z填方段拱形骨架護(hù)坡施工技術(shù)交底(修改)

1、Good is good, but better carries it.精益求精，善益求善。z填方段拱形骨架護(hù)坡施工技術(shù)交底(修改)填方段拱形骨架護(hù)坡施工技術(shù)交底填方段拱形骨架護(hù)坡施工技術(shù)交底一、 交底目地 使項(xiàng)目部技術(shù)員和施工人員清楚填方骨護(hù)坡的施工流程和工序要求，明白施工質(zhì)量控制要求，現(xiàn)場技術(shù)員要加強(qiáng)技術(shù)指導(dǎo)和書面技術(shù)交底（測量數(shù)據(jù)），施工隊(duì)要嚴(yán)格按設(shè)計(jì)和技術(shù)交底組織施工，杜絕因不清楚工序流程和質(zhì)量要求出現(xiàn)窩工、返工情況，造成損失的要根據(jù)相關(guān)管理辦法和現(xiàn)場情況進(jìn)行處罰，并承擔(dān)相應(yīng)損失。 填方段路基骨架防護(hù)施工前認(rèn)真核對設(shè)計(jì)圖紙，現(xiàn)場確認(rèn)防護(hù)形式、段落，不能確認(rèn)或現(xiàn)場實(shí)際與設(shè)計(jì)不符時(shí)，現(xiàn)場技

2、術(shù)員要及時(shí)與工程部聯(lián)系確認(rèn)。二、 拱形骨架護(hù)坡 1、基本要求：石料規(guī)格符合要求（厚度大于15cm，嚴(yán)禁采用風(fēng)化石料）；水泥、砂、水符合規(guī)范要求，施工配合比符合要求；表面平整，無垂直通縫；勾縫平順無脫落。 2、場地和砂漿拌合要求 砂堆放場地必須硬化處理；水泥堆放處必須硬化處理，水泥存放要有防雨防潮措施，防止水泥硬化結(jié)塊。 砂漿要求機(jī)械拌合，嚴(yán)禁人工拌合砂漿（勾縫除外）。砂漿要求按試驗(yàn)配合比拌合，每盤稱重計(jì)量；要求現(xiàn)場必須有配合比標(biāo)示牌、磅秤、小斗車等計(jì)量工具。 施工處砂漿必須堆放在鐵皮上，嚴(yán)禁砂漿直接堆放在土地面上。砂漿必須在初凝前使用完，已經(jīng)初凝的砂漿嚴(yán)禁使用，必須廢棄處理。 3、漿砌基礎(chǔ)施工

3、 拱形骨架護(hù)坡基礎(chǔ)為M7.5漿砌片石；施工放樣每10m，先根據(jù)設(shè)計(jì)線位放出路面邊線樁，根據(jù)設(shè)計(jì)路面邊緣位置（線位和標(biāo)高符合設(shè)計(jì)）和設(shè)計(jì)邊坡值，利用坡度尺掛出邊坡坡線，邊坡坡線與路基填方原地面的交匯處既是路基坡腳線，如因邊坡清理不到位，可采用在坡面掏槽方法確定坡腳線；坡腳線確定后，根據(jù)設(shè)計(jì)護(hù)坡基礎(chǔ)尺寸進(jìn)行基坑放樣，開挖和修整基坑?；踊滓M(jìn)行夯實(shí)處理，基坑尺寸不能小于設(shè)計(jì)基礎(chǔ)尺寸，基坑報(bào)監(jiān)理檢驗(yàn)合格后才能砌筑片石。 漿砌片石砌筑時(shí)要求掛線砌筑，保證設(shè)計(jì)尺寸和位置；漿砌片石要求座漿分層砌筑施工，砌縫寬度2-4cm，嚴(yán)禁灌漿施工，每工班應(yīng)按要求制取試件。沉降縫每14米（沉降縫中心間距）設(shè)置一道，縫

4、寬2cm，采用瀝青麻絮填塞，沉降縫應(yīng)貫通基礎(chǔ)和坡面防護(hù)。 邊坡坡面50cm高度應(yīng)掛線施工，保證砌體大面平整。工作面接茬應(yīng)進(jìn)行清掃和灑水濕潤后，才能繼續(xù)砌筑。 漿砌片石基礎(chǔ)砌筑后土工布覆蓋灑水養(yǎng)生7天，質(zhì)量控制要求為：斷面尺寸不小于設(shè)計(jì)，坡面漿砌厚度不小于設(shè)計(jì)（30cm），漿砌片石表面平整度不大于3cm，坡面符合設(shè)計(jì)邊坡值，砂漿強(qiáng)度符合設(shè)計(jì)值。4、漿砌骨架預(yù)制塊及坡面漿砌片石 拱形骨架混凝土預(yù)制塊已在預(yù)制場集中預(yù)制，現(xiàn)場技術(shù)員要根據(jù)段落長度和邊坡高度計(jì)算數(shù)量，施工隊(duì)要及時(shí)與預(yù)制場聯(lián)系，電杜），預(yù)制塊進(jìn)場后要集中存放，不能隨意亂堆亂放。 為保證骨架護(hù)坡尺寸和位置符合設(shè)計(jì)，

