Based on the radar dense data of convectional cloud on June 12,2004 in Yongdeng county,choosing two similar convectional clouds as seeding and non-seeding cloud,the remarkable changes of radar echo parameters of the seeding cloud compared with the non-seeding cloud were discussed in this paper,and the rain enhancement effect was evaluated primarily with ground observational rainfall data.The results show that many aspects of the seeding cloud,such as precipitation,life characteristic and vertical characteri...

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The diorama of natural ground scene is modeled from the DEM data base on fractal theory and facet model.

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The main research work and its results are: 1Empirical results are analysed for the relations of fault displacement and earthquake magnitude, and difference between permanent ground deformation and maxium dynamic relative displacement on the two sides of fault; 2An analytic method is proposed for resopnse of a buried pipeline due to earthquake fault movement; 3A new shell model with an equivalent boundary and relted finite element analysis method are proposed for estimating response of a buried pipeline under large fault movement; 4By the proposed method, damage performance of water supply steel pipelines with large diameter is simulated to the real cases in Kocaeli Earthquake and Ji-Ji Earthquake, and simulating results show the real failure mode of pipes is revealed; 5Effects of overlying soil and soft/hard interlayers are analyzed on ground rupture mode and degree due to earthquake fault, and some earthquake rupture phenomena in soil layers are theoretically described for the first time; 6Pipeline response characters are discussed for the case of considering effects of soil layers on ground rupture mode; 7Research results and proposed method are applied in seismic analysis of pipline acrossing fault in the Gas Tansportation Project from West to East in China.

主要工作和成果包括：1）分析了不同斷層位錯形式下地表破裂位錯量與震級之間的經驗關系网站你懂在线观看亚洲国产精选，并基于集集地震近斷層記錄分析了斷層兩側永久地面變形和地震動相對位移幅值之間的差別，為合理地考慮地震斷層位錯地面變形動態(tài)影響提供了依據性屋视频在线；2）發(fā)展了斷層位錯地面大變形下管線反應分析模型并給出物理概念明確色综合久久久久久久久五月、簡單實用的解析分析方法；3）建立了斷層位錯下埋地管線反應分析的等效邊界殼模型有限元方法国产在线A级在线视频，方法中引入了以非線性彈簧形式模擬離斷層較遠處管段影響的等效邊界日本在线观看视频网站，簡化了計算模型并突出了近斷層處管體反應；4）利用等效邊界殼模型方法黄色网站A片在线免费观看无码亚洲，對土耳其地震和集集地震中大口徑埋地管線震害進行了模擬真实国产激情在线观看网站视频，結果表明所提方法可以更清地解釋震害所表現的管體破壞特征；5）研究了覆蓋土層和軟硬夾層的存在對斷層位錯地面破裂形式和程度的影響免费的色色的视频，首次從理論上解釋了某些地震地表破裂現象欧美日本高清在线不卡视频；6）探討了考慮土層對斷層位錯地面變形影響的管體反應特征亚洲色婷婷综合开心网；7）本項目成果已在西氣東輸工程的管道跨斷層抗震問題分析中得到了應用。

The war was a complete subversion of the war in the past to attack ground-based understanding of the concept; the Federal Republic of Yugoslavia in the war, the US-led NATO forces did not put in ground troops, the use of the Federal Republic of Yugoslavia Precision guided weapons of indiscriminate bombing, eventually forcing the Federal Republic of Yugoslavia to yield more ground attack proved that the traditional mode of war will soon be empty by the Navy-led joint operations by replacement of the three services, ground troops in modern warfare status, others Gradually given way to decline in the Air Force and Navy.

這次戰(zhàn)爭徹底顛覆了人們的對以往戰(zhàn)爭的以地面進攻為主的認識觀念黄片AAAAA超黄片；在對南聯盟的戰(zhàn)爭中两性激情综合网，以美國為首的北約部隊，在未投入地面部隊的情況下日老女人视频，對南聯盟采用高精度的制導武器狂轟濫炸亚洲三级电影网站，最終也迫使南聯盟屈服，更證明了地面進攻的傳統戰(zhàn)爭模式即將被以空海軍為主導的三軍聯合作戰(zhàn)所替代亚洲,无码,乱伦，地面部隊在現代戰(zhàn)爭中的地位免费无码又爽又刺激高潮男男，己逐步下降讓位于海空軍亚洲加勒比黑人一区二区。

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自動地面：地面自動平衡-提高搜索起飛地面線圈www18禁，按AUTO按鈕地面，降低線圈到地面女女激情毛片，并釋放精密自動按鈕平衡日韩一区二区免费精品观看。

Because of some advantages of large area reinforced concrete floor as firm structure, bright and clean surface and convenient cleaning in general public place it has replaced the cement mortar, terrazzo floor and floor tiles.

