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1、Last week, our economic work Conference held today, held the Countys rural areas for work and five water treatment, three to split Conference, which this year was a matter of Thirteen-Five important meeting of our Countys economic and social development. The main task of the meeting was, on rural wo
2、rk and conscientiously implement the Central, provincial and municipal five water treatment, three to split series of important conferences, learn from the past, study deployment priority tasks this year. Just now, the XXX Deputy head and Deputy County magistrate, respectively, on the work of the XX
3、 was fully deployed, and put forward specific measures and requirements about is in place. County Environmental Protection Bureau, the XX town, town of XX 3 units for a position statement, resounding, demonstrated determination and confidence. Conference also recognition has advanced representative,
4、 this, I also representative County, and County Government, to by recognition of advanced said warm of congratulated! to rural, and water and three modified a split front General cadres workers extend sincere of greeting! following, I again told five points views: a, and deepening awareness, further
5、 enhanced work of sense and urgency since party of 18 session v plenary proposed has innovation, and coordination, and green, and open, and shared five big development concept Hou, rural and environment governance work can said was upgrade to has more high of strategy level, is Thirteen-Five build w
6、ell-off a top priority task. XX, County besides lingxi, Longgang, jinxiang, the Treasury, the hills, several industrial town outside the city centre, is basically belong to other rural areas, area, the vast rural population. Same time, the current and coming period, is the County into a crucial peri
7、od of the South Gate of XX beautiful, environmental regulation directly affects the effectiveness of the strategic objectives can not be achieved. Therefore, the focus on rural work and five water treatment, three to split, the XX economic and social development has an important role. Last year, thr
8、ough the joint efforts of the County, reform of the agricultural and rural development has made great progress in our County, environmental remediation and achieved initial results. Three agriculture agricultural modernization level continues to increase, new 4-level modern agriculture Park, release
9、d 20 agricultural leading enterprises above the county level, the County area of 200 acres of land more than eco-leisure, investments of more than 5 million Yuan reached more than more than 100 agricultural projects. Rural development has improved continuously, boutique line 1 completed the beautifu
10、l countryside, fine village 17, beautiful rural development conference was held in lingxi peach Lake in the city. Promote comprehensive rural reform, included in the provinces building three in one system of farmers cooperative economic organization first promoting the County. Improvement of farmers
11、第八章 矿山安全评价8.1 矿山安全评价的理论基础8.1.1 矿山灾害的分类1、矿山类别依矿产种类不同，矿山可分为煤矿、冶金矿山、黄金矿山、有色金属矿山、化工原料矿山、核工业矿山、建材矿山和轻工矿山。还有煤矿矿山与非煤矿山、金属矿山与非金属矿山之分。2、矿山灾害按伤害方式分类（1）冒顶片帮、地面塌陷、露天滑坡；（2）瓦斯爆炸、煤尘爆炸、硫化矿尘爆炸；（3）矿山火灾：外因火灾和自然火灾；（4）矿山水灾：地面水灌井和巷道透水；（5）中毒、窒息；（6）火药燃烧爆炸、放炮；（7）平巷、斜井的运输事故，竖井提升事故；（8）高处坠落：井架坠落、坠入溜井；（9）机械伤害；（10）触电：电击和电烧伤；（11）
12、物体打击；（12）矿区污染。3、矿山灾害按事故性质分类分为责任事故和非责任事故。8.1.2 事故的基本特征主要包括：事故的因果性，事故的偶然性、必然性和规律性，事故的潜在性和再现性。8.1.3 防灾五原则1、可能预防的原则2、因果继承原则事故原因分为直接原因和间接原因：直接原因又称一次原因，分为物的原因和人的原因；间接原因是二次、三次以至多层次继发来自事故本源的基础原因，分为技术的原因、教育的原因、身体的原因、精神的原因、管理的原因、社会或历史的原因等。3、损失偶然性原则4、对策选择性原则3E对策：技术的对策、教育的对策和法制的对策。5、危险因素防护原则（1）消除潜在危险原则；（2）降低潜在危
13、险因素原则；（3）距离防护原则；（4）时间防护原则；（5）屏蔽原则；（6）坚固原则；（7）薄弱环节原则；（8）闭锁原则；（9）不予接近原则；（10）取代操作人员的原则；（11）警戒信息原则。8.1.4 矿山事故模型1、矿山中以人失误为主因的事故模型2、矿山事故起因物施害物模型8.2 矿山安全评价的主要依据8.2.1 煤矿开采的一般规定每个生产矿井必须至少有2个能行人的通达地面的安全出口，各个出口的距离不得小于30米。井下第一个水平到上一个水平和各个采区都必须至少有2个便于行人的安全出口，并与通达地面的安全出口相连接。未建成2个出口的水平或采区严禁生产。井巷交岔点必须设置路标，标明所在地，指明能
14、往安全出口的方向。能达地面的安全出口倾角等于或小45度时，必须设置人行道。倾角大于45度时必须设置梯道间或梯子间，斜井梯道间必须分段错开设置，每段斜长不得大于10米；立井梯子间的梯子角度不得大于80度，相邻两个平台的垂直距离不得大于8米。安全出口应经常清理、维护，保持畅通。主要绞车道不得兼作人行道。巷道净断面必须满足行人、运输、通风和安全设施及设备安装、检修、施工的需要。巷道净断面的设计，必须按支护最大允许变形且的断面计算。采区结束回撤设备时，必须编制专门措施，加强通风、瓦斯、防火管理。8.2.2 煤矿通风要求井下空气成分必须符合下列要求：1、采掘工作面的进风流中，氧气浓度不低于20%，二氧化
15、碳浓度不超过0.5%。2、有害气体浓度不超过表8-2规定。表8-2 矿井有害气体最高允许浓度名 称最高允许浓度/%一氧化碳CO0.0024氧化氮（换算成二氧化氮NO2）0.00025二氧化硫SO20.0005硫化氢H2S0.00066氨NH30.004设有梯子间的井筒或修理中的井筒，风速不得超过8m/s。无瓦斯涌出的架线电机车巷道中的最低风速不得低于0.5m/s。进风井口以下的空气温度必须在2以上。采掘工作面的空气温度超过30、机电设备硐室的空气温度超过34时，必须停止作业。矿井必须有完整的独立通风系统。采区进、回风巷必须贯穿整个采区，严禁一段为进风巷、一段为回风巷。矿井通风系统必须标明风流方
16、向、风量和通风设施的安装地点。矿井应绘制矿井通风系统立体示意图和矿井通风网络图。矿井必须采用机械通风。主要通风机必须安装在地面，装有通风机的井口必须封闭严密；必须保证主要通风机连续运转；必须安装2套同等能力的主要通风机装置；严禁采用局部通风机或风机群作为主要通风机使用；装有主要通风机的出风井口应安装防爆门，防爆门每6个月检查维修1次；至少每月检查一次主要通风机；新安装的通风机投入使用前，必须进行一次通风机性能测定和试运转工作，以后每5年至少进行1次性能测定。8.2.3 煤（岩）与瓦斯突出的安全规定突出矿井在编制年度、季度、月生产建设计划的同时，必须编制防治突出措施计划。开采突出煤层时，必须采取预测、防治突出措施、防治突出措施的效果检验、安全防护措施
