13-突水涌泥段专项施工方案.doc
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1、Gay is now a provincial key construction project of aluminum Ltd-province with an annual output of 50,000 tons of technical innovation project of environmental protection and energy saving of electrolytic aluminum project manager. In this technological transformation projects, he has overall respons
2、ibility for the day-to-day affairs of the project. In order to ensure that southern companys control the scale of investment, strengthen field management, pay special attention to project progress, and ensure a successful operation, the overall goal. He and Engineering Department under the leadershi
3、p of all the staff in the companys technical command, on the difficulties and to overcome technical difficulties in the process, work hard, have made outstanding achievements, mainly reflected in the following aspects: first, careful organization and management achieved remarkable results. Technical
4、 innovation project of the year, started and completed a series of bids and completed to date, from production engineering to put into production after nearly a year, has achieved very significant results. A project first 56 slots from dismantling the old slot just 168 days, civil engineering, insta
5、llation, commissioning, guarantee engineering quality under the premise, on the production side transformation under difficult conditions, created the national industrys fastest speeds. II 32 large prebaked electrolytic cell on November 7 has been installed, marks has an annual production capacity o
6、f 50,000 tons of electrolytic aluminum production capacity of aluminum. Entire project almost 8 months earlier than planned, achieved the goal of production transformation benefits that year, created favorable conditions for aluminum through South. Second, effectively control the investment. Project
7、 is subject to a scientific approach to bidding, bidding to make savings of 20 million Yuan, in the implementation process of the project, every domestic prices of steel, cement and other building materials, the old buildings on the base encountered great difficulties in dealing with significant inc
8、rease in the volume of civil engineering, but through rationalization and optimization, project control in fixed investment of 350 million Yuan. Third, environmental energy-saving effect of the project. Project investment of nearly 30 million Yuan, using large prebake technology and aluminum oxide d
9、ense phase and hyper dense phase conveying technology, fluoride and other harmful gases purification efficiency of up to 98%. Compared with Soderberg cell before the modification, power consumption can be reduced by 1500 tons of electrolytic aluminum, and project environmental protection and energy
10、saving effect is obvious. Four are in a relatively short period of time to the normal production. After four months of efforts, a project has put into operation all the 54 240KA large cell into regular production, stable current channel conditions and all the economic indicators are good, current ef