由于大面積鋼筋混凝土地面具有結構牢固、平整光潔和便于清潔的優(yōu)點高清日韩精品更新视频，在一般公眾場所欧美最新精品视频在线，從 2 0世紀 90年代起就取代了水泥砂漿地面、水磨石地面以及地板磚地面最近的日韩2019中文字幕在线。

Observation of radar and intensive surface wind of 0505 typhoon Haitang is used to analyze the relationship between radar reflectivity and observed precipitation and the relationship between mesoscale surface stream field and heavy rainfall. The analysis shows that when the Doppler radar reflectivity reaches 50 dbz, it has a good correspondence to the heavy one hour precipitation. Besides, heavy precipitation is also related to the mesoscale cyclonical current and confluent currents, it occurs near the mesoscale cyclonical or confluent current appearing at the same time.

利用嚴重影響浙江東南地區(qū)的2005年05號臺風的雷達和地面加密風場資料毛片最新网址，分析對比臺風中尺度暴雨過程中雷達回波與實況降水、中尺度地面流場與暴雨之間的關系淫荡的视频，結果得到：多普勒雷達近地面強回波帶或中心往往達到50 dbz時欧美牲交A欧美牲交aⅴ一，與一小時的強降水區(qū)有很好的對應關系，暴雨中心區(qū)也與地面加密的中尺度流場中出現的中尺度氣旋性環(huán)流和匯合氣流有關日韩福利免费网站视频，強暴雨區(qū)落在同時刻中尺度渦旋或匯合線附近拍自拍亚洲手机黄色视频在线观看。

Based on the analysis of the factors caused land subsidence, the internal mechanism and development process of land subsidence caused by two mainly factors of dewatering and underground mining have been studyed in this thesis. The random medium model and methods have been established to calculate the land subsidence and deformation caused by dewatering or underground minging and both of them. The prediction problem of land subsidence and deformation caused by single factor and many factors has been solved.

本文在分析引起地面沉降原因的基礎上，針對引起地面沉降變形的主要因素——地下水疏降和固體礦物開采国产精华Av在线导航网站，分析欧美第一页激情视频、研究了其引起地面沉降變形的內在機理和發(fā)展過程，推導出地下水疏降和地下固體礦物開采引起的地面沉降變形計算的隨機介質模型www.最新黄色视频.com，給出了具體的計算方法和計算步驟在线亚洲中文一区，并將固體礦物開采和巖土體疏水等導致地表沉降視為相互獨立的事件，解決了固體礦物開采和地下水疏降共同作用下的地面沉降變形的線性疊加計算問題欧美黄色精品。

For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型預測了現狀開采條件下未來20年的地下水位和地面沉降的變化亚洲日韩午夜，在此基礎上，提出了防治西安市地面沉降的五個地下水開采方案久久久久久精品人妻网，利用所建的地面沉降模型對各個設計方案其進行了模擬和預報精品国产福利在线色图，對預測結果的分析表明：①封停自備井是防治地面沉降最為直接和最有效的對策激情美女成人网站大全免费视频，對防治地面沉降起著最為積極的作用；②采用人工回灌方法使被壓縮的土層得到的恢復是非常有限的中文字幕网站免费看A片在线，對地面沉降不能起到根治作用黄色av录像，只有回灌量明顯大于開采量時才能有一定的效果igao视频为爱找点刺激；③&調整開采層次欧美中文字幕淫乱视频，在淺層取水&對防治地面沉降的效果十分明顯；④布設&砂井&可以增加對承壓含水層的越流補給量69pao国产成永久免费视，從而可以有效地緩解和控制地面沉降的發(fā)生和發(fā)展免费成年人视频；⑤對西安市的地下水開采，可在河流階地區(qū)二0二二年免费一级片、沖洪積扇區(qū)和黃土塬區(qū)分別采用1600m中国农村野外性XX视频、2000m、1600m的井間距布置應急自備井亚色91，分別采用2500m~3/d国产黄色在线观看、1500 m~3/d和200 m~3/d的單井開采量，開采第一承壓水亚洲美女黄色，在平水年或者豐水年不開采日韩AV无码一区二区三区，涵養(yǎng)地下水源，在枯水年啟動這些應急自備井開采黑人乱伦，在輸出分析范圍內共可獲得162000 m~3/d(5913萬m~3/a)開采量日本精品一区，可以有效地補充西安市的供水水源，緩解供水緊張局面思思久99久国内精品视频，開采年開采導致的下降的水位可在停采3～4年后得到基本恢復91亚洲精品，同時，這種開采方式不會造成大的地面沉降量黄软件在线观看。

The system includes a plane-carried communication subsystem, a satellite communication subsystem, and a ground communication subsystem, wherein, the ground communication subsystem includes a first communication terminal, a second communication terminal, and a ground communication network. The ground communication subsystem also includes an incoming transfer subsystem. The first communication terminal's calling to the second communication terminal is transferred to the corresponding fixed satellite communication terminal through the ground communication network, the satellite communication terminal, and plane-carried communication subsystem according to the correspondence of incoming call transfer.

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