邊坡人字形骨架防護(hù)骨架尖角設(shè)計(jì)研究
發(fā)布時(shí)間：2019-01-27 16:38
【摘要】：以廣東龍川~懷集高速公路骨架防護(hù)工程為依托,探討雨水在邊坡上的運(yùn)動(dòng)規(guī)律。通過(guò)對(duì)人字形骨架內(nèi)坡面薄層水流流速和邊坡排水能力進(jìn)行計(jì)算,對(duì)比分析不同尖角的人字形骨架的排水能力和工程量,得出如下結(jié)論:(1)土質(zhì)草皮邊坡匯水計(jì)算時(shí),由于土體的滲透和草皮阻流的影響,入滲率λ的確定較復(fù)雜,可將(I-λ)項(xiàng)簡(jiǎn)化為ψqp,t,以簡(jiǎn)化計(jì)算;(2)在順坡向間距和橫向間距一定的情況下,人字形骨架的排水槽排水能力隨尖角減小而增大,90°、75°、60°尖角人字形骨架排水能力變化量為9%~14%;(3)在順坡向間距和橫向間距一定的情況下,人字形骨架的工程量隨骨架尖角的減小而增加,90°、75°、60°尖角人字形骨架工程量變化量為10%~25%;(4)在其他條件滿足的情況下,人字形骨架尖角宜取較大值,人字形骨架尖角選取建議采用90°,在土質(zhì)較好的邊坡和半巖質(zhì)邊坡,可適當(dāng)增大尖角。
[Abstract]:Based on the skeleton protection project of Long Chuan ~ Huaiji Expressway in Guangdong Province, this paper discusses the movement law of Rain Water on the slope. Based on the calculation of the flow velocity and the drainage capacity of the slope in the herringbone framework, the drainage capacity and the engineering quantity of the herringbone skeleton with different sharp angles are compared and analyzed. The conclusions are as follows: (1) in the calculation of the confluence of soil grass slope, Due to the influence of soil permeability and turf flow resistance, the determination of infiltration rate 位 is more complicated. The term (I- 位) can be simplified to 蠄 qp,t, to simplify the calculation. (2) the drainage capacity of the herringbone is increased with the decrease of the sharp angle, and the drainage capacity of the herringbone with 90 擄, 75 擄and 60 擄is 9 / 14. (3) with the decreasing of the angle of the skeleton, the engineering quantity of the herringbone increases with the decrease of the angle of the skeleton, and the engineering quantity of the herringbone with 90 擄, 75 擄and 60 擄is 10 ~ 25. (4) if other conditions are satisfied, it is appropriate to take a larger value for the herringbone sharp angle, and 90 擄for the herringbone skeleton cusp, which can increase the sharp angle properly in the soil slope and the half-rock slope.
【作者單位】： 長(zhǎng)安大學(xué)公路學(xué)院;廣東省南粵交通龍懷高速公路管理中心龍連管理處;廣東省南粵交通仁博高速公路管理中心新博管理處;
【基金】：廣東省交通運(yùn)輸廳科技計(jì)劃項(xiàng)目,項(xiàng)目編號(hào)2014-02-006
【分類號(hào)】：U416.14
，
本文編號(hào)：2416466
[Abstract]:Based on the skeleton protection project of Long Chuan ~ Huaiji Expressway in Guangdong Province, this paper discusses the movement law of Rain Water on the slope. Based on the calculation of the flow velocity and the drainage capacity of the slope in the herringbone framework, the drainage capacity and the engineering quantity of the herringbone skeleton with different sharp angles are compared and analyzed. The conclusions are as follows: (1) in the calculation of the confluence of soil grass slope, Due to the influence of soil permeability and turf flow resistance, the determination of infiltration rate 位 is more complicated. The term (I- 位) can be simplified to 蠄 qp,t, to simplify the calculation. (2) the drainage capacity of the herringbone is increased with the decrease of the sharp angle, and the drainage capacity of the herringbone with 90 擄, 75 擄and 60 擄is 9 / 14. (3) with the decreasing of the angle of the skeleton, the engineering quantity of the herringbone increases with the decrease of the angle of the skeleton, and the engineering quantity of the herringbone with 90 擄, 75 擄and 60 擄is 10 ~ 25. (4) if other conditions are satisfied, it is appropriate to take a larger value for the herringbone sharp angle, and 90 擄for the herringbone skeleton cusp, which can increase the sharp angle properly in the soil slope and the half-rock slope.
【作者單位】： 長(zhǎng)安大學(xué)公路學(xué)院;廣東省南粵交通龍懷高速公路管理中心龍連管理處;廣東省南粵交通仁博高速公路管理中心新博管理處;
【基金】：廣東省交通運(yùn)輸廳科技計(jì)劃項(xiàng)目,項(xiàng)目編號(hào)2014-02-006
【分類號(hào)】：U416.14
，
本文編號(hào)：2416466
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