uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ谈现场土方压实试验工作对土方回填施工质量的保证uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ云南城市建设监理有限公司 周伟uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ——— 来源：《云南建设监理》uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ笔者监理了云南省大型戒毒劳教所土石方工程，通过土方回填前的现场压实试验工作，保证了大型土方回填的工程质量。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ中华人民共和国国家标准GB50202-2002《建筑地基基础工程施工质量验收规范》uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ第六章土方工程中6.3条土方回填对土方回填作了4条规定，其中6.3.3条：填方施工过程中应检查排水措施，每层填筑厚度、含水量控制、压实程度。填筑厚度及压实遍数应根据土质，压实系数及所用机具确定。如无实验依据，应符合表6.3.3的规定。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ表6.3.3uÐü´C bbs.3c3t.comò'wRÚPÏ
填土施工时的分层厚度及压实遍数uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ压实机具 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 分层厚度（mm） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 每层压实遍数 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
平碾 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 250～300uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 6～8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
振动压实机 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 250～350uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3～4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
柴油打夯机 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 200～250 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3～4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
人工打夯 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | ﹤200uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3～4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ在条文说明中：填方工程的施工参数如每层填筑厚度、压实遍数及压实系数对重要工程均应做现场实验后确定，或由设计提供。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ笔者认为对于大型及重要工程，必须按照该规范执行。笔者就自己监理的上述民用建筑土方回填工程，通过现场压实实验，来说明场地回填土方工程中压实实验的重要性，供参考。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ回填土的质量主要由现场回填土的压实密度来体现。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ土方回填前应清除基底的垃圾、树根等杂物，抽除坑穴积水、淤泥，验收基底标高。如在耕植土或松土上填方，应在基底压实后再进行，一般现场取土样，进行干密度实验，合格后进行回填土施工，对于软弱层，应根据设计要求进行换填处理后再进行施工。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ回填方土料应满足设计要求，对于需挖填场地，应立足于现场挖出的土料。所使用的土料必须现场取样，对土性变化大的场地，需划分出各自的区域，分别取样测定土样的最大干密度与最优含水量，回填时需分开回填，不能混淆。回填土前需测定土的含水量，如含水量大，需进行晾晒，降低含水量。如含水量小，需人工洒水，增加含水量，保证含水量接近最优含水量。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ施工场地地质情况说明：场地为残、坡积红粘土，分布均匀，厚度1～20米，变化较大，下伏灰岩，岩性变化不大，红粘土带弱膨胀性。挖方量约25万方，填方约22万方，石方约3万方，挖填基本平衡。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ一、试验目的：uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ测定土的含水量与质量密度的关系，从而确定该土的最优含水量与相应的压实干密度，根据击实试验确定的最大干密度之间的关系，掌握土方回填的压实遍数，给场平工作施工创造条件，以便保证土方压实的质量。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ二、试验内容：uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ本试验场地选在回填范围内，占地面积240m2, 试验场地根据工程的土方不同来源分为三部分（土样一、土样二、土样三）。试验日期为一天，参加人员为建设单位5人，监理单位4人，施工单位5人，共计14人。试验方法采用推土机找平，虚铺土厚度35cm，TY14型拖式振动碾压机，压实遍数4遍（振动碾4遍）；6遍（平碾2遍，振动碾4遍）和8遍（平碾2遍，振动碾6遍）三次进行，其中铺土也是依次进行，根据土样来源和压实变数不同共取土样75件（其中在做试验时废了一件），实际试验土样74件。待三层土样都根据不同的压实遍数全部压实后又垂直取样18件（每个土样取6组），由于在取样过程中废了一件，实际试验土样17件，整个过程共做土工试验92件，取样均采用200cm3环刀进行。74件土样含水量与干密度关系见下表：uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ振动碾压4遍（土样一）uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 12#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.0uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.388uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.382uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 29.0uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.45uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 18#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.419uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 13#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.1uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.422uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 振动碾压4遍（土样二）uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.416uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.413uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 15#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.373uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 4#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.3uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.443uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.3uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.370uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
振动碾压4遍（土样三） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.0uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.412uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.393uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.413uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.419uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 振动碾压6遍（土样一） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 12#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.372uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.408uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.442uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 18#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.354uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 13#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.1uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.394uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 15#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.393uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 17#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.2uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.390uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.371uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 5#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.408uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 7#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.404uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
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振动碾压6遍（土样二） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.430uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.380uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 15#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.393uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 4#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 39.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.332uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 36.2uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.344uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 4#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.392uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 12#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.0uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.393uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 18#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.363uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 13#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 39.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.395uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 10#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.3uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.394uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 振动碾压6遍（土样三）uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.408uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.442uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.43uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.384uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.344uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.390uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 29.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.490uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.443uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.430uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 37.3uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.377uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
