锚固

The Zhanjiang Bay Bridge applies the Cable-girder anchorage with tensile anchor plate. Taking the fatigue test for the Zhanjiang Bay Bridge as an instance, the design of fatigue test and the fatigue reliability of the Cable-girder anchorage are studied in this thesis.

本文结合广东湛江海湾大桥锚拉板式索梁锚固结构的疲劳试验，着重讨论了索梁锚固结构的疲劳试验设计，同时分析了该桥索梁锚固结构的疲劳性能。

It studied the traditional pressure plate bolt anchoring system ,filling and drainage system,and the model of dam-side layout in the rubber dam.After repeated calculation,proposed the new pressure plate bolts anchoring component using pairs of anchor bars and connect the anchor plate and the platen with high-strength bolts,compared and analysis with the traditional pressure plate bolt anchoring system.

小 摘要：通过对现行橡胶坝设计中传统螺栓压板式锚固系统、充排水系统及坝端布置模式的研究，运用对比分析的方法，经过反复计算提出采用双锚筋及用高强螺栓连接锚固垫板和压板的新型螺栓压板式锚固构件，并与传统锚固型式进行对比分析。

YM-tensioned anchor client 1, YM strand tensioned anchor client system includes: YM15 anchor (for §15.2,§15.7mm strand) YM13 anchor (for §12.7,§12.9mm Steel Stranded) BM15, BM13-type flat anchor YMZ15, YMZ13-ring anchors (applied to the structure of cyclic stress) 2, YML Series connectors include: single as used prestressing tendon lengthening, usually with in pre-tensioned law; porous as the next long prestressed beam, normally used in the continuous beam. 3, P-type anchorage system for P-type anchorage system includes extrusion anchor (from compression set and a triangle composed of copper wire extrusion spring), anchor anchor plate, spiral reinforcement, constraint circle bellows.

YM张拉端锚具1、YM钢绞线张拉端锚固体系包括：YM15锚具（适用于ф15.2、ф15.7mm钢绞线）YM13锚具（适用于ф12.7、ф12.9mm钢绞线）BM15、BM13型扁锚YMZ15 、YMZ13 型环锚2、YML型系列连接器包括：单孔作为接长预应力筋用，通常用于先张法中；多孔作为接长预应力束，通常用于连续梁中。3、P型锚固体系P型锚固体系包括挤压锚具（由挤压套和三角形铜丝挤压簧组成）、锚固锚板、螺旋筋、约束圈、波纹管。

For the more, we study the anchor and hanging performances of expansion bolt in the masonry. The results indicate that this kind of masonry can satisfy the requirements of anchor or hanging force in decoration of building.

通过锚栓在砌体中的后锚固性能试验研究和墙体吊挂力试验研究，表明砌体具有一定的锚固抗拔性能和抗弯剪荷载能力，基本能够满足后装修较小锚固力及吊挂力要求。

A number of significant conclusions are proposed. For the first time,double arciform strain of the soil nailing is observed in the miscellaneous fill. It is considered as the result that there are two potential slide planes in the miscellaneous fill. The critical anchorage length is analyzed and determined for the first,which is 9 m in this experiment. T...

首次测得并分析了杂填土中土钉的双弓形应变分布形态，指出这是填土边坡中存在2个或以上潜在滑动面的结果；首次测得并分析了土钉临界锚固长度，指出在本试验条件下，其长度约为9 m，并认为临界锚固长度是应变峰值点、零值点和破坏点同时发生转移而形成，锚固类结构均具有此特点。

But in many reinforcement projects, some unfavourable geological are encountered frequently, such as colluvial soil, residual soil, slope wash, etc., which result in collapse of borehole and clip of bore rod during drilling of borehole that will bring considerable difficulties to construction and many incipient faults for construction quality.

但是，锚固工程常遇到各类不良地层（例如塌积、残积、坡积和崩积层等碎石土地层），在锚固施工的钻孔中由于严重的塌孔、卡钻，给施工带来很大困难，同时也给锚固工程质量带来隐患。

Field-tests show: grouting bolt exists the question of effective anchorage length; shear stress distribution is disuniform and concentrated in the front 1/3 of the fixed anchoring part.

在现场对普通拉力型锚杆进行了试验，试验表明注浆锚杆存在有效锚固长度问题，沿锚固段全长锚杆与浆体间剪应力分布极不均匀，主要集中在锚固段的前1／3。

The result indicates that three groups of concrete beams strengthened by anchor-bolted steel plate can be loaded as far as they were destroyed; compared with unstrengthened beams ,these beams strengthened by steel plate using adhesive or anchor all can achieve a seventy percent higher loading capacity and thirty percent higher stiffness. On the condition that with the same steel plate ,concrete beams strengthened by bolting steel plate can work as good as those beams strengthened by using adhesive.

试验结果表明：三种锚固布置方式加固梁都能保证钢板与混凝土联合工作直至梁破坏；与未加固梁比较，锚固钢板加固梁和外粘钢板加固梁一样，都能有效提高梁的承载力和刚度，其中承载力提高幅度约为70%；刚度提高约为30%，这说明在钢板量相同的情况下，锚固钢板加固梁能够达到与粘结加固基本相同的加固效果。

Low strain dynamic response theory is the basis of method in stress wave testing of anchorage system, which can be used to explain the dynamic reaction between anchor bar and surround rock, the mechanics of anchor bar stress wave testing.

锚杆—围岩结构系统的低应变动力响应理论是锚杆锚固系统应力波测试方法的理论基础，开展这方面的研究对于弄清锚固系统动测机理以及建立锚固体系损伤诊断和锚固质量评价具有十分重要的意义。

According to the spot experiment result of bolt anchor-hold in the condition of draining water in the roof on haulage roadway, 11201 coalface, Chengjiao coalmine, the test facility was designed independently and the influence of the anchor-hold of the resin bolt by the draining water in the drill hole was studied.

结合城郊煤矿11201工作面运输巷顶板淋水情况下锚杆锚固力现场测试结果，自行设计了实验装置，研究了钻孔淋水对树脂锚杆锚固力的影响。在现场测试中，当钻孔的淋水量小于128mL/min时，树脂锚杆的锚固力保持不变；当淋水量大于583mL/min时，树脂锚杆的锚固力比无淋水时的锚固力下降35%以上。沿巷道轴向布置卸水孔，采用集中排放，同时加大锚杆支护的密度可以改善顶板淋水时锚杆支护的效果

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。