砂性土 的英文怎麼說
中文拼音 [shāxìngtǔ]
砂性土
英文
cohesionless soil-
As the increase of domestic high - rise buildings, more and more deep foundation trench supporting constructions have come into existence. among the general geographical condition of the urban district in qingdao, most of regions, which mainly consist of strong de composed rocks, are in quite good condition. except for the sandy soil and oozy soil along sea sides. but the development of rock cracks and breaking zones and unstable lamprophyre still exist, so blasting is needed during constructions of foundation trench. blasting have bad influence on the stability of slopes. moreover. the slope - liding has happened for several times, so the engineering project of foundation trench attracts more attention of people
隨著國內高層建築的發展,深基坑支護工程越來越多,綜合青島市區的地質狀況,除海邊有砂性土及淤泥軟土外,大部分地域巖土條件相對較好,多以強風化巖為主,但巖石裂隙發育,間或有斷裂帶和穩定性極差的煌斑巖穿插其中,基坑施工時需要爆破施工,對邊坡的穩定造成了不利影響,加之連續出現的幾次滑坡失穩事件,基坑支護工程越來越引起了各方面的重視。Soils : investigation and testing - determination of minimal and maximal density of cohesionless soils
土壤.調查與試驗.砂性土最大和最小密度測定( 2 ) the lateral deformation is effectively limited by reinforced earth layers and the settlement becomes small. @ the lateral deformation is enlarged on soft foundations, and the settlement becomes large. @ the reinforced earth layers on soft foundations behaves extension. the response behaviors of high sand - gravel embankment are indicated as the following : ? he amplification factor of earthquake acceleration varies with reinforced earth structure. ( 2 ) the basic frequency of the original embankments in different reinforcement conditions is about 0. 76hz. ? the amplitude of dynamic deformation appears small and the dynamic stability is safe
研究表明:加筋土體能有效地限制路堤的側向位移發展,減小沉降變形量;軟基路堤的側向位移較大,將顯著地增大路堤的沉降變形;軟基上加筋土墊層中產生的拉應力最大;加筋砂礫土路堤在振動荷載作用下動變形反應較小,具有良好地動力穩定性。In view of its characteristic, uses inspires crushing sand, erosion control seepage control continuous wall, erosion - resisting flexibility geotechnical engineering ge - bin - shi - long and so on synthesis processing measures to carry on the design
針對其特點,採用振沖擠密砂石樁、防滲防沖連續墻、抗沖柔性土工布金屬網路石籠等結合處理措施進行設計。A survey of literature shows that little study has been done on uptake of pollutants by plants from the polygonaceae, and that the reports about their physiological and biochemical characteristics under heavy metal stress were sporadically seen. a batch of sand culture and soil culture experiments were carried out to investigate heavy metal and radiocesium uptak e and accumulation by rumex acetosa linn, polygonum microcephalum d. don, and rumex hastatus d. don widely distributed on copper mining areas, and their physiological and biochemical characteristics under cu zn stress, as well their potentials in application to phytoremediation
本論文以廣泛生長于銅礦區的蓼科植物酸模、小頭蓼和戟葉酸模為試驗材料,運用砂培、土培等方法,研究它們對重金屬( cu 、 zn )以及放射性核素( ~ ( 134 ) cs )的吸收和積累特性以及cu 、 zn脅迫條件下它們的生理生化特徵,初步探討它們在無機污染物污染土壤植物修復中的應用潛力。Magnesium deficiency most commonly occurs in acid, sandy soils in areas of moderate to high rainfall.