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振动碾压8遍（土样一） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.449uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 18#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.8uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.408uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.344uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 12#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.401uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.450uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 7′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.405uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.1uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.405uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 15′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 29.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.392uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 2′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.470uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.3uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.411uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 振动碾压8遍（土样二） uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 15#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.388uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 5#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.406uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 4#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 30.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.45uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 10#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 29.2uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.488uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 13#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 29.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.474uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.420uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 18′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.416uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 4′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.0uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.413uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.462uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 13′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 33.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.372uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
振动碾压8遍（土样三）uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ环刀号 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 含水量 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 干密度 uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 7#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 36.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.396uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 8#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.9uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.341uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 3#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.6uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.394uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 17#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.7uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.396uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 11#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 35.2uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.406uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 17′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 31.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.419uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 5′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.5uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.372uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 10′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.4uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.382uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 12′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 34.1uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.375uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 14′#uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 32.1uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | 1.412uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏuÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ | uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ |
uÐü´C bbs.3c3t.comò'wRÚPÏ三、试验情况：uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ1、所试验的粘土经环刀取样试验，干密度随含水量增加而减少。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ2、所试验的粘土天然含水量偏大，所做点处于最佳含水量锋值的右侧。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ3、从试验来看，碾压6、8遍所做点相对集中，离散点较少。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ4、从挖坑取样看，在第3层碾压后几处厚度有35cm，底部所取土样相对容易，眼观察土体稍松。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ5、挖坑取样中，有结合层分离情况。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ6、同层碾压中，光滑面结合处有水平分层现象。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ7、实验碾压不均匀，有的地方碾压遍数失真及实验操作不规范，导致少量数据在相同含水量的情况下，干密度相差偏大。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ8、垂直取样实验情况与分层取样实验基本一致，后续碾压对下层密实度基本无影响，不会增加下层的密实度。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ9、虚铺土厚度可按35cm实施。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ四、结论：uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ1、本场地回填土质天然含水量偏大，回填时要减少含水量，含水量以击实实验的最优含水量为准，施工方要采取保证含水量措施。uÐü´C bbs.3c3t.comò'wRÚPÏ
2、建议施工回填碾压遍数不能少于6遍，8遍不经济。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ3、需铺土厚度不大于35cm。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ4、每层结合层较光滑面处需采取抛毛处理。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ5、实验室操作人员要持证上岗，避免、减少实验误差。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ回填土施工时，施工、监理严格按实验结论指导施工：虚铺土厚度35cm，使用相同设备静压2遍，振动碾4遍（含抛毛处理的凸碾1遍），基层洒水后碾压，开挖回填土碾压前测含水量，分区域晾晒施工，试验员执证上岗，严格按实验规程操作，保证了回填土质量。后期基础施工时，人工开挖较难。特别是边坡较好：回填密实，容易成形，经过两个雨季后，5米高的边坡没有被雨水冲刷，保持了较好的形状，回填土施工受得了建设方的好评。uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ uÐü´C bbs.3c3t.comò'wRÚPÏ
uÐü´C bbs.3c3t.comò'wRÚPÏ参考书目：中华人民共和国国家标准GB50202---2002《建筑地基基础工程施工质量验收规范》uÐü´C bbs.3c3t.comò'wRÚPÏ
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