l袋装砂井桩机到安全施工方案.doc
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1、In County government legal do 2015 and the Twelve-Five summary and next year work plans Government legal do 2015 and the Twelve-Five summary and next year work plans Twelve-Five planning and the law administrative 55 planning implementation yilai, I city levels the sector Xia big pneumatic advance l
2、aw administrative and rule of law Government construction, led attention, measures powerful, method properly, effect obviously, law administrative and rule of law Government construction work made has great progress, powerful advance has I City economic social of and good and fast development. Speci
3、fic reports are as follows: a Twelve-Five during the work completed (a) promoting administration according to law was strengthened. Twelve-Five during, I city seriously implementation in heze City law administrative 55 planning, in annual early of full municipal government legal workshop Shang, insi
4、sted arrangements deployment, insisted layer Layer signed law administrative target responsibility, insisted months summary, and quarter scheduling, and years assessment, insisted recognition award work Qian three name County district; around law administrative and rule of law Government constructio
5、n 1443 work thought, continued punches not pause, and firm target not toss; always will Government legal work points, and law administrative target responsibility, and Implementation of government legal system as the main measures to move forward. After years continued tireless of efforts, I city of
6、 law administrative advance work made has significantly results, highlight performance for: levels leaders more attention law administrative work, more consciously using rule of law thinking and rule of law way processing problem, and solution contradictions, law administrative opinion atmosphere mo
7、re strong, law enforcement personnel law administrative capacity obviously enhanced, people satisfaction degrees increasingly high, law administrative promoted and guarantees economic social development function more appeared. Second, the implementation of the administrative reconsideration law of t
8、he powerful. Twelve-Five yilai, I city put administrative reconsideration system construction always as a event to caught, after years of efforts, through strengthening and perfect reconsideration system construction, reform administrative reconsideration system, innovation reconsideration work mech
9、anism, as currently, I city has established sound has administrative reconsideration filed, and trial, and hearing, and mediation reconciliation, and collective research considered, and misjudged held, more than 20 more than items work system; while, also break restricted reconsideration work bottle
