ICS75-010 P71 备案号:65569—2018 SY 中华人民共和国石油天然气行业标准 P SY/T6769.2—2018 代替SY/T6769.2—2010 非金属管道设计、施工及验收规范 第2部分:钢骨架增强聚乙烯复合管 Specification for the design construction and acceptance of non-metallic pipelines- Part 2:Steel skeleton reinforced polythene posite pipes 2018-10-29发布 2019-03-01实施 国家能源局发布 中华人民共和国石油天然气行业标准 非金属管道设计、施工及验收规范 第2部分:钢骨架增强聚乙烯复合管 Specification for the design construction and acceptance of non-metallic pipelines- Part 2:Steel skeleton reinforced polythene posite pipes SY/T6769.2—2018 主编部门:中国石油天然气集团公司 批准部门:国家能源局 石油工业出版社 2018北京 国家能源局 公 告 2018年第12号 依据《国家能源局关于印发〈能源领域行业标准化管理办 法(试行)〉及实施细则的通知》(国能局科技〔2009]52号) 有关规定,经审查,国家能源局批准《矿用风冷调速型磁力偶 合器》等204项行业标准,其中能源标准(NB)54项、石化标 准(NB/SH)8项、石油标准(SY)142项,现予以发布. 附件:行业标准目录(节选) 国家能源局 2018年10月29日 ...
施工技术 2011年3月下 62 CONSTRUCTION TECHNOLOCY 第40卷第337期 青岛地区农村住宅抗震性能研究 刘兴才1,胡长明,田飞,祝甲阳,刘学兵2,曾凡奎2 (1.西安建筑科技大学土木工程学院,陕西西安710055;2.青岛农业大学建筑工程学院,山东青岛266109) 【摘要]近年来地震灾害造成了大量的人员伤亡和经济损失,特别是在农村,很多住宅没有考虑抗展设计,遭受的 敬坏更为严重.对青岛地区农村住宅抗晨设防情况进行调查分析,发现该区住宅的构造柱和圈梁的设置、横墙间 距等不满足抗震要求,提出了应加强屋盖及墙体连接、改变房屋的结构形式、设置构造柱及圈梁等改进措施. [关键词]青岛地区;农村住宅;抗震性能 【中图分类号]TU352.1 [文献标识码]A [文章编号]1002-8498(2011)06-0062-02 Study on the Seismic Capacity of Rural Residential Building in Qingdao Liu Xingcai' Hu Changming' Tian Fei' Zhu Jiayang' Liu Xuebing? Zeng Fankui (1.Civil Engineering College Xi'an University of Architecture and Technology.Xi'an Shaanxi 710055 China; 2.Inatitute of Architecture and Civil Engineering Qingdao Agricultural Unisersity Qingdao Shandong 266109 China) Abstract:In recent years the earthquake causes a mass of casualties and serious economic loses. Especially in rural area many residential buildings suffer serious damage with no consideration for the seismic design.Authors make investigation and analyze the seismic fortification of Qingdao rural residential buildings.The result shows that the setting of structural column and ring beam and the space between cross wells can not meet seismic requirements.Moreover authors propose improvement measures such as strengthening the connections of roof and wall changing the structure form setting the columns and ring beams. Key words:Qingdao area;rural residential building:seismic capacity 近年来,我国住宅建设开始大规模发展,特别是在青岛市村镇中属于中等或中上,基本反映了这一 农村住宅更是发展迅速,许多经济条件较好的农村地区新农村的发展...
