884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 昆明理工大學(xué)， 昆明 650500； 2 中鐵二院昆明勘察設(shè)計(jì)研究院有限責(zé)任公司， 昆明 650200）

［摘要］目前，落石災(zāi)害已成為威