路基防护工程施工作业指导书.doc
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1、Fourth chapter of carbon safety responsibility system at various levels of the company, General Manager of security responsibilities 1, overall responsibility for the companys safety; 2, strict implementation of national safety guidelines, policies, laws, regulations and directives and to establish
2、and improve the responsibility system for production safety; 3, developed safety rules and regulations; 4, to ensure the effective implementation of safety production inputs; 5, supervision, inspection of production safety work, elimination of production safety accidents in a timely manner. 6, organ
3、izations develop and implement production safety accident emergency plan; 7, according to accident four no principle of organization to the investigation and handling of major incidents, with a report back to the Board of Directors of the company, the Executive Board decisions. Biotech chief securit
4、y responsibilities 1, timely convey the relevant directives, regulations, standards of production safety; 2, when the conflict should be subject to safety and security, organized, directed under the prerequisite of ensuring the safety production to prevent assault or overload the production to ensur
5、e safety; 3, supervise operation of worker training and assessment, strict implementation of the processing operation, strict implementation of the safety management system procedures and to ensure safety; 4, when the total technology plan, safety measures as an important content should be included
6、in the project; 5, responsible for production accidents investigation, treatment, statistics and reporting work. 6, the preparation of new devices starts programme review of technical operation, release process specification and inspection of the implementation; 7, in the formulation of technical me
7、asures and changes in the operating conditions must be consistent with safety requirements, to evaluate security technology and projects such as improving working conditions; 8, discovery, to stop the violation of the safety management system and reporting to the supervisor, Deputy General Manager,
8、notify the relevant departments; 9, responsible for water, electricity, steam and wind stopped sending and its not normal or emergency safety measures; 10, production in the event of danger or accident, to take decisive measures to prevent the situation, and to immediately notify the relevant depart
