混凝土及養(yǎng)護技術交底.doc

this type of operation for the safety technology. Without education and training in safety knowledge, shall not enter the construction site operations. To enter the construction site, you must wear a helmet, buckle chinstrap. Work at two meters high and must be fastened. When working at height, are not allowed to throw down or up the materials and tools and other objects. Persons not engaged in electrical and mechanical, prohibited the use of mechanical and electrical equipment. Building materials and components to be tidy and secure, shall not exceed the relevant provisions. Hazardous areas should be clearly marked, protective measures should be taken at night to set up a red light warning. In the operation, should adhere to their jobs, drunken operation is strictly prohibited. Special operations personnel (electricians, welders, boiler operators, blasters, lifting grid and pile drivers and commanding, shelf workers, machines, motor vehicle drivers, and so on) must be operating permits from the relevant sector professional training examinations, independent operation, operation focus, not to leave. Construction site prohibited to wear slippers, heels, skirt, sliding and studded shoes and barefoot, shirtless, and so on. Construction site of the scaffold (prohibition of the use of bamboo and wood materials setting), protective equipment, safety signs, warning signs, scaffolding wall may be supplemented, removed and need to be removed must be reinforced by the contractors agree. Construction site of the four (openings, stairs, lift head, hole) and the five-limb (balcony, framing, roofing, run (oblique) road and unloading platforms), protective measures and clearly marked. Are not allowed to sit at the feet of . Nails should be promptly removed. Drywall cut bricks are cut, no outside chopping. Preventing broken tiles fall hurt. Tools must always be mounted after good tool bag. In the Derrick (gantry) travel; in the Derrick (gantry) increased security measures are not taken to the following cleaning mortar, concrete and other debris; hanging baskets for a long time is not allowed to stop the air; after work basket must be placed in the ground, and cut off the power and lock box. Scaffolding on the Frost, snow, mud, and building waste time cleaning. Both ends of the scaffold to fasten to prevent probe Panel. Danger of overloading the scaffold: laying per square foot scaffold distributed load shall not exceed 270KN, piled up on the scaffold standard bricks of single side three storeys high. Wall removal of dangerous scaffolding; Sat down to rest on the guard rail danger; Set, dismantling scaffolding, Derrick (gantry) high, edges, vacant jobs, such as not wearing a seat belt at risk. Upper part of the ladder to fasten, antiskid measures are required in the lower part. Upper part of the ladder to hang, and lower banding. Ladder to fasten in the Middle, lower to have a non-slip steps, are not allowed to sit on it, riding moves. Altitude: personnel engaged in the Spider-man,stavebn tm vdce mst een. een by mlo zahrnovat analzu rizik, monost nehod charakteristik a nouzovch postup, nouzov zpracovn a obsah opaten. 