2016年2月下 施工技术 第45卷第4期 CONSTRUCTION TECHNOLOGY 35 D0I:10.7672/sgjs2016040035 轻型木结构工业化住宅内装模块化研究及应用* 刘长春,孙媛媛2 (1.南通大学建筑工程学院,江苏南通226019;2.南通大学艺术学院,江苏南通226007) [摘要]介绍轻型木结构住宅内装模块化发展的概况以及其一般做法,并通过苏州皇家住宅内装做法和工程应用 的介绍,进一步阐述轻型木结构工业化住宅的内装模块化. [关键词]装配式;轻型木结构;工业化住宅;内装模块化 [中图分类号]TU366;TU741 [文献标识码]A [文章编号]1002-8498(2016)04-0035-04 Study on Common Practice and Application of Modular Interior Fit-out of Light-wood Frame Structure Industrialized Housing Liu Changchun' Sun Yuanyuan2 (1.School of Architecture Engineering Nantong University Nantong Jiangsu 226019 China; 2.School of Art Nantong University Nantong Jiangsu 226007 China) Abstract:The authors introduced mon practices and application of modular interior fit-out of light- wood frame structure industrialized housing in China and further elaborated modular interior fit-out of industrialized housing of light-wood frame structure by the practices and actual project of Suzhou Crownhomes Co. Ltd. Key words:precast;light-wood frame structure;industrialized housing;modular interior fit-out 轻型木结构住宅是指采用小尺寸规格材、木基原木结构体系.轻型木结构体系住宅最适用于工 结构板材或石膏板材制作的木骨架墙体、楼盖和屋 业化生产,木材使用上也较为节约,是当前木结构 盖系统构成的木结构体系住宅.轻型木结构体系体系住宅的主要形式;梁柱结构体系木结构住宅的 适宜建造3层及以下的独立式或联排居住建筑121. 造价偏高,适用于体量较大的住宅和木结构体系公 工业化住宅内装模块化是指为了取得住宅室 共建筑;原木结构体系住宅虽然形象特征鲜明,但 内装饰(含陈设)及家居用品在设计、生产、施工、使 是在风格和工艺上具有一定的局限性. 用、管理等全生命周期中取得最佳效益,从系统观 轻型木结构住宅按照结构形式分为连续墙骨 点出发,研究住宅内装的构成形式,用分解和组合 木框架结构体系和平台框架式结构体系两种,其中 的方法建立住宅内装模块系统,并和建筑结构支撑 后者的楼盖和墙体相对独立,可分开建造,更适合 体系统、围护结构模块系统(外装模块系统)等物质 后场预制和现场装配的模式,因此成为当前轻型木 构成要素共同构成住宅产...
【关键词】隧道工程;软岩隧道;超前支护;注浆;试验 [中图分类号】U456[文献标识码]A【文章编号]1002-8498(2017)01-0102-04 NewMethod andItsApplication ofAdvanced GroutingLining SupportofSoftRockTunnel Han Suwen (China Railway 22nd Bureau Group Co.,Ltd.,Beijing 100043,China) Abstract :Support technology of soft rock tunnel with large cross section has been doing a lot of research, whichpresentsaarietyfadvanced supporinthpastitisnot systmofupportandsupportmeasre and a series of theory of sof rock engineering geomechanics problems, the soft rock concept, classification of deep buried weak surrounding rock, various types of soft rock deformation mechanism of soft surrounding rock supporting reasons for the difficulty and weak surrounding rock supporting principles of mechanics. This paper presents a new advanced grouting lining support method based on the study on support methods of soft rock tunnel. The test result shows that it has good effect. Key words:tunnels; soft rock tunnel; advanced supports; grouting; testing 0引言前支护理论方面虽然有超前锚杆、超前小导管、水 软岩的基本特性主要表现为强度低、易风化、平旋喷注浆、机械预切槽法、超前管棚法以及顶管 孔隙比大、容重小、易渗水等,具有显著的膨胀性和预支护等多种方法,但关于深埋软弱围岩的概念、 明显的时效特性,往往对隧道施工安全和工期造成分类、各类软弱围岩的变形力学机制、软弱围岩难 严重影响。
2011年12月下 施工技术 第40卷第355期 CONSTRUCTION TECHNOLOGY 43 软土基坑主动区土压力与位移关系实测研究 聂宗泉,汪清河,周奇1,孟少平2,张尚根3 (1.中铁四局集团,安徽合肥230023:2.东南大学土木工程学院,江苏南京210096: 3.解放军理工大学工程兵工程学院,江苏南京210007) [摘要]在对上海地铁M8线延吉中路站基坑主动区土压力和地下连续墙水平位移实测资料分析处理的基础上,就 主动区土压力强度和连续墙水平位移之间关系进行深入研究.分析结果表明,土压力和位移之间关系与双曲线具 有很好的相关性,土体水平基床系数沿深度增加,但超过一定深度后增加趋缓. [关键词]地下工程;软土地区;深基坑;土压力;位移;双曲线模型 [中图分类号]TU431 [文献标识码]A[文章编号]1002-8498(2011)24-0043-04 Monitoring and Research on Relationship Between Earth Pressure in Active Area and Displacement of Foundation Excavation in Soft Soil Nie Zongquan' Wang Qinghe' Zhou Qi' Meng Shaoping? Zhang Shanggen' (1.No.4 Chinese Railweay Bureau Group Co.Ltd.Hefei Anhui 230023 China;2.College of Civil Engineering Southeast University Nanjing Jiangsu 210096 China;3.College of Engineering Corps PLA University of Science and Technology Nanjing Jiangsu 210007 China) Abstract:Based on the monitoring earth pressure and displacement of diaphragm wall of deep foundation excavation of Yanji Street Station of Shanghai Metro line M8 the relationship between earth pressure in active area and displacement of diaphragm wall is studied in detail.The results show that the relationship between the earth pressure and the displacement of diaphragm wall may be expressed by hyperbolic model.The horizontal foundation coefficient of soil is increased with depth and the trend slows at some point. Key words:underground;soft soil area;deep foundation excavation;earth pressure;displacement; hyperbolic model 大量基坑工程实测2表明:土压力与支护结站,呈南北...
