【文章內(nèi)容簡介】 及規(guī)范，向施工人員進行工程內(nèi)容交底，使施工管理和作業(yè)人員了解掌握施工方案、工藝要求、工程內(nèi)容、技術標準、施工程序、工期要求、安全措施等 ,做到心中有數(shù) ,施工有據(jù)；施工階段由經(jīng)理部技術人員對該分項工程進行工程結(jié)構(gòu)、工藝標準、技術標準及安全措施的交底；現(xiàn)場技術交底由作業(yè)層技術人員向領工員、工班長交底。 施工技術交底，以書面交 底為主，包括結(jié)構(gòu)圖、表和文字說明。交底資料必須詳細準確、直觀、符合施工規(guī)范和工藝細則要求 ,并經(jīng)第二人復核確認無誤后交付使用，交底資料妥善保存?zhèn)洳椤? 項目 鋼支撐軸線豎向偏差 支撐曲線水平向偏差 支撐兩端的標高差和水平面偏差 支 撐 撓曲度 橫撐與立柱的偏差 允許值 177。 30mm 177。 30mm ≤ 20mm、≤ 1/600L 不大于1/1000L ≤ 30mm 武漢市軌道交通 11號線三標段 未來一路站 鋼支撐安裝和拆除施工 方案 12 ③關鍵工序?qū)嵤┣耙幹圃敿毜墓に嚰殑t及作業(yè)指導書，并有明確的技術要求和質(zhì)量標準。 ④ 項目部定期組織技術人員、質(zhì)檢人員、工班長、領工員等對施工現(xiàn)場進行檢查，找出在施工存在的問題，分析原因，并及時改正。 （ 3）技術質(zhì)量控制要點 ① 嚴禁拖延第一道砼支撐的施工時間。第一層土方開挖后尚未支撐前，樁頂處水平位移隨無支撐暴露時間的延長而增大。要 及時施做混凝土支撐，避免影響周圍環(huán)境的安全。 ② 鋼支撐施工要緊隨挖土作業(yè)，隨挖隨撐，無撐挖土時間控制在 8小時以內(nèi)，不允許延誤，各層土必須遵循先撐后挖抽槽開挖支撐原則。 ③ 圍護結(jié)構(gòu)不平處須用風鎬修平，鋼圍檁與圍護結(jié)構(gòu)必須密貼，禁止墊木板，空隙處用快硬細石砼填充。鋼支撐端面和圍護結(jié)構(gòu)接觸面應垂直和平整。 ④ 鋼支撐在起吊就位前須進行試拼裝（對直線性不好的支撐組合禁止），并按設計長度拼裝連接好，用 25t汽車 吊 配合 16t 龍門吊 整體起吊安裝。 ⑤ 支撐牛腿關系重大，焊工需經(jīng)過專業(yè)培訓獲得證書，焊接定人定責，陰雨天須 設可靠防雨蓬。必須派專人檢查焊接質(zhì)量，特別是對下口焊接質(zhì)量的檢驗，應特別重視。 ⑥ 直支撐要沿圍護結(jié)構(gòu)法線方向設臵，應對每道支撐的軸線位臵進行準確定位，支撐前再依次放出每根支撐位臵。 ⑦ 支撐安裝后要注意實時監(jiān)測、觀察。 ⑧ 對施加預應力的油泵 裝置 要經(jīng)常檢查，以確保應力值的正確性與穩(wěn)定性，每根支撐撐好后，在 12～ 14 小時內(nèi)觀察預應力損失及圍護結(jié)構(gòu)的水平位移情況，當晝夜溫差過大導 致支撐預應力損失時，立即在當天低溫時段復加預應力至設計要求值。 ⑨ 下道支撐預應力的施加，會導致上道支撐應力值的減小，此時應根據(jù)監(jiān)測 單位提供的數(shù)據(jù)適當補加軸力。 （ 4） 防支撐失穩(wěn)措施 ① 在基坑開挖過程中，邊開挖邊架設工字鋼或型鋼連系桿件及鋼支撐，連接處要可靠，減少長細比，確保支撐體系穩(wěn)定。 ② 支撐拼接采用扭矩扳手，保證法蘭螺栓連接強度。拼接好支撐須經(jīng)質(zhì)檢工程師檢查合格后方可安裝。對千斤頂、壓力表等加力設備定期校驗，并制定嚴格的預加力操作規(guī)程，保證預加軸力準確。 武漢市軌道交通 11號線三標段 未來一路站 鋼支撐安裝和拆除施工 方案 13 ③ 按照監(jiān)測方案要求設臵軸力監(jiān)測斷面，當支撐軸力超過警戒值時，立即停止開挖，加密支撐，并將有關數(shù)據(jù)反饋給設計部門，共同分析原因，制定對策。 6 安全文明施工及消防措施 (1） 項目部專職安全員對現(xiàn)場施工人員進行安全教育和安全技術交底。 (2）加強防火管理，現(xiàn)場有足夠的消防器材，防止火災發(fā)生。 (3）加強安全用電管理，現(xiàn)場禁止使用裸線，不得私架電線，加強用電線路和電焊機使用的檢查，尤其是要在大風雨后對供電線路進行檢查，防止漏電等現(xiàn)象發(fā)生。 (4) 施工時注意對監(jiān)測裝置的成品保護。 (5)焊接作業(yè)人員必須持證上崗 ,嚴禁無證操作 ,焊機必須采用接地和漏電保護裝置 ,以保證操作人員安全。 (6)鋼支撐的設置時間必須嚴格按設計情況掌握，土方開挖時應分段分層，按基坑開挖深度及開挖時間及時架設鋼支 撐。 (7)基坑開挖過程中要防止挖土機械碰撞支撐體系，并注意不得在支撐上加載，以防支撐失穩(wěn)造成事故。 (8) 作 業(yè) 人 員 進 入 現(xiàn) 場 施 工 必 須 正 確 偑 戴 安 全 帽 。武漢市軌道交通 11 號線三標段 未來一路站 鋼支撐安裝和拆除施工 方案 14 （英文版 ） Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of prehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen innerparty supervision of major initiatives. The two regulations supporting each other, the code adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard。 rule around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on vertical gauge, draw the party anizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process。 the second part is the interpretation of the two fundamental principles of the revision of laws and regulations in the party。 the third part introduces two party regulations modified the main changes and needs to grasp several key problems。 the fourth part on how to 武漢市軌道交通 11 號線三標段 未來一路站 鋼支撐安裝和拆除施工 方案 15 grasp the implementation of the two regulations of the party. code and Regulations revised the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and Chinese Communist Party discipline and Punishment Regulations column 1 by 2020 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooling the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation。 follow the correct direction, grasp the limited goals, adhere to the party39。s leadership, to solve the masses of the people reflect a focus on the problem. The new revision of the code and rule , reflects the party39。s 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the party39。s eighteen years prehensive strictly practice. (a) revised two regulations of the party need of the ICAC guidelines 武漢市軌道交通 11 號線三標段 未來一路站 鋼支撐安裝和拆除施工 方案 16 in in 1997 Leaders as members of the Communist Party of China clean politics certain criteria (Trial) based on revised, the promulgation and implementation of January 2020, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage the party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too plicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice。 the second is concisely positive advocated by the lack of prohibited provisions excessive, no autonomy requirements。 the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat。 the fourth is to clean the theme is not prominent, not for the existing problems, and is narrow, only needle of countylevel leading cadres above. rule is in 1997 Chinese Communist Party disciplinary cases (Trial) based on revision, in December 2020 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with th