10、neck, carried out relative concentrated administrative reconsideration right, City, County and District Administrative Review Committee was set up; innovative modes of administrative reconsideration, to explore the establishment of three centers review mechanisms established review case linkage syst
11、em to realize information resources sharing. 55 since the implementation of planning, 1300 cases handled reconsideration, the knot rate is above 90%. Third, the Government legal supervision to achieve a breakthrough. To administrative forced method, and legislation method, and administrative procedu
12、re, and Shandong province administrative law enforcement supervision Ordinance, and Shandong province administrative program provides, legal regulations issued implementation for opportunity, increased on levels中山市纵四线工程第标段袋装砂井施工安全专项施工方案中铁九局集团有限公司中山市纵四线工程第标段项目经理部2013年8月18日袋装砂井安全专项施工方案一、工程概况1、地质情况地质勘查
13、报告显示,本标段施工范围内的淤泥深度较大,从原地面往下主要为淤泥、淤泥质粉质粘土,厚度在1.613米。 2、基本情况在两阶段施工图设计中,路中间高压线下及边外4米的范围内的袋装砂井为非接管法施工,袋装砂井绝大部分为20米或接近20米长,非接管法施工桩机机架总高度为24米,方可满足设计的施工长度。路中存在高压线且部分路段两侧均存在高压线,施工桩机过高危及到高压线的安全,根据中山供电局安全交底要求,为防止在施工过程中发生机械倒伏以致危及高压线路的安全,需对超高的非接管法桩机采取一定的措施进行加固防护,以确保在施工过程中高压线路的安全,特制订本方案。二、施工条件1、高压线的分布情况路中高压线为220
14、KV,路线右侧高压线为110KV,路线左侧高压线为10KV。与路线相对位置如下:K7+200-K7+920段路中、两侧均有高压线;K7+920-K8+690段路中、右侧有高压线(右侧其中有一段约150米只有埋地电缆,无架空高压线); K8+690-K9+500段路中有高压线。2、高压线的相对位置根据项目部测量组的现场测量,路中高压线与两侧高压线之间的最大水平距离只有26.53米,路侧无高压线但受围墙限制的地方,高压线与围墙之间距离为24.7958.27米。全线路中高压线最低点位置的净高为12.78米14.44米,路两侧高压线的最低点位置净高为9.2712米。三、高压线路下安全施工要求1、最小安
15、全距离:220KV:6米;110KV:5米;10KV:3米。2、供电局安全技术交底对现场施工机械要求(1)工作前检查相关工器具、施工机械,保证工器具、施工机械合格、安全;(2)桩机竖立后及在施工过程中,必须对桩机加设临时拉线,做好防止桩机向线路方向倾倒等措施;(3)经过现场测量计算,在220KV高压线行边施工时,现有桩机高24米若不降低高度,应把桩机迁至线边24米外;若不改变现时桩机位置(离高压线水平距离约6米),应把桩机高度降至不高于11.5米;(4)经过现场测量计算,在110KV高压线行边施工时,现有桩机高24米若不降低高度,应把桩机迁至线边24米外;若不改变现时桩机位置(离高压线水平距离
16、约6米),应把桩基高度降至不高于9.5米;四、桩机安全专项施工方案 根据中山供电局安全交底要求,在路中和路线外侧均有高压线部位的非接管袋装砂井施工桩机,需要四向固定措施,保证机架的稳固不向高压线方向倒伏。根据原定施工进度计划要求,在施工现场共有5台24米高的非接管法袋装砂井施工桩机,其中K7+200K7+994段2台,K8+067k8+692段2台,K9+167K9+500段1台,则能满足进度要求。3、桩机安全专项施工方案一根据现场情况,袋装砂井施工分三大段落,部分路段除了路中有高压线之外,在路线左、右则也有高压线,考虑采用四向拉缆风绳拉紧袋装砂井桩机塔架,拉点在塔架的中间或中间稍微往上的位置
17、,以免缆风绳向外拉成一定角度时和高压线过近。缆风绳四向平面分别成90度角,主要为避免塔架向高压线方向倒伏。缆风绳如果固定锚固在地上,考虑到工作面底下为淤泥层没有足够的锚固力,起不到相应的张拉稳固的作用;其次非接管法袋装砂井桩机施工速度较快,约每三分钟可以完成一根袋装砂井施工,然后需要移动桩机位置进行下一根袋装砂井的施工,移动频繁,采取固定的稳固措施只能保证桩机在移动过程中的稳固保护作用,无法满足机械不停变换位置施工的要求。考虑可移动并有足够重量的重物作锚固点的设置,配备挖机或吊车全程配合桩机施工,缆风绳的紧固配备四名工人配合收紧,保证桩机的稳固性。4、桩机安全专项施工方案二机械摆放沿路线横向移
18、动施工,在机架底座焊接2根16#工字钢,延伸到履带端头范围外23m,然后在履带端头外玩下横向再焊接2根16#工字钢,做成一个端头横梁,横梁离地面高10cm,保证桩机可以自由移动。考虑到桩机塔架重量,在横梁上靠高压线方向每侧用两根50钢管做斜撑,连接到塔架的中间部位(大约为14米高的位置),形成一个有效的支撑,在桩机发生倒伏时能起到有效的支撑作用。见下图:5、桩机安全专项施工方案三 采用接管法施工,将24米高的机架进行改装,达到符合高压线最小安全距离要求后进场施工。根据测量数据结合中山供电局安全技术交底和高压线的最小安全距离要求,现场大部分原设计为非接管法施工的袋装砂井均需要改为接管法施工才能满
19、足要求,确保高压线在施工期间的安全运行。1)施工区域划分按照高压线不同部位高度进行不同接管数量进行划分区域施工,桩机则对应划分的区域进行改装为不同的高度,在路中高压线塔的位置挂线较高,在路线纵向方向划分区域可以分两大部分,在高压线下两个塔之间的中间段区域(接四节管)、高压线塔两旁段区域(接三节管)。在横向方向上划分为中间线下区域(接四节管)、两高压线之间区域(接两节管)、路侧高压线边区域(接四节管)。2)施工机械改装根据施工前测量的高压线的高度改装施工机械,机架顶到高压线有足够的最小安全距离,然后将机械移到施工场地内。袋装砂井施工采用导管式振动打桩机,振动沉管法施工,每台打桩机配一台灌砂机。1
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