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底拱
相关语句
  bottom arch
     withthe increase of lateral pressure modulus, the principal stress at hance, the tress attopmost arch, bottom arch and principal stress at lateral arch decreases, with theincrease of the depth of tunnel, the stress of surrounding rock also increases ,andthe poorer the quality of surrounding rock is, the little its principle stress is.
     随着侧压力系数的增大,顶、底拱处的各应力值增大,拱腰处的主应力减小,剪应力增大,侧拱处的各主应力减小,同一侧压力系数的条件下围岩质量越差,各应力值也越小; 随着洞室埋深的增加,围岩压力也增大,围岩质量越差,其应力值也减小。
短句来源
     Causes of Formation & Decreasing Measures of Air Bubbles on Concrete Surface of Bottom Arch of Circular Tunnel
     圆形洞室底拱混凝土表面气泡的成因及消减措施
短句来源
     The whole analysis of the surrounding rock and support shows that the bottom arch of liner and the feet of liner have serious stress concentration, so do the sidewalls and the foot of a wall of the surrounding rock.
     支护和岩体的整体分析表明,衬砌底拱及拱脚处应力集中严重,隧道岩体侧墙及墙角围岩的应力集中也较大。
短句来源
     It is pointed that under the action of tectonic forces, stresses are concen-trated along the bottom and roof Hence a concrete bottom arch or slab is urgent-ly needed.
     必须指出,在地质构造力的作用下巷道的顶板和底板应力集中,极需用底拱或板加固。
短句来源
     But the traditional bottom arch and beam technology are with high cost and difficult construction and bad protective result.
     但采用传统的底拱、底梁技术处理巷道底鼓成本高,而且施工难度大,支护效果差。
短句来源
  “底拱”译为未确定词的双语例句
     The fabricating technology of Ar ion beam etching for largearea microlens array of 128×128 in ZrO2, InP, Si, and SiO2 substrates, was discussed in this paper.
     在ZrO2、InP、Si及SiO2即融凝石英衬底上用氩离子束刻蚀制作面阵矩底拱面状微透镜阵列,给出了氩离子束在不同的入射角度下刻蚀器件的速率与离子束能量之间的关系。
短句来源
     Scanning electron microscope (SEM) show that microlens are gently arc square based, and the surface stylus measurement show that by use of the new method, object F number and image F′ number of MLA are promoted to 49.26 and 53.52 respectively, point spread functions of MLAs are more ideal and their image quality is improved.
     扫描电子显微镜 (SEM )显示微透镜阵列为表面极为平缓的方底拱面阵列 ,表面探针测试结果显示用补偿刻蚀法制作的微透镜的物方F数和像方F′数分别可达到 49.2 6和 5 3 .5 2 ,并且微透镜的点扩散函数比较接近理想值
短句来源
     On base of inside and outside research on control floor heave methods, the floor heave reasons of pump chamber under -850m level deep mine were analyzed and the new control floor heave method of prestressed anchor and inverted-arch combined supporting was proposed.
     本文在研究了国内外控制底鼓成果的基础上,分析了某矿-850水平水泵房底鼓严重破坏的原因, 提出采用预应力锚索反底拱联合支护的方法控制巷道底鼓。
     Practice has shown that the "anchors for the core, anchor wire and anchor wire horizontal truss as the backbone, supple mented quite long anchor ar m, anti - integration, waterproof anti - arch joint support system" is the ideal syste m of such reinforced works.
     实践表明,“以锚注为核心,组合锚索与锚索束平面桁架为骨干,辅以超长高强锚杆,让、抗结合,防水反底拱联合支护体系”是此类工程加固的理想体系.
     The reinforced effect of prestressed anchor and inverted-arch combined supporting pump chamber was analyzed using 3D numerical model by FLAC3D, the numerical result shows that prestressed anchor and inverted-arch combined supporting can control deep mine soft rock roadway floor heave effectively.
     并且应用三维数值计算分析了预应力锚索反底拱联合支护水泵房的力学效应,分析计算结果表明,应用预应力锚索反底拱联合支护能有效的控制深井软岩巷道的底鼓。
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  相似匹配句对
     This formula is suitable for half an arch from arch bottom to vault.
     公式的适用范围为顶的半个圈。
短句来源
     The support capability of inverted arch is analyzed .
     最后,进行了反支护能力的力学分析。
短句来源
     Earthquake Internal Force on Arches
     的地震内力
短句来源
     The Ultimate Load of the Arches
     的极限荷载
短句来源
     Chondrosarcoma of the skull base
     颅软骨肉瘤
短句来源
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The formation of Jinchuan ore body is analysed on the base of the geody-namics of the China plate. Due to this formation under high stresses and tem-peratures and later subsequent tectonic activity residual tectonic stresses mustbe still an active suspection of the galleries show that the considerable conver-gence of the tunnel boundaries are closely related to the complex geological struc-ture. These motions are further ascribed to: (1) Lateral creep due to normal stresses acting around the galleries; (2) Libration...

