锚杆

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。

The common suspension roof support without pre-stressing based on the constant stress field is no longer safe for such engineering. Recently, the popular and receptible supporting form is high-strength pre-stressed bolting with resinic anchoring agent for the deep underground engineering.

基于浅部常应力场的普通非预应力锚杆支护已不能满足此类工程的安全性要求，以树脂药卷作锚固剂的高强、超高强预应力锚杆支护应属于目前最能符合此类深部地下工程的支护形式。

But there are more and more great engineering accidents because of ruinate pre-stress anchor rods, so it is increasingly important and exigent to do distributed measuring and long-term working monitoring for pre-stress anchor rods.

在桥梁、隧道、边坡、吊车梁等结构工程领域中，使用日益广泛。但因预应力锚杆、锚索失事带来的重大工程事故也随之增加，预应力锚索、锚杆应力的分布测量及长期运行监测问题，已日益重要和迫切。

Bolts and / or shotcrete may be added to an SWEDGEmodel, to evaluate the effect of support on wedge tability.In this tutorial, we will first add bolts to a wedge model,and then shotcrete, and discuss how each is implemented in the SWEDGE analysis.Let's start with a new file for the purposes

锚杆和喷砼可能在 SWEDGE 模型中加入，以分析支护对块体稳定影响，这里，我们首先在模型中添加锚杆，然后是喷砼，讨论各自在模型分析中的作用，我们下来开始一个新文件以实现这一目标。

Little tremie grouting,systemic rock bolt and horizontal prestressed rock bolt are the most effective reinforcing technique s which have been validated in practice.

而小导管注浆、系统锚杆及水平贯通预应力锚杆是应用最为广泛的3种中夹岩加固技术，并在实践工程中得到有效验证。

Bolt capacities and orientations are added vectorially,and are included in the Safety Factor calculation as a single, equivalent force passing through the centroid of the wedge.

锚杆锚固容许力作为通过型心的单一等效力反映在安全系数中，主动和被动的锚杆模型均能被模拟。

A high-strength steel pipe rockbolt has an expansive rockbolt main body prepared by processing a high-strength steel sheet of 1.8-2.3 mm in thickness with tensile strength of 490-640 N/mm 2 and elongation of 20% or more to a welded pipe and roll-forming the welded pipe to a shaped pipe having one or more concavities extending along an axial direction.

高强度钢管锚杆具有可膨胀锚杆主体，该主体通过下列步骤制成：将抗拉强度为490～640N/mm 2 ，伸长率为20％或更大，厚1.8～2.3mm的高强度钢板加工成焊接管，再将该焊接管滚轧成型成具有一个或多个沿轴向延伸的凹部的异形管。

Made a systematic analysis to the simulation results and educe these conclusions: The reinforcement action of pre-tensioned bolts supporting joints rock mass mainly externalizes in creasing the interlayer-pressure and roadway roof pressure.

预应力锚杆对层状顶板的加固机理是增加层间正压力，从而降低节理面之间的滑动位移，控制顶板离层量，降低巷道位移。预应力锚杆支护，是提高煤巷节理顶板稳定性的有效方法。

The obtained results are shown that the anchor bolts supports in the fissured rock mass is good to raise the safety of the whole structure of grottoes.

结果表明，锚杆的加固作用是明显的，在有裂隙的部位打入锚杆对石窟整体结构的安全性是有益处的。

Based on the theory of hanging on laneway roof with roof bolt and taking the bolt as base point, this new preceding support can work in the free space on the laneway roof, allowing other equipments such as the entry-driving machine work at the same time, thus improving the utilizing efficiency of the laneway. On the cirques track of bolts, its three groups of claw, which are driven by hydraulic force, work as fulcrums to one another to push the support move forward.

基于顶板锚杆悬挂理论，以锚杆为基点，采用自制圆形梁为执道，以液压力驱动3组机爪互为支点实现超前支架在巷道顶部空间的迈步前移，采用具有顶板适应性的变运动方向平行四边形机构作为超前支护机构，来实现超前支架的支护作业。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。