【正文】 nspection, evaluation standards as well as acceptance methods of construction, safety inspection standards and technical regulations, civilized construction requirements, etc.《巖土錨桿與噴射混凝土支護工程技術(shù)規(guī)范》 GB500862015Technical Code for Engineering of Ground Anchorages and Shotcrete Support GB500862015《預(yù)應(yīng)力筋用錨具、夾具和連接器》 GBT 143702015 Anchor, Grip and Coupler for Prestressed Tendons GBT 143702015 《施工現(xiàn)場臨時用電安全技術(shù)規(guī)范》 JGJ462005Technical Code for Safety of Temporary Electrification on Construction Site JGJ462005第2節(jié) 、施工步驟 II. Construction Arrangement 施工步驟 Arrangement主要施工內(nèi)容有：施工準(zhǔn)備、錨桿孔定位及鉆孔(含不良地質(zhì)段固結(jié)灌漿處理)、錨桿加工編制、清孔下錨、錨固段注漿（含二次劈裂注漿）、錨桿腰梁及錨斜托澆筑、錨桿張拉、補充注漿及封錨等工作。Diesel1套1 set備用Standby發(fā)電機Generator250KW2套2 sets備用Standby泥漿泵Mud pumpBW1501套1 set雙作用空心千斤頂Double acting hollow jackRRH6065套5 sets混凝土施工設(shè)備Concrete construction equipment3套3 sets材料運輸車Transport vehicle for material 5T2輛2 nos.其他設(shè)備Other equipment據(jù)需要配置Prepared as per needs錨桿輔助施工Aided anchor construction木工圓盤鋸Woodworking circular saw380V、1臺1 set模板制作Formwork fabrication鋼筋斷鋼機Steel bar cutting machine380V、1臺1 set鋼筋加工Steel bar process鋼筋切割機Steel bar cutter380V、1臺1 set鋼筋加工Steel bar process鋼筋彎箍機Steel bar bender380V、1臺1 set鋼筋加工Steel bar process電焊機Electric welding machine380V、1臺1 set鋼筋加工Steel bar process木工手提圓盤鋸Woodworking portable circular saw8臺8nos.模板加工Formwork process主要儀器設(shè)備4. Main Instruments and Equipment預(yù)應(yīng)力錨桿施工配備的主要儀器如表2所示Instruments List for anchor construction are shown in figure2 below表2 主要測量、試驗、質(zhì)檢、監(jiān)測儀器設(shè)備表Main Instruments for Measurement, Test, Quality Inspection and Monitoring List序號NO.設(shè)備名稱Instrument Name廠牌及規(guī)格型號Brand, Specification and Model數(shù)量Qty備注Note1全站儀Total StationSET230RK、NTS302R+1錨孔定位Anchor hole positioning2水準(zhǔn)儀Water LevelC32II、DSZ21350m鋼尺Steel Tape(50m)34磨光機Polishing Machine25試樣切割機Sample Cutting Machine16砂漿稠度儀Mortar Consistometer17電動重型擊實儀Electric Heavy Compaction Apparatus電 動electric type18其它儀器Other Instrument根據(jù)需要配置Prepared as per needs第三節(jié) 錨桿主要施工方法 III. Main Construction Method of Anchor （1） 、總體方案 Scheme錨桿施工與邊坡開挖施工同步進行，上層邊坡支護施工完成，開挖至預(yù)應(yīng)力錨桿施工位置后，及時組織進行腰梁及預(yù)應(yīng)力錨桿施工，完成邊坡防護，減少邊坡暴露時間。 1).Preparation Work: The quality and quantity of equipment preparation together with the quantity and structure of human resource arrangement must be patible with the construction of prestressed anchor to meet the construction needs。Completing the preparation, submitting and approval of related technical documents including construction program and construction starting report, etc。 Conducting raw materials inspection, approval procedures and data collection.2) 、錨桿施工順序：錨桿施工按從上到下（可根據(jù)現(xiàn)場情況適當(dāng)調(diào)整）分序加密的原則進行施工。 