| 1. | Experimental measurement of air flow velocity fluctuation of wind - sand flux
风沙流中风速脉动的实验测量 |
| 2. | Effect of thermal diffusion and electrostatic force on the evolution of wind - blown sand flow
热扩散和电场对风沙流发展过程的影响 |
| 3. | Simulation on abated effect of nylon net with different porosities on wind - blown sand in wind tunnel
不同孔隙度尼龙网对风沙流减弱作用的风洞模拟 |
| 4. | The coupled model of wind velocity - sand movement - electric field and its effects on the windblown sand cloud
电多场耦合模型及其对风沙流结构的影响 |
| 5. | Our research observes the wind - sand flow phenomena in outside field . then establish a wind - blown - sand flow experimental set and reformulate the phenomena in lab
本文建立了风沙流实验装置，对自然界中的风沙流动现象进行野外观测和实验室模拟。 |
| 6. | The quality of sand incipience involved with many kinds of parameters , such as incipient velocity , incipient angle etc . our research depends on the advantage of cross - knowledge and makes a research on this subject by gas - solid hydromechanics theory and ptv measure technology
本论文发挥交叉学科的优势，采用气固两相流体力学理论和ptv测量技术研究这一现象，从新的角度认识沙粒起动和风沙流结构，为风沙流动的研究打开了新的思路。 |
| 7. | A recommend value of appropriate roadbed height is put forward according to the sand dune type and the highway grade , make investigation to the sand harm and other problems of built highways in desert areas gathering the related materials of present day highways , and then make comprehensive and systematic statistics to related data and racious factors which affect the roadbed height ; analy the suitable roadbed height for the windblown sand drift passes through smoothly according to the open country windblown sand field test ; test and verify the outcome according to indoor wind tunnel test ; finally a appropriate recommend roadbed height value will be put forward for different grade highways in different areas , which is according to the analysis of roadbed stability the roadbed height economic analysis and different use requirement to different grade highways
收集现有沙漠公路的有关资料，对全国已建沙漠公路进行沙害及其他病害调查，对相关数据和影响沙漠公路路基高度的各种因素进行综合系统地统计分析；通过野外风沙流场测定，分析适宜风沙流顺利通过的路基高度；通过室内风洞试验进行验证；结合路基稳定性分析、路基高度的经济性分析，考虑不同等级公路的使用要求，最终提出不同地区不同等级沙漠公路路基填土高度的合理高度建议值。 |
| 8. | In the extended experiment we modulate the sand grain diameter and air humidity to contrast with the natural result , discuss the effect of diameter and humidity on sand incipience , propose some ideas and methods to control sand transportation and formulation of wind - blow - sand flow
本文还拓展了实验条件，通过调整沙粒粒径配比和空气湿度，完成了对比性实验，并进一步探讨了粒径和湿度对沙粒起动的影响，提出了在沙漠工程中控制风沙流形成和沙粒输运的思路和方法。 |
| 9. | The research test of this discussion as follows : making investigation and research to overseas related materials ; make investigation to built highways in desert areas , dozens of routes and nearly 100 road sections have been surveyed , among them two highways have been taken as the chief investigation objects , they are " 210 national highways - first grade highways from bao tou to dong sheng " and " the section of nei meng a la shan meng s307 from shang de to meng gen " ; the relationship between windblown sand drift and the roadred height wind tunnel test ; make investigation to the tested road sections and subengineerings then make statistics and study according to the test outcome ; the stability analysis of different roadbed height ; the analysis of roadbed economy
本课题的研究工作包括：对国外相关资料的调研分析；对已建沙漠地区公路进行调查、观测了十余条线路，近百段路段，以‘ 210国道包头至东胜一级公路’ 、 ‘内蒙阿拉善盟s307尚德至孟根段’为主要调查对象；风沙流路基高度的关系、风洞试验；对调查路段及依托工程调查、观测结果统计研究；不同高度下路基稳定性分析；路基经济性分析；按照沙丘类型及公路等级提出路基合理高度推荐值。 |
| 10. | The main purpose of this discussion is to det ermine the appropriate roadbed earthfill height according to the degree of sandburry , windblown sand drift test , wind tunnel test , windbed stability , road economy and traffic accident analysis . the appropriate roadbed earthfill height is one of vital factors in preventing highways from the harm of sand
本课题研究的主要目的是沙漠公路在地理地貌、植被地质、沙源、风速强度等因素的影响下对公路形成的沙埋和风蚀危害，结合公路沙埋、风沙流实验、风洞实验、路基稳定性、道路经济性、交通事故分析，确定路基的合理填土高度。 |