2013年8月上 施工技术 第42卷第15期 CONSTRUCTION TECHNOLOGY 103 D01:10.7672/sgjs2013150103 软土地质条件下树根桩技术在保护邻近顶管 施工地下管线中的应用 杜小萍,郝鑫,赵建立 (中冶天工上海十三冶建设有限公司,上海201900) [摘要]在上海市白龙港南线输送干线完善工程中,邻近顶管出洞口位置有1条600mm上水管线,顶管施工期间 必须进行保护.首先介绍了工程遇到的问题,然后介绍了采取的树根桩保护技术措施.监测数据表明,顶管出洞 施工过程中,树根柱对该上水管有很好的保护作用,沉降数据均在允许范围内,取得良好的经济效益和社会效益. [关键词]地下工程;顶管;树根桩;软土;应用 [中图分类号]TU753.1;TU478 [文献标识码]A [文章编号]1002-8498(2013)15-0103-03 Application of Root Pile in Protecting Underground Pipeline During Construction of Pipe Jacking in Soft Soil Du Xiaoping Hao Xin Zhao Jianli (CMTCC Shanghai No.13 Metallurgical Construction Co.Iad.Shanghai 201900 China) Abstract:During construction of Bailonggang pipe jacking in Shanghai root pile technology was adopted to protect 6600mm water pipeline nearby.Firstly the engineering difficulties were introduced in detail. The protecting technology was also discussed.The monitoring data shows that the root pile is very effective to restrict the deformation of water pipeline nearby.The settlement is controlled in allowable range.Good social and economic benefits are achieved. Key words:underground;pipe jacking;root piles;soft soil;application 顶管施工是将预制的箱形或圆形管节,利用顶土、灰色淤泥质黏土中.顶管顶进过程中易发生地 进设备顶入一定深度的土层中,构成立体交叉通道层损失,导致地层产生不均匀沉降.该段顶管全长 或涵洞的施工方法.在顶管施工尤其是顶管出936.3m 管内底标高为-3.440~-4.590m 管道平 洞过程中,顶管周边的土体会发生不均匀沉降或地 均埋深5.465m(4.69~6.24m) 顶管管节采用F形 表隆起,若处理不当,将造成顶管周围地下已有管 钢承口式钢筋混凝土管,楔形橡胶圈接口. 线损坏,导致管线断裂或接头错位2.目前,保护 施工场地西侧有1根d600mm上水管(铸铁), 地下管线主要采用悬吊法、支撑法和土体加固 为承插口式,与W3号工作井顶管出洞口距离为 法等(3). 8.02m 上水管靠近W3号顶管井处埋深为1.6m. 本文结...
