時(shí)應(yīng)在執(zhí)層上鋪板行走。40水準(zhǔn)儀 成品保護(hù) 鋪設(shè)墊層時(shí)，應(yīng)注意保護(hù)好現(xiàn)場(chǎng)的軸線樁、水準(zhǔn)點(diǎn)，并應(yīng)經(jīng)常復(fù)測(cè)。 質(zhì)量標(biāo)準(zhǔn)項(xiàng)序檢 查 項(xiàng) 目允許偏差或允許值檢查方法單 位數(shù) 值主控項(xiàng)目1地基承載力設(shè)計(jì)要求按規(guī)定方法2配合比設(shè)計(jì)要求檢查拌和時(shí)的體積比或重量比3壓實(shí)系數(shù)設(shè)計(jì)要求現(xiàn)場(chǎng)實(shí)測(cè)一般項(xiàng)目1砂石料有機(jī)質(zhì)含量（%）（%）≤4焙燒法2砂石料含泥量（%）(%)≤4水洗法3石料料徑（mm）(mm)≤10篩分法4含水量（與最優(yōu)含水量比較）（%）(%)177。 現(xiàn)場(chǎng)簡(jiǎn)易測(cè)定方法是：將直徑20mm、長(zhǎng)1250mm的平頭鋼筋，舉離砂面700mm自由落下，插入深度不大于根據(jù)該砂的控制干密度測(cè)定的深度為合格，檢驗(yàn)點(diǎn)間距應(yīng)小于4m。測(cè)定方法采用容積不小于200cm3的環(huán)刀取樣。，應(yīng)即進(jìn)行下道工序施工，嚴(yán)禁小車及人在砂層上面行走，必要時(shí)應(yīng)在墊層上鋪設(shè)跳板。 當(dāng)采用水撼法或插振法施工時(shí)，（一般為400～500mm）插入振搗，依次振實(shí)，以不再冒氣泡為準(zhǔn)，直至完成，同時(shí)應(yīng)采取措施有效控制地注水和排水。圖1021 是砂或砂礫石墊層分層鋪設(shè)1插入式振勸器；2硬質(zhì)塑料導(dǎo)線管；框架橫向固定架；4框架縱向固定架；5有效振動(dòng)范圍R振動(dòng)有效半徑圖1022 插入式振動(dòng)器編組及振搗范圍表1021夯實(shí)方法每層虛鋪厚度（mm）施工最優(yōu)含水量（%）施 工 要 點(diǎn)備 注平振法200～25015～20，往復(fù)次數(shù)以簡(jiǎn)易測(cè)定密度度合格為準(zhǔn)，每行應(yīng)搭接1/3不宜使用干細(xì)砂或含泥量較大的砂鋪筑插振法振搗器插入深度飽和1. 插入間距根據(jù)機(jī)械振搗大小決定，所留的孔洞應(yīng)用砂填實(shí)不宜使用干細(xì)砂或含泥量較大的砂鋪筑夯實(shí)法150～2008～12，落距400～500mm，全面夯實(shí)適用于砂石墊層碾壓法150～3008～126～10t壓路機(jī)往復(fù)碾壓，次數(shù)以達(dá)到要求密實(shí)度為準(zhǔn)，一般不少于四遍，用振動(dòng)壓實(shí)機(jī)械，振動(dòng)3～5min適用于大面積的砂石執(zhí)層，不宜用于地下水位以下的砂墊層水撼法250飽和
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