r边坡防治工程技术交底及浆砌石护坡方案.doc

上传人:sccc 文档编号:5516828 上传时间:2023-07-16 格式:DOC 页数:14 大小:175.01KB
返回 下载 相关 举报
r边坡防治工程技术交底及浆砌石护坡方案.doc_第1页
第1页 / 共14页
r边坡防治工程技术交底及浆砌石护坡方案.doc_第2页
第2页 / 共14页
r边坡防治工程技术交底及浆砌石护坡方案.doc_第3页
第3页 / 共14页
r边坡防治工程技术交底及浆砌石护坡方案.doc_第4页
第4页 / 共14页
r边坡防治工程技术交底及浆砌石护坡方案.doc_第5页
第5页 / 共14页
点击查看更多>>
资源描述

《r边坡防治工程技术交底及浆砌石护坡方案.doc》由会员分享,可在线阅读,更多相关《r边坡防治工程技术交底及浆砌石护坡方案.doc(14页珍藏版)》请在三一办公上搜索。

1、week a contact, and month a met service system of based Shang, gradually building a meet actual of leaders one-on-one and village (community) counsel service system. Speed up the nationwide network of two hubs, one stop-style common law system construction, to build a comprehensive public legal serv

2、ices centre, provide legal advocacy, legal advice, legal assistance, dispute mediation, such as one-stop legal service, effectively serve the people the last mile problem. Improve legal aid public satisfaction rate. Continue to increase legal aid efforts, broaden the field of legal aid services and

3、channels, the economic difficulties the complainants case registration system, gradually included in the scope of legal aid, lower thresholds, transition assistance to low-income groups by disadvantaged groups, so that should aid assistance and support aid. Sound district, town and village levels of

4、 legal aid network, pays special attention to legal aid volunteer team to form efficient and convenient legal aid for half an hour. Strengthening the civil service convenience and benefit. Legal service to the line, the administration of Justice and promote development and strengthening the practice

5、 of public letters promoting fairness and justice topics such as practical activities as the carrier continued holiday reservation certificate, notary green channel, online registration and a number of initiatives for the convenience, ensure that the notary to complete service zero distance. Receive

6、d and accepted strictly regulate notarization system strengthening sector collaborative linkage, improving the quality of notary to handle. Continue to implement civil revitalization, upgrade the quality of talents, business development, regulatory strengthening innovation, image optimization, servi

7、ce six projects, promoting the standardization of notarization. Five is working to enhance the administration of Justice and social satisfaction. Building a team of highly qualified police officers of administration of Justice, is to accomplish various tasks, strong organizational guarantee to achie

8、ve established goals. Strengthen team construction. Strictly implementing the theory of group learning plan, keep studying month system, enhance the relevance of learning, effectiveness. Adhere to the grass-roots level first-line investigation, deepening the three-three activities, linked to the imp

9、lementation mechanism, strengthen the team construction. Focusing on system improvement. Establish and improve the management system, System State, system management, System Manager, deepening the open, normative acts, strictly implement democratic centralism, strengthen management, strengthen super

10、vision, improve the overall quality. One is to further rationalize the judicial system. Implement the opinions on further strengthening the construction of judicial administrative, to straighten out the system, strengthening the personnel strength, improve the Office conditions, focusing on active o

11、perations, raise their social image, and vigorously promote the construction of judicial administrative, consolidate the establishment of the judicial administrative achievements. Increase evaluation efforts and adhere to the construction, management and work and guidance Division . Continues counte

12、r-four winds and consolidate the results of mass education activities, strengthen the style of efficiency construction. Carry out the demonstration, warning education, and job education, enhance the relevance and effectiveness of education,春晓老年公寓边坡整治工程技术交底一、工程概况宁波市北仑区春晓镇老年公寓(二期)工程位于春晓镇慈峰村,属于老年公寓一期扩建

