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土方回填施工技術(shù)交底記錄.doc

更新時間: 2024-02-29
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上傳會員: 龍龍
所屬欄目: 路橋技術(shù)交底
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資料簡介

交底內(nèi)容:
1、在用攪拌樁進行復(fù)合地基處理的區(qū)域,回填前應(yīng)挖除攪拌樁樁頂浮土,回填30cm厚砂礫材料,并碾壓密實。
2、填方材料使用現(xiàn)場內(nèi)開挖的材料,并保證其在規(guī)定的含水量狀態(tài)下能被壓實到設(shè)計規(guī)定的密實度。
3、填筑前要對路基、臺背等進行基底清理,保證施工場地能按設(shè)計要求進行平整壓實。
4、填土路基必須根據(jù)設(shè)計斷面分層填筑壓實,其分層填筑厚度必須與壓實機具相適應(yīng),一般每層松土填土厚度不應(yīng)超過30cm。路基填筑壓實寬度不得小于設(shè)計寬度,以便最后削坡,嚴禁貼坡。
5、每一壓實層均應(yīng)檢驗壓實度,合格后方可填筑上一層。否則應(yīng)查明原因,采取措施進行補壓。檢驗頻率每2000m²檢驗8點,不足2000m²時,至少應(yīng)檢驗兩點,必須每點都符合施工規(guī)范(JTJ071--98)及設(shè)計要求。必要時可根據(jù)需要增加檢驗點。試驗報告要注明土料種類、試驗日期、試驗結(jié)論及試驗人員簽字。未達到設(shè)計要求的部位應(yīng)有處理方法和復(fù)驗結(jié)果。
6、路基修筑前15天應(yīng)在取土地點取樣進行擊實試驗,確定其最
Cards on the table contents:
1, with mixing pile composite foundation of the region, mixing pile excavation before backfilling the top surface dust, gravel backfill material 30cm thick and compacted dense.
2, use of materials on-site fill material within the excavation and to ensure its state water content in the prescribed design requirements can be compacted to the density.
3, before filling of the foundation, basement, etc. Back of clean-up, to ensure construction site can be formed according to design requirements compaction.
4, the design section must fill embankment dam compaction layer, the thickness of the layer filling and compaction equipment to be adapted, generally should not exceed the thickness of each layer loose soil fill 30cm. Roadbed construction shall not be less than the design width of the width of compaction to the final cut slopes, slope paste strictly prohibited.
5, each compacted layer shall be test compaction, pass on the floor only after filling. Otherwise, to identify causes and take measures to fill pressure. Inspection frequency for each test 8:00 2000m ², less than 2000m ², at least two points should be examined, must conform to construction specifications for each point (JTJ071 - 98) and design requirements. Can be increased if necessary checkpoint. Soil test report should indicate the material type, test date, test findings and the signature test. The site does not meet the design requirements should be handling and retest results.
6, 15 days before the embankment construction sites should take soil samples for compaction tests to determine the most
 

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