頂底圍巖 的英文怎麼說
中文拼音 [dǐngdewéiyán]
頂底圍巖
英文
enclosing roof and floor-
2 both the hanging wall and the footwail rock of ore bodies are garnet biotite schist, protoliths are alkaline volcanic rocks ( tracyh andesite ). according to characteristics of trace elements assemblages and the setting of tectonics, these alkaline volcanic rocks were derived from the lower degree melting of metasomatic and enriched mantle ( eml ) in the initial stage of middle proterozoic epoch. they strongly enriched in large ion lithophile elements ( lile ), such as ba
2 、礦體頂、底板圍巖（石榴石黑雲母片巖、鈉長黑雲母片巖等）的原巖為堿性火山巖（粗面安山巖） ，相對富集大離子親石元素ba 、 cs 、 rb 、 k 、 lree及貧zr 、 sr 、 ti 、 hf 、 hree ，為早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的堿性火山巖。( 7 ) the destroyed area came into being in the condition of supports, such as tensile at vault and floor, shearing at nance and corner of wall
而且，錨桿支護對圍巖變形有較好的控製作用， 3 . 5m長錨桿可使拱頂下沉下降40左右，底板隆起下降34 。This text has analyzed the mechanism that relieving - shot control the deformation of roadway country rock, and the sureness of the rational parameter, relieving - shot is practiced in south high - pressure 31022 haulageway in gedian mine of shenhuo group, through the deformation data of two sides roadway and the roof - floor after releasing pressure, the effect of releasing pressure is verified, and relieving - shot parameter is rational
本文分析了卸壓爆破控制巷道圍巖變形的機理，以及合理參數的確定，並在神火集團葛店礦高地壓南31022機巷進行了卸壓實踐，通過卸壓后的巷道兩幫以及頂底板的變形量數據，證實了卸壓爆破起到了很好的卸壓效果，且卸壓爆破參數是合理的。Its displacement could reduced to 40 percents at vault and 34 percents at floor in the condition of support, especially in the condition of cable support
在拱頂和底板以張性破壞為主，而在拱腰和墻腳以剪切破壞為主。噴層對圍巖塑性破壞的限製作用顯著。With the increase of lateral pressure modulus, the magnitude of principal stress decreases and the direction of it is hardly changeable ; with the increase of the angle between the direction of the maximal horizontal principal stress on magnitude and the fault bearing, the magnitude of principal stress increase and its direction can hardly change ; with the increase of the elastic modulus of rocks, the magnitude of principal stress increases and the direction changes more ; with the increase of pr, the magnitude of principal stress decreases and the direction changes more ; with the increase of lateral pressure modulus, the principal stress at hance, the tress at topmost arch, bottom arch and principal stress at lateral arch decreases, with the increase of the depth of tunnel, the stress of surrounding rock also increases, and the poorer the quality of surrounding rock is, the little its principle stress is
分析得出，隨著側壓力系數的增大，主應力量值減小，主應力方位難改變；隨著與斷層走向的夾角增大，主應力量值增大，應力方向難改變：隨著巖石的彈性模量的增大，主應力量值增大，方向變化越大；隨著泊松比的增大，主應力量值減小，方位變化越大。隨著側壓力系數的增大，頂、底拱處的各應力值增大，拱腰處的主應力減小，剪應力增大，側拱處的各主應力減小，同一側壓力系數的條件下圍巖質量越差，各應力值也越小；隨著洞室埋深的增加，圍巖壓力也增大，圍巖質量越差，其應力值也減小。A bearing surface transmits the interaction between an arch dam and its foundation, the strength of which directly affects the constraint of the bedrock to the dam, and thus affects the stress and deformation of the dam. the influence is studied in this paper with nonlinear finite element method, as an example, for a high arch dam in design. the results show that the influence on stress is only limited within the local area near the bearing surface, larger on the maximum principal tensile stress than on the principal compression stress, and the decrease of the strength does not cause unlimited increase of the maximum stress. the influence on the displacement of the top of the dam is smaller than that of the bottom of the dam, especially the relative downstream displacement. at the lower strength of the bearing surface, the relative downstream displacement at the bottom of the dam increases with the decrease of the strength
建基面是傳遞拱壩和基巖相互作用的紐帶，它的強度直接影響基巖對壩體的約束，從而影響壩體的應力和變形.採用非線性有限單元法，以設計中的某高拱壩為例，分析建基面強度對壩體應力和變形的影響.結果表明建基面強度對壩體應力的影響僅限於建基面附近的局部范圍，對最大主拉應力的影響要大於對最大主壓應力的影響，建基面強度的降低不會無限地增大壩體的應力數值；建基面強度對壩頂位移的影響較小，但對壩底位移（尤其是順河向相對位移）的影響較大，當建基面強度較低時，壩底順河向相對位移隨建基面強度的降低而增大1. under the same kind of wall rock and the same condition, displacement of pipe liner is symmetry, for tunnel structure and suffered load are symmetry. as level terra stress is bigger, the maximum of displacement and the first main stress occur in tie - in of pipe liner structure, and its direction is radial and points in hole ; the direction of the third main stress is annular and its maximum occurs in top and bottom hole inner
1 、同一類圍巖在同一種工況下，由於結構和荷載的對稱性，管片襯砌結構的位移也表現出對稱性，因水平向地應力較大，位移最大值、第一主應力的最大值發生在管片襯砌結構的接頭處，方向為徑向指向洞內；第三主應力的方向為環向，較大值發生在洞頂和洞底內側。分享友人