4, integrovan pohotovostn plny, speciln havarijn plny a mst een by mly bt mezi sebou a s ostatnmi jednotky zapojeny v nouzi, kter jsou vzjemn propojeny. 5, havarijn pln by ml zahrnovat havarijn personl a organizace kontakt, nouzov rezervn seznam a dal informace. Informace by mly bt pravideln aktualizovny a zajist, e informace jsou pesn a platn. tyi, havarijn pln revize 1, Recenze pohotovostn plny pezkoumn formul a prvky pezkumu a opaten pijatch dvma zpsoby. Kdy host slou pedevm pro havarijn plny pro zznam v podob Recenze, prvek hodnocen pro nouzov hodnocen. . Kd pro porn ochranu konstrukce budov a nsk republice ny exploze nebezpen oblasti elektrick bezpenostnch pedpis a pedpis o porn ochranu design rafinaci ropy a chemickch podnik, napklad poadavky na pedpisech a nazench. 2. pi provdn instalace me zpsobit por, exploze, kter sti by mly bt pln nastaven peht, petlaku, micch pstroj, alarm (zvuk a svtla). 3. kde je holav plyn (pra) me unikat , holav plyn koncentrac detekce, alarm by mla bt nastavena. 4. vechny komunikoval s holav, vbun zazen s inertnm plynem, plynov penosov potrub, by mla bt nastavena zabrnit holavch a vbunch ltek do zazen, ale nemla bt samostatn zptn ventil. 5. holav plyn (pra) nastavit plamen svodi odvzduovac vvod, snadno pracovat, kde se zastavit ventily, aby pi vstupn vtrac potrub je v plamenech, peruil por plynu odvzduovac potrub ml bt nainstalovn v nejni hasicho zazen. 6. kdy dopravu holavch materil by mla odpovdat prmru potrub a stedn mrn odpor, sprvn zen prtoku, co nejvce se vyhnout statick elektiny. Antistatick opaten, jako jsou zazen, potrub, by mlo bt v souladu s technickmi pedpisy pro uzemnn design pro chemick podniky pslunch ustanoven. 7. nhl vbun petlaku nebo rychlho rozkladu vrobnch zazen nebo skladovacch zazen by mly bt vybaveny vbuchu (nevbun membrna), vvoz nonel trubice smrem k bezpenosti a aby prevence sekundrnch exploz, protiporn opaten. 8. vrobnthe principle of simplified EIA of construction projects in the region. In terms of land, linked to the implementation of urban and rural construction land increase and decrease, replacement indicators for priority areas project. Charges, into the projects of water, electricity, administrative charges and preferential policies. In the area of taxation, and settled in areas of industry and its production company, within 5 years after the completion of fiscal incentives to enterprises. In terms of financing, integration of land, tax, financial and other resources, and construct Government credit + business credit credit