阐述了在松散渣铁层及河岸漂卵石层中快速成孔,形成较大直径的旋喷注浆桩的过程。
The paper describes the building-up process of a large size rotary jet slip-casting pile by quick pore-forming in bulky iron slag layer and in river banks floated pebble bed.
结果表明,桩周附近的侧阻与端阻有了较大幅度的提高,而且注浆桩将具有强劲的后继端阻和侧阻。
The results indicate that the side and end resistance around the pile increase greatly, and the poured pile has the powerful continuous end-friction and bottom-friction.
通过室内模型试验及现场试验,对碎石注浆桩这一新型桩基技术的承载性状、工作机理进行了试验研究。
The bearing behaviors and working mechanics of crushed stone grouting piles, a new technique, are studied by model tests and field tests.
并阐述了实现合理的桩端注浆条件,桩端注浆提高单桩承载力的机理以及注浆加固效果分析。
The paper describes the conditions of realizing reasonable pile end grouting; pile end grouting can improve mechanics of single pile bearing capacity and impact analysis of grouting reinforcement.
本文通过工程实例阐述了桩底注浆的工作原理和工艺流程,指出了桩底注浆技术的发展前景。
Here the function mechanism and the technology process of grouting after pile driving technology are explained by engineering examples and the development prospect is pointed out.
本文介绍锚拉桩、喷锚网、钢筋混凝土格构、注浆、加筋土等技术在三峡库区滑坡等地质灾害防治与利用的初步经验。
The using of technique of pre-stressed anchoring pile, shot anchoring net, concrete frame, grouting and reinforced soil in the prevention and utilization of landslide are introduced in this paper.
本文介绍了水泥搅拌桩重力式挡墙与墙后注浆卸荷平台组合支护的计算方法,及其在基坑工程中的应用。
The paper introduces the calculation method of a mixed retaining wall using cement mixing pile and unloading plat by grouting in back wall, and its application in excavation is analysised.
同时对浅埋、富水和地质顺层地段分别采用管棚注浆和锚固桩加固的方法进行了处理。
Meanwhile, the pipe-roof grouting and pile anchoring method have been adopted also to strengthen the bedding strata of the large span tunnel.
扩底后注浆灌注桩是在普通灌注桩基础上通过扩底和后注浆两种施工工艺结合所衍生出来的一种新桩型。
The pedestal post-injected caisson pile is a new type of pile that is derived from the two construction technologies of pedestal pile and post-injecting based on the common caisson pile.
桩端后注浆灌注桩单桩合理注浆量与承载力的计算成为工程界关注的主要问题之一,尚无设计规程可循。
The most interested problems of the design of post base-grouted bored pile are the estimate of the quantity of grouting and the bearing capacity.
介绍了抗拔桩后注浆技术的基本原理、实施方法、效果分析及承载力计算模式。
The mechanism, method, effect and capacity mode of tensile pile with post grouting are introduced.
介绍位于地震高烈度区的宿迁建设大厦工程采用高压注浆技术对钻孔灌注桩进行加固的概况。
Based on Suqian Construction Building which locates in high intensity earthquake area, the paper presents the consolidation technology for bored pile.
结合实际工程,对嵌入卵石层钻孔灌注桩后压浆设计、施工中后压浆方法的选择、注浆量的确定、后压浆桩的承载力计算、后压浆在超长桩中的应用等进行了研究。
Based on actual projects, it carries out research on the choice of post-grouting method, grouting quantity and bearing capacity of bored pile, and the application of post-grouting in super-long pile.
结合后注浆技术在刚性桩复合地基工程中的应用,探讨后注浆技术提高刚性短桩承载力的作用机理。
Based on the application of post grouting technique in the rigid pile composite foundation, the authors investigated the mechanism of the capacity increase of short rigid pile by this technique.
通过对浮桩进行注浆和复打两种处理方法的对比研究表明,在软土地基中处理管桩浮桩应优先采用复打措施。
Based on the contrast of grouting and re-beating of floating piles, the latter should be adopted in soft soil foundation.
通过工程实例,介绍利用旋喷注浆技术加固灌注桩挖孔内流砂层的设计、施工及效果检查。
The design, construction and result inspection were introduced through a example of project to reinforce sand-drift layer in excavated holes of grouting piles by rotating jet grouting technology.
为此,对地表塌陷进行了综合治理,其中采用了静压注浆、在人工河渠施工旋喷桩的措施,有效地控制了地表塌陷。
Therefore, the surface subsidence was controlled comprehensively through measures like static pressure grouting and building shotcrete piles in the artificial river channel.
该工程基础原设计采用人工挖孔灌注桩,根据施工中出现的实际情况,又采用桩端压力注浆技术,取得了良好的效果。
According to the condition in the construction, the technique of pressure grouting of pile tip was adopted and obtained well effect.
通过对工程实例的剖析,介绍桩底后注浆和扩大承台(梁)法等桩基事故处理方法和原理,作为工程实践经验的总结。
Through the analysis of pile bottom grouting and beam expanding accident methods and principles, the engineering practical examples are summarized.
通过认真研究,最终确定了拉锚式排桩的基坑支护方案及高喷注浆帷幕的基坑防渗方案。
After careful studies and discussions, a design program has been put forward, that is to shore up the pit by anchored line-up piles and to cut off the seepage by high-pressure jet-grouting curtain.
通过使用高压注浆技术,对这些桩进行了修补和加固补强。
Highpressure grouting technique is used in treatment of these piles.
主要技术特征是:预先配置浆液,静压沉桩和注浆工艺同时操作。
The main technical features are: the slurry are configured at first, then static piles and grouting process are executed simultaneously.
在压桩过程中同时在桩侧注入浆液,桩尖达到设计深度后,浆液随着桩的沉入在桩端形成注浆扩大头。
In the time of pressing the pile, the grout are inject into the soil. When the pile tip reaches the design depth, then continue to inject grout into the pile, so that the pile head expand.
注浆与钢花管微型桩组合结构是加固滑坡的一种新型支挡措施。
Grouting Steel Micro Pile reinforced composite structures is a new type of landslide retaining measures.
为了消除桩底沉渣和桩侧泥膜的影响,对灌注桩进行桩端注浆、桩侧注浆或桩端桩侧联合注浆是一种较好的方法。
In order to eliminate the bad influence caused by the mud in the end and side of piles, some kinds of methods, such as end grouting, side grouting and end-side association grouting, could be used.
本文介绍了湖南国际会展中心采用综合注浆法加固人工挖孔桩的工程实例,可供参考。
Case history of Hunan International Conference and Exhibition Center in improving man-dig piles by complex grouting method is introduced in this paper. It can provide reference for engineers.
在土体性质相同且注浆压力恒定不变时,灌注桩桩端孔水平向和竖向位移随桩长的增加而减小。
The Vertical and horizontal displacement of ending hole are both decreased with the increase of pile length when the soil and grouting pressure is constant.
注浆微型桩加固土质边坡失效时,整体上滑动面呈圆弧型,并从坡脚的平台中部剪出。
The slide is circular slip and breach form the flat middle of base of slope when the reinforcement disables.
通过试验分别研究了注浆对桩侧摩阻力和桩端阻力的影响及荷载分担情况,得到了一些有益结论。
The influence of the grouting on the frictional resistance and tip resistance and the sharing condition of load are studied. Some significant conclusions are drown.
采用灌注桩后注浆技术,既可确保桩基施工质量,又能提高单桩承载力,极大地发挥桩基承载的潜力。
The application of post-grouting technique for cast-in-situ pile could not only ensure the construction quality, but also raise the bearing capacity of each pile.
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