This kind of adglutinate mixed with u expansion admixture can grip anchor bolts tightly even underwater , as can be seen from the pull - out type tests for anchor bolts when the mortar age is over 10 days . ( 2 ) the author lays the supporting piles as a arched shape 将掺加了u型微膨胀剂的砂将作为锚杆水下胶结物，由锚杆龄期10天的抗拔试验结果可以看出，这种胶结物的握裹效果很好。
In this paper , based on the model test of inserted foundation , the uplift mechanism , of inserted foundation , which has been applied widely in transmission tower , is studied and discussed deeply . and then , some useful results are obtained 论文通过插入式基础的真型抗拔试验，对在送电线路中应用已是十分广泛的插入式基础抗拔机理进行了深入的研究和探讨，得出了一些有意义的结论。
Secondly , the basic principle of the model test is discussed . a pullout loading test equipment is designed , and then , a great deal of tests and data - gathering apparatuses are introduced , including the examination approaches and processes 2 、分析真型试验的试验原理，并设计出一套轴向抗拔加载试验装置，详细介绍了各种试验和数据采集仪器，以及基础进行真型抗拔试验的试验方法及步骤。
3 ) a study is carried out to understand the changing rule of ultimate load and stiffness with the different reinforcement ratio of anti - punching shear bar . the increasing speed of the ultimate load is slower than that of the reinforcement ratio is indicated 3 .对不同抗拔钢筋配筋率的钢筋混凝土承台-钢柱脚抗拔极限承载力和刚度变化规律进行了计算分析,发现了随着承台中抗拔钢筋配筋率的提高,其承载力提高的比例逐步减小的规律。
According to the engineering practise data , one method to calculating utmost single - pile bearing capacity is provided after simulating the uniform - section pile " side friction curve by power - function math models . analyse indicates that the method possesses good counting precision 并结合实测资料，在对等截面桩侧摩阻力曲线进行幂函数数学模型拟合的基础上提出了抗拔桩承载力计算的计算式，分析结果表明：本文提出的计算式具有很好的计算精度。
The principal contents are listed as following : firstly , the investigation state of inserted foundation is presented generally in the paper . the development of uplift bearing capacity theories is summarized , including the significance of the investigation about the anti - pulling mechanism 其主要内容包括以下几个方面： 1 、概述了插入式基础国内外研究现状、插入式基础抗拔力计算理论的发展以及存在的一些问题，论述了研究插入式基础抗拔机理工作的重要意义。
By the test of anchor cable pull - out intensity , research is carried on anchor capability , stiffness coefficient and prestress losses of anchor cable in reinforcing similar soil slopes . the mechanisms of reinforcing similar soil slopes by prestressed anchor cable sash ( beam ) are studied by the method of combination of field test , theory analysis and numerical simulation , as a result , the calculational pattern of internal force of anchor cable sash ( beam ) is put forward 本文通过大量野外调查，提出类土质边坡的概念，并分析了它不同于一般粘性土边坡的特性；通过锚索抗拔试验研究了类土质边坡的锚固力大小、锚索刚度系数和锚索预应力损失情况；通过现场试验、理论分析和数值计算相结合的方法，研究预应力锚索框架(地梁)加固类土质边坡的机理，提出预应力锚索框架(地梁)的内力计算模式。
Secondly , we recommend the practical experiment of cast - in - place piles , including field solid and liquid qualification , experiment purpose , experiment project , experiment equipment , experiment process and the notice of experiment . thirdly , we processed and analyzed experimental daters , studied the rule of strength transferring , and studied the rule of strength transferring of check resistance and side of peg rub resistance , contrasting with common re - draw peg . at last , we advance some unfathomed problem and prospect foreground of cast - in - place piles 本文首先对支盘桩的基本原理进行了阐述,对其施工过程以及成型过程进行了描述;然后对本次抗拔支盘桩现场试验进行了介绍,包括试验现场地质水文条件,试验目的、试验方案、试验设备以及试验过程,并对试验注意事项进行了归纳总结;分析了支盘装原位抗拔,研究了桩身轴力传递规律以及支盘阻力和桩侧摩阻力的荷载传递规律,并与普通抗拔桩进行了相关对比;最后,本文提出了本次试验尚未解决的一些问题,并对支盘桩的前景进行了展望。
In our country , no pull - out test of pressure - type anchor has ever been made in rock till now . in chapter 4 , consulting some pull - out tests of pressure - type anchor made by some civil researchers , contrast pull - out tests of pressure - type and tensile - type anchor in rock is designed in crag slope engineering in chongqing university 本文第四章在在参考国内一些单位已经进行的部分压力型锚杆抗拔试验的基础上，针对基于岩层的该类型试验还是空白的现状，结合重庆大学沿江危岩边坡治理工程设计了岩层中的压力型锚杆与传统拉力型锚杆抗拔力对比实验。