13、工程,老年公寓需要进行扩建,根据春晓镇政府提供的扩建方案,需要将现有山坡进行开挖,整体开挖至标高46m。拟开挖山体主要由粘土构成,山上毛竹茂密,植被良好。二、气候、地形、地质条件(一)环境气候条件该处所在区域属北亚热带湿润季风气候区,年平均气温16.2,主要雨季出现在36月(即春雨连梅雨,月雨日普遍超过半个月)和8月9月(即台风雨和秋雨,月雨日普遍超过半个月)。(二)地形地貌该处场地东侧、南侧均为耕地,分布有大量的人工植被,西侧为建设单位已建一期老年公寓,北侧为山坡坡脚,山坡上分布有大量的植被(毛竹),植被茂密,场地现状较稳定。场地地势局部起伏较大,整体呈北高东低,北部标高一般在4850m,南

14、部标高一般在47m左右。地貌成因属于浙东南沿海低丘陵区残积地貌,覆盖层主要为第四纪残坡积松散堆积物。(三)地质根据宁波市北仑区建筑设计研究院提供的北仑区春晓镇老年公寓岩土工程勘察报告(详细勘察)报告,老年公寓位于东南沿海断皱带,场地勘探深度范围内的地基土划分为3个工程地质层,共6个亚层。地质报告指出在场地处于低山山坡坡脚附近,拟建单身公寓中部分分布有一东西向悬坡低边坡,悬坡在兴建春晓镇老年公寓(一期)就已经形成,暂未采取任何支护处理措施,暂未发现滑坡、崩塌现象,目前稳定性良好。经现场调查,发现坡体后缘有一条东西走向的土沟,经仔细分析辨认,该土沟形成年代较为久远,附近居民反映并无滑动迹象,土坡周

15、围及顶部并无裂缝,而且山坡毛竹均直立挺拔,可排除滑坡因素,但考虑到山坡排水需要,需要将土沟回填。三、设计方案根据地质情况与现场踏勘,项目组分析认为山坡主要为土质边坡,二期坡度较缓,现状坡度为1520左右,采用重力式挡墙较为合适,考虑到山坡土质较为疏松,渗流量较大,增加挡墙断面尺寸的同时,增加挡墙内排水管数量,适当调整安全距离并且坡面按照1:1.5坡率放坡。设计方案为:(1)坡脚位置距离3#宿舍楼建筑4m作为安全距离,由于门球场坡高最高,若安全距离较大时,开挖增加量会很多,而且门球场位置建筑较少,安全距离设置为2m。(2)将开挖范围分为A、B、C三段,见下图。防护区段图其中最高坡高位于开挖范围西

16、北侧即B段,垂直开挖8m左右,设计方案采用仰斜式挡墙防护,见下图。挡墙B段设计4m高,A、C两段由4m向两侧低处过渡,逐渐过渡至2m高,挡墙上侧采用1:1.5坡率放坡,坡面植草防护,防止冲刷,挡墙内设置UPVC排水管,防护形式见下图。边坡挡墙设计图(3)坡顶3m外设置截水沟,坡脚处设置排水沟。(4)挡土墙前为排水方便,采用10cm厚C20水泥砼硬化。(5)B段坡顶土沟回填。四、施工技术要求(一)边坡开挖1、在边坡工程施工前,应对施工中的施工方法、施工工艺程序、劳动力组织和安全质量管理给出详细的设计,并制订相应的施工方案。2、施工放线测量边坡开挖施工之前,要求按照设计图纸严格测放边坡顶线及截排水

17、沟位置;由于坡体地形的复杂性和前期测设工作的困难因素,难免存在一定的差异和变形,如发现坡级差异,应及时与设计联系,以便进行必要的设计补充完善或修正变更。3、土石方工程施工边坡土石方开挖施工要求严格按照具体有关设计要求进行,要求严格按照从上至下的开挖施工顺序逐级开挖。对于土方边坡开挖,不得采用爆破施工。对于开挖实际揭露地层情况与设计防护加固工程不符时,应及时通知设计代表确认是否调整或变更防护加固工程措施。(二)排水工程施工 坡顶截水沟要求在边坡施工前施做,并发挥作用,减少地表水对坡面冲刷和入渗坡体的作用和影响。由于汇水面积较大,而且山坡土质疏松,渗水量较大,故在具体施工过程中,UPVC泄水孔数量