system, establishment of marketization, commercialization and modernization of the investment and financing platform; effective Bank-enterprise docking, encourages private capital into the Park, to raise industry development fund. 5, optimize the environment and service industries. To create policy lowlands, Highlands, integrity of service land, development land as the goal, to optimize the area under development environment. All administrative law enforcement departments to appoint a full-time personnel stationed in areas dedicated to coordinating and solving problems associated with businesses in this sector. When there are substantial issues, sector leaders arranged to personally intervene, in-person, in-person push tangible area building a green light, easy line. To further reduce and standardize administrative examination and approval items, simplify examination and approval links, improve efficiency; according to the .Since the educational practice of the mass line of the party, himself seriously in the education, practical control central eight rules and opposing the four winds and practicing three Suns, and check the spirit of Jiao Yulu, ideology, solicit opinions based on outstanding problems checked swing, careful analysis and reflection. Will now check report is as follows: first, adherence to the partys political discipline, eight in the central provision, change the style of the basic situation of 1, in compliance with the partys political disciplines. Conscientiously abide by the partys political discipline, abide by the Constitution and the rules and regulations of the party, in the political, ideological and maintain highly consistent with the CPC Central Committee on the action, there is no violation of the partys political discipline problems. 2, in the implementation of the central authorities of the eight provisions. Improving research, improving research methods, but there are less grass-roots units, primary first-hand an inadequate grasp of the problem, which is to be strengthened in the future. Second, construction, strictly in accordance with the provisions to streamline and improve the quality of meetings of the Conference. Third, streamlining file briefs, culture involves all aspects of propaganda and ideology, sometimes due to the practical needs of invention notifications, this area needs further混凝土及養(yǎng)護技術交底混凝土結構應采用由水泥、外加劑、礦物摻合料、砂、石和水配制的混凝土?；炷凉こ陶绞┕で埃O備物資部和試驗室應共同完成原材料的選定、復檢工作，并應充分考慮試驗周期和可能出現的原材料變化，在開工前要確定施工配合比，拌制的混凝土要符合客運專線高性能混凝土暫行技術條件的要求。在正式生產T梁之前，應進行混凝土試澆筑，以便對混凝土配合比、施工工藝、施工機具的適應性進行檢驗，發(fā)現問題及時調整。一、混凝土原材料的選用拌制混凝土原材料的選用必須滿足客運專線高性能混凝土暫行技術條件里的各項原材料的技術要求。水泥采用濮陽同力P.O52.5水泥,在儲存過程中應采取措施降低水泥的溫度或防止水泥升溫，細骨料采用信陽砂場的中砂，細度模量2.63.0，粗骨料采用鶴壁淇縣520mm連續(xù)級配。使用的礦物摻合料為安陽中海的礦粉。外加劑采用山東華偉高效減水劑?；炷恋母鞣N原材料采用固定存放地點，有明確的標識 一 混凝土的攪拌和輸送1、混凝土的攪拌混凝土攪拌前應嚴格測定粗細骨料的含水率，準確測定因天氣變化而引起粗細骨料含水量的變化，以便及時調整混凝土的施工配合比，保證混凝土坍落度符合設計要求，一般情況下每班抽測2次，雨天應隨時抽測。