v13重锤夯实(强夯法)施工工艺.doc
《v13重锤夯实(强夯法)施工工艺.doc》由会员分享,可在线阅读,更多相关《v13重锤夯实(强夯法)施工工艺.doc(10页珍藏版)》请在三一文库上搜索。
1、 wages in arrears. 2.5 organization a group of high quality excellent construction team, responsible for construction. Project optimization, choose in the main technicians from company employees. 2.6 in the course of construction, maintain close contacts with Labor departments, according to the proj
2、ect plan in full and on time, quality of labour provided. 2.7 the operator entry, admission to education and technology to give the low-down the project, make it clear the quality of projects and various operational requirements, and sign a labour agreement, defining their responsibilities and right
3、s. 2.8 project to formulate a detailed service assessment methods and approach evaluation in a timely manner, unsatisfactory services exit in a timely manner, notify the Labor Department added to reward the good services to ensure project quality and progress. 2.9 in the labor Primary materials, com
4、ponents dosage name unit number notes drainage project security plan materials cast iron manhole cover 161 on October 1-November 20 cast iron rainwater grate level of 420 October 1 November 20 reinforced 10 t 12.96 coarse clean sand M3 155 September 11-October 1 November 20 November 20 m3 453 NET sa
5、nd gravel 40mm M3 113 on September 11 in the September 11 to December 20-November 2 0 days thousand machine brick block 541 P.C32.5 t 185.4 on September 8, 2010-January 30, 2011 October 1 November 20 cement reinforced concrete pipes 1200 m 925 on September 11 to November 20 reinforced concrete pipe
6、of 1800 1500 m 325 on September 11 to November 20 reinforced concrete pipe reinforced concrete pipes m 107 on September 11 to November 20 2000 m 96 on September 11 to November 20 bars Concrete pipe diameter of 2200 m 46 on September 11 to November 20 HDPE pipe DN400 m 540 on September 11 to November
7、 20 DN300 m 1399 on September 11 to November 20 HDPE HDPE pipe tube DN600 m 950 on September 11 to November 20 DN800 m 1692 on September 11 to November 20 HDPE HDPE pipe tube DN1000 m 290 on September 11 to November 20 pumped commercial concrete impermeability P6C25 (corrosion-resistant) M3 279 Sept
8、ember 11-November 20, pump-delivery commodity concrete C15 M3 1797 September 11-November 20, pump-delivery commodity concrete C25 (corrosion-resistant) M3 80 on September 11 to November 20 road projects in coarse clean sand M3 688 November 1 December 30 clean sand M3 105 5-80mm M3 16206 November 2 A
9、ugust-December 17th of November 1 to December 30 gravel, gravel 40m M M3 5799 November 2 August-December 17th, rock fragment 15mm M3 8139 December 15 November 26 25-40mm M3 17876 December 15 November 26 gravel 60mm cement P.C32.5 t m3 18902 December 15 November 26 55.48 on September 8, 2010-January
10、30, 2011 Xiangfu East Road, Changsha, Wuhan-Guangzhou high-speed railway station construction project, Yuhua district, as well as the municipal level of the networks main road, construction of society and the concern of the public, according to the characteristics of the project,We will continue to
11、improve the companys internal control system, and steady improvement in ability to manage and control, optimize business processes, to ensure smooth processes, responsibilities in place; to further strengthen internal controls, play a control post independent oversight role of evaluation complying w
12、ith third-party responsibility; to actively make use of internal audit tools detect potential management, streamline, standardize related transactions, strengthening operations in accordance with law. Deepening the information management to ensure full communication zero resistance. To constantly pe
