草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2015年
4期
23-26
,共4页
安全系数%坡度%滑坡体尺寸%根-土面积比
安全繫數%坡度%滑坡體呎吋%根-土麵積比
안전계수%파도%활파체척촌%근-토면적비
Safety parameter%grade%size of landslide%area ration of roots and soil
为研究草本植物根系对边坡浅层稳定性的影响，在假设滑坡体为长方体的条件下，通过对植物根系加固边坡的力学原理进行分析，推导了植物根系对边坡浅层稳定性的安全系数公式，并计算分析了坡度、滑坡体尺寸以及根土面积比对边坡稳定性的影响。结果表明：随着边坡坡度及滑坡体尺寸的增加，边坡的稳定系数将减小。并且，植物护坡的坡体安全系数要大于无防护坡体的安全系数。随着根-土面积比的增大，坡体的稳定系数逐渐增加，说明植物根系能增加边坡的稳定性。
為研究草本植物根繫對邊坡淺層穩定性的影響，在假設滑坡體為長方體的條件下，通過對植物根繫加固邊坡的力學原理進行分析，推導瞭植物根繫對邊坡淺層穩定性的安全繫數公式，併計算分析瞭坡度、滑坡體呎吋以及根土麵積比對邊坡穩定性的影響。結果錶明：隨著邊坡坡度及滑坡體呎吋的增加，邊坡的穩定繫數將減小。併且，植物護坡的坡體安全繫數要大于無防護坡體的安全繫數。隨著根-土麵積比的增大，坡體的穩定繫數逐漸增加，說明植物根繫能增加邊坡的穩定性。
위연구초본식물근계대변파천층은정성적영향，재가설활파체위장방체적조건하，통과대식물근계가고변파적역학원리진행분석，추도료식물근계대변파천층은정성적안전계수공식，병계산분석료파도、활파체척촌이급근토면적비대변파은정성적영향。결과표명：수착변파파도급활파체척촌적증가，변파적은정계수장감소。병차，식물호파적파체안전계수요대우무방호파체적안전계수。수착근-토면적비적증대，파체적은정계수축점증가，설명식물근계능증가변파적은정성。
To study the effect of herbaceous plant roots on slope stability under the condition assuming the landslide as rectangle,the mechanics principle of slope reinforced by herbaceous plant roots were analyzed,and the plant roots on the stability of shallow slope safety coefficient formula was deduced,and then the influence of slope on grade,size of landslide,area ration of roots with soil was calculated and analyzed.The results showed that with the increase of grade and the size of landslide,the stability factor of slope decreased.And the slope safety coefficient with plant protection was greater than the safety factor without plant protection.With the in-crease of the area of root and soil,the stability of the slope coefficient increased.