9、ments; 11, responsible for the investigation and handling of run, run, strings or other material and other production accidents, and statistical reporting, participation in major accident investigation work; 12 participate in safety inspections, and keep track of safety dynamics, praise or criticism
10、 in dispatching to the relevant units in a timely manner. Scheduling safety responsibility system of carbon facility system security on duty period is to run total Commander, on reasonable economic operation and the correctness of the operations command, responsible for security. Should be familiar
11、with the accident investigation procedures, safe work procedures, production scheduling procedures and related technical regulations and company procedures,长吉城际铁路CJCJ-1标 路基防护工程 施工作业指导书(DK9+508.98DK31+105.80)编制: 复核: 日期: 长吉城际铁路CJCJ-1标工程指挥部二工区路基防护工程施工作业指导书1 目的明确路基防护工程施工工艺、操作要点和相应的工艺标准,指导、规范路基防护、挡土墙工程施工
12、。2 编制依据客运专线铁路路基工程施工质量验收暂行标准客运专线铁路路基工程施工技术指南铁路混凝土与砌体工程施工规范 铁路路基边坡绿色防护技术暂行规定新建铁路长吉城际铁路施工图设计文件3 适用范围适用于新建铁路长吉城际铁路路基防护与支挡工程施工。4 施工工艺及技术要求4.1路基防护及支挡的一般规定使用的砂浆或混凝土必须有配合比和强度试验,并留够试件。石质强度应符合设计要求。施工所用砂浆、混凝土,应用机械拌和,不应直接在砌体面上或路面上以人工拌和,并应随拌随用。4.1.1边坡防护在所有路堤的基床表层以下路堤边坡的外边缘处,水平铺设宽度不小于3.0m的双向土工格栅。当路基土石方施工时或完毕后,应及时
13、进行路基防护施工。各类防护与加固应在稳定的基础或坡体上施工。设有支挡结构物及排除地下水设施地段,应先作好支挡结构物、排水设施,再施作防护工程。防护的坡体表面应进行检查处理,防护设施应与坡面密贴结合。施工前应先清刷坡面浮土,填补坑凹,使坡面大体平整。路基防护所设置的泄水孔的位置、布置形式、孔径尺寸及泄水孔背反滤层的材料、设置应符合设计要求,且排水畅通。砌体及反滤层(或垫层)的材料、设置应符合设计要求。4.1.2路基支挡岩体破碎或土质松软、有水地段,修建支挡结构应按结构要求适当分段,及时施工,不应长段拉开挖基。支挡结构基坑开挖前,应做好排水设施。基坑开挖后应及时进行基础及墙身施工,并做好墙后排水设
14、施,及时回填或填筑路堤。支挡结构的各部尺寸应符合设计要求。支挡结构背后填料及压实度应符合设计要求。支挡结构端部伸入路堤或嵌入地层部分应与墙体一起施工。路堑支挡结构顶面应抹平与边坡相接,其间孔隙应填实并封闭。支挡结构与桥台连接时,应协调配合施工;必要时应加临时支撑,保证相接填方或地基土层的稳定。支挡结构基础基坑开挖后,要核对地质资料,经验收合格后,方可进行基础施工,当与设计不符时应及时反馈。泄水孔、反滤层、排水层、隔水层、沉降缝和伸缩缝设置应符合设计要求。4.2 边坡防护施工工艺及技术要求4.2.1施工方法及工艺干、浆砌片石边坡准备:边坡砌筑应在坡面密实、平整、稳定后,方可铺砌。石料等级应符合设
15、计要求。砌筑前,其表面泥土、水锈应清洗干净。挖基:护坡施工采用人工挖基,人工刷坡,砌筑前,将基底平整夯实,检查合格后方可进行砌筑。 砌筑:片石采用挤浆法施工,铺砌时自下而上进行,砌块不得大面平铺,石块应彼此交错搭接,错缝一般为78cm ,不得松动,严禁浮塞。砂浆在砌体内必须饱满、密实,不得有悬浆。砌体宜用15cm以上的块(片)石。干砌边坡表面应平整,如遇坚石可挖成台阶。砌体护坡分段施工时,每隔1015m宜设一道伸缩缝,并做好伸缩、沉降缝及泄水孔,泄水孔后面,应设置反滤层。勾缝养生:勾缝前,应先将松动和变形处修整完好,干砌护坡勾缝应在路堤沉降已趋稳定后进行。浆砌片石应进行洒水养生。砂浆凝固后,墙
16、面全部刷干净,使外貌整洁美观。边坡植物防护准备阶段:喷植前应修好天沟等排水设施,修整坡面,嵌补凹槽、坑洼、准备好喷混材料等。喷射混合物由黏土、谷壳、锯末、水泥及复合肥等拌合,喷混材料应随拌随喷。粘土要先放在搅拌机中预拌,粉碎成粉状达到要求后,再加草籽和化肥,拌合均匀。备好风、水、电。备好塑料网、梯架。喷播操作:检查风、水、电路与机具。在已修整好的边坡上先撒上一层客土。人员与喷射机就位,调整好进料阀门,向机组的料斗中加料。打开进风管阀门,开启喷头水阀,湿润坡面。调整供水量,使混合料湿润成浆状,喷到坡面上的泥浆光泽而不下流。喷射枪尽量垂直坡面,从上到下反复喷射数次达设计厚度。喷射厚度为0.080.
