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class="Top w100"> <div id="zbbbnpu2h4x" class="w1000"> <div id="zbbbnpu2h4x" class="meau"> <span id="zbbbnpu2h4x" class="m1"></span> <span id="zbbbnpu2h4x" class="m2"></span> <span id="zbbbnpu2h4x" class="m3"></span> </div> <div id="zbbbnpu2h4x" class="Logo fl"><h1></h1></div> <div id="zbbbnpu2h4x" class="toptel"></div> <div id="zbbbnpu2h4x" class="clear"></div> </div> <div id="zbbbnpu2h4x" class="Nav w100"> <div id="zbbbnpu2h4x" class="Navlist w1000"> <ul> <li id="Top1"></li> </ul> <div id="zbbbnpu2h4x" class="clear"></div> </div> <div id="zbbbnpu2h4x" class="clear"></div> </div> <div id="zbbbnpu2h4x" class="clear"></div> </div> <div id="zbbbnpu2h4x" class="blockindex h450"> <div id="zbbbnpu2h4x" class="new9"> <div id="zbbbnpu2h4x" class="new91"> <h1>危險性較大工程的安全要點要知道??！</h1> 發(fā)布時間：2024-06-02 </div> <div id="zbbbnpu2h4x" class="new92"> <div class="zbbbnpu2h4x" id="contentt"></div> 危險性較大工程的安全要點要知道?。?br> 為規(guī)避危險性較大工程的安全風(fēng)險，施工企業(yè)應(yīng)加強危大工程的分部分項工程安全管理，認(rèn)真落實安全生產(chǎn)規(guī)定和相應(yīng)規(guī)章制度，嚴(yán)格執(zhí)行監(jiān)督，及時總結(jié)相關(guān)安全要點，有效防范較大及以上生產(chǎn)安全事故的發(fā)生。<br> （1）深基坑工程安全要點<br> 1、進(jìn)入施工現(xiàn)場必須遵守安全操作規(guī)程和安全生產(chǎn)紀(jì)律。嚴(yán)格執(zhí)行施工組織設(shè)計和安全技術(shù)措施，不準(zhǔn)擅自修改。<br> 2、基坑開挖前，應(yīng)先檢查了解地質(zhì)、水文、道路、附近建筑物、民房等狀況，做好記錄，開挖過程經(jīng)常觀測變化情況，發(fā)現(xiàn)異常，立即采取應(yīng)急措施。<br> ♡猜你喜歡♡ 房建施工全過程技術(shù)管理控制<br> 3、作業(yè)前要全面檢查開挖的機械、電氣設(shè)備是否符合安全要求，基坑現(xiàn)場排水、降水、集水措施是否落實。<br> 4、作業(yè)中應(yīng)堅持由上而下分層開挖，先放坡，先支護，后開挖的原則，不準(zhǔn)碰損邊坡或碰撞支撐系統(tǒng)或護壁樁，防止坍塌，未支護前不準(zhǔn)超挖。<br> 5、基坑周邊嚴(yán)禁超荷載堆土、堆放材料設(shè)備，不得搭設(shè)臨時工棚設(shè)施。<br> 6、基坑抽水用潛水泵和電源電線應(yīng)絕緣良好，接線正確，抽水時坑內(nèi)作業(yè)人員應(yīng)返回地面，移動泵機必須先拉閘切斷電源。<br> 7、汽車運土，裝載機鏟土?xí)r，應(yīng)有人指揮，遵守現(xiàn)場交通標(biāo)志和指令，嚴(yán)禁在基坑周邊行走運載車輛。<br> 8、基坑開挖過程，應(yīng)按設(shè)計要求，及時配合做好錨桿拉固工作。<br> 9、基坑開挖到設(shè)計標(biāo)高后，坑底應(yīng)及時滿封閉，及時進(jìn)行基礎(chǔ)施工，防止基坑暴露時間過長。<br> 10、開挖過程，如需石方爆破，應(yīng)制定包括藥量計算的專項安全作業(yè)方案，報公安部門審批后才準(zhǔn)施爆，并嚴(yán)格按有關(guān)爆破器材規(guī)定運輸、領(lǐng)用、存放和管理。<br> 11、深基坑內(nèi)應(yīng)有通風(fēng)、防塵、防毒和防火措施。<br> （2）高支模工程安全要點<br> 1、進(jìn)入現(xiàn)場必須遵守安全操作規(guī)程，按照高支模方案的要求作業(yè)。<br> 2、作業(yè)前應(yīng)先檢查使用工具是否安全牢固，作業(yè)條件及基礎(chǔ)是否符合安全要求。<br> 3、嚴(yán)格按照層高超過4.5m的高支模模板支架安全施工方案進(jìn)行搭設(shè)，不合格的材料、扣件不準(zhǔn)使用。<br> 4、支架立桿底部應(yīng)設(shè)置底座或墊付板并設(shè)置縱橫向掃地桿，立桿上的扣件應(yīng)交錯布置，支架立桿應(yīng)豎直設(shè)置，2m高度的垂直度允許偏差為15mm。<br> 5、當(dāng)梁模板支架立桿采用單根立桿時，立桿應(yīng)設(shè)在梁模板中心處且偏心距不應(yīng)大于25mm。