【正文】 Spray sufficient water to concrete for curing to ensure the quality of the intermediate beam after pletion of intermediate beam casting.、錨桿張拉、鎖定、檢測及封錨 Anchoring Tension, Locking,Test and Seal 當漿體及腰梁、錨梁的混凝土強度等級達到設(shè)計強度的80%后進行張拉。(3) Set a φ48 * 35mm isolation stent along the length of the anchor every2000mm(see Attachment 4, 5), install the bunching line (binding wire) between the adjacent two isolation stent to make anchor fixed. The strand shall not be entangled with each other ,and ensure that the carrier is located in the middle of the hole and the thickness of the protective layer of the anchor is not less than 20 mm.（4） 、錨桿下料完成入孔安裝前，用高壓風(fēng)清孔一次。After pletion of drilling work, the next procedure could be continued only after inspected and qualified accepted by CMEC engineer. Inspection for hole diameter and depth shall be carried out with standard drill rods with the witness of CMEC engineer. Drill shall be propelled smoothly without any impact and vibration during inspection process。出現(xiàn)此類現(xiàn)象進行固壁注漿，漿液為水泥砂漿,24h后重新鉆孔。 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。 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。 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。 2. Site Preparation Drawings and Design Description of the Site Preparation of Gampaha,Attanagalla amp。、絞線2162。 According to requirement of drawing, surveyors measure and determine the location of anchorage hole, hammered it into the relevant pile and indicate serial number of the anchor hole(see Attachment 1,2,3). After pleting the drill machine installation, overall quality inspection shall be performed for position, inclination and levelness of the drill and placement difference of opening bit. Construction shall be continued after the inspection is passed.、錨孔采用風(fēng)動潛孔錘鉆孔施工，能有效地避免沖刷坡體，施工速度快。Exactly measure and set out the anchorage position according to slope, accurately fix drilling machine and strictly adjust the machine’s position to ensure the deviation in vertical and horizontal direction and elevation conform to Chinese standard. Ensure the drilling angle and direction in accordance with Chinese standard.①、鉆孔方式① Drilling Methods錨孔鉆孔采用干鉆，以確保錨固工程施工不至于惡化邊坡巖土工程地質(zhì)條件和保證孔壁的粘結(jié)性能，難以鉆孔時方可采用水鉆。若遇錨孔中有承壓水流出，待水壓、水量變小后方可安裝錨桿與注漿，必要時在周圍適當部位設(shè)置排水孔處理。Prestressed anchor is made up of intermediate beam, free segment, anchorage section and safety section. Adopt pressuredispersed anchor.162。如一次注不滿或注漿后產(chǎn)生沉降，要補充注漿，直至注滿為止。 The installation of the anchorage device shall be closely attached and centering with the bearing plate and jack. The jack axial line, the anchoring holes, the anchoring rods shall be in one line. No bend or deviation to the anchor heads is allowed to make sure the load is even and coaxial. Strength the load by applying a 25cm25cm2cm steel bearing plate.、在錨桿張。即第一次注漿材料和注漿壓力與一般地層相同，第二次注漿為高壓劈裂注漿，待第一次注漿4～5h后，采用M25純水泥砂漿對錨固段進行劈裂注漿，～。鋼絞線沿錨桿體軸線方向每隔2m設(shè)置一道架線環(huán)，保證錨桿體保護層厚度不小于2cm。鉆孔孔壁不得有沉碴及水體粘滯，必須清理干凈，在鉆孔完成后，使用高壓風(fēng)(～)將孔內(nèi)巖粉及水體全部清除出孔外。Based on existing slope surface, position of anchor hole shall be measured and set out exactly and marked by red paint at the construction point according to designed arrangement(see Attachment 1 for details). If uneven slope surface or special geological condition occurred, adjust position of anchor appropriately on premise of getting approval from design unit and ensuring stability of the slope and safety of the structure. Position of anchor holes which have been measured, set out and verified shall be numbered and marked on the slope surface with paint. The serial number shall be regarded as anchorage making evidence . 、鉆孔設(shè)備 Drilling Equipment 為提高鉆孔效率和保證鉆孔質(zhì)量，鉆孔機具采用優(yōu)博林868型錨固鉆機，潛孔沖擊成孔。鉆機安裝好后，進行全面質(zhì)量檢查，檢查鉆機方位、傾角、水平度和開孔鉆頭落點差。. Length of anchor: its length shall be ～ and the anchorage length shall be 5～ depth that the anchor hacked into the original concrete foundation shall be not less than 1m. 、錨桿入射角度：25度 Injection Degree:25 degree、錨桿直徑：150mm Diameter of anchor:150mm、錨桿：采用鋼絞線162。 1. The relevant contents and related technical terms about Site Preparation included in the Bidding Document of Gampaha,Attanagalla amp。Completing the preparation, submitting and approval of related technical documents including construction program and construction starting report, etc。. 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。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。When drilled weathered rock and fracture rock zone, hole collapsing frequentlyStrictly control the position of hole, adjust drill pole to meet the designed horizontal angle and guarantee that horizontal projection of drill pole is perpendicular to pit wall. After get qualified inspection can continue to drill.鉆孔時應(yīng)根據(jù)工程地質(zhì)情況，控制鉆孔速度。(4) Before the anchor installation, the hole shall be cleaned with highpressure air. Rope shall be inserted slowly from the top of the hole by manual.（5） 、錨桿組裝的允許偏差符合中國標準，組裝完成后對錨桿對應(yīng)錨孔進行編號，分類存放在專用場地，并加以防潮、防雨等防銹蝕保護。補償張拉后，從錨具量起，留出長5～10cm鋼絞線，其余部分截去，須用機械切割，嚴禁電弧燒割。Adopt whole castinsitu for the intermediate beam with C30 concrete. The OVM15 anchorage devices shall be installed ,cast, and fixed simultaneously with casting work. To partially adjust the space between the stirrups if the anchors rods interference with the vertical beam stirrups. To guarantee the quality ,more attention shall be paid for vibration when casting especially for the area around the anchoring holes which is full of steel bars.、澆注混凝土前，必須將錨具中的錨墊承壓板按照設(shè)計要