震中分佈 的英文怎麼說
中文拼音 [zhènzhōngfēnbù]
震中分佈
英文
epicenter distribution-
Based on an integrated correlation and study of regional and deep geophysical data such as 12 magnetotelluric sounding profiles, 5 seismic profiles, tomographic imaging velocity structural data and gravity and magnetic field, the authors have formulated the 3d deep tectonic framework of the middle and lower yangtze valley and its neighborring areas in relation to the distribution of auriferous skarn deposits and copper ( associated with gold ) skarn deposits
作者藉助12條大地電磁測深剖面、 5條地震剖面、層析成像速度結構資料、重磁場等區域的和深部的地球物理資料進行綜合對比研究,給出長江中下游及其鄰區的三維深部構造格架及其與含金夕卡巖礦床和銅伴生金夕卡巖礦床的分佈關系。There is a north - north - east negative anomaly belt of aerial magnetism in the middle - east part of the basin, which could be displayed by the aerial magnetism of commutative field, upwardly continuation, lvt in earthquakes, the experimentation of granite liquation ( demagnetization ), the distribution of neozoic era volcanic rock, earthquake, hot spring and ground feature. the anomaly shows the blocking in east - west direction, and it is also associated with intense activity of deep heat interaction and the development of the crust - mantle mixed layer in the north qiangtang
從區域航磁、向上延拓、地震低速層、花崗巖熔融(退磁)實驗、新生代火山巖的分佈、地震、溫泉、地貌等發現,盆地中東部存在一北北東向航磁負異常帶,既顯示出東西分塊,也與北羌塘深部熱力作用強烈活動、發育「殼幔混合層」有聯系。In the case that hypocenter depth is far less than the epicenter distance without depth phases available, only the relative epicenter distribution could be obtained accurately by double difference method, the depth determined would be not stable
當震源深度遠小於震中距時,如果沒有深度震相的參與,只能得到誤差較小的震中相對分佈,深度的相對位置仍有較大的誤差。The reefs widely developed from sinian to neogene in china, with main reef - forming stages in devonian, permian and neogene, respectively
摘要中國生物礁從震旦紀至新近紀均有發育,分佈范圍廣,並有泥盆紀、二疊紀和新近紀3個主要造礁期。Meanwhile, by using delaminating combination finite element method and macro finite element analysis methods, the paper present two kinds of analysis programs. based on the aforementioned analysis program, the failure form, distribution of plastic hinge, load - carrying capacity, displacement and ductility characteristics are investigated to reveal the failure mechanism and the failure proceeding under seismic effects. the results are in good agreement with the test results, indicating the precision of the aforementioned two programs is satisfiable to the practical engineering design
分別採用分層組合式有限元和宏觀有限元分析方法,編寫了2種鋼筋混凝土中高帶邊框柱剪力墻結構的彈塑性有限元分析程序,同時利用上述2種分析程序,研究了模型結構的破壞形態、塑性鉸的分佈、承載力、位移及延性性能等特性,探討了這類結構在地震作用下的破壞全過程與破壞機理,得到其主要受力特性和抗震性能的一般規律,所得結果與試驗值吻合較好,表明上述2種程序分析結果的精度均可滿足實際工程的設計要求,因此可用於這類結構的抗震性能分析與設計。Taowan conglomerate was formed with underwater seismism at early cambrian period and consists of shattering sedimentary rock, tsunami rock, seismic turbidite and seismic volcanic rock. the shattering sedimentary rock consists of folded rock, cracked rock and autobreccia. the seismic turbidite is located in the south of luonan ductile shear zone and is called the narrow taowan conglomerate. contrarily the broad taowan conglomerate consists of shattering sedimentary rock, tsunami rock located in the north of the zone. the seismic sequence of shattering sedimentary rock - tsunami rock - seismic turbidite - seismic volcanic rock - normal sedimentary rock was first found in luonan shanxi and is rare among the reported examples about it, so it is a good example and offers power evidences to study how the southern marginal basin of huabei plate transferred to qinling orogenic belt