缺鎂常常發生在中雨量或高雨量區的酸性砂質土。Evaporation varies from evaporation capability, embedded depth of groundwater is more easy, the effect is more obvious ; evaporation capacity decreases if embedded depth of groundwater become deeply, and close to zero under the some depth ; evaporation capacity of different soil texture is different. at ordinary situation, if embedded depth of groundwater is easy, evaporation capacity of the wide and grit soil is powerful ; if embedded depth of groundwater is deep, evaporation capacity of the slender and viscosity soil is powerful
潛水蒸發隨大氣蒸發能力的變化而變化,且潛水埋深越淺,受其影響越明顯:潛水蒸發隨潛水埋深增加而減少,在某一埋深以下潛水蒸發接近於零:不同土質其潛水蒸發量不同,一般情況下,在潛水埋深較小時,土質較粗、偏砂性土壤潛水蒸發較大;當潛水埋深較大時,土質較細、偏粘性土壤的潛水蒸發較大。In this paper, on the basis of the numerical analysis with the concept of equivalent soil mass with reinforcement and shake table model test, the calculation of high loess embankment with geogrid - reinforcement in highway is carried out under static loading, and the dynamic response of high reinforced sand - gravel embankment with grogrid - reinforcement in highway is tested under earthquake. the behaviors of loess embankment are indicated as the following : ? he stress and deformation varies with reinforcement design conditions and foundation types
本文通過將土工合成材料與土體視為加筋等效土體的數值計算方法和振動臺模型試驗,以加筋黃土高路堤和豎直擋板加筋砂礫土高路堤為研究對象,計算分析了不同堤基上不同加筋設計條件下黃土高路堤的靜應力及變形變化規律,試驗研究了不同加筋條件下砂礫土高路堤的動力反應特性。Studying the permeability of deep mixed cement - treated sand through tests, this paper probed into the permeability character and the influence of additives on the permeability character of cement - treated sand. the reinforced mechanism of cement - treated sand was investigated
通過對經深層攪拌形成的水泥粗砂土的滲透試驗的研究和對室內外試驗結果的分析,探討了水泥砂性土的滲透性及外摻料對滲透特性的影響和水泥砂性土的加固機理,為深層攪拌法改變砂土滲透性提供依據。On the basis of repeated analyses and verifications, the construction techniques of shed - pipe grouting etc. are adopted therein, with which the tunneling in low - cemented sandy soil is successfully carried out under the condition of higher ground water level, and then both the design and construction are demonstrated to be reasonable and reliable through the actual water delivery operation
在反復分析論證的基礎上通過採用注漿管棚等施工技術,成功地在高地下水位低膠結度的砂性土中開挖隧洞,實際過水應用表明設計施工是合理可靠的。Experimental research on troubles of epb shield construction in sandy soil
土壓平衡盾構在砂性土中施工問題的試驗研究Silt is a special type of soil which property differs from sand and clay. but silt did not be given sufficient research previously, accordingly, there has not have systematic theory about it by now
粉土為砂性土和粘性土之間的過渡類型,其性質既不同於砂性土,又有別于粘性土,以往人們對它的研究較少,尚未形成系統的理論。Different from clay soil and sand soil, the particle extent of silty soil is more narrow, so the component design method and construction technology, which is reasonable for clay soil and sand soil may not be effective to silty soil
粉質土不同於粘性土和砂性土,其粒度分佈范圍窄,所以適用於粘性土與砂性土的配合比及施工技術與方法並不就一定適用於粉質土。The revising formula on p - y curves of the back pile subjected to the front pile in sand and the calculation method of laterally loaded single pile and pile groups are put forward. these formulas, which have practical value in piles calculation, are enough to meet piles calculation requirement
提出了群樁在砂性土中前樁對后樁土反力的影響折減系數公式,研究得出了水平承載樁(單樁、群樁)的計算方法。( 2 ) in the thesis, some other important factors on the stability of subway foundation during earthquake are studied, for example, the intension of earthquake, the unit weight of the subway tunnel, the depth of the subway tunnel, the content of clay in sandy soil, and inputing different earthquake waves
( 2 )研究了對地鐵隧道地基的抗震穩定性有著重要影響的一些其它因素,例如,地震動強度、地鐵隧道的平均容重、地鐵隧道的埋深、砂性土中粘性土的含量以及不同的實測地震波等。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。To meet the need of settlement calculation with fem when absence of laboratory triaxial test data in common road engineering, methods of determining the five parameters included in tangential elastic module through soil routine tests and the related emendation coefficient are given. at the same time, one approximately substituted formula for tangential poisson ratio is also developed, which is suitable for both sandy soil and cohesive soil. ( 3 ) research on main parameters modification of duncan - chang model based on the improved bp network
對於一般道路工程中不做三軸試驗但須進行沉降有限元計算的情況,給出了依據土體常規試驗的切線彈性模量確定方法和相關修正系數,同時也提出了對砂性土和粘性土均適用的切線泊松比的近似替代式子; ( 3 )基於改進的bp網路對鄧肯張模型主要參數修正研究。The papers and technical reports about the oil tank foundation treatment shows that in our country abundant experiences have been built up in dealing with the soft clay foundation, while there were few cases for sand foundation. analyzing the geological condition, the author proposed that the foundation soils at shuguang pump station belong to high - permeability sand layers
根據曙光泵站地區的地質條件,論文認為該區主要是一套以高透水性的砂類土為主的地層,粘性土層較薄且富夾薄層粉細砂,地基土的水平向與垂直向排水條件良好。Taking the aqueous sandy soil in hot summer and warm winter area as a heat transfer medium, studies the influence of seepage on heat transfer characteristics of the soil by a simulating experiment
摘要以夏熱冬暖地區富水土壤砂質土為傳熱介質,進行了水滲流對其傳熱特性影響的實驗模擬研究。Finally, sulfur maybe a limiting element under cool conditions where clean air prevails, or in extremely sandy soils
最後,對于空氣清潔或砂質土壤的寒冷地區,硫可能會成為植物生長的限制性養分。分享友人