11、ficiency in October had reached 93%, is close to and reach the domestic advanced level. In the case of production half of the cell, this effect can be achieved and better level in the industry. 50,000 tons of electrolytic modification process, from preliminary study to equipment selection, cost cont
12、rol, project progress, quality control and coordination among the various sub-projects and various professional, technical command under the correct leadership, both from an overall perspective, emphasis on integrity, and earnestly implement the relevant laws and regulations, strictly act according
13、to the contract. He tried to learn relevant knowledge, good style of business, operational and organizational coordination ability, project efficiency, quality and safety assurance system in place, with all units involved with the coordination and good .突水涌泥段专项施工方案一、编制依据隧道工程地质勘察报告铁道部铁路隧道钻爆法施工工序及作业指南
14、(TZ2312007)铁道部铁路隧道设计规范(100032005)朔州至准格尔线六狼山隧道设计图、施工图六狼山ZSKZ-1标段施工组织设计二、工程概况准朔铁路六狼山特长隧道全长15175m,单线隧道,进口里程为改DK20+575,出口里程为改DK35+750。进口至改DK35+450以14的坡度上坡,改DK35+450至出口以9的坡度上坡。翼墙式洞门,隧道最大埋深为443m。为开辟施工工作面,加快施工进度,隧道设5座斜井,斜井共长4650.8m,其中1#斜井长557.1m、3#斜井1116.67m、4#斜井1396.11m、5#斜井1068.86m、6#斜井512.56m。1#斜井为双车道斜井
15、,其余斜井为单车道斜井。1#、4#斜井在施工完毕后改做紧急出口,用于隧道发生灾难是的逃生疏散通道。3#、5#、6#斜井在正洞施工完毕后,整理好斜井内排水系统后封堵。隧道突水涌泥地段如下:隧道突水涌泥地段表序号地段里程地质属性描述涌水方式1改DK22+575改DK21+350地表沟谷,顶板第四系地层夹碎石类土碎石类土为水的良导体,雨季施工容易发生突水、涌泥易突水、涌泥2改DK21+950改DK22+150老黄土夹碎石土老黄土为黏性黄土相对隔水,碎石类土为很好地含水层和导水层,且为倾斜分布的透镜体,雨季地下水渗入饱水时,碎石土层及土石分界处,地下水具有承压性。碎石类土,雨季饱水时从下部开挖,可能产
16、生突水,涌泥3改DK22+190改DK22+715碎石土及豹皮状灰岩强风化带土石分界上层是碎石土和豹皮状灰岩不整合接触,基岩为强风化带,裂隙溶隙发育,渗透性较好施工开挖至此层,碎石层及强风化带饱水后具承压性,可能产生突水、涌泥、雨季水量大增。4改DK24+887改DK24+937逆断层断层产状65度70度,断层影响带范围,断层及影响带宽度50m。断距约为120m。地表为沟谷汇水,破碎带透水性好,导水性强。可能产生股状涌水,雨季涌水量增大5改DK25+570改DK25+750石灰岩与相对隔水层的泥岩夹砂岩交界处地下水顺相对隔水层上面径流,一方面促进岩溶发育,一方面聚集大量地下水,大地电磁该处为低
17、阻区,也说明为富水带。突水、涌泥6改DK26+550改DK26+650泥岩夹砂岩、砾岩大里程侧有断层,为很好的储水体,泥岩相对隔水,砂岩、砾岩破碎,相对含水可能产生股状涌水7改DK27+095改DK27+145正断层断层产状70度5 米),且掌子面围岩较为破碎,以软弱夹层为主时,采用套管注浆,将水隔离在距掌子面较远处,形成较厚的止浆岩盘。当出水点距掌子面较远(5 米),且掌子面围岩较为完整时,利用浅孔注浆加固形成止浆岩盘。2、主要机械设备及注浆材料帷幕注浆设备钻孔设备:ZYG150 全液压钻机;YQ100 风动钻机注浆设备:ZG6310 往复式柱塞泵(单液注浆机);KBY50/70 全液压双液
18、注浆泵;2TGZ60/210 可调式高压注浆泵(双液注浆机)制浆设备:JZ350 叶片式搅拌机辅助设备:搅拌储浆桶、多功能轨行式钻孔台车、T型混合器、Y 型混合器注浆材料42.5水泥;水玻璃51Be。3、施工方法注浆工艺流程见附后的注浆施工工艺流程图。注浆管路连接见附后注浆管路连接图注浆劳动力布置见注浆堵水专业工班施工人员安排表注浆堵水专业工班施工人员安排表 序 号工 种人数(名)备 注1工班长12电工13技术人员14试验人员15钻孔人员156搅拌机司机8包括给搅拌机上料人员7注浆机司机28注浆操作人员49材料运输410安全员111维修保养人员1合计39注浆施工工艺流程图补充 注浆设计测量放孔
19、(用油漆标注在岩面上)(用油漆标注在掌子面上)接通动力电源(用油漆标注在掌子面上)钻孔平台固定就位(用油漆标注在掌子面上)安装供风系统(用油漆标注在掌子面上)安装灭尘供水系统(用油漆标注在掌子面上)钻孔平台及俯仰角确定固定(用油漆标注在掌子面上)开孔且安装孔口管(用油漆标注在掌子面上)安装灭尘器(用油漆标注在掌子面上)钻孔注浆(用油漆标注在掌子面上)是(用油漆标注在掌子面上)转入下一钻孔(用油漆标注在掌子面上)孔深确定(用油漆标注在掌子面上)压水试验(用油漆标注在掌子面上)否(用油漆标注在掌子面上)注浆(用油漆标注在掌子面上)设计补注浆钻孔深度及位置(用油漆标注在掌子面上)是否已完成本循环钻孔
20、及注浆(用油漆标注在掌子面上)钻注浆效果检查孔(用油漆标注在掌子面上)是(用油漆标注在掌子面上)结束(用油漆标注在掌子面上)D 止浆岩盘的施工a、大股涌水施工方案:先对掌子面出水点进行引流工作,清底,浇筑砼止浆墙,砼施工过程中预埋孔口管与小导管注浆建造止浆岩盘,最后进行引流管的关水工作。止浆墙的设置:根据掌子面围岩及出水情况确定砼止浆墙长57 米,分两段施工,第一段为3 米长,第二段为24 米,第一段止浆墙起引水归槽作用,第二段止浆墙起到封闭形成止浆墙作用(见下图1)。具体施工步骤:在出水点采用260 钢管引水,同时自制“U”形槽放置于引流管下方,使散水归槽,保证掌子面基底干燥。砼止浆墙施工时
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