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1、附件90 中铁航空港安全技术交底书 表1309-1 技术交底书表格编号1309-1项目名称兰州轨道交通一号线 TJ标第 1 页共16 页交底编号工程名称兰州市城市轨道交通一号线TJ-16工区设计文件图号施工部位区间马头门破除交底日期2014/10/23技术交底内容: 一、工程简介马头门破除位置平面图焦东暗挖区间标准断面为拱形断面,主要分为A1、A2、A3、人防段、渡线段B1和短线段B2,其中A1(标准)、A2(高等减震)、A3为标准断面(特殊减震),左线起点里程ZDK33+170.666,终点里程ZDK33+551.866,全长381.43m。右线起点里程YDK33+170.026,终点里程Z
2、DK33+551.866,全长381.84m。区间采用矿山法施编制/日期: 复核/日期:附件90 中铁航空港安全技术交底书 表1309-1 技术交底书表格编号1309-1项目名称兰州轨道交通一号线 TJ标第 2 页共16 页交底编号工程名称兰州市城市轨道交通一号线TJ-16工区设计文件图号施工部位区间马头门破除交底日期2014/10/23技术交底内容:工,隧道拱顶覆土厚度约4.715.4m,区间断面主要为单线单洞马蹄形隧道。本方案适用于焦东矿山法区间马头门破除施工方案。二、设计概况区间隧道采用矿山法施工,隧道结构为马蹄形断面复合式衬砌结构,超前支护采用:42普通钢管,壁厚3.5mm,L=2.5
3、m,拱部150布设,环向间距0.3m,纵向间距1m,外插角10左右。喷射混凝土采用:C25喷射早强混凝土,厚度350mm。衬砌采用:C55防水钢筋混凝土,抗渗等级不低于P10,厚300mm。中控锚杆采用: RN25中空注浆锚杆边墙设置,长2.5米,1m1m梅花型布置,端头设150x150x6mm钢垫板;注水泥水玻璃双浆液。标准断面图如图。编制/日期: 复核/日期:附件90 中铁航空港安全技术交底书 表1309-1 技术交底书表格编号1309-1项目名称兰州轨道交通一号线 TJ标第 3页共16 页交底编号工程名称兰州市城市轨道交通一号线TJ-16工区设计文件图号施工部位区间马头门破除交底日期20
4、14/10/23技术交底内容:三、马头门施工步骤1、总述焦家湾站东岗站站区间具体施工部署为:区间竖井及横通道的初支施工完毕后,在横通道侧墙上放样区间隧道四个洞门轮廓及进洞大管棚位置,施工大管棚并注浆加固。区间正洞马头门应4个工作面错开,禁止同时施做,先开挖同一侧方向的两个工作面(左、右线隧道),且两个工作面开挖纵向距离大于30m。 焦家湾站东岗站站区间隧道四个洞口施工顺序示意图2、 主要施工方法(1) 测量放样编制/日期: 复核/日期:附件90 中铁航空港安全技术交底书 表1309-1 技术交底书表格编号1309-1项目名称兰州轨道交通一号线 TJ标第 4 页共16 页交底编号工程名称兰州市城
5、市轨道交通一号线TJ-16工区设计文件图号施工部位区间马头门破除交底日期2014/10/23技术交底内容:由测量组准确放样开挖轮廓线,马头门施工前应准确复核马头门位置及轮廓线。首榀格栅架立测量组准确定位,保证设计高程及设计净空的准确性,喷混完33、大管棚施工(1)设计参数横通道进正洞处马头门结构拱部120范围内,采用108大管棚和42小导管超前注浆加固。大管棚管径108mm,壁厚6mm,管长12m,环向间距40cm,东西两侧总计108根。(2)导向原理管棚主要位于黄土状土中,因此管棚施工采取水循环跟管导向钻进法成管。水平导向跟管钻进方法是非开挖管线施工的一种方法。该方法要求在钻进过程中能准确测
6、定钻头在地下的位置和方向。根据钻头在钻进过程中的位置和方向同设计轨迹的差异,利用能进行调节方向的钻头(一般为楔型钻头)改变钻头的钻进方向,从而按设计要求完成各种管线的铺设,钻头示意图如下:编制/日期: 复核/日期:附件90 中铁航空港安全技术交底书 表1309-1 技术交底书表格编号1309-1项目名称兰州轨道交通一号线 TJ标第 5 页共16 页交底编号工程名称兰州市城市轨道交通一号线TJ-16工区设计文件图号施工部位区间马头门破除交底日期2014/10/23技术交底内容:(3)施工方案1)现场场地准备场地准备:钻机机架搭设平台地面应硬化,确保钻机机架稳定,保障施工安全。钻机安装平台标高应比
7、最低一根管棚中心标小1.20m。为保证现场安全文明施工,钻机安装到位后应布置好泥浆排放系统。2)测量放线 钻机机架安装前,根据设计图纸测量放出隧道轴线、里程线和管棚中心位置,并做好相应标志,标出孔号。3)开孔开孔采用133mm钻头,开孔长度为350mm,开孔角度为1%。4)钻机安装钢垫板规格:长宽=250mm250mm;胀管螺栓直径: 16mm;钢垫板与基础固定要牢,强度要高;H型钢轨找平误差 , party implementing the guiding ideology of opinions to determine the objectives and requirements, s
8、tep method, in accordance with the look in the mirror, dress up, wash bath, cure treatment, the general requirements of for the people pragmatic honest people as the theme, in carrying forward the spirit of Zhuanglang Zhuang, improve their work style, service to the masses of the people, the foundat
9、ion of consolidating grassroots, promote transformation across efforts, to further implement the central eight regulations and The opposition party and government austerity waste regulations , double section provincial regulations, municipal provisions of the twelve plan and the implementation measu
10、res for on improving the work style of close ties with the masses law, highlight style building, carry out the whole wind spirit, resolutely oppose formalism, bureaucracy, hedonism and wasteful extravagance to solve the problems, Party members and cadres of the style and the masses of people strong,
11、 the Ministry of Party members and cadres to further improve their thinking and understanding, to further change the style of the wind, the masses to close, honest and pragmatic people honest image to further establish the foundation to further reinforce the basic level. Style of the building of the