2).Construction Sequence of Anchor: The anchor construction shall be conducted from the top to the bottom(some proper adjustment can be made according to the actual situation) under the principle of sequence and denseness. Grout leaking between anchor holes shall be avoided in order to prevent the serious impact on construction effect. See Attachment 1 for detailed Plan of Anchor Arrangement(take the construction order from the top to the bottom as example). The following various construction work shall be carried out timely.（2） 、施工準(zhǔn)備2. Construction Preparation、錨桿的簡述 Brief Introduction of Anchor、錨桿長度：～，錨桿錨固長度5～8m,。 執(zhí)行標(biāo)準(zhǔn)GB/T 52242014，錨桿規(guī)格采用絞線3162。；沿錨桿長度每隔2000mm，采用Φ48*； Anchor: The steel strand with the specification and model of 162。 and 2162。錨具（M173,3孔）≥設(shè)計值380KN，與鋼絞線3162。 Anchorage: The designed strength of M172 anchorage with 2 holes shall be equal or more than 340KN which match with that steel strand with 2162。. Two types anchorages shall conform to the operative norm of GB500862015.、錨板：錨板尺寸300*300*25(mm)，錨板中間圓孔尺寸根據(jù)錨具圓孔確定（錨具3孔），墊板的圓孔外徑等于錨具圓孔外邊距；錨板尺寸300*300*25(mm)，錨板中間圓孔尺寸根據(jù)錨具圓孔確定（錨具2孔），墊板的圓孔外徑等于錨具圓孔外邊距。shall be plied with. 、錨桿抗拔：待腰梁施工完畢立即進行養(yǎng)護，且腰梁、錨桿混凝土強度達到80%后才能進行錨桿抗拔實驗檢測； Tensile testing of anchor: The curing work shall be carried out at once after the pletion of intermediate beam construction and the tensile testing of anchor could be conducted after the concrete strength of intermediate beam as well as anchor up to 80%.錨桿檢測實驗按下列規(guī)范進行：The anchor test shall be performed conforming to the following standards:（3） 、錨桿成孔工藝3. Boreforming Process of Anchor錨桿施工工藝流程圖：Anchoring Construction Process Flow Chart、技術(shù)參數(shù)： Technical Parameters:在土方開挖或回填施工的同時，留設(shè)錨桿工作面（錨位以下500mm）。Reserve anchor working area(500mm below anchoring point) while excavating or backfilling of earthwork. Airdriven downhole hammer construction technology shall be adopted for prestressed anchor whose length is 1520m and anchorage length is about 58m.、風(fēng)動潛孔錘施工方法 . Airdriven Downhole Hammer Construction Method 、根據(jù)設(shè)計圖紙要求，測量人員測定錨桿孔的孔位，打入標(biāo)樁，注明錨孔編號（詳見附圖一、二、三）。檢查合格后再進行施工。錨桿孔施工選用優(yōu)博林868型錨固鉆機，錨孔直徑約φ150mm，設(shè)計錨孔深度為58m，與水平夾角25度成孔。 The technical parameter of anchor hole is based on the geological condition of the drilled location.、鉆壓：鉆孔過程中，鉆壓保持平穩(wěn)，不得隨意增減壓力。松散土層及破碎巖石中采用低轉(zhuǎn)數(shù)，完整基巖中鉆孔中適當(dāng)提高轉(zhuǎn)數(shù)。 During the drilling proceed, remove the residue timely and keep the inside hole smooth.、主要施工方法： Main Construction Methods 、坡面修整 Clean Surface of Slope錨桿施工前，首先用人工及時按照從上而下分層修坡。完成每層坡面開挖后，若為土質(zhì)坡，及時用彩條布覆蓋，防止雨水沖刷邊坡。Anchor hole shall be drilled after pleting foundation excavation of intermediate beam and ensuring that geological condition of slope can meet the requirement of anchor construction.、錨孔測放 Anchor Hole Measure and Setting out根據(jù)實際坡面，先按設(shè)計布置要求，將錨孔位置準(zhǔn)確測放在坡面上，并用紅油漆在現(xiàn)場施工部位標(biāo)明錨桿開孔位置（詳見附圖一）。對測放并驗收合格的錨孔位置進行編號，并用油漆標(biāo)示在現(xiàn)場坡面上，該編號作為錨桿制作編號的依據(jù)。In order to improve drilling efficiency and guarantee drilling quality, type 868 Youbolin anchorage drilling rig