Appraise the test scheme of dynamic consolidation of each test district before test and make optimization suggestions ; 4. the grain - size distrilidation of the underlayer of dynamic consolidation has great on consumption of the energy i, the better the dynamic consolidation effect is ; 5. the deformation effect of dynamic consolidation foundation is that not only the settlement deformation of foundation will decrease greatly after pounding, but residual settlement deformation in each test district are compared, it can be concluded that the deformation stability of foundation of the runway engineering of pu - dong airport can satisfy the design requirment through dynamic consolidation according to optimized test scheme. but the underlayer of dynamic consolidation should be made when pounding
論文的主要工作和研究認識如下: ( 1 )確定必要的強
夯施工參數; ( 2 )對既有砂性土又有粘性土地基的最佳
夯擊次數的確定方法進行了探討; ( 3 )對試驗前各試驗小區的強
夯試驗方案進行了評價,並提出了優化建議; ( 4 )強
夯墊層材料的級配對
夯擊能的消耗有很大影響,級配好的墊層對
夯擊能的傳遞比級配差的墊層效果好; ( 5 )強
夯地基的變形效應主要是指
夯后地基不但沉降變形會大幅度降低,而且剩餘沉降變形會緩慢地發生; ( 6 )在比較各試驗小區的變形穩定性后,按照優化后的試驗方案進行強
夯處理,則浦東
機場場道工程地基的變形穩定性能滿足設計要求,但須在處理時施加強
夯墊層。
The company specializes in the production of air - cooled diesel and gasoline engine, generator sets, sprayer pump, vibrator shaft, compact machinery, cut machinery, robin gasoline enginine, power tiller
公司專業生產風冷柴油
機,汽油
機,及其配套發電
機組,水泵
機組,藥泵,振動泵,平板
夯,割縫
機,羅賓汽油
機,手扶拖拉
機。
Railway track construction and maintenance plant. tamping and levelling machines with continuous progress. specifications
鐵路建造和維護設備.連續行進的打
夯機與平土
機.規范
A3. initially, 12 types of commonly used equipment are included in the qpme system. they are : tracked bulldozer ; wheeled bulldozer ; tracked loader ; wheeled loader ; excavator ; generator ; mobile crane ; vibratory roller ; road roller ; asphalt paver ; vibratory compactor ; and power rammer
答3優質
機動設備制度初步會採用12類常見的設備,分別是: 1履帶式推土
機; 2輪動式推土
機; 3履帶式搬土
機; 4輪動式搬土
機; 5挖土
機; 6發電
機; 7流動起重
機; 8振蕩式滾壓
機; 9道路滾壓
機; 10瀝青攤鋪
機; 11振動式壓實
機及12
機動
夯土
機。
Improve the operation and management mechanism, define the business development strategy and focus, strengthen financial position, upgrade the risk management system, and tighten internal control
完善了經營管理
機制,明晰了業務發展戰略和重點,
夯實了財務基礎,改善了風險管理體系,加強了內控監督
機制。
Finally summarizing comprehensively various measures deals with collapsible loess, aiming at property and actual condition of collapsible loess at guanzhong area, taking example for foundation trea tment of xianyang aerodrome speedway, investigating and demonstrating many projects on foundation treatment and think dynamic compaction and lime - soil compaction pile are fit to treat collapsible loess of this section, designing both of the projects and hope to offer suggestions to engineering practice
最後全面總結了濕陷性黃土處理的各種措施,針對關中地區濕陷性黃土的特點和實際情況,以咸陽
機場高速公路路基處理為例,對多種地基處理方案進行研究論證后認為,強
夯法和灰土擠密樁法適合該路段濕陷性黃土處理,並分別對這兩種方案進行了設計,以期給工程實踐提供建議值。
This paper discusses the performance and working principle of pressure feedback controlled hydraulic taming and drawing equipment and puts forward that with the shock pressure changing reasonably according to the resistance, the shock energy and frequency can change independently and steplessly
摘要對壓力回饋控制液壓
夯拔裝置的性能和
機理進行了分析,提出了針對立柱阻力適時調節系統的沖擊壓力,可實現沖擊能和沖擊頻率的獨立無級調節。
Through researching on the classification and form mechanism of loess pitfall, some methods treating the pitfall in collapsibility loess roadbed such as grouting, geocell, explosion, dynamic consolidation and sddc etc. are put forward and the suitable terms of various kinds of methods and their own pluses and minuses have been discussed
通過對黃土陷穴的分類、形成
機理進行分析研究,提出了灌漿法、土工格室、爆破法、強
夯法、 sddc法等幾種濕陷性黃土路基陷穴處理的方法,並分析了各種方法的適用條件和各自的優缺點。
In addition to rammers and smaller vibration plates, a whole range of other products for the domestic market and for export worldwide is currently produced in the usa
除打
夯機和小型振動盤之外,其他的國內用和全球范圍供應的產品都廣泛的在美國生產。
In the paper, through the example of the waiting hall of xt an international airport, several main questions meet in the design have been discussed, analyzed and solved, which include in negative friction force around pile in collapsible loess, the calculating method of bearing capacity of pile. the crack control methods of analysis and design in the super - length reinforced structure have been tested in the project, and reached the effect to be hoped
本文通過西安咸陽國際
機場新航站樓工程設計的具體實例,分析、論述了建築結構在設計中遇到並解決的幾個主要問題:如自重濕陷性黃土場地樁基負摩阻力問題;淺層土雖經強
夯但下層土仍有可能產生負摩阻力時樁的承載力計算方法;對鋼筋混凝土結構的裂縫控制實現超長設計的分析和設計對策,經過工程驗證,達到了預期的效果。
Today we offer our customers a wide range of manily hand ? operated machines and equipment for soil compaction, from our smallest rammer, weighing in at barely 50 kilos, to the heavy duty plates, which tip the scale at 800 kilogrammes operating weight. the range also includes ride ? on rollers
今天,我們提供更多的手控壓實
機械供客戶選擇-從最小的僅重50公斤的振動
夯到800公斤操作重量的重型平板
夯,還包括騎跨式壓路
機。
The present paper, based on practice of dynamic compaction to eliminate sandy soil liquefaction on shi - an expressway, is presenting a penetrated analysis of working properties and mechanism of consolidation of dynamic compaction. some construction co - efficient have also been presented for reference in highway construction. meanwhile, in combination with the flat board static load tests, a simple and easy - to - look analysis model has been proposed for composite ground of macadam ( fly - ash ) the present paper concludes that dynamic compaction for treatment of sandy soil liquefaction is an effective approach
本文結合石安高速公路建設中採用強
夯法處治砂土液化地基的工程實踐,對強
夯法的工作性狀和加固
機理做了剖析,對強
夯施工參數提出了在公路領域中的選用特點和方法,同時,結合野外的平板靜載試驗,提出一個簡單直觀的碎石(粉煤灰)樁復合地基分析模型。
Mobile road construction machines - safety - part 3 : specific requirements for soil stabilization machines ; german version en 500 - 3 : 1995
移動式築路機械.安全性.第3部分:夯土機特殊要求