2014年2月下 施工技术 第43卷第4期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/sgjs2014040105 软土地基真空预压处理工艺现场试验对比研究 顾敏智,赵树光 (中交第三航务工程勘察设计院有限公司,上海201612) [摘要]真空预压排水工法适用于处理厚度较大的软弱黏性土层,其施工方便,作业效率高,适于大规模软弱地基 加固.但排水板间距和透水通道等工艺的选择直接影响到固结效果、工期和经济费用,因此,通过现场试验,对不 同工艺试验区的试验过程、试验结果进行定性、定量对比分析,以取得工法分析模式的校正参数,为将来大面积地 基处理提供参考. [关键词]地基基础;软土地基;真空预压;试验 [中图分类号]TU472 [文献标识码]A [文章编号]1002-8498(2014)04-0105-03 Field Testing Comparative Study on Vacuum Preloading in Soft Soil Foundation Gu Minzhi Zhao Shuguang CCCC Third Harbor Consultants Co. Lid.Shanghai 201612 China) Abstract:Vacuum preloading drainage technique is very suitable for the disposal of thick soft clay for it's convenience and high efficiency and it's highly used in the reinforcement of soft soil foundation.But the ascertainment of plastic drainage plate distance and permeable channel affects the consolidation result period of project and expense directly.So the aim of this paper is to get calibration parameters of analysis model and provide a reference for the disposal of large foundation through field test and quantitative analysis of test processes and results in different test area. Key words:foundations;soft soil;vacuum preloading;tests 0引言 地改工艺,选取了4个地基处理试验区,分别采用不 真空预压排水固结即通过对软弱地基土上覆 同的排水板间距和水平透水通道的工艺组合,分析 盖密封膜进行抽真空,使膜内外产生压力差,导致 了在相同真空预压周期内各试验区的固结效果、经 地基土中地下水排出,孔隙水压力逐渐转换为土体 济费用等差异,确认了相关地改工法对地基土的适 的有效应力,从而达到土体固结的效果.目前对真 用性,可取得相应工法分析模式的校正参数,为大 空预压机理的认识有负压固结理论和真空渗流场 面积地基处理项目提供参考. 理论2种解释. 1常用工艺特点分析 该工法主要施工工艺包括排水系统、抽真空系 1.1传统真空预压工艺 统、密封系统23个方面.其中排水系统...
[关键词]地基;软土;深基坑;支护;地下水;施工技术 [中图分类号]TU753 [文献标识码]A [文章编号】1002-8498(2014)07-0015-03 DeepFoundationExcavationConstructionTechnologybyTwoStages inDifferentDepthinSoftSoil ChenTianwei,Ma Huaizhang,WangZhongqi (The Third Construction Co.,Lad.of China Construction Eighth Engineering Division,Nanjing,Jiangsu 210046,China) Abstract:Wuxi Yunfu Building is constructed by two stages.In different depth of basement,the authors made research on foundation excavation supporting and treatment of groundwater and made up solution method according to the analysis on construction conditions.At last,the deep foundation excavation construction technology by two stages in different depth in soft soil foundations was formed and good effect was obtained. Key words;foundations; soft soil;deep foundation excavation;supports;groundwater;construction 无锡属于典型的软土地区,土质具有含水量 础,地下室及地上为框架结构。