13、rfect ERP, and BFS+, and PI, and MIS, and SCM, information system based construction, full integration information system, achieved information resources shared; to expand Portal system application of breadth and depth, play information system on enterprise of Assistant role; to perfect daily run ma
14、intenance operation of records, promote problem reasons analysis and system handover; to strengthening BFS+, and ERP, and SCM, technology application of training, improve employees application information system of capacity and level. Humanistic care to ensure zero. To strengthening Humanities care,
15、 continues to foster company wind clear, and gas are, and heart Shun of culture atmosphere; strengthening love helped trapped, care difficult employees; carried out style activities, rich employees life; strengthening health and labour protection, organization career health medical, control career a
16、gainst; continues to implementation psychological warning prevention system, training employees health of character, and stable of mood and enterprising of attitude, created friendly fraternity of Humanities environment. To strengthen risk management, ensure that the business of zero risk. To streng
17、thened business plans management, will business business plans cover to all level, ensure the business can control in control; to close concern financial, and coal electric linkage, and energy-saving scheduling, national policy trends, strengthening track, active should; to implementation State-owne
18、d assets method, further specification business financial management; to perfect risk tube control system, achieved risk recognition, and measure, and assessment, and report, and control feedback of closed ring management, improve risk prevention capacity. To further standardize trading, and strive
19、to achieve according to law, standardize and fair. Innovation of performance management, to ensure that potential employees zero fly. To strengthen performance management, process control, enhance employee evaluation and levels of effective communication to improve performance management. To further
20、 quantify and refine employee standards . Work, full play party, and branch, and members in five type Enterprise construction in the of core role, and fighting fortress role and pioneer model role; to continues to strengthening four good leadership construction, full play levels cadres in enterprise
21、 development in the重锤夯实(强夯法)施工工艺 重锤夯实(强夯)法又称动力固结法,是法国梅那尔公司于60年代后期创造的一种地基加固方法。它是在重锤夯实基础上发展起来的动力加固地基的新方法。70年代后期传入我国,经过近20年在全国各地的推广应用,证明其加固效果十分显著。1工艺特点 强夯法以其质量可靠、进度快、节约材料、造价低、经济效益显著等特点,已广泛应用于工业与民用建筑、公路与铁路路基、机场道路及码头仓库等工程的地基加固,强夯能级从1000kNm发展到8000kNm,成为国内处理地基的一种较好的实用方法。2适用范围目前,国内外处理地基的手段很多,其中强夯的适用范围最广,适用的
22、土质有:各种素填土、杂填土(建筑垃圾、工业废料)、粘土、黄土、湿陷性黄土等。采用强夯处理地基,需要考虑其振动对附近建筑物的影响,必要时应采取隔振、防振措施,在城市施工时还要考虑对噪音的控制问题。3工艺原理及设计要求强夯法加固地基虽已经历了几十年,实践证明是一种较好的地基处理方法,但是还没有一套成熟的理论和完整的设计计算方法。根据国内外近十年来的研究成果,土的强夯作用机理一般可归结为:(1)非饱和类土。以直观的加密使土体强度增加为主,如黄土和一般的粘性土,最典型的是湿陷性黄土,通过夯击使土颗粒重新排列成致密结构体,减弱甚至消除其湿陷性。(2)粉土和粉细砂类土。夯击作用使土体加密和预液化,从而提高
23、地基土的承载力和抗液化能力。(3)饱和土。强夯使空隙水压力瞬时升高,随着水压力的消散,土中自由水和部分弱结合水排出,土体变得紧密,随着时间的延续,触变后的土体结构得以恢复,使地基土得到加固,对于饱和淤泥质土和粘性土,可通过加填料(石块、钢渣等)夯击,增加土体骨架和排水通道,这一措施无疑扩展了强夯处理地基土的适用范围。3.1加固原理强夯法是应用功能转换的原理达到加固地基的目的。具体地说,它是利用起重设备将几十吨(一般840t)重锤,从几十米(一般640m)高处自由落下,给土以强烈的冲击和振动。地基土在强大的冲击能的作用下,土体强制压缩或振密;土体局部液化,夯点周围产生裂隙,形成良好的排水通道,孔
24、隙水溢出,经时效压密,使土体重新固结,从而提高了土的承载力,降低其压缩性。强夯法是利用强大的夯击能给地基一冲击力,并在地基中产生冲击波,在冲击力作用下,夯锤对上部土体进行冲切,士体结构破坏,形成夯坑,并对周围士进行动力挤压。目前,强夯法加固地基有三种不同的加固机理:动力密实、动力固结和动力置换,它取决于地基土的类别和强夯施工工艺。3.1.1 动力密实采用强夯加固多孔隙、粗颗粒、非饱和土是基于动力密实的机理,即用冲击型动力荷载,使土体中的孔隙减小,土体变得密实,从而提高地基土强度。非饱和土的夯实过程,就是土中的气相(空气)被挤出的过程,其夯实变形主要是由于土颗粒的相对位移引起。实际工程表明,在冲
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- v13 重锤 夯实 强夯法 施工工艺
链接地址:https://www.31doc.com/p-2053712.html