攪拌混凝土采用強制式攪拌機，計量器具應定期檢定，攪拌機經大修和中修后，計量器具應重新進行檢定?；炷恋陌韬蛻獓栏癜凑张鷾实氖┕づ浜媳葴蚀_稱量混凝土的原材料，其中設計配合比為：（水泥）400：（細骨料）692：（粗骨料）1038：（粉煤灰）50：（礦物摻和料）50：（外加劑）6.5：（水）155，其最大的允許偏差應符合下列規(guī)定：膠凝材料（水泥、礦物摻和料等）1%；外加劑1%；粗、細骨料2%；拌和用水1%。自全部材料裝入攪拌機開始攪拌起，至開始卸料時止，延續(xù)攪拌混凝土的最短時間經試驗確定，一般控制在120s左右。在下盤材料裝入前，攪拌機內的拌和料全部卸清。攪拌設備停用時間不超過30min，最長不超過混凝土的初凝時間。炎熱季節(jié)，澆筑溫度是高性能混凝土質量控制的重要環(huán)節(jié)。高性能混凝土的澆筑溫度應控制在30以內，為此，混凝土攪拌時可采取以下幾項措施。 用冷卻水或加冰屑拌合； 存料場進行遮陽防曬保護，至少在使用前不受烈日暴曬，必要時可采用冷水淋灑，使其蒸發(fā)散熱； 避免使用較熱的水泥； 攪拌站搭設鋼結構房屋對攪拌機等進行防護。冬季攪拌混凝土前，應先經過熱工計算，并經試拌確定水和骨料需要預熱的最高溫度，以滿足混凝土最低入模溫度（5）要求。應優(yōu)先采用加熱水的預熱方法調整拌合物溫度，但水的加熱溫度不宜高于80。當加熱水還不能滿足要求或骨料中含有冰、雪等雜物時，也可先將骨料均勻地進行加熱，其加熱溫度不應高于60。水泥、外加劑可在使用前運入暖棚進行自然預熱，但不得直接加熱。2、混凝土的輸送中鐵七局集團鄭州公司柳屯制梁場采用4臺罐車分別為8m3砼、9m3砼、10m3砼、10m3砼、進行T梁混凝土的澆筑，施工過程中應符合下列規(guī)定：（1）砼澆筑施工應根據施工進度安排，加強組織和調度安排，確保連續(xù)均勻供料；（2）不得用插入式搗振棒平拖混凝土或將下料口處堆積的混凝土推向遠處；（3）混凝土一般宜在攪拌后60min內澆筑完畢，且在1/2初凝時間前入模，并在初凝前澆筑完畢；在氣候炎熱等情況下，應采取特殊措施防止混凝土坍落度損失過大；（4）混凝土應保持連續(xù)澆筑，在澆筑過程中不應出現斷砼現象。 二 混凝土的澆筑和振搗混凝土澆筑前，自檢合格后報請監(jiān)理工程師按照設計圖紙核對鋼筋布置及支座安設等預埋件，檢查結構斷面尺寸誤差是否符合規(guī)定，橋梁中線誤差情況，模板接縫情況及表面平整光潔度。以上情況逐項檢查、驗收，合格后方可進行進入下道工序。在頂板鋼筋沿腹板頂部兩側分別鋪至少1m寬蓬布進行遮蓋，避免布料時濺漿污染翼緣摸板。同時在梁體鋼筋較密的兩端部以及其他不好下振動棒位置處，預先插入若干60鋼管深入腹板鋼筋內部以輔助振搗棒插入振搗。在各方施工操作人員及振搗棒安排到位，電路檢查無異常情況下，通知攪拌站開始拌料?；炷猎诎韬险炯邪韬?，混凝土罐車運送至現場，10t門吊吊裝入模，插入式振動棒振搗配合附著式振動器。混凝土自高處傾落混凝土時，臨時調整腹板鋼筋，使混凝土的自由傾落高度滿足不超過2m的要求。派專人量測記錄混凝土入模溫度及澆筑后梁體的芯部溫度?；炷量v向澆筑順序：由T梁一端向另一端連續(xù)澆筑，并就底板、腹板高度,沿結構橫截面以斜坡層向前推進，在斜坡層傾斜角2025，剛開始布料長度2m，厚度約為0.8-1.0m，實際操作以對應底板處翻漿比較明顯時的厚度進行控制?？v向澆筑順序如下圖所示:腹板底板頂板T梁砼縱向澆筑順序圖在此期間，每分段布料一層，就要及時打開附著式振動器進行點振，振動時間約為28s。混凝土分層澆筑，每層3040cm?；炷烈唤浫肽?，立即進行全面的振搗，使之形成密實的均勻體，先由一臺振動棒進行澆筑振搗，緊隨其后由一臺振動棒進行復振，避免出現漏振。振搗延續(xù)時間以混凝土獲得良好的密實度、表面泛漿氣泡消失為準，防止漏振、過振。振搗過程中嚴禁振搗棒觸碰橡膠棒、模板。操作插入式振動棒時宜快插慢拔，振動棒移動距離不得大于振動棒作用半徑的1.5倍（移動間距30至50 cm），每點振動時間約20s30s，混凝土振動棒插入深度以進入前次灌注的混凝土面層下5cm10cm為宜。對于鋼筋、預應力索和預埋鐵件等分布密集、縫隙窄小處，采用30型振搗器振搗，必要時在振搗器前端焊鋼筋輔助振搗，并適當加密振點，振搗過程中派專人檢查，保證混凝土振搗質量。梁體頂板混凝土澆筑完成后立即進行第一次收面處理，之后人工第二次收面將梁體外露面壓毛處理。二次收面完成后立即覆蓋塑料薄膜，待混凝土初凝之后再鋪氈布，并在氈布上面澆水，以濕潤氈布為度?；炷恋臐仓⒁馐马棧?施工前，做好充分準備，施工人員分工明確，施工機械設備提前到位，以保證混凝土連續(xù)快速澆筑?；炷翝仓耙〉门浜媳鹊恼酵ㄖ獑危z查砂、石、水泥，減水劑質量。嚴格控制粗骨料粒徑，堅決不能使用粒徑20mm的碎石，避免在鋼筋密集處出現蜂窩現象，發(fā)現粗骨料粒徑有超標現象應過篩后再使用?；炷翝仓铝暇鶆蜻B續(xù)，在澆筑底、腹板混凝土時，下料口要豎直對中蓋布空隙，貼近頂板鋼筋，吊斗不得在梁體頂面隨意移動，避免松散混凝土留在頂上造成頂板出現蜂窩。附著式振動器開動時間要嚴格控制，要短振勤振。插入式振搗器操作時一定要緊跟布料位置及時進行振搗。振搗過程中避免振搗棒直接振搗模板及橡膠管。施工中要注意與先前澆注的結合部混凝土銜接部分的振搗密實?；炷翝仓^程中派專人加強檢查模板支撐的穩(wěn)定性和接縫的密合情況。防止在振搗混凝土過程中產生嚴重漏漿，出現較嚴重漏漿及時封堵處理。澆筑過程中發(fā)現混凝土的坍落度變化較大，不適宜用于梁體澆筑時要另做處理。夜間施工時要保證充足的照明，保證混凝土振搗質量。澆筑過程中，設備操作人員要熟練操作設備，提高混凝土的輸送能力及澆筑質量，保證混凝土的連續(xù)澆筑。 三 混凝土的養(yǎng)護混凝土養(yǎng)護分為自然養(yǎng)護和蒸汽養(yǎng)護。自然養(yǎng)護一般主要在夏季、秋季進行。晝夜平均氣溫低于5或最低氣溫低于-3時，采用蒸氣養(yǎng)護。蒸汽養(yǎng)護采用封閉保溫的方式將梁體連同模板一起用蒸養(yǎng)棚包裹。1.混凝土自然養(yǎng)護混凝土在澆筑完初凝后（約四小時），采用噴水方式，并及時用棉氈覆蓋養(yǎng)護，梁體灑水并通過棉氈蓄水，保持混凝土表面充分潮濕。自然養(yǎng)護時間不少于14d。灑水養(yǎng)護的次數隨天氣變化而定，澆水次數以混凝土表面保持充分潮濕為宜?；炷琉B(yǎng)護期間，重點加強混凝土的濕度和溫度控制，盡量減少表面混凝土的暴露時間，及時對混凝土暴露面進行緊密覆蓋，減少表面水分蒸發(fā)。2.