[关键词】桩;深层水泥土搅拌桩;加固;施工技术 [中图分类号】TU753.3 [文献标识码】A [文章编号】1002-8498(2016)01-0024-04 Construction Technology of Deep Cement-soil Mixing Pile Under the ComplicatedSurroundingsinSoftSoil YuanQinglong,Liu Tianyang,ZhangXiuchuan,GengDongge,Zhu Minghua (China Construction First Group Construction &Development Co.,Lad.,Beijing100102,China) Abstract:With the development of underground space,urban rail transit network is more and more tunnel, subway station and surrounding building are extremely high, and the technical difficulty is great. To reduce the effect caused by excavation this project adopts the deep cement-soil mixing pile for reinforcement which achieves good effect. Key words:piles; deep cement soil mixing pile;reinforcement; construction 1工程概况 粉质黏土质,含少量砖渣、灰渣等,属中~高压缩性 某工程地上8层,地下5层,框架剪力墙结构, 土。
施工技术 2012年1月上 50 CONSTRUCTION TECHNOLOGY 第41卷第356期 软土地区冲击碾压对PHC桩桩身质量的影响 陈国栋,羌鑫梁2,严后军3,李伟1 (1.上海现代建筑设计集团申元岩土工程有限公司,上海200040; 2.上海勘测设计研究院,上海200434;3.江苏省淮球新河管理处,江苏淮安223005) [摘要]冲击碾压在提高地基强度、稳定性和均匀性、减少工后沉降、防止不均匀沉陷等方面都远远优于静碾压和 振动碾压.由于冲击碱压具有较高的冲击能,会引起一定范围内土体的振动,从而可能造成距施工现场较近的建 (构)筑物受损.结合苏州软土地区冲击碾压项目,对邻近PHC柱的冲击碾压施工进行了试验研究.试验结果表 明,冲击展压施工的影响深度≤2m;土体深层水平位移和PHC桩桩顶水平位移主要在冲击碾压施工20遍内产生; PHC桩低应变动测的结果显示25kJ冲击碾压对桩顶埋深为1m以上的PHC桩桩身质量并无破坏影响. [关键词]基础工程;桩基础;PHC桩;软土;冲击碾压;低应变动测 [中图分类号]TU471.8 [文献标识码]A[文章编号]1002-8498(2012)01-0050-03 The Influence of Impact Roller Compaction to PHC Pile in Soft Soil Area Chen Guodong' Qiang Xinliang2 Yan Houjun' Li Wei' (Shen Yuan Geotechnical Co.Ltd.Shanghai Xian Dai Architectural Design(Group)Co.Ltd. Shanghai 200040 China; 2.Shanghai Investigation Design Research Institute Shanghai 200434 China; 3.Jiangsu Huaishu New River Management Office Huaian Jiangsu 223005 China) Abstract:Impact roller paction is better than static roller paction and vibrate roller paction such as improving foundation intensity stability uniform reducing post-construction settlement and preventing uniform settlement.The high energy of impact roller paction will cause vibration to soil in a certain scope thus may cause damage to buildings nearby.Author studies the influence of impact roller paction to PHC pile in soft soil area in Suzhou.Research shows that the influence depth of impact roller paction is not less than 2 meters displacement of deep soil horizontal and PHC pile to...
施工技术 2013年7月上 38 CONSTRUCTION TECHNOLOGY 第42卷第13期 DOI:10. 7672/sgjs2013130038 软土中注浆桩与非注浆钻孔桩受力性状分析* 高虎艳',吴明²,黄强兵2 (1.西安市地下铁道有限责任公司,陕西西安710018;2.长安大学地质工程系,陕西西安710054) [摘要】通过现场静载试验,对比分析了非注浆桩和后注浆桩的受力性状1nn现场试验表明,非注浆桩的荷载-沉降 曲线为陡降型,后注浆桩的荷载-沉降曲线为缓变型1nn粉砂层中注浆桩极限承载力约为非注浆桩极限承载力的 1.33倍1nn对于非注浆桩和注浆长桩来说,桩身压缩占桩顶沉降比例较大,在进行长桩设计时,要充分考虑桩身质量 对桩顶沉降的影响1nn [关键词]桩;后注浆;软土;沉降;试验 【中图分类号】TU753.3 [文献标识码】A [文章编号】1002-8498(2013)13-0038-05 Stress Analysis of GroutingPile and Non-grouting Bored Pile in Soft Soil Gao Huyan',Wu Ming²,Huang Qiangbing” (1.Xi'an Metro Co.,Ld. ,Xi'an, Shanxi 710016, China; 2.Department of Geologic Engineering,Chang'an University,Xi'an,Shaanxi 710054,China) Abstract;Stress of grouting pile and non-grouting bored pile is analyzed according to the static load test. Test result shows that load-displacement curve of non-grouting pile is steep drop type and the curve of post-grouting pile is slowly varying type. Ultimate bearing capacity of grouting pile is 1. 