震濁積巖分佈於洛河韌性剪切構造帶之南,屬傳統"陶灣礫巖"范圍和涵義,即為狹義陶灣礫巖而廣義陶灣礫巖包括分佈於洛河韌性剪切構造帶之北的震積巖海嘯巖及狹義陶灣礫巖。陜西洛南地區首次發現的震積巖海嘯巖震濁積巖震火山巖正常背景沉積地震沉積序列之完整在所報導古地震作用沉積序列當中實屬罕見,為華北地塊南緣造山過程及深入了解古地震作用提供了良好地段和有力證據。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全螺栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究,比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回曲線有顯著影響,全部節點都有顯著的剛度退化; 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。Synthetically analyzed the fracture, earthquake, coal ranks and their distribution, coal seam ' s buried depth and so on, the authors have realised that low - rank bituminites, early - middle jurassic in tianshan area, are formed by burial metamorphism, and it is widespread
摘要通過對天山地區的斷裂構造、地震、地熱、煤級及其時空分佈、煤層埋深等因素的綜合分析,認為天山北緣及其鄰區早中侏羅世大范圍分佈的低級煙煤主要由深成變質作用形成,深成變質作用具普遍性。The pilot fuel model has been given to calculate the distribution of the liquid fuel and time of fuel pre - combustion, at the same time, analyzing the important action to the combustion of the natural gas in the combustion chamber of engine, determining the best quantity of pilot fuel. the explosive combustion model has been established to compute the pressure of the cylinder during the combustion, determining the main influence factors. the emission model has been established to forecast the co, nox emission
理論方面,提出了基於化學反應的燃燒模型?多組分氣相反應系統的化學反應動力學模型,以此進行雙燃料發動機的熱力學?化學反應動力計算;引燃油燃燒模型,計算引燃油液滴的分佈規律和滯燃期,驗證引燃油在雙燃料發動機燃燒過程中的作用,揭示不同噴油規律對雙燃料發動機的影響,確定在不同負荷下的合理引燃油量;爆震模型,揭示爆震與工質能量釋放間的關系和影響爆震的各種運轉因素,確定合理的爆震依據,減小爆震傾向。It is found that the seismic low-velocity zone lies wholly within the plates.
現在發現地震底速帶全部分佈在板塊之中。The results show that the planes are widely distributed and lie concealed, being the deformation traces left over by the seismological fault in the soil mass and in direct response to the recent tectonic activities, whice greatly influences on the stability of the soil mass as a part of the infrastructural subgrade
結果表明:土體構造結構面分佈廣泛且具隱伏性,是發震斷裂在土體中留下的變形形跡,是近期構造活動最直接的反映,對工程地基土體的穩定性有重要影響。The gravity events include slumping event and turbidity - current event, and the gravity event deposits were developed in deep - water carbonate rocks in the upper sinian
重力事件可分為滑塌事件和濁流事件,其沉積產物均分佈於上震旦統,夾在大套的深水碳酸鹽巖中。The regional deformation anomaly of medium - term phase ( 1 ~ 3 years or more ) before strong earthquake occurrence usually shows three aspects of common characteristics : for regional vertical deformation, it shows distribution features of anomalous uplift area and concentration belt - high gradient belt of vertical differential deformation ( some of them reflect distribution of four quadrants ) related to tectonics ; for horizontal movement, it shows features of centralized high strain area ( or zone ) of domination shear deformation related to active blocks and faults ; it shows common features of regional vertical deformation anomaly area and high strain distribution area of horizontal deformation
摘要強震前中期階段( 1 ~ 3年或稍長)區域性形變異常往往表現出3個方面的共性特徵:區域垂直運動變形呈現與構造有關的異常隆起區、垂直差異變形高梯度帶(有的還呈「四象限」 )分佈特徵;水準運動變形呈現與活動地塊及斷裂構造有關的、以剪切變形?主的高應變集中區(帶)特徵;區域性垂直形變異常區與水準形變的高應變分佈區共性的特徵。The result show, most of the medium - strong earthquakes faults are dip - slip reversed, distribution of the main stress p axis is sector from west to east ; there are large difference between kuche and baicheng region in seismic activities, but the characteristic of cluster is same in the two region ; the distribution of medium - strong earthquakes is nw direction in baicheng region, it show, there can have a concealed fault ; small earthquake clusters ' activities can reflect the effect that local medium - strong earthquakes to the secondary small structure around it
結果表明:南天山東段中強震震源斷錯以傾滑逆斷為主,主壓應力p軸由西到東呈扇形分佈;相距較近的庫車與拜城地區地震活動存在較大差異,但均存在明顯的成叢性分佈特點;拜城地區中強地震分佈呈北西向可能預示著該區存在隱伏斷裂,小震群活動則可能反映了局部中強震對周圍次級小構造的影響。The integrated identification of fractures with the bpo interpretation of logs and the 3d seismic fracture interpretation technology were used to predict the development and distribution rules of fractures in ve rtical and plane directions of mesozoic reservoirs of baigezhuang region. the plane distribution of the stress fields of different major oil reservoirs determined with finite element numerical simulation provides a theoretical foundation for the research of the plane distribution of the fracture. thus, the quantitative prediction of the tectonic fractures is possible
