铁道标准设计
鐵道標準設計
철도표준설계
RAILWAY STANDARD DESIGN
2014年
1期
24-27
,共4页
郝国林%杨有海%刘辉%吕晓星
郝國林%楊有海%劉輝%呂曉星
학국림%양유해%류휘%려효성
太中银铁路%沙害%治理%风速%粗糙度%输沙量
太中銀鐵路%沙害%治理%風速%粗糙度%輸沙量
태중은철로%사해%치리%풍속%조조도%수사량
Taiyuan-Zhongwei-Yinchuan Railway%wind-blown sand disaster%control%wind velocity%degree of roughness%sediment discharge
通过对太中银铁路梅花井段的沙害调查及对当地气候特点等分析，建立“因地制宜，因害设防，就地取材，远阻近固，固阻结合，工程措施与植物措施相结合，植物措施为根本冶的防沙治沙原则。采取玉米秸秆高立式阻沙栅栏的阻沙措施及其与尼龙格状防沙网相结合的固阻结合措施，以及草障植物固沙带措施治理沙害。通过含水率、风速、粗糙度、输沙量、蚀积量等观测，以及对植物生长状况调查，分析评价了该区段防沙体系的防沙效果。测试结果表明，实施治理措施后沙地地表粗糙度有所提高、风速有所降低、风蚀减弱，形成了较为稳定的植物生长环境，为植物生长提供了较好的条件，植被覆盖度明显提高，沙害治理效果显著。
通過對太中銀鐵路梅花井段的沙害調查及對噹地氣候特點等分析，建立“因地製宜，因害設防，就地取材，遠阻近固，固阻結閤，工程措施與植物措施相結閤，植物措施為根本冶的防沙治沙原則。採取玉米秸稈高立式阻沙柵欄的阻沙措施及其與尼龍格狀防沙網相結閤的固阻結閤措施，以及草障植物固沙帶措施治理沙害。通過含水率、風速、粗糙度、輸沙量、蝕積量等觀測，以及對植物生長狀況調查，分析評價瞭該區段防沙體繫的防沙效果。測試結果錶明，實施治理措施後沙地地錶粗糙度有所提高、風速有所降低、風蝕減弱，形成瞭較為穩定的植物生長環境，為植物生長提供瞭較好的條件，植被覆蓋度明顯提高，沙害治理效果顯著。
통과대태중은철로매화정단적사해조사급대당지기후특점등분석，건립“인지제의，인해설방，취지취재，원조근고，고조결합，공정조시여식물조시상결합，식물조시위근본야적방사치사원칙。채취옥미갈간고입식조사책란적조사조시급기여니룡격상방사망상결합적고조결합조시，이급초장식물고사대조시치리사해。통과함수솔、풍속、조조도、수사량、식적량등관측，이급대식물생장상황조사，분석평개료해구단방사체계적방사효과。측시결과표명，실시치리조시후사지지표조조도유소제고、풍속유소강저、풍식감약，형성료교위은정적식물생장배경，위식물생장제공료교호적조건，식피복개도명현제고，사해치리효과현저。
By means of wind-blown sand disaster investigation and local climate analysis, a comprehensive sand controlling principle for the Meihuajing section of Taiyuan-Zhongwei-Yinchuan Railway was established, including: adjusting measures to local condition, taking control measure corresponding to actual damage, using local material, stopping the distant wind-blown sand and stabilizing the sandy land nearby, combining the stopping measures with the stabilizing measures, combining the engineering measures with the vegetation measures, and taking vegetation measures as the priority. And then, the high-standing sand break made from corn stalks and nylon meshes was employed as the stopping-stabilizing composite measure, and the sand-stabilizing zone made from grass and vegetation was employed as the stabilizing measures. Further on, through observation on the moisture content, wind velocity, degree of roughness, sediment discharge, erosion and deposition volume, etc. , and through investigation on vegetation growth circumstance, the effect of the sand control system in this railway section was analyzed and evaluated. The observation results show that: after using above-mentioned controlling measures, to some extent and on the surface of the sandy land, the degree of roughness has been improved, the wind velocity has decreased, and the erosion and deposition of wind has weakened. Moreover, these control measures have provided a good circumstance for plant growth, enabling the vegetation coverage to increase obviously with significant effect on the controlling of wind-blown sand disaster.
