旋喷桩施工技术在工程中的应用

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1、学位论文旋喷桩施工技术在工程中的应用申请人:康长彗学科(专业):土木工程指导教师:赵楠教授2011年01月24 24.1 reagent potassium iodide (500g/L) + thiourea (50g/L) (1+1). 24.2 the sodium hydroxide solution (400g/L) and the sodium hydroxide solution (100g/L). 24.3 sulfuric acid (1+1). 24.4 absorbent 24.4.1 the silver nitrate solution (8g/L): 4.07g g

2、 of silver nitrate in 500mL beaker, add a little water dissolves 30mL nitric acid, add water to 500mL and stored in a Brown bottle. 24.4.2 polyvinyl alcohol solutions (4g/L): weighing 0.4g polyvinyl alcohol (degree of polymerization of 15001800) in a small beaker, add 100mL of water, heated in boili

3、ng water bath and stir until dissolved, thermal 10min, out cold. 24.4.3 absorbent: 17.4. a 1 and 17.4.2, add one volume of ethanol (95%), mix as the absorbent. Use match. 24.5 potassium borohydride: potassium borohydride and sodium chloride mixed in 1:4 quality than ground, after you mix in the tabl

4、et computer made 10MM, 4mm tablets, each piece is 0.5G. Avoid pressure in wet weather. 24.6 lead acetate (100g/L) cotton: absorbent foam in lead acetate solution (100g/L), squeeze excess solution after a few minutes, spread out cotton, 80 after drying storage in the wide-mouth glass bottles. 24.7 ci

5、tric acid (1.0mol/L)-ammonium citrate (1.0mol/L): weighing 192g ammonium citrate citric acid, 243g, diluted with water dissolves to 1000mL. 24.8 arsenic standard reserves liquid: said learn 105 dry 1h and reset dry device in the cooling to at room temperature of three chloride arsenic (As2O3) 0.1320

6、g Yu 100mL beaker in the, joined 10mL hydrogen oxidation sodium solution (2.5mol/L), stay dissolved Hou joined 5mL perchlorate, and 5mL sulfuric acid, and reset electric Board Shang heating to take white, cooling Hou, into1网络教育学院毕 业 设 计 (论 文) 任 务 书专业班级土木工程层次 专升本 姓名康长彗学号09017490013001一、毕业设计(论文)题目旋喷桩施

7、工技术在工程中的应用二、毕业设计(论文)工作自 年 月 日起至 年 月 日止三、毕业设计(论文)基本要求: 指导教师: 网络教育学院毕业设计(论文)考核评议书指导教师评语:建议成绩: 指导教师签名: 年 月 日答辩小组意见:负责人签名 年 月 日答辩小组成员 毕业设计(论文)答辩委员会意见: 负责人签名: 年 月 日ABSTRACT论文题目:旋喷桩施工技术在工程中的应用学科(专业):土木工程申请人:康长彗指导教师:赵楠教授摘 要桩是伴随着建筑工程的产生而产生,伴随着建筑工程的发展而发展。柔性桩主要是桩土共同作用组成复合地基以达到传递上部建筑物荷载的目的。高压喷射灌浆技术是通过在地层中的钻孔内下

8、入喷射管,用高速射流(水、浆液或空气)直接冲击、切割、破坏、剥蚀原地基材料,受到破坏、扰动后的土石料与同时灌注的水泥浆或其它浆液发生充分的掺搅混合、充填挤压、移动包裹,至凝结硬化,从而构成坚固的凝结体,成为结构较密实、强度较高、有足够防渗性能的构筑物,以满足工程需要的一种技术措施。同时,由于用喷射流形成的加固体形状灵活,适合多种加固要求,因此这种方法开发成功后,也就是自20世纪70年代中期以后,在世界范围内得到很快的传播。20世纪70年代,该法在我国的基础托换工程、隧道工程、水利工程、港口工程中均有应用。我国也是世界上喷射注浆法应用量最大的国家之一。旋喷桩加固地基的功能:强度特性的改变,即提高

9、抗剪强度和抗压强度;降低土体压缩性;改善透水性;改善动力特性。喷射注浆法施工分为单管法、二重管法、三重管法。论文类型:应用研究关 键 词:加固地基的作用;旋喷桩设计;旋喷桩施工;工程实例Title:Churning Pile in EngineeringSpeciality:Civil EngineeringApplicant:Kang long comaSupervisor:Prof. Zhao NanABSTRACTPile construction is accompanied by the generation and production, along with the develo

10、pment and construction development. Flexible pile is mainly composed of composite pile foundation-soil interaction in order to achieve the purpose of passing the upper part of the building load. Jet grouting technology in the formation of holes through the inner tube down into the jet, high-speed je

11、t (water, slurry or air) direct impact, cutting, destruction, erosion of the original foundation material, damage, disturbance of soil, stone and at the same time infusion of grout or other grout mixing occurs sufficiently mixed with stirring, filling extruded, mobile package, to condensation sclero

12、sis, which constitutes a solid condensed body, a structure is more dense, high strength, adequate performance of the structures impervious to meet the engineering needs of a technical measure. Also, because the jet stream with the formation of additional solid shape flexibility for a variety of reinforcement requirements, successful development of this approach, that is, since the mid-1970s, the world has been quickly spread. 1970s, the law underpinning the countrys engineering

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