18、可根据施工揭示地层及含水状态等实际情况适当增加孔位。(三)砌体工程施工1、边坡截水沟,采用砌体砂浆采用M7.5水泥砂浆,空隙需充填饱满,并按有关施工规范和规定砌筑。2、砌块材料要求石质均匀,符合规定尺寸要求,采用未风化且不易风化之硬石砌筑(石料抗压强度30MPa)。(四)变形监测及应力监测施工期间主要监测坡体变形,以变形数据来修正设计,指导施工,以确保施工安全,并且检验工程效果。边坡竣工后主要监测坡顶水平及垂直位移;地表位移监测。监测周期为坡体开挖至竣工完成后不少于一年。根据坡体地质情况及稳定程度,施工期监测内容及项目等详见表2。边坡加固竣工后应在挡墙顶部设置位移观测点,每10m一点,监测频度

19、可降低至每半个月测一次。表2 边坡监测内容表 序号监测内容布置位置施工期监测频度1地表位移沿山坡布置,每20m一点每2天一次2地下水渗水泄水孔每2天一次 (五)质量控制及验收标准混凝土结构工程施工质量验收规范(GB50204-2002)建筑边坡支护技术规范(DB50/5018-2001)砌体工程施工质量验收规范(GB50203-2002)施工过程中应做好各工序施工和检验记录并签名。对于发生的事故及其处理情况,异常地质情况等均应详细记录备案。(六)施工勘查和变更原则由于勘查精度的限制及地质条件的复杂性,施工单位要及时编录施工地质情况,根据施工地质情况在必要时提出反馈、变更设计建议,以实现信息化施

20、工,优化和提高边坡治理工程的效果。五、其它说明1、边坡加固工程施工期暂按2个月考虑。因边坡变形受地下水影响较大,故原则上要求避开雨季施工,以确保边坡稳定和结构安全。2、由于其地质条件复杂,应结合现场实际开挖揭示地层信息及坡体结构条件进行必要的调整与完善,即进行动态设计和信息化施工,从而达到经济合理和安全可靠的目的。浆砌石护坡方案一、工艺流程:根据现场实际情况,按先护脚后护坡,再封顶的原则施工。本工程护坡分为三个施工段,每一施工段按以下流程施工:进场设备、材料及砂浆配合比报告,工序报验,边坡土方清理、基座施工、砌石(埋管)、勾缝、表面清理、伸缩缝填嵌、养护。二、施工方法:1、基土清理基面清理范围

21、包括坡面和基面,顶部边界应在设计基面边线外。避免对已清理的基土造成人为破坏,堤基表面不合格土、杂物等必须清除,堤基范围内的坑、槽、沟等,应按堤身填筑要求进行回填处理。2、基土碾压护坡坡面部分,无法采用平面碾压设备进行施工,拟采用平面振捣设备进行表面振捣。发现局部“弹簧土”、层间光滑、层间中空、松土层或剪切破坏等质量问题时,应及时进行处理,并经检验合格后,方准铺填新土。3、基座施工基槽开挖验收合格后,装模报验浇混凝土养护。混凝土在搅拌机里搅拌后用溜槽送至施工面。采用做浆砌石法层层砌筑。4、砌石施工原材料:、石料现场验收。砌石材质应坚实新鲜,无风化剥落层或裂纹。石材表面无污垢、水锈等杂质。用于表面