5、整體美觀，在施工前需要按圖示尺寸和規(guī)格制作模架。 施工放樣嚴(yán)格按圖示尺寸進(jìn)行放樣掛線，坡面掛線必須由路面邊緣按設(shè)計(jì)標(biāo)高，依據(jù)坡度尺向坡面下掛線。（尺寸單位：cm）放樣掛線：放樣掛線后，依據(jù)掛線位置安裝鋼筋模架，當(dāng)?shù)撞縃值小于335cm時(shí)，可將上一級拱形直邊向下延伸與基礎(chǔ)頂面相交即可。安裝完模架后，人工清除模架外的邊坡土方，清理厚度30CM，一處沉降縫寬度全部清理完成后，報(bào)驗(yàn)護(hù)坡基槽；合格后可由下至上沿模架邊緣砌筑預(yù)制塊，同時(shí)砌筑片石護(hù)坡。 預(yù)制塊砌筑要選用完整無破損的，砌縫寬度2cm，預(yù)制塊高度方向埋入坡面內(nèi)深度保證30cm，在最下一級拱形骨架直邊延長段，可根據(jù)實(shí)際長度裁切直線預(yù)制塊。 在漿砌

6、預(yù)制塊的同時(shí)，及時(shí)施工骨架漿砌片石，以穩(wěn)固預(yù)制塊。漿砌片石應(yīng)由坡頂掛線，保證厚度不小于設(shè)計(jì)（30cm）和平整度（3cm），砌筑工藝采用座漿砌筑，嚴(yán)禁灌漿施工，砌縫寬度2-4cm，防止豎直通縫和瞎縫（砌縫寬度為0）。骨架護(hù)坡頂面標(biāo)高為路床頂面，應(yīng)嚴(yán)格控制（±2cm），已砌筑完成的段落應(yīng)灑水養(yǎng)生7天以上。5、勾縫 勾縫前對漿砌砌體砌縫要進(jìn)行鑿除清理，保證勾縫嵌入砌體內(nèi)不小于2cm，勾縫砂漿不應(yīng)高于漿砌砌體表面，要求全部采用凹縫，勾縫完成灑水養(yǎng)生不小于7天。6踏步施工 按圖紙要求，人行踏步布設(shè)間距為80-100m一道，根據(jù)實(shí)際情況在每7個(gè)沉降縫處設(shè)置一處踏步，踏步設(shè)置在沉降縫處，寬度60c

7、m。 踏步為漿砌片石，基礎(chǔ)要求放出坡腳線后施工，踏步坡面也要由路面邊緣頂掛出坡面先后掏槽砌筑，砌筑要求同骨架護(hù)坡，注意踏步尺寸和砌體厚底，踏步表面采用砂漿抹面處理。7、坡面填土 對拱形骨架內(nèi)邊坡土面進(jìn)行修整，保證設(shè)計(jì)坡面。原設(shè)計(jì)圖骨架內(nèi)為植草，但目前仍未確定，暫不施工。8、與涵洞八字墻相交處 16Establishment of the patriotic Health Committee, the implementation of Division of responsibility, school of health management. , Room, group, grade sc

8、hool health work of grass-roots organizations, is responsible for the Department of health management. All classrooms, offices and other indoor sanitation, daily cleaning, keep the floor, table, wall clean table, cupboards, chairs and all the appliances in order and clean. No graffiti, doors and Win

9、dows and bright. Lectern, Blackboard in the classroom clean and tidy. School sanitation, according to the Division of school health area of responsibility, responsibility to do: a small sweep a day a week a big sweep, neat and clean, no paper, no spam, no weeds, no sewage, no bags, no Peel. Personal

10、 hygiene: education students to cultivate "five", "six nots" personal hygiene habits. Five: time schedule, to brush your teeth before going to bed, to change clothes, bathe, and frequently washing hands before meals and after nails Barber,. "Six" not to drink unboiled w

11、ater, do not eat unclean food, no smoking, no spitting, no snacking, no public towels, cups. Pay attention to eye health, read and write positions lying upright, not reading, not in the light of local walking and reading, doing eye exercises and timely correction of eye disease, regular rotation zuo

12、ci. Gym class, working class, to strengthen students ' safety education, comprehensive physical examination once a year on students, included in the profile. Improving food hygiene: to improve sanitation and hygiene, implementation of the food hygiene regulations, to ensure food hygiene, ensure

13、the physical and mental health of teachers and students. Eliminating four pests, preventing disease: promptly clean up the garbage, sewage, preventing mosquito breeding places, cleaned up the garbage, make sure and clean. Strengthen health publicity poster out in time to publicize health knowledge,

14、use of the health education health education to students. And eye exercises, mental health education during the consultation process, held in common, multiple lectures on epidemic prevention. Health inspection rating system: head teacher, classroom teacher, Member of the class of health checks, moni

15、tor the implementation of environmental health and eye exercises every day. Check rankings of school organizations to inform the inspection results. Check every Monday, one month, one to summarize, according to the inspection results issued health flow red flags. Six disease prevention to prevent my

16、opia? When sitting up, head tilted, eyes 33 cm from the book. Eat, walk, bus reading, not too strong, too weak to light reading. Write not too small too close, do not write typo, grass hand. Reading time and a half to 1 hour, you should rest for a few minutes. Controlling the number of TV and time,

17、a distance of 2.5 metres. Pay attention to nutrition, food supplements containing vitamin a. How to prevent tooth decay? To develop good hygiene habits, way of brushing our teeth, mouthwash, before going to bed without eating snacks. Improve the ability of anti-caries of the teeth, acid toothpaste with fluoride. Eat less sugar, eat a lot of food to prevent tooth decay, such as milk and