The formation of Jinchuan ore body is analysed on the base of the geody-namics of the China plate. Due to this formation under high stresses and tem-peratures and later subsequent tectonic activity residual tectonic stresses mustbe still an active suspection of the galleries show that the considerable conver-gence of the tunnel boundaries are closely related to the complex geological struc-ture. These motions are further ascribed to: (1) Lateral creep due to normal stresses acting around the galleries; (2) Libration of accumulated elastic energy, which is known as elastic re-covery; (3)Time-dependent dilatancy and swelling; (4)Sliding of plastic wedges along gliding planes. It is pointed that under the action of tectonic forces, stresses are concen-trated along the bottom and roof Hence a concrete bottom arch or slab is urgent-ly needed. Further it is stressed that water is a crucial factor in the swellingof the rock and the instabilities of the tunnel Water must be prevented as effi-ciently as possible to enter into the fissure within the rock. On the base of theabove reasoning some principles are suggested for the design of the lining andthe reinforcement of the tunnel. A lining with defromable joints especially forlarger overburdens is recommended.

本文根据中国板块的地球动力学分析了金川矿体的形成。金川矿体的形成是与高应力、高温度以及后来的构造活动所残留的构造应力有关。巷道围岩的收敛变形很大,说明它与复杂的地质构造关系密切。这些移动可以归结为: 1.由于作用在巷道周围的垂直应力产生侧向蠕变; 2.因弹性恢复而使积聚的弹性能量释放; 3.依时间而变化的扩容和膨胀; 4.沿滑动面产生滑动的塑性楔体。必须指出,在地质构造力的作用下巷道的顶板和底板应力集中,极需用底拱或板加固。对于膨胀岩或不稳定的巷道,更要强调水是一个决定因素,应尽可能有效地防止水渗入岩石的裂隙中去。根据上述理由,本文对衬砌设计和巷道加固提出了一些原理,尤其是对上复荷载大的巷道,这里介绍了一种具有预留缝的钢筋混凝土衬砌支护。

aving systematically analysed the mechanism offloor heave of roadways in soft rock, the paper broughtforward the method and theory of loose blasting andcasting concrete invert arch to overcome the floor heave,and introduced the engineering case of Santaizi shaft No. 1at Tiefa where the above mentioned method had b een used.Besides, the tim e becoming stablewas also predictedaccording to the rheological mechanical theory.

本文对软岩巷道底臌的机理进行了系统的分析,提出了“松动爆破与打封混凝土底拱”治理底臌的方法和原理,并介绍了在铁法三台子一井进行现场试验的一般情况。根据流变力学理论对治底后巷道底板的稳定时间进行了预测。

The Pandaoling tunnel is the longest non-pressure diversion tunnel of the main channel of theDatong River to Qinwangchuan region water transferring irrigation project. After the completion ofthe project. fissures appeared in the inlet and outlet sections, with width between 4 mm to 6 mm.threatening the long-term safe operation of the tunnel. Technical measures had been taken. such asarched steel supports, arched wall with gunited reinforcement wire concrete, metal lath and plaster onthe surf see of the tunnel....

The Pandaoling tunnel is the longest non-pressure diversion tunnel of the main channel of theDatong River to Qinwangchuan region water transferring irrigation project. After the completion ofthe project. fissures appeared in the inlet and outlet sections, with width between 4 mm to 6 mm.threatening the long-term safe operation of the tunnel. Technical measures had been taken. such asarched steel supports, arched wall with gunited reinforcement wire concrete, metal lath and plaster onthe surf see of the tunnel. poured-in-concrete on the bottom arch. Practices show that the abovementioned consolidation measures increased the entire bearing capacity of lined structures. preventingthe further development of fissures.

盘道岭隧洞是甘肃引大入秦灌溉工程总干渠上最长的无压引水隧洞。隧洞建成后,在进口段和出口段出现连续贯穿性纵斜向裂缝,缝宽4~6mm,危及隧洞长期运行安全。主要采取钢拱架、拱墙喷钢纤维混凝土及表面抹钢丝网水泥砂浆、底拱现浇钢筋混凝土等措施进行加固。实践证明,上述加固措施提高了衬砌结构的整体承载能力,抑制了裂缝的产生和发展,效果较好。

 
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