關(guān)于拼接路基施工的技術(shù)要求
主要內(nèi)容：
擴(kuò)建工程在每個(gè)標(biāo)段按首件工程認(rèn)可制的要求，選擇具有代表性的施工段落作為施工試驗(yàn)段，來確定壓實(shí)機(jī)具的組合、最佳含水量、松鋪厚度、碾壓遍數(shù)、施工工藝等。及時(shí)寫出試驗(yàn)報(bào)告并報(bào)批。拼接路堤施工要求多點(diǎn)分段平行流水施工，確保在計(jì)劃工期內(nèi)完成路基拼接施工。每個(gè)施工段采取五流程、三階段組織流水作業(yè)，確保施工進(jìn)度。五流程即：1）施工準(zhǔn)備：清表，修筑臨時(shí)便道、臨時(shí)排水設(shè)施，取土坑排水和便道，拆除護(hù)坡、邊溝等；2）基底處理：填前翻松、摻灰并壓實(shí)，開挖臺(tái)階等；3）分層填筑：按預(yù)定的松鋪厚度上土，翻拌晾曬或補(bǔ)水，摻灰拌和、平整壓實(shí)；4）分層檢測(cè)報(bào)驗(yàn)：按規(guī)定自檢，測(cè)量壓實(shí)度、石灰劑量、含水量等，報(bào)請(qǐng)監(jiān)理抽查，合格后進(jìn)行下道工序；5）整修：每層完成后應(yīng)對(duì)路基的邊坡、坑槽、表層松散、剝落層進(jìn)行整修，特別是雨后或間隔時(shí)間較長(zhǎng)的填土層，需刮除松散層、灑水復(fù)壓，保證層間接合不留夾層。三階段即：1）填前翻曬或補(bǔ)水作業(yè)階段；2）摻灰、（若必要時(shí)）平整、碾壓階段；3）自檢、報(bào)驗(yàn)、復(fù)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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