本文應用測井參數的bp神經網路裂縫綜合識別方法、三維地震裂縫檢測技術,預測了柏各莊地區中生界儲層平面或縱向上裂縫的發育分佈及規律;並用有限元法數值模擬技術展示出不同主力油層的平面古應力狀態,為研究裂縫的平面分佈規律提供了理論依據;在此基礎上,依據巖石破裂準則進行了構造裂縫定量預測。Non linear static & dynamic finite element procedure is adopted for the true emulation of the four typical geologic profiles of the dam, and imitates to compute the each stage deformation and stress distribution from the dam fill to full water run and during the 7 degree seismic intensity, the article also imitates to compute the response to earthquake force, the excess vibration pore water pressure distribution and permanent deformation, predicting the occurrence possibility of the crac ^ plastic zone and earthquake liquefaction
採用非線性靜、動力有限元分析程序對圍壩的4個典型剖面進行了靜、動力模擬模擬,模擬計算了壩體自填築至蓄水運行和發生7地震各階段壩體及壩基的變形以及應力分佈,地震應力響應和地震引起的超靜振動孔隙水壓力分佈以及永久變形。判斷了壩體和壩基中出現裂縫、塑性區以及地震液化的可能性。Based on comparison of several technical schemes, the method of sand bedding pre - elevating and step water - filling pre - compressing is adopted. so the dissertation is consist of two parts : ( 1 ) the applicability study for the method of sand bedding pre - elevating and step water - filling pre - compressing, including numerical analyses for the thickness of sand bedding, the consolidation, settlement and stability of foundation, drainage, possibility of foundation liquefaction under seismic loading, et al. ( 2 ) monitoring at construction stage and checking the effect of foundation treatment, including the measurements of the settlement velocity and non - uniform settlement of ring beam under the tank, pore pressures and horizontal displacements in foundation, the pressure distribution at the bottom of oil tank and the strength increase of soils
通過多種技術方案比較,最終選擇了技術先進的砂墊層預抬高分級充水預壓法,論文工作主要由以下兩部分組成: ( 1 )砂墊層預抬高分級充水預壓法的適用性研究,其中包括砂墊層厚度、地基沉降與固結度、地基穩定性、降水、地震作用下砂土液化的可能性等方面的計算分析; ( 2 )施工監測與地基處理效果檢驗,其中包括油罐環梁基礎沉降速率與不均勻沉降程度、各分級充水加載階段地基超靜孔壓與深層水平位移、油罐底板壓力分佈及地基土強度增長等方面的實測與數據分析。The response of the structures will be translational as well as torsional because of the asymmetric - plan that caused by the irregular distribution of the mass and the stiffness so that the center of the inertia force and the resistant force will be unlined. the torsional coupling response will induce the structure ' s dimensional effects that are not easy to be resolved in the two dimensions
由於結構樓層中的質量和剛度等分佈的不規則,造成樓層的質量中心和剛度中心不重合,從而使得在地震作用下結構各樓層受到的慣性力與樓層抗力不共線,結構將會在不同程度上表現為平動與扭轉耦聯的變形特徵。According to the code for aseismatic design of building structure ( gbj11 - 89 ), the seismic base - shear method has always been used to calculate the seismic response of building structures. in those structures, their weights and rigidities equally distribute along their heights which do not exceed 40m, and their deformations are mostly the shearing type ( when the structures " ratio of height and width are smaller than 4 )
我國《建築抗震設計規范》 ( gbj11 ? 89 )中規定,對于重量和剛度沿高度分佈比較均勻、高度不超過40m ,並以剪切變形為主(房屋高寬比小於4時)的結構,可採用近似計演算法,即底部剪力法來計算其地震響應。At first the authors explain the structural environment of earthquake in china, by giving an example of the institutes of epicenter of earthquake in china, from january, 1989 to december, 1998, it shows the recent activity characteritic and districts division of earthquake in china. secondly they give a prediction by explaining stages about the earthquake activity in the past 100 years in china
首先對中國地震構造環境作了分析,並以1989年1月至1998年12月中國地震震中分佈為例說明中國近期地震活動特徵且對中國近期進行地震分區.最後,試圖通過對中國近100年地震活動分期分析,作出相應的中長期預測分享友人