17、1m。停料、断水电、关闭风路、停机。回收回弹料。养护:护坡喷植后,进行不少于20天的喷(洒)水养生,务使喷植护坡始终具有足够水份,促使草籽发芽、生长。 栽植乔木、灌木种植前的准备工作a.苗木准备根据工程设计图纸,列出苗木的品种、数量、规格、落实苗木供应来源,以及运到栽植地的运输情况及方法。对符合规格、生长健壮无病虫害的苗木,逐株做记号。高质量的苗木应具备的条件:根系发达完整,主根短直,接近根茎范围内有较多的侧根和须根,起苗后根系无劈裂;苗木粗壮通直;主侧枝分布均匀,能构成完美的树冠;无病虫害和机械损伤。b.植前整地及放线根据设计图纸要求,栽植地土质应基本满足植物生长需要,如发现土质太差,在栽植
18、前换填种植土,以保植株成活。根据图纸,在现场找出苗木实际栽植位置,用白灰撒处灰点,进行定点放线。一般采用行列式放线法及等距弧线放线法。c.树穴的开挖树穴开挖一般在运取苗木前12天进行。种植穴的大小依土球及根系情况而定,带土球的应比土球大1620cm,穴的深度一般比球高度稍深1020cm,栽植裸根苗木应保护根系充分舒展,树穴必须保证上下口径一致,避免出现上大下小的“锅底坑”,挖出的表土、心土应分别堆放。 苗木栽植施工要点a.栽植时间:应尽量缩短起苗与栽苗之间的时间差,做到随起随栽。b.苗木运输:在运输过程中,所有植物必须有良好的包装,以保证不受太阳、风吹等不良气候的侵害。裸根植物的根系应沾泥浆,
19、并包在稻草袋中,常绿树及灌木应有土球及草袋包装,到现场及种植前保持完好土球。c.苗木种植:将苗木的根系或土球放入树穴内,使其居中再将树木立起,保证垂直,然后分层回填种植土。一般每层2030cm,先填较肥沃的表土,填土后将树根稍向上一提,使根系舒展,用锨把将土捣实,直至填满穴坑。土痕应略平稍高于坑口,防止栽植后出现陷落、下沉,导致树干基部积水腐烂。坑土填平后,用余土环树,筑起拦水围堰并拍实以利浇水,高度不低于15cm。d.苗木浇灌:新植苗木的浇灌应以天然水为佳,之后48小时之内必须浇上一遍水,第二遍水随后进行,第三遍水在第二遍水后510天内进行。注意浇水必须浇足浇透,浇完第三遍后,应及时封堰,并
20、在树干基部周围堆成2030cm高的土堆,以保持土壤内水分。4.2.2施工工艺干、浆砌片石边坡测 量 放 样开工申请报告基 坑 开 挖工、料、机准备测量放样资料基 底 检 查沉降缝设置砌体养护砌筑坡面回填验收勾 缝片石边坡施工工艺框图边坡植物防护修整骨架内坡面铺撒客土喷播植草养护管理 边坡植物防护施工工艺框图4.2.3边坡防护技术措施干、浆砌片石边坡砌体应分层、分段砌筑,浆砌片石采用挤浆法砌筑,应坐浆饱满,各砌块的砌缝应相互错开,不得有通缝和空缝,表面平顺整齐,与边坡嵌接牢固密贴。砌筑完成后应及时采取有效的养护措施。骨架砌筑前应按设计型式、尺寸挂线放样,开挖沟槽,沟槽尺寸根据骨架尺寸而定。砌筑骨
21、架应从衔接处开始,自下而上砌筑,两骨架衔接处应处于同一高度。骨架应与坡面密贴,骨架流水面应与草坡表面平顺。骨架基础与下部侧沟平台,浆砌片石或浆砌片石水沟连接时,应整体砌筑,灰浆饱满不留缝隙。边坡植物防护骨架内铺立体植被护坡网时,在纵横向每隔1m左右用不短于15cm竹钉垂直打入边坡固定,客土后夯拍,使网与坡面密贴。草籽需选用根系发达茎矮叶茂且适于本地区成活的多年生草种,喷播草籽含量每平方米不小于1520g。完成喷播后,需及时进行洒水养生。对漏喷、草籽发芽成活过9稀部位还应进行补喷。种草时分撒播和行播两种方式,草籽埋入深度不小于5cm,为使草籽均匀分布,可将种子与砂、干土或锯末混合。草籽养生期内,
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