22、的石材,应色泽均匀。石料密度应大于25KN/m3,抗压强度应大于20MPa。石料外形规格,毛石应呈块状,最小重量不应小于25kg。规格小于要求的毛石,可以用于塞缝,但其用量不得超过该处砌体重量的10%。料石应棱角分明,各面平整。其长度应大于30cm,最小边厚度应大于20cm,料石外露面应修凿加工,砌面高差应小于5mm。、砂料现场验收。质量要求料径为0.155mm,细度模数2.53.0。砌筑毛石砂浆的砂,其最大粒径不大于5mm,砌料石砂浆的砂,最大粒径不大于2.5mm。、水泥现场验收。水泥品种和强度等级符合规定,到货的水泥应按品种、强度等级、出厂日期分别堆存,受潮结块的水泥禁止使用。用水标准为适

23、宜饮用的水均可使用,不影响混凝土、砂浆强度的增长,水的pH值不溶物、可溶物、氯化物等含量符合规范要求。砂浆:、用量必须满足施工图规定的强度及施工和易性要求,用量必须通过试验确定。施工中需要改变胶凝材料的用量时,应重新试验。、拌制砂浆应严格按照M7.5水泥砂浆进行配合比,配料的称重允许误差应符合下列规定:水泥为2%,砂为3%,外加剂为1%。、拌合时间:此工程必须使用砂浆搅拌机搅拌,拌合不少于23min。、胶凝材料应随拌随用,允许间歇时间应通过试验确定。储运发生离析或泌水时,砌筑前应重新拌合,已初凝的砂浆不得使用。浆砌砌筑:一般要求:、砌筑前洗掉石料表面泥垢,保持石料表面湿润。、应采用坐浆法分层砌

24、筑,铺浆厚度35cm随铺随砌。砌筑缝隙用砂浆填充饱满,用工具插捣密实。不得无砂浆直按贴靠,严禁先堆石料后用砂浆灌缝。、上下层砌筑应错缝,外露面平整美观砌缝留3cm深空隙。水平缝宽不大于2.5cm,竖缝宽不大于3cm。、砌筑因故停顿,砂浆超过初凝时间,应待砂浆强度达到2.5MPA后才可继续施工。续砌前应清除原砌体表面浮渣,砌筑时应避免振动下层砌体。 、勾缝前必须清缝,用水冲净保持缝内湿润,砂浆应分次向缝内填塞密实。勾缝砂浆标号应高于砌体砂浆。应按实有砌体缝勾平缝,严禁勾假缝、凸缝。砌筑完毕后应保持砌体表面湿润做好养护。、砂浆配合比、工作性能等,应按设计标号通过试验确定,施工中应在砌筑现场随机制取

25、试件。、砌石应采用铺浆法砌筑,水泥砂浆沉入度为46cm。当气温较高时,应适当增大沉入度。、在铺砌灰浆时前,石料应洒水湿润,使其表面充分吸收,但不得残留积水。砌筑时不得采用外面侧立石块,中间填芯的砌筑方法。砂浆应饱满,石块间较大的空隙应先填塞砂浆,后用碎石或片石芡实,不得先摆碎石后填砂浆,或干填碎石块的施工方法,石块间不应相互接触。、无防雨棚的作业面,遇到大雨应立即停止施工,妥善保护表面,雨后先排除积水,并及时处理受雨冲刷部位。、挡土墙施工时,若原坡面较高较太陡,应放缓至稳定边坡后在行砌筑,且宜边坡砌筑用原土逐层回填并夯实,层厚300mm,压实系数0.90。挡土墙每10m设置伸缩缝,缝宽2cm,

26、沥青麻絮填塞。操作要求:、铺浆(座浆)采用水泥砂浆厚度为设计厚度的1.5倍,使石料安装后有一定的下沉余地,有利灰缝座实。逐块座浆安砌,认真调整座浆密实,避免形成空洞。对于毛石砌体,座浆厚度为8cm左右,以盖住凸凹不平层面为度。、摆放石料前洗净湿润,摆时铁锤击打石面使座浆溢出为度。严格控制砌筑缝隙宽度,采用水泥砂浆砌筑缝隙宽为24cm。、在石料摆砌就位后,及时竖缝灌浆并振捣密实。振实后缝隙砂浆面略有下沉,可待上层平缝铺浆时一并填满。、振捣:水泥砂浆砌筑缝隙宽度较小,采用人工插捣时一般使用钢筋、竹片、钢板。、二次砌筑时间:每一个单位砌筑面铺砌完成2436h后(根据气温、水泥品种、强度等级不同而定)

