312國道滬寧段常州市擴建工程關于拼接路基施工的技術要求.doc

關于拼接路基施工的技術要求
主要內容：
擴建工程在每個標段按首件工程認可制的要求，選擇具有代表性的施工段落作為施工試驗段，來確定壓實機具的組合、最佳含水量、松鋪厚度、碾壓遍數、施工工藝等。及時寫出試驗報告并報批。拼接路堤施工要求多點分段平行流水施工，確保在計劃工期內完成路基拼接施工。每個施工段采取五流程、三階段組織流水作業，確保施工進度。五流程即：1）施工準備：清表，修筑臨時便道、臨時排水設施，取土坑排水和便道，拆除護坡、邊溝等；2）基底處理：填前翻松、摻灰并壓實，開挖臺階等；3）分層填筑：按預定的松鋪厚度上土，翻拌晾曬或補水，摻灰拌和、平整壓實；4）分層檢測報驗：按規定自檢，測量壓實度、石灰劑量、含水量等，報請監理抽查，合格后進行下道工序；5）整修：每層完成后應對路基的邊坡、坑槽、表層松散、剝落層進行整修，特別是雨后或間隔時間較長的填土層，需刮除松散層、灑水復壓，保證層間接合不留夾層。三階段即：1）填前翻曬或補水作業階段；2）摻灰、（若必要時）平整、碾壓階段；3）自檢、報驗、復檢階段。
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Subgrade construction on the technical requirements for splicing
Contents:
Lot expansion project in each of the first pieces of engineering accreditation system in accordance with the requirements, selection of representative works as a construction test section of the paragraph to determine the combination of compaction equipment, the best moisture, loose lay thickness, rolled several times, construction technology. Timely written test report and approval. Splicing embankment section parallel flow requirements more construction workers in the plan period to ensure the completion of construction of embankment splicing. Each construction stage process to take five, three-phase flow process organization, to ensure that construction progress. 5 process, namely: 1) construction preparation: clearing the table, construct temporary pavement, temporary drainage facilities, drainage and sidewalk access pits, removal of slope, ditches, etc.; 2) base treatment: turned loose before filling, mixed with ash and compaction, excavation level, etc.; 3) stratified filling: Shop predetermined thickness on the loose soil, turning dry or mixed supply water, mixed with ash mixing, formation compaction; 4) stratified detection inspection: self-test required to measure compaction, lime dose and water content, reported to the supervision of sampling, after passing to the next process; 5) renovation: each complete response to the roadbed slope, pits, loose surface, peeling off layer repair, in particular rain or after a longer interval fill soil, need to scrape loose layer of complex pressure water spray to ensure the layers together without leaving any indirect sandwich. Three stages, namely: 1) before filling or replenishment operation Fanshai stage; 2) Lime, (if necessary) formation, rolling phase; 3) self-test, inspection, re-examination stage.
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