33 times of non- grouting pile and long grouting pile. In long pile design, the influence of pile quality on pile top settlement should be considered. Key words:piles; post-grouting; soft soil; settlement; test 桩端后注浆技术在钻孔灌注桩工程中应用越桩作为试桩,试桩桩径为1.1m,桩长约为57m,桩身 来越广泛1nn桩端后注浆不仅可以应用于泥浆护壁混凝土强度等级为C45,桩端进入③粉砂层约为 钻孔灌注桩,用于干作业灌注桩效果也很好21nn8.0m1nn该试验场地各土层参数如表1所示,为对比 大量工程实践表明,该技术具有适用范围广、施工 分析后注浆桩的受力性状,对同一场地中1根非注 方法灵活、效益显著、便于普及并可显著提高桩的浆桩SZ1和1根后注浆桩SZ2进行了静载试验,2 承载能力等特点1nn实践经验发现,在不同桩端持力 根抗压试桩的参数如表2所示1nn 层中注浆效果往往也不同”1nn另外,桩径、桩长、桩 2桩端后注浆技术施工工艺流程 周土层性质、充盈系数、龄期等对注浆效果也有重 桩端后注浆技术是指灌注成桩前在桩身钢筋 要影响(4")1nn 笼上预埋注浆管,成桩一定龄期后利用高压注浆泵 单桩现场静载试验可获得试桩的实际受力状 将一定压力的水泥浆通过预埋的注浆管注人桩端 态1nn本文以桩端后注浆桩和非注浆桩的对比试验, 土层,通过浆液对桩端土层的渗透、填充、压密、劈 详细分析了超长单桩的荷载传递规律、桩身压缩规 裂、固结等作用来增强桩端土和桩侧土的强度,从 律、桩侧摩阻力分布规律等1nn 而提高桩极限承载力、减少桩沉降1nn桩端注浆属隐 1试验场地地质情况和试桩情况 蔽工程,注浆工艺对其成功与否有重要影响1nn桩端 试验场地位于江苏某工地,本次试验采用钻孔 后注浆工艺流程如图1所示1nn注浆时以注浆量为主 控因素(试桩SZ2设计注浆量为1.5t水泥),注浆压 *中央高校基本科研业务费专项(CHD2010JC072) 力为辅控因素1nn [作者筒介]高虎艳,高级工程师,E-mail:gaohuyan_2001@ [收稿日期]2013-...
施工技术 2015年11月下 22 CONSTRUCTION TECHNOLOGY 第44卷第22期 D0I:10.7672/8gs2015220022 苏州现代传媒广场施工塔式起重机选型与布置 陆凯,陈云琦 (中亿丰建设集团股份有限公司,江苏苏州215000) [摘要]目前施工现场塔式起重机的选型和定位布置主要是由土建施工单位来完成的.苏州现代传媒广场由于高 度高,起重量大,垂直运输工作量大,要求设备有良好的性能.以苏州现代传媒广场项目为例,介绍在超高层建筑 施工过程中对塔式起重机的选择和定位布置的原则、方法和注意事项. [关键词]高层建筑;核心筒;塔式起重机;选型;布置 [中图分类号]TU974 [文献标识码]A [文章编号]1002-8498(2015)22-0022-03 Selection and Layout of Tower Cranes in Suzhou Modern Media Square Lu Kai Chen Yunqi Zhongyifeng Construction Group Co.Lad.Suzhou Jiangsu 215000 China) Abstract:At present selection and location of tower cranes is mainly determined by civil construction enterprise on construction site.Because of high height large lifting capacity and large amount of vertical transportation the Suzhou Modern Media Square need to be constructed by good performance of tower crane.For Suzhou Modern Media Square as an example authors introduce principle method and attention items on selection and location of tower crane during construction of super tall buildings. Key words:tall buildings;core tube;tower cranes;selection;layout 我国超高层建筑在近些年发展迅猛,代表着中 目前施工现场塔式起重机的选型和定位布置 国的建筑水平也在飞速发展,而对工程施工过程中 主要是由土建施工单位来完成的,对于本工程超高 的一个重要因素—一垂直运输的要求也越来越高. 层建筑在垂直运输设备上的要求,归纳总结为以下 塔式起重机的设置已成为施工技术措施中十分关 几点. 键的组成部分.如何根据每个项目的具体工程特 1)建筑物高度高,垂直运输设备安装高度要求 征,在满足施工要求、确保吊装安全的同时,做到塔 高本工程办公塔楼塔式起重机最大安装高度为 式起重机选型及布置的经济合理,是一个涉及土 223.94m(臂根铰点至地下室顶板面标高). 建、钢结构、装饰、安装等专业施工组织部署的综合 2)起重量超高层建筑在设计时多数采用钢 性较强的技术课题. 混凝土结构,而钢构件质量都相对较大,这就要 1工程概况 求垂直运输设备起重量满足吊装钢构件的需求,本 苏州现代传媒广场工程总建筑面积约32万 工程最大单根构件质量为办公塔楼3层外围...
