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The loosed rockmass of different scope and causes some times developed very deeply under the ground in somewhere, for example, there is seriously fracture and opening cracks in the rockmass where it is 340m away from the adit entrance in a dam site, which give rise to a difficulties for selecting an important project.

松动岩体实际上是各种成因变形岩体的特殊形式,有其特殊的一面,它的渗透性、变形性和其它力学行为都十分复杂,而成因不同的松动岩体由于其规模和发育深度有时很大,如有些坝址的岩体在340m硐深的部位还严重开裂,给重大工程的选址决策带来困难。

Took Chongqing Gong-he tunnel as an engineering example and studied the failure mechanism of surrounding rock and the correlation with bolt support system by using the methods of theoretical analysis, modeling test, numerical simulation and in situ test, some helpful conclusions were arrived as follows.Firstly, a new failure criterion for transversely isotropic rock mass was proposed with consideration of bedding plane orientation and major principal stress, and the corresponding algorithm, arrived through VC++6.0, can be easily embedded into the software FLAC3D for the geotechnical calculation.

论文在国家自然科学基金专项基金创新群体基金项目(No.50621403)以及国家自然科学基金重点项目"隧道与地下空间工程结构物的稳定性与可靠性(No.50334060)"的资助下,以共和隧道为示范工程,运用理论分析、物理模型实验、数值模拟和现场测试等手段,对共和隧道大埋深段层状岩体的围岩变形破坏机理、锚杆支护力学效应及围岩-支护结构的变形特征等内容进行了研究,其主要研究成果有:①在总结和探讨国内外学者提出的层状岩体经验型连续介质破坏准则基础上,结合层状岩体力学特性,考虑层面方向和最大主应力方向两个影响因素,提出了共和隧道层状岩体横观各向同性破坏准则;采用汇编语言VC++6.0实现了横观各向同性弹塑性本构关系的算法,并嵌入FLAC3D有限差分数值分析软件接口中实现数值运算。

The main technology parameters that may affect manufacturing the unbroken long metal fiber, including tool normal rake, tool cutting edge inclination angle, chip pulling force, and chip pulling angle, etc, are discussed. The cross section shape of long metal fiber manufactured by microsaw-chippulling combined cutting is hook-like.

通过对自旋转车刀加工金属长纤维的前期试验研究表明,尽量减小切削变形是切削制造金属长纤维的关键:通过对微锯-拉屑复合切削的切削机理研究,得知微锯-拉屑复合切削有很小的切削变形。

The compressing from the completed collision of Indian plate and Eurasia plate made TienShan mountain, KunLun mountain and Pamir rose rapidly and complicatedly, including fault rising and strike slip lineament mountain building.

受印度板块与欧亚大陆碰撞挤压的影响,中生代期间被夷平的古天山、西昆仑-帕米尔快速隆升,并发生复杂的变形,变形包括冲断隆升和走滑造山,天山的地壳缩短量具有从中部向东西两侧减小的特点。

It was shown that there was obvious changes in the RBC's deformation and orientation in the senescent models.

结果:对新生红细胞的压积、变形指数、取向指数等指标的连续60多天的监测,发现红细胞在整个衰老过程中的变形指数和取向指数有明显改变。

In the theoretical investigation, we calculate the static load-deflection curves and the longitudinal forces transmission for a specified angle difference between the fixed clamp and the moving clamp. To study the stability of the equilibrium configuration, we superpose the equilibrium configuration with a small perturbation and calculate the natural frequencies of the deformed elastica. In addition, the condition where two ends with identical angles are introduced will be researched.

在理论分析方面,针对几种不同的固定夹持端与滑动夹持端之夹角,计算出静态的受力-变形曲线以及轴向力传递关系;为了探讨平衡位置的稳定性,在平衡位置加上微小的简谐扰动,然后计算出弹性板条受力变形后的自然频率;此外,对於两端角度相同的情形,将有更深入的研究。

The fieldwork of GPS location in high-rise building construction includes the choice of GPS mark, the choice of operation mode, and the remanding of survey etc.

日照变形等的测量;动态定位模式用于GPS建筑物动态变形监测等的测量?高层及超高层建筑施工GPS定位观测工作依据的基本技术指标有卫星高度角?

The effect of sizing press conditions and the deformation at slab head end were also investigated.

2首次揭示了板坯在压力机调宽变形中,由于侧压过程的不连续造成的狗骨形沿工件长度方向不均匀分布的现象,这种现象表明,在板坯中段通常人们所认为的稳定变形阶段仍有厚度尺寸波动现象,并将对宽度精度产生影响。

For a polymeric enclosed unit having an integral tab , the tab and enclosure do not distort at temperatures to which the material may be subjected under conditions of normal and abnormal use as determined by the mold stress relief distortion test in the standard for Polymeric Materials - Use in Electrical

&2 有整体安装片的塑胶外壳的的变压器,用\&模压力缓解变形测试'决定的正常或反常使用条件下材料所能承受温度,安装片和外壳都不会变形。

Based on the analysis of flexural displacement of the circular-shaped cover with a concentric ring or with a concentric ring and topsy-turvy cone, this paper describes the calculating method of displacement and stress in the cricular-shaped cover of DSHE, and the RPDP program for the strength and rigi...

本文通过对带圆环筋平板和有倒锥加强的加筋平板的弯曲变形分析,导出了DSHE大平盖变形和应力的理论计算方法,并在此基础上编制完成了用于DSHE大平盖强度和刚度设计的RPDP程序。第一次使按给定操作参数进行DSHE大平盖设计成为可能。

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推荐网络例句

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意,使我记忆犹新,那天你随着我的亲友从家里送我上轮船,搬运工迟迟不来,你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神,在那里,他以身披红斗篷,留着飘逸的白胡须,戴着主教法冠而闻名。

Long periods of seeming invincibility. Though some industries or lines of business exhibit characteristics that endow leaders with virtually insurmountable advantages, and that tend to establish Survival of the Fattest as almost a natural law, most do not. Thus, for every Inevitable, there are dozens of Impostors, companies now riding high but vulnerable to competitive attacks. Considering what it takes to be an Inevitable, Charlie and I recognize that we will never be able to come up with a Nifty Fifty or even a Twinkling Twenty. To the Inevitables in our portfolio, therefore, we add a few "Highly Probables."

在所属的产业都被赋予其无可取代的优势地位,大者恒存的自然定律似乎牢不可破,但实际结果却不然,也因此在找到真正的真命天子之前,旁边可能还有好几打假冒者,这些公司虽然曾经红极一时,但却完全经不起竞争的考验,换个角度来看,既然能够被称为永恒的持股,查理跟我早就有心理准备,其数量绝对不可能超过五十家或甚至是不到二十家,所以就我们的投资组合来说,除了几家真正够格的公司之外,还有另外几家则是属于极有可能的潜在候选人。