subsurface adj. 表面下的,液面下的;地下的,水面下的。 n. 地面下[水面下]的部分〔巖石,土壤,水層等〕。
drainage n. 1.排水,放水;排水法;逐漸流出。 2.下水道;排水設(shè)備,排水系統(tǒng)。 3.水系,排水區(qū)域,流域。 4.陰溝水,(排出的)污水。 5.【醫(yī)學(xué)】引流,導(dǎo)液(法)。 drainage work 排水工程。 drainage and irrigation equipments 排灌設(shè)備。
The research of pavement subsurface drainage system in the seasonal freezing region 季節(jié)性冰凍地區(qū)路面結(jié)構(gòu)內(nèi)部排水系統(tǒng)淺論
Standard specification for circular - knit geotextile for use in subsurface drainage applications 地下排水設(shè)施用圓形織法的土工織物的標(biāo)準(zhǔn)規(guī)范
Analysis of spatial variability of soil characteristics and crop yield under subsurface drainage 暗管排水條件下土壤特性和作物產(chǎn)量的空間變異性分析
Standard specification for 12 to 60 in . 300 to 1500 mm annular corrugated profile - wall polyethylene pipe and fittings for gravity - flow storm sewer and subsurface drainage applications 自流式雨水管和地下排水裝置用12至60英寸300 to 1500 mm環(huán)形波紋狀異型壁聚乙烯管和配件的標(biāo)準(zhǔn)規(guī)范
Based on the construction of the atpb test section on weifu road in kaifeng , henan , some construction experiences have been summarized to ensure the drainage effect of subsurface drainage system 基于河南開封尉扶路的瀝青穩(wěn)定碎石排水基層試驗路的修筑,通過對現(xiàn)場攤鋪碾壓的施工控制,進一步積累了施工經(jīng)驗。
Finally , this paper brings forward the mix integrated design method of asphalt treated permeable material incorporating the results of structure analyses and tests . and the rational proposal and requirement for pavement subsurface drainage system of test road is suggested 結(jié)合結(jié)構(gòu)分析與室內(nèi)試驗分析的結(jié)果,提出了瀝青穩(wěn)定碎石排水層混合料的綜合設(shè)計方法,并實際運用于試驗路的結(jié)構(gòu)設(shè)計和排水系統(tǒng)設(shè)計。
The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands , irrigation induced soil salinity , subsurface drainage for agriculture ( horizontal and vertical ) , reuse of groundwater , ground - water hydraulics , ( geo ) hydrology , rainfall and surface runoff relations , reclamation and improvement of water logged saline , salty , sodic alkaline , and acid sulphate soils , plant growth , crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions 描述:探討農(nóng)業(yè)耕地的水澇問題;灌溉導(dǎo)致的土壤鹽堿化;地表灌溉;地下水的再利用;地下水水力學(xué);雨水與水流失的關(guān)系;淺地表排水;土壤開墾及水澇,酸性,堿性土壤的改良;片段線形回歸和累積頻數(shù)分布的統(tǒng)計分析等。
It is commonly recognized that subsurface drainage system can improve pavement performance and extend service life . as an essential part of subsurface drainage system , the layer setting and characteristics of asphalt treated permeable material directly affect the performance of subsurface drainage system , which is lucubrated in this paper . based on the typical semi - rigid pavement without permeable layer , using multilayer elastic system program , rational pavement structure with permeable layer at different locations is first analyzed 本文以高等級公路瀝青路面的典型結(jié)構(gòu)形式作為未設(shè)排水層的路面結(jié)構(gòu)原型,通過不同的設(shè)置層位分析對排水層的回彈模量和厚度的要求,探討設(shè)置排水層的路面結(jié)構(gòu)的一些結(jié)構(gòu)參數(shù)適宜的取值范圍,并在此基礎(chǔ)上運用灰色系統(tǒng)關(guān)聯(lián)分析方法,對不同設(shè)置層位的路面結(jié)構(gòu)的技術(shù)指標(biāo)進行比較分析,得出較優(yōu)的層位設(shè)置方案。