27、,即可进行清理冲洗,准备上层铺砌。质量要求:、平整:同一层面应大致砌筑平整,相邻砌石高差应小于2030mm。、稳定:石块安装必须自身稳定,大面朝下,适当摇动或敲击,使其平稳。、密实:严禁石块直接接触,座浆及竖缝砂浆填塞应饱满密实,铺浆均匀,竖缝填塞砂浆后应插捣至表面泛浆为止。、错缝:同一砌筑层内,相邻石块应错缝砌筑,不得存在顺向通缝,上下相邻砌石也应错缝搭接,避免竖向通缝。养护:砌体外露面,在砌筑后1218h之间应及时养护,经常保持外露面湿润,水泥砂浆砌体的养护时间超过14d。通病防治:浆砌石不密实。、现象:已砌筑部位有来头狗洞或缝隙,拆开检查可见砂浆不饱满。、原因:砂浆填筑不饱满,灰缝宽度不

28、够,没有分层卧砌。、预防措施:采用铺浆法砌筑,两块石头之间填浆饱满;分层卧砌,内外搭接;每片砌筑作业区安排专职质检员旁站检查,包质量进度负责到底。做好现场记录,出现问题追究质检员责任。质量检查:、护坡砌体强度必须符合施工图纸的要求。、砌体密度和孔隙率检查,坡高三分之一下至少挖坑一组,坡高三分之一上,试坑数量由监理与承包人协商确定,所测密度空隙率必须达到施工要求。、砌缝应密实,无架空漏浆现象,有抗渗要求的部位进行压水试验,检测单位吸水率。、砌体表面砌筑缝隙宽度满足规定要求。砂浆勾缝、勾缝水泥砂浆应采用细砂和较小的水灰比,水灰比控制在1:11:2之间。、防渗用砂浆采用P42.5以上普通硅酸盐水泥。

29、、清缝应在砌筑24h后进行,缝隙宽度不小于砌筑缝隙宽度,缝深不小于缝宽的2倍,勾缝前必须将槽缝冲洗干净,不得残留灰渣和积水,并保持勾缝面湿润。、勾缝砂浆必须单独拌制,严禁与砌体砂浆混用。、当勾缝完成和砂浆终凝后,砌体表面应刷洗干净,至少用浸湿物覆盖保持21d。在养护期间应经常洒水,使砌体保持湿润,避免碰撞和振动。反滤排水、铺反滤层前,应将基面用挖除法整平。对个别低洼部分,用与基面相同土料或反滤层第一层滤料填平。、反滤层铺筑应符合下列要求:铺筑前应做好场地排水、设好样桩、备足反滤料;不同粒径组的反滤料层厚必须符合设计要求;应由底部向上按设计结构层要求逐层铺设,并保证层次清楚互不混杂,不得从高处顺

30、坡倾倒、分段铺筑时,应使接缝层次清楚,不得发生层间错位、缺断、混杂等现象。、已铺筑反滤层的工段,应及时铺筑上层砌石,严禁踩踏。、按照施工图纸要求的防护结构高于30cm设排水孔,梅花形布置,排水孔间距23m。安放60PVC排水管,内层管口用土工布包裹。三、质量控验1、质量控制、检查浆砌石体的施工操作和质量,是否符合有关规范的规定。、检查变形缝施工和止水结构制作,是否符合设计要求。、水泥砂浆试块强度评定,应符合水工保护施工规范的要求。、浆砌石体外观质量合格标准,按下表规定检测:检查项目结构类型允许偏差检查频率检查方法堤轴线偏差各类砌筑墙(堤)40 每20延米测不少于2点用经纬仪测墙顶高程浆砌石墙(

