ndoverallleadershipresponsibilityforsafety.AdministrativeDeputyiswithinthescopeoftheirrespectiveresponsibilitiesatvariouslevelsofsecurityresponsibility,inchargeofsecurityworkinthecontextofleadership,responsibletotheChief.Fifthopenpitproductionsafetyaccidentinvestigationsystem,performedonaproductionsafetyaccident\dentreportstepbystepreportingthreechannels,namely,UnitChief,administrationandsafetysupervisionsystemcounterparttosuperiorleadership,reportsinatimelymanner.Sixthpitmustimplementthe\nchargeofwho'sincharge\besafe\nning,layout,checkproductionwork,summarizedandevaluatedatthesametime,plans,features,review,summary,ratingsafetywork.Firmlyestablishing\ness,safetyisthecredibility,safetyisthecompetitiveness\ss,tomakesafetywork.Seventhminingtradeunionorganizationaccordingtolawtheworkerstoparticipateintheworksafetyofdemocraticmanagementanddemocraticsupervision,safeguardworkers'legitimaterightsandinterestsinrespectofsafety.PersonaldeathandaTradeUnionhastherighttoparticipateinthemajoraccidentinvestigations,relyonthemassestodoproductionsafetywork.Eighthpitmustbebasedonrelevantlawsandregulations,industrystandardsandcompanyandGod'sstandards,rulesandregulationsissuedbythecompany,developingrulesandregulationsforcoalproduction,institutionalizationan 6）、当桩孔挖至5M以下时，应在孔底面以上3.0M左右处的护壁凸缘上设置半圆形的防护罩，防护罩可用钢（木）板或密眼钢筋（丝）网作成；在吊桶上下时，作业人员必须站在防护罩下面，停止挖土，注意安全；若遇起吊大块石时孔内作业人员应全部撤离至地面后才能起吊；
7）孔内凿岩时应采用湿式作业法,并加强通风防尘和个人防护; 8)、如在孔内爆破，孔内作业人员必须全部撤离至地面后方可引爆破时，孔口应加盖；爆破后,必须用抽气、送水或淋水等方法将孔内废气排除，方可继续下孔作业。
16、孔口配合人员应集中精力，密切监视孔内的情况，并积极配合孔内作业人员进行工作，不得擅离岗位。在孔内上下递送工具物品时，严禁用抛掷的方法。严防孔口的物件落入桩孔内。
17、在灌注桩身砼时，相邻10M范围内的挖孔作业应停止，并不得在孔底留人。
18、暂停施工的桩孔，应加盖板封闭孔口，并加0.8～1.0M高的围栏围蔽。
19、现场应设专职安全检查员，在施工前和施工中应进行认真检查，发现问题及时处理，待消除隐患后再行作业。
6
人工挖孔桩施工方案（打）