施工技术 2015年12月下 72 CONSTRUCTION TECHNOLOGY 第44卷第24期 D0I:10.7672/gj82015240072 膨胀土边坡入渗稳定性分析与锚杆支护参数研究* 侯定贵.2,史冀波3,肖莉莉12,焦艳平1.2,崔楠12 (1 中国矿业大学(北京)力学与建筑工程学院,北京100083;2.中国矿业大学(北京)深部岩土力 学与地下工程国家重点实验室,北京100083;3.宁波市交通工程质量安全监督站,浙江宁波315000) [摘要]裂隙的存在是膨胀土边坡在降雨条件下极易失稳的重要因素.为探索膨胀土边坡在降雨条件下渗流场变 化特点与稳定性,进行了0 2m与4m裂隙深度下的边坡饱和-非饱和渗流有限元数值模拟,在渗流分析基础上进行 基于极限平衡法的膨胀土边坡稳定性分析与错杆支护参数研究.分析结果表明,裂隙的存在及发展对膨胀土边坡 降雨人渗与孔隙水压力分布有显著影响;裂隙开裂越深,表层边坡体越易形成暂态饱和区,同时边坡越趋于不稳 定;裂隙发育膨胀土边坡滑坡滑面具有浅层性等特点,错杆长度、错固角度、错固位置等参数变化对降雨下膨胀土 边坡安全系数的影响与一般土质边坡有所区别;在分析基础上,提出了合理的错杆布置方式,以期对膨胀土边坡错 杆布置设计提供建议和参考. [关键词]边坡;裂隙;膨胀土;渗流;稳定性 [中图分类号]U213.1 [文献标识码]A [文章编号]1002-8498(2015)24-0072-04 Research on Stability and Anchor Support Parameters of Expansive Soil Slope Under the Condition of Seepage Hou Dinggui.2 Shi Jibo Xiao Lili.2 Jiao Yanping. Cui Nan.2 (1.School of Mechanic and Civil Engineering China University of Mining and Technology Beijing 100083 China; 2.State Key Laboratory for Geomechanics and Deep Underground Engineering China University of Mining Technology Beijing Beijing 100083 China;3.Ningbo City Traffic Engineering Quality Supervision Station Ningbo Zhejiang 315000 China) Abstract:Fissure is an important factor of expansive soil slope instability under rainfall.In order to explore the seepage field characteristics and stability of expansive soil slope under the condition of rainfall slope saturated and unsaturated simulation is done under 0 2 4m fissure depth and the expansive soil slope stability and the bolt support parameters an...
2015年11月上 施工技术 第44卷第21期 CONSTRUCTION TECHNOLOGY 101 D01:10.7672/sgj820152100101 绍兴乔波冰雪世界滑雪馆保温及防水综合施工技术 施文剑 (浙江省建工集团有限责任公司,浙江杭州310000) [摘要]绍兴乔波冰雪世界工程超大空间制冷保温技术国内较为罕见,在中国南方地区属首次应用.屋面保温则 采用挤塑聚苯乙烯泡沫塑料保温板叠加和玻璃丝保温棉组合;墙体围护结构综合了蒸压砂加气块、聚苯乙烯泡沫 塑料保温板、保温砂浆并且中间夹杂空气层相组合的形式;而滑雪坡道采用挤塑聚苯乙烯泡沫塑料保温板叠加的 方式,部分管道则采用橡塑保温棉的方式.介绍了整个滑雪馆屋面、墙面、楼地面三大系统6个面的保温节能和防 水关键措施. [关键词]保温;防水;屋面;墙面;楼地面;施工技术 [中图分类号]TU352.4 [文献标识码]A [文章编号]1002-8498(2015)21-0101-03 Integrated Construction Technology of Insulation and Waterproofing in the Qiaobo World of Ice and Snow in Shaoxing Shi Wenjian (Zhejiang Construction Engineering Group Co.Lid.Hangzhou Zhejiang 310000 China) Abstract:Combined with the Qiaobo World of Ice and Snow project in Shaoxing the large space refrigeration and insulation technology in China is rare and it is first used in South China.The insulation and waterproofing technology includes roofing insulation with extruded polystyrene foam insulation stack of glass plates and wire insulation cotton;wall structure integrating sand autoclaved aerated concrete blocks polystyrene foam insulation board thermal insulation mortar and a mixture between air layer bination form;and ski slope with extruded polystyrene foam insulation overlay board part of the pipeline is made of rubber plastic heat insulation cotton.This paper introduces the insulation energy saving and waterproof key measures of the 6 main systems of the roof wall and floor of the whole ski hall. Key words:insulation;waterproofing;roofs;wall;floor;c...