混凝土蒸汽養(yǎng)護（1）蒸汽養(yǎng)護系統(tǒng)整個蒸汽養(yǎng)護系統(tǒng)由供熱系統(tǒng)、通風系統(tǒng)、養(yǎng)護罩等系統(tǒng)等組成，供熱系統(tǒng)主要包括：鍋爐、蒸汽管道、蒸養(yǎng)管和閥門；通風系統(tǒng)主要包括：風機、風管；養(yǎng)護罩系統(tǒng)主要有：養(yǎng)護罩、支架。在預制場內設鍋爐房，根據熱工計算和蒸養(yǎng)工藝需配備6t/h的蒸汽鍋爐一臺。鋪設蒸汽管道至每個生產制梁臺座，并在其旁邊設置蒸汽管道出氣口，安裝專用的供氣閥以控制蒸汽的輸送速度，用于調節(jié)各管道的蒸汽流量，保證蒸汽的熱量支出和實際需要相符合。在施工前應預設保溫養(yǎng)護棚，養(yǎng)護棚保溫材料可采用雙層篷布或內棉布外篷布的方式。養(yǎng)護棚和支架配合使用形成蒸汽養(yǎng)護空間，保溫棚應包裹嚴密不透風，保溫棚與梁體頂板間應保留一定凈空，四周應有富余量。支架則采用型鋼焊接成的桁架結構，4米為單位，使用時按照T梁的長度進行組合。通風系統(tǒng)：采取分階段分區(qū)域關閉蒸養(yǎng)管閥門，同時啟動通風系統(tǒng)對養(yǎng)護罩內的空氣加強流通，并借助通風系統(tǒng)和外界空氣的熱交換，使溫度慢慢降低至高于室外溫度10時再打開養(yǎng)護棚。蒸汽養(yǎng)護組成見蒸汽養(yǎng)護組成圖。蒸汽養(yǎng)護組成圖主管支管散熱鋼管連接膠管養(yǎng)護罩砂袋支架照明燈具（2）蒸汽養(yǎng)護控制冬季養(yǎng)護采取保溫措施，自然環(huán)境溫度低于5時采用養(yǎng)護劑養(yǎng)護。梁體混凝土蒸汽養(yǎng)護采用養(yǎng)護棚，分靜停、升溫、恒溫、降溫四個階段?；炷琉B(yǎng)護工藝、流程見下圖?；炷琉B(yǎng)護流程圖混凝土養(yǎng)護技術要求：混凝土澆筑完畢后，靜停時，若環(huán)境低于5，則用510低溫預養(yǎng)。蒸汽養(yǎng)護期間，對T梁進行溫度監(jiān)控，定時測定混凝土芯部溫度、表層溫度以及環(huán)境氣溫、相對濕度、風速等參數，并探索其相互關系，恒溫養(yǎng)護期間混凝土芯部溫度不超過60，恒溫養(yǎng)護時間根據梁體脫模強度要求、混凝土配合比情況以及環(huán)境條件等通過試驗確定，約為24小時。蒸養(yǎng)（約36小時）結束后，立即進入自然養(yǎng)護，當環(huán)境濕度在60%以下時澆水28天，60%以上時澆水14天，在環(huán)境溫度低于5時禁止?jié)菜?，使用養(yǎng)護劑養(yǎng)護。靜停時間為4小時（從梁體混凝土全部灌注完畢起計算），靜停時的養(yǎng)護溫度為5以上。升溫速度不超過每小時810。恒溫溫度保持在40范圍內，恒溫時間為24小時左右，以混凝土強度達到30MPa為標準。降溫速度不超過每小時10，拆模時梁體表面溫度與自然環(huán)境溫度之差不得大于15。蒸汽養(yǎng)護結束之后，即對梁體混凝土表面覆蓋灑水進入自然養(yǎng)護階段?；炷琉B(yǎng)護的規(guī)定：1、混凝土澆筑后，12h內即應覆蓋和灑水，直至規(guī)定的養(yǎng)護時間。操作時，不得使混凝土受到污染和損傷。2、當平均氣溫低于5時，應采取保溫養(yǎng)護措施，并不得對混凝土灑水養(yǎng)護。3、混凝土的灑水養(yǎng)護時間應符合表1的規(guī)定.灑水次數應以混凝土表面保持濕潤狀態(tài)為度。養(yǎng)護用水應與拌制用水相同。表1水泥品種相對濕度60（干燥環(huán)境）6090（較濕環(huán)境）90（濕潤環(huán)境）硅酸鹽水泥、普通硅酸鹽水泥147可不再另灑水養(yǎng)護礦渣硅酸鹽水泥、火山灰質硅酸鹽水泥、粉煤灰硅酸鹽水泥、復合硅酸鹽水泥2114 注：當采用其他品種水泥時，養(yǎng)護時間應另行確定。4、當新澆筑的混凝土與流動的地表水或地下水相接觸時，應采取臨時防護措施，直至混凝土達到50以上的設計強度為止，并不得小于7d。5、當環(huán)境水具有侵蝕作用時，臨時防護措施應延續(xù)到混凝土達到75以上的設計強度為止，并不得小于10d。6、當采用涂刷薄膜養(yǎng)護劑養(yǎng)護時，養(yǎng)護劑應經過實驗確定，并制定操作工藝。7、當采用塑料布覆蓋養(yǎng)護時應將剛澆完的混凝土表面用塑料布覆蓋嚴密。塑料布內應具有凝結水，并應經常檢驗。8、當新澆筑的混凝土的強度未達到1.2MPa以前，不得在其表面來往行人或架設上層結構用的支撐和模板等設施。 四 混凝土工崗位責任1、遵守梁場勞動紀律，不遲到，不早退，遵守場規(guī)場紀和規(guī)章制度。2、嚴格執(zhí)行工程部編制并經梁場總工程師審核、同意的混凝土作業(yè)指導書和安全操作規(guī)程進行砼施工，要有高度責任感，嚴格按施工工藝、技術交底和作業(yè)標準進行作業(yè)，優(yōu)質高效地完成箱梁預制生產任務，確保箱梁質量。3、上班前檢查各種工具、機具是否完好，下班前清點清洗工具、機具、清掃工作場地，做好交接班記錄，做到現場文明施工。4、熟練掌握高性能混凝土的振搗、養(yǎng)生等施工程序及施工配合比，合理使用材料，降低產品成本。5、施工前要檢查用電安全措施，檢查機具、機械運轉是否正常，發(fā)現問題，立即處理，不得帶病作業(yè)。this type of operation for the safety technology. Without education and training in safety knowledge, shall not enter the construction site operations. To enter the construction site, you must wear a helmet, buckle chinstrap. Work at two meters high and must be fastened. When working at height, are not allowed to throw down or up the materials and tools and other objects. Persons not engaged in electrical and mechanical, prohibited the use of mechanical and electrical equipment. Building materials and components to be tidy and secure, shall not exceed the relevant