loess area 中文意思是什麼
loess area
解釋
黃土區-
In view of the natural conditions in loess area of gansu, in the light of investigation conditions of seepage of built loess and weak rock highway tunnels in this area and classification of water gushing conditions for railway tunnels, and by engineering analogism, the classification of tunnel water gushing types suited the structure design of highway tunnel waterproof and drainage, and the three methods for checking and subdividing water gushing types are presented
摘要針對甘肅黃土區的自然條件，依據該地區已建黃土及軟巖公路隧道滲漏水調查情況和鐵路隨道涌水狀態分類，運用工程類比法提出適合該地區公路隧道防排水結構設計的隧道涌水類型劃分及對涌水類型校核與細分的三種方法。 -
Responses of soil water and fertility to the alfalfa crop rotation in semiarid loess area of china
半乾旱區不同作物與苜蓿輪作對土壤水分恢復與肥力消耗的影響 -
Third, in the loess area, there is tension fractures on the top of slope generally. deep of the tension fracture could be deduced theoretically by columb strength theory
3 、黃土地區，邊坡后緣常存在垂直張裂縫，裂縫深度根據土的強度指標可以計算。 -
Gully erosion, which is universal on original lands, but also the special forms, for example, hole erosion gravel erosion debris slide and debris flow, which is unusual in loess area, ( 2 ) based on a long - term fixed point experiments in proving ground of the south stackpile, the soil erosion factors have been researched quantitatively, the runoff and erosion affected factors have been made sure and the experiential models of producing water and soil have been taken in newly - constructed stage, early stage and later stage of reclamation
確定南排土場原地貌的水蝕模數為3700 4400t km ~ 2 ? a ；在排土場新造地貌上，擊濺、面蝕、細溝侵蝕、淺溝侵蝕、沉陷侵蝕、砂礫化面蝕、土砂瀉溜和坡面泥石流等水土流失形式出現頻率和發生程度都明顯強于原地貌。 （ 2 ）以南排土場徑流試驗場長期的定位觀測為基礎，對排土場未復墾時期、復墾初期、復墾後期的土壤水蝕影響因子進行定量研究，確定了徑流和土壤水蝕的主要影響因子及其臨界值，建立了產流產沙的經驗模型。 -
Arrangement of protective forest system in gulled - hilly loess area based on water balance
基於水分平衡的黃土區小流域防護林體系高效空間配置 -
The collapsible loess is often met during the construction of the high - grade highway in the loess area, and the main failure is the uneven subsidence of the roadbed and the culvert, which affects the safe usage of the roadbed and the culvert, etc. directed against this, based on the chankou - lanzhou freeway construction, the paper analyzes the application of the composite ground formed by lime - soil pile under the bridge and designs the project, discusses the rules of the contact pressure, the stress ratio of the pile and the soil, compares the p - s curves of one pile, the composite ground formed by one pile and the composite ground formed by two piles based on the in - situ plate loading test, evaluates the bearing capacity of the composite ground of the project
黃土地區的高等級公路建設中經常遇到濕陷性黃土問題，其病害類型主要是地基土受水浸濕后引起路基、橋臺、涵洞等的不均勻沉降，直接影響路基、構造物等的正常使用。針對此問題，本文依託甘肅讒口至蘭州柳溝河高速公路建設工程，對橋基灰土樁復合地基應用的可行性進行了深入分析，根據具體工程進行了合理的設計與計算，並配合現場靜載荷試驗及壓力盒實測數據，探討了基底應力分佈規律，樁土應力比，變形模量的變化關系，對比分析了單樁、單樁復合和雙樁復合的p ? s關系，對橋基灰土樁復合地基承載力進行了整體評價。 -
Construction technique for single track railway tunnel in saturated loess area
飽和性黃土質單線鐵路隧道施工技術 -
Research on the checking method of road base bearing capacity in loess area
黃土地區公路地基承載力驗算方法研究 -
Sediment sources and effects of vegetation on erosion control in the gully - hilly loess area in north china
黃土區小流域侵蝕泥沙來源與植被防止侵蝕作用研究 -
( 3 ) soil erosion assessing systems and evaluating water - soil safety models have been first raised in the stackpile of large opencast mine within loess area