[关键词]钢结构:桁架;吊装;卸载 [中图分类号】TU758.11[文献标识码]A[文章编号〕1002-8498(2011)18-0055-04 ConstructionTechnologyofLarge-spanSteel TrussinShenhua TechnologyInnovationBase Song Guofu,Wang Haitao,Zhang Sanhu (China ConstructionFirst Building(Group)Co.,Lad.,Bejing100161,China) Abstract;The large-span truss roof is adopted in Shenhua Technology Innovation Base project. The lifting evaluation.Key technical measures are introduced emphatically including pre-assembly of large-span truss in field, trusses lifting with truck crane,monitoring of lifting points,scaffolding and steel pipe supports setting,steel truss welding,treating of close joints,aswellas unloading of truss.Thementioned method can ensure the construction time, safety and econoimical effect of steel truss. Key words;steel structures; trusses;lifting;unloading
1工程概况 北京市神华技术创新基地位于北京市昌平区。
2017年7月上 施工技术 第46卷第13期 CONSTRUCTION TECHNOLOGY 113 D0I:10.7672/8js2017130113 碾盆梁滑坡体控制爆破与变形监测技术 皇甫海军,常永健,李龙舟 (中交一公局海威工程建设有限公司,北京101119) [摘要]结合实际工程案例,详细阐述在临近滑坡体处爆破施工的技术控制和滑坡体的变形监测技术.通过分析 碾盆梁滑坡和长滩隧道的综合条件,基于滑坡体稳定的前提进行了长滩隧道开挖、爆破以及监测方案的设计.通 过现场监测,验证了处治方案的可靠性和风险控制措施的有效性. [关键词]滑坡;爆破;变形;监测 [中图分类号]U459 [文献标识码]A [文章编号]1002-8498(2017)13-0113-06 Controlled Blasting and Deformation Monitoring Technology of Roller Landslide HUANGFU Haijun CHANG Yongjian LI Longzhou (Highcay Engineering Construction Co.Ld.of FHEC of CCCC Beijing 101119 China) Abstract:Based on engineering practice this paper expounded blasting control technology and landslide monitoring.According to the conditions of roller landslide and the Changtan tunnel the design of tunnel excavation blasting and monitoring scheme was made.The monitoring result shows that the measurement scheme and risk control measures were effective. Key words:landslide;blasting;deformation;monitoring 1工程概况 约16°,总体呈前缓后陡.据地面调查,滑体主要由 某高速长滩隧道属于中隧道,左线945m 黏土夹碎石组成,为一大型浅层土质混合式滑坡. (ZK32680—ZK33625)、右线930m(K32 根据万州区滑坡历史监测数据可以看出,碾盆梁滑 690一K33620).隧址区处于方斗山冲断背斜北 坡处于蠕变状态,施工期间应定点加强监测滑坡变 西翼,为单斜构造,岩层产状10°∠23~27°,产状较 化情况. 稳定,未见次级褶曲和断层,构造简单.洞身地面 2滑坡体与隧道的关系 山体稳定,区域地质整体稳定性较好.穿越地层主 据设计初勘成果和地质调查,长滩隧道路线走 要为三叠系上统须家河组,围岩岩性主要为砂岩, 廊区在K33100—K33400洞身段分布一处滑坡 夹少量薄层状页岩.最大埋深左线176.32m 右线 体,当地国土部门定名为“碾盆梁滑坡”,如图1所 178.25m.根据资料,隧址区无高地应力存在.无 示.碾盆梁滑坡体总体平面形态呈圈椅状,滑体前 采空区及岩溶现象,不易发生突水突泥.长滩隧道 缘为G318国道线,近年在雨季未出现蠕滑变形. 面临的主要不良地质问题是ZK32900左侧约 路线走廊从滑体的后缘地段通过,若滑坡失稳将会 50m有一大型滑坡—碾盆梁滑坡.碾盆梁滑坡位 使由南...