provisions. Hazardous areas should be clearly marked, protective measures should be taken at night to set up a red light warning. In the operation, should adhere to their jobs, drunken operation is strictly prohibited. Special operations personnel (electricians, welders, boiler operators, blasters, lifting grid and pile drivers and commanding, shelf workers, machines, motor vehicle drivers, and so on) must be operating permits from the relevant sector professional training examinations, independent operation, operation focus, not to leave. Construction site prohibited to wear slippers, heels, skirt, sliding and studded shoes and barefoot, shirtless, and so on. Construction site of the scaffold (prohibition of the use of bamboo and wood materials setting), protective equipment, safety signs, warning signs, scaffolding wall may be supplemented, removed and need to be removed must be reinforced by the contractors agree. Construction site of the four (openings, stairs, lift head, hole) and the five-limb (balcony, framing, roofing, run (oblique) road and unloading platforms), protective measures and clearly marked. Are not allowed to sit at the feet of . Nails should be promptly removed. Drywall cut bricks are cut, no outside chopping. Preventing broken tiles fall hurt. Tools must always be mounted after good tool bag. In the Derrick (gantry) travel; in the Derrick (gantry) increased security measures are not taken to the following cleaning mortar, concrete and other debris; hanging baskets for a long time is not allowed to stop the air; after work basket must be placed in the ground, and cut off the power and lock box. Scaffolding on the Frost, snow, mud, and building waste time cleaning. Both ends of the scaffold to fasten to prevent probe Panel. Danger of overloading the scaffold: laying per square foot scaffold distributed load shall not exceed 270KN, piled up on the scaffold standard bricks of single side three storeys high. Wall removal of dangerous scaffolding; Sat down to rest on the guard rail danger; Set, dismantling scaffolding, Derrick (gantry) high, edges, vacant jobs, such as not wearing a seat belt at risk. Upper part of the ladder to fasten, antiskid measures are required in the lower part. Upper part of the ladder to hang, and lower banding. Ladder to fasten in the Middle, lower to have a non-slip steps, are not allowed to sit on it, riding moves. Altitude: personnel engaged in the Spider-man,ch zazen, budov a konstrukc, tanky a jin zsuvky prmyslov vody, krom ustanoven vodu tak, by mlo bt instalovno v oblasti s vodou k utsnn vrtu, uzavrac ventil, aby se zabrnilo velk mnostv holavch a vbunch materil do kanalizace. 9. pouit v holavch, vbunch plyn pojistn ventil a vtrac potrub, je nutn export trubice je umstn mimo a vy ne 2 metry nad budovou. 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