（ 3 ）初次建立了我國黃土區大型露天礦排土場土壤水性致災因子指標體系和水土安全評價模型 -
Based on the test results of dynamic consolidation for the foundation of actual project, the influence of dynamic consolidation on soil ? s density, compressibility, collapsibility and so on is analyzed, and the project effect of dynamic consolidation on collapsible loess foundation is approached. at the same time, the effective influence depth is researched. lastly, the common calculation formulus of influence depth at home and abroad are assessed, and the quantitative range of influence coefficient for loess area in the western region of guanzhong is given
根據實際工程地基強夯處理的試驗資料，分析了強夯對土體密度、壓縮性、濕陷性等性質的影響，探討了強夯法處理濕陷性黃土地基的工程效果及有效影響深度，評價了目前國內外幾種常用的影響深度計算公式的適應性，提出了適用於關中西部黃土地區的影響系數及其定量取值范圍。 -
Abstract : the successful application of lime - soil compaction pile provides an economical and reliable method for ground treatment of high - storey building in loess area
文摘:灰土擠密樁的成功經驗，為黃土地區高層建築地基處理提供了一種既經濟又可靠的方法。 -
Analysis on lining cracks of highway tunnel in loess area
黃土公路隧道襯砌開裂分析 -
Seismic landslides hazard is encountered frequently in the loess area
摘要黃土地區極易形成地震滑坡災害。 -
Calculation for bearing capacity of single pile in falling loess area of shanbei
陜北濕陷性黃土地區單樁承載力計算 -
( 4 ) water - soil curing and using techniques of large opencast coal mine within loess area in our country have been divided into three types : water - soil safety techniques, water - soil conservation and water - soil recycling use techniques
（ 4 ）明確將我國黃土區大型露天謀礦水土整治和利用技術劃分為水土安全調控、表層巖土水土保持和水土資源化利用三個階段 -
In this paper, 8 - node isoparametric quadrilateral element is used to divide the soil and retaining structure. comparing to practical engineering, the numerical method - finite element method is used to analyze every behavior of deep foundation excavating and retaining in loess area
本文採用八結點四邊形等參元來離散土體與圍護結構，用有限元數值方法，對照實際工程，對黃土地區深基坑開挖與支護體系的各種性狀進行了分析。 -
On the basis of the loess distribution, engineering geology and specific properties of road use in gansu province, this paper divides traffic volume grade according to the conditions of transportation of all high - grade highways which are being built and have already finished. besides, it analyses the relativity of three different test methods, establishes the related relations, and divides their strength grade after measuring rebound module of subgrade of the representative high - grade highways in gansu loess area. furthermore, it recommends the common semi - rigid and asphalt concrete design parameters by comparing the experiment in doors to outdoors, and draws up the optimized design program aga - lq based on advanced genetic algorithm and solves the non - liner optimization design model of asphalt pavement construction by computer
本文基於甘肅黃土分佈、工程地質及路用特性研究，對該黃土地區在建和已建的全部高等級公路交通狀況進行了詳細調查和分析，劃分了交通量等級；對甘肅黃土地區代表性的高等級公路，利用三種不同方法實測了土基回彈模量，分析了各測試方法的相關性，建立了相關關系，對土基回彈模量進行了強度等級劃分；通過室內外試驗比較，推薦了常用的半剛性材料和瀝青混凝土設計參數值；利用計算機編制了基於改進遺傳演算法的優化設計程序aga ? lq ，並成功求解了瀝青路面結構非線性優化設計模型；最後經計算提出了甘肅黃土地區高等級公路瀝青路面典型結構，並編制了查詢圖庫軟體cx ? lq ，供設計單位直接選用，科學簡便地解決了甘肅黃土地區的路面設計問題。 -
Bearing capacity evaluation system of highway foundation in loess area based on gis
的黃土地區公路地基承載力評價系統 -
Study on soil erosion systems simulation of small watershed in loess area
黃土丘陵溝壑區小流域土壤侵蝕及其預報模型研究
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