12、 new results to promote the construction of a powerful force of the county and the ecological culture of the county and county construction.In educational practice activities of the unit is mainly: the county and below county departments under the organs, enterprises and institutions directly under
13、the township, street, and community, village, non-public economic organizations, social organizations and other grass-roots organizations. Agencies and branches, each single unit, follow the rules on internal institutions. Educational practice with step by step.To adhere to the county leadership, le
14、adership and leading cadres to focus on outstanding catch to directly contact the service of the masses of law supervision departments and window units, service industry, educational practice, pay attention to grasp the heavy towns, streets and villages, community education activities and the masses
15、 of grassroots groups in close contact to strengthen, and the majority of Party members, cadres and the mass line line Marx doctrine view of the masses and the partys education.Always speak seriously as a basic attitude, adhere to positive education, to carry out criticism and self criticism group,
16、adhere to the pragmatic, more emphasis on leadership, pay more attention to the layers of the demonstration, more focus on the four winds, solve the problem, pay more attention to open the door, the participation of the masses, pay more attention to the classification guidance. Orderly, pay more att
17、ention to the cooperation and cohesion driven, more strict requirements on injection, really supervision practice, ensure education practice is not empty is not empty is not partial, not as a mere formality.Two, the key point of the taskThe main task of the countys education practice is to seize aga
18、inst four wind this focus on centralized solve outstanding problems asked County, township leadership and leading cadres of the four winds, the disadvantages of the style, scale behavior to a large scale investigation, overhaul, cleaning greatly. At the same time, respond to the concerns of the mass
19、es, safeguard the interests of the masses, pay attention to solve practical problems, solve the people around the unwholesome tendencies especially on eat, take the card, Yong lazy luxury, extravagance and waste fees, privileges and other issues, timely and effective, without any discount to solve,
20、to improve the style of real implementation of the requirements of real to the grassroots, real let group Benefit the public.(a) focus on solving the four winds outstanding issuesThe central and provincial requirements, the county leadership and leading cadres of key performance concept is not corre
21、ct, do not dare to play, to engage in image project, political project, a leadership guide, a set of ideas, orders and prohibitions, and a policy, there are countermeasures county. The units directly under the heavy focus on solving Yung lazy drag, buck passing skin, work is not implemented, the ser
22、vice is not active. The dynamic problem of law enforcement and supervision departments and window units, service industry mainly solve the door hard, ugly face, something difficult, and arbitrary charges, fines, levies, and breach of privilege, chinakayao, not the problem of law. The township, stree
23、t The collar of leading bodies and leading cadres to solve key does nottheir own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key breakthroughs, to enhance the competitive streng
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