<br> 6、模板支架四邊與中間每隔四排支架立桿應(yīng)設(shè)置一道縱向剪刀撐，由底至頂連續(xù)設(shè)置。<br> 7、模板尺寸準(zhǔn)確，安裝模板必須及時釘（扣）頂牢固，不得留松板或浮板，預(yù)留孔口應(yīng)及時蓋板封閉牢固。<br> 8、使用手持電鉆、電鋸應(yīng)符合安全用電要求，若出現(xiàn)故障，應(yīng)先拉閘斷電再送機維修，不可擅自檢修。<br> 9、遇有六級陣風(fēng)或大雨應(yīng)停止作業(yè)。<br> 10、架設(shè)完畢必須嚴(yán)格驗收，不合格不準(zhǔn)進(jìn)行下道工序作業(yè)，不準(zhǔn)邊加固邊上鋼筋邊綁扎鋼筋作業(yè)，嚴(yán)防坍塌事故發(fā)生。<br> （3）腳手架工程安全要點<br> 1、鋼管腳手架的立柱，應(yīng)置于堅實的地基上，立柱鋼管加墊座，用混凝土塊或用堅實的厚木塊墊好，宜加掃地桿牽系牢固。<br> 2、腳手架的立柱要求垂直，其中轉(zhuǎn)角立柱的垂直誤差不得超過0.5%，立柱不得超過1%，八層以上建筑的外腳手架立柱間距不得大于2m，縱向的水平鋼管的垂直間距不大于1.8m,并要用構(gòu)件聯(lián)結(jié),螺栓擰緊,承重的縱向水平桿務(wù)必支承于橫桿之上。 <br> 3、腳手架兩端轉(zhuǎn)角處，每隔6~7根立柱設(shè)剪刀撐，與地面的夾角不大于60度，橫向每隔4m設(shè)一錨固點，必須與建筑物錨固點拉結(jié)牢固。安全網(wǎng)隨著工作層完成均要設(shè)置(即滿拉)，水平網(wǎng)每隔四層設(shè)一道，首層必須按照通道長度搭設(shè)安全網(wǎng)。<br> 4、走橋上必須滿鋪腳手板，上料斜道坡度不得大于1：3，寬度不得小于1.5m,上人斜橋坡度不得大于1:2,防滑條間距以30cm為宜,但不得大于35cm。<br> 5、采用的鋼管外徑宜用51mm，壁厚3~4mm，管壁厚度小于3mm的鋼管，不宜做立柱和橫桿。<br> 6、外排架須高出工作面1.2m以上，臨時通道兩側(cè)要搭設(shè)防護欄桿。<br> 7、外排架搭設(shè)分段完成后，要經(jīng)驗收合格并報安監(jiān)站驗收合格后方可使用，并辦理驗收手續(xù)。<br> 8、電線水管等臨時設(shè)施，必須先清除干凈后再拆除。附在架上安全網(wǎng)要隨架的拆除而逐步拆下，翻橋板要向下外傾，以防止雜物下落打破玻璃，翻板時要有專人負(fù)責(zé)安全警戒。<br> 9、拆架時，應(yīng)按順序進(jìn)行，應(yīng)由上而下，不準(zhǔn)上下同時作業(yè)，并制定拆卸防范措施。<br>（4）起重機械安全要點<br> 1、起重臂伸出、或主副臂全部伸出后，變幅時不得小于各長度所規(guī)定的仰角。<br> 2、起重機行駛和工作的場地應(yīng)保持平坦堅實，并應(yīng)與溝渠、基坑保持安全距離。<br> 3、載荷不得超過該工況下額定起重量的20%，以防造成起升機構(gòu)超載受損、或?qū)е缕鹬貦C傾翻事故。<br> 4、內(nèi)燃機水溫在80～90℃時，潤滑性能較好，水溫末達(dá)到80℃時，不得高速行駛。<br> 5、作業(yè)中發(fā)現(xiàn)起重機傾斜、支腿不穩(wěn)等異?，F(xiàn)象時，應(yīng)立即使重物下降落在安全地帶，不能使用緊急制動，以免造成起重機傾翻事故。 <br> 6、為保證起重機的正常使用，在起重機作業(yè)前必須進(jìn)行檢查： (1)各連接件無松動。 (2)輪胎氣壓符合規(guī)定。 (3)鋼絲繩及連接部位符合規(guī)定。 (4)各安全保護裝置和指示儀表齊全完好。 (5)燃油、潤滑油、液壓油及冷卻水添加充足。<br> 7、起重機使用的鋼絲繩與卷筒應(yīng)連接牢固，放出鋼絲繩時，卷筒上應(yīng)至少保留三圈，收放鋼絲繩時應(yīng)防止鋼絲繩打環(huán)、扭結(jié)、彎折和亂繩。<br> 8、鋼絲繩采用編結(jié)固接時，編結(jié)部分的長度不得小于鋼絲繩直徑的20倍，并不應(yīng)小于300mm，其編結(jié)部分應(yīng)捆扎細(xì)鋼絲。當(dāng)采用繩卡固接時，與鋼絲繩直徑匹配的繩卡的規(guī)格、數(shù)量應(yīng)符合規(guī)范要求。<br> 9、每班作業(yè)前，應(yīng)檢查鋼絲繩及鋼絲繩的連接部位，當(dāng)斷絲根數(shù)達(dá)到或超過規(guī)定時，應(yīng)予報廢。<br> 10、六級及以上大風(fēng)或大雨、大雪、大霧等惡劣天氣時，應(yīng)停止起重吊裝作業(yè)。雨雪霧過后作業(yè)前，應(yīng)先試吊，確認(rèn)制動器靈敏可靠后方可進(jìn)行作業(yè)。<br> <div class="zbbbnpu2h4x" id="contentb"></div> </div> <div id="zbbbnpu2h4x" class="clearfix"></div> </div> <div>上一個：<a href="n865734.htm">氣動攪拌機在生活中的應(yīng)用</a><br /> 下一個：<a href="n865732.htm">如何進(jìn)入汽車控制系統(tǒng)，汽車手機智能控制系統(tǒng)大家怎么操作</a> <br /><br /> <a href="n865434.htm">裝配線安全注意事項是？</a><br /> <a 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