31、堤)0+40混凝土墙(堤)0+30墙面垂直度浆砌石墙(堤)0.5%同上用吊垂线和皮尺量混凝土墙(堤)0.5%墙顶厚度各类砌筑墙(堤)-10+20同上用钢卷尺量浆砌石墙(堤)25注:质量可疑处必须检测。2、质量验收工程验收可分为分部工程验收和竣工验收两个阶段。验收组按浆砌石的要求进行验收。、分部工程完成后应及时进行验收。隐蔽工程验收可分段进行,完成一段验收一段。未经验收,施工单位不得进行下一道工序施工。、分部工程验收的图纸、资料和成果应按竣工验收的制备。、工程完工后,提交经工地技术负责人签署的下列文件和资料:竣工图纸;施工中有关设计变更的说明和记录;施工单位的试验、测量原始资料和成果及主要护坡材

32、料的质量保证书;质量事故记录、分析资料及处理结果;单元工程质量评定表、隐蔽工程检查记录、照片或影像资料;工程质量自检报告;施工总结报告和清单;施工大记事。、竣工验收合格后,将所有资料整理成册,移交项目指挥部,并抄报有关部门备案。constructing the corruption line. Strengthening professional ethics education for lawyers, legal workers, and strengthen services management window for the people, carry out supervision

33、and inspection, solicit customer suggestions and opinions, and constantly improve our work efficiency, establish a good social image of the administration of Justice. Comrades: change of County, Township and village levels in our County has been successfully completed. After the end of the General,

34、cadres the focus of the work will no doubt move to strengthen the construction of leading group of recurring, ideas, abilities, style and other aspects, guide and inspire leaders brace into the role, with a new look, new image, new as to meet new challenges, new mission, create the new achievement.

35、According to province discipline and * municipal of unified deployment, County decided in this year concentrated General end Hou, in County members cadres in the carried out once clean pragmatic, and ruling for people theme education activities, main purpose is education guide General members cadres

36、 especially General Hou of leaders at all levels cadres, further built prison people, and ruling for people concept, to strong of party and excellent of style, for achieved * new a round across development provides powerful guarantees. Today this section independent Commission against corruption par

37、ty lecture, I wants to to clean pragmatic, ruling for people, firm set right of values, and power views and achievement views for theme, and everyone Exchange three a aspects of content: first, combined I County Qian soon occurred of case, talk about current of anti-corruption situation, let everyon

38、e recognize current anti-corruption of severe sex and urgency; then, talk about leaders how through set right of values, and power views and achievement views, stitch, keep live repelling of bottom line; last, Talk about being a leader should possess the kind of quality, how to clean a pragmatic win

39、d power as people established good personal image. , Analysis of the current phenomenon of violating-made easy, sadly corruption is an old heavy topic. It is like a cancer, a serious threat to a countrys development and stability. A national corruption when there is danger of subjugation; a person k

40、een on corruption, its short life path that lead to death. From an international perspective, World Bank data show that in developed countries and in the developed countries, paid bribes of more than $ 1 trillion a year. International non-governmental organization against corruption Report noted tha

41、t because of government corruption, the global annual economic losses of US $ 400 billion. Our country in 2010, discipline inspection and supervisory organs filed a total of 139,621, case 139,482, punishment imposed party disciplines 146517, suspected of a crime were transferred to judicial organs f

42、or handling 5373, filing and closed a number of party disciplines and dispose of the number has increased. International anti-corruption organization Transparency International corruption index rankings, in 180 countries and regions in the world, China ranked 79th. This is a bad thing for people, sh

43、ocking and rankings. Face of the corruption situation in todays society, the County has always attached great importance to strengthening and improving the Countys clean government and anti-corruption work. In recent years, insist on strengthening the construction of anti-corruption education, perfecting the system to punish and prevent corruption, clean up two wind and

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 建筑/施工/环境 > 农业报告


备案号:宁ICP备20000045号-2

经营许可证:宁B2-20210002

宁公网安备 64010402000987号