堆石排水棱体技术方案
Technical proposal for rockrfill prism
一技术参数technical parameters
1砂垫层（反滤Ⅰ区）材料要求sand cushion(No1# filter section)material requirements：dmax≤75mm，d90≤20mm,d5≥0.075mm；
（2）在施工现场设置专人对每车料进行合格确认，确认合格的卸料，不合格的禁止卸料；
质量要求quality requirements：相对密实度relative density≥0.75；
4堆石棱体材料要求material requirements for rockfill prism：dmax≤800mm，d15=10~45mm,d50=50~250mm;
5层厚layer thickness：堆石棱体填筑，层厚1m；filling of reckfill prism , thickness of 1m
测量放线lofting：测量出每层上下游坡比控制线和层厚控制线，并现场用油漆标示；slope ratio control line and layer thickness control line each layer should be measured and marked in painting upstream and downstream
堆石棱体技术方案
Technical proposal for rockfill prism
编号No：2015718
工程项目project name
斯里兰卡延河农业灌溉工程Yan Oya agricultural irrigation project in Sri Lanka
合同号Contract No
Chna CAMC Engineering ,LTD
施工队伍construction team
土方作业队construction team of earthwork
交底日期date of disclosure
交底地点venue
总工办QSHE office
交底内容contents of disclosure：堆石棱体作业规程operation regulation of rockfill prism详见下页see the next page for more details
2各工序施工方法construction method for each process
基面清理clearings of foundation surface：清理表面杂物、树根等，不能侵占堆石棱体的设计宽度；clearings of sundries on the surface ,roots etc , the occupancy of design width of rockfill prism is not allowed .
Dry masonry rubble in the drainage prism is constructed on the rockfill slope with the method of thread-ligating therapy while constructing ,to control slope ratio of external side , set up a pile at the 10m interval with height and thread between two piles marked on the pile , masonry from up to down and from inside to outside should be lifted ,joint should be fastened staggeringly , straight joint should not be allowed ,joints width is not more than 3cm ,the method of setting up stone outside can not be adopted , slope surface of masonry rubble and crest should be even but not loosen , and then fill joints with rubble and level .
4排水棱体的干砌块石是在堆石边坡上进行砌筑，砌筑时应采用立架挂线法控制外侧坡度，每隔10m立一根架桩，桩上定出相应标高，两桩之间挂线，砌筑时应自下而上，由内到外层层上升，接缝应相互交错牢固，不得有连续直缝现象，缝宽不得大于3cm，不允许采用外侧立石中间填心的方法，砌石的坡面，顶面必须平整且不得松动，然后用碎石填充面缝契紧找平。
上下游坡面处理slope treatment upstream and downstream：挖机将大块石摆成1:1（2.5）的坡；make big rocks into slopes at a rate of 1:1(2.5) by excavator
3反滤料填筑顺序先填粗砂再填砂砾石、过渡料，填筑厚度均按30cm一层摊铺；采用挖掘机进行摊铺找平；每层摊铺厚度30cm.待粗砂找平碾压完后立即进行削坡，再进行砂砾料、过渡料填筑，填筑方法同粗砂填筑；
合同号contract No
LK01E-A2-D002
单位工程名称unit project name
主坝main dam、1#副坝No1#saddle dam、2#副坝No2#saddle dam、3#副坝No3#saddle dam、4#副坝No3#saddle dam
施工单位construction company
卸料discharge：30t自卸车卸料discharge by 30t dump truck；
推平leveling：挖机或推土机平料excavator or bulldozer；
洒水watering：洒水车高压水枪洒水；watering by water bowser and high-pressure water gun
中工国际工程股份有限公司
China CAMC Engineering ,LTD
施工队伍construction team
土方作业队operation team of earthwork
交底日期Date of disclosure
交底地点venue
总工办QSHE office
交底内容contents of disclosure：
三施工质量控制措施measures about construction quality control
1料源控制source of sand control
（1）严格控制料源质量，不得将泥土等杂物与堆石料混装，严格控制含泥量，保证上坝料级配均匀合理；
Strictly control source of sand control , and do not mix rockfill material with sundries like soil , strictly control sand content to ensure grading composition upstream is uniform and reasonable
岸坡接缝处理joint treatment for bank slope：将周边岩体上的碎屑处理干净，接缝处禁止过大块石堆放，每一层碾压前用挖机作细部处理；keep the sundries on the rock out , no big rock besides joints ,details treatment each layer before compaction by excavator .
LK01E-A2-D002
单位工程名称unit project name
主坝main dam、1#副坝No1#saddle dam、2#副坝No2#saddle dam、3#副坝No3#saddle dam、4#副坝No4#saddle dam
施工单位construction company
中工国际工程股份有限公司
碾压compaction：振动碾与沿坝轴线平行的方向碾压，静2动4碾压，碾压时行驶速度2~3km/h；
Compaction in parallel with dam axis by vibrating roller ,static compaction two times , vibrating compaction 4tiems , running speed while rolling of 2-3km/h
审核人Checked by
郑志宏Mr.Zheng Zhihong
注note：
堆石棱体技术方案
Technical proposal for rockfill prism
编号：2015718
工程项目project name
斯里兰卡延河农业灌溉工程
Yan Oya agricultural irrigation project in Sri Lanka
被交底人签到表attendance registration：
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交底人discloser
刘运雄Mr.Liu Yunxiong
2质量要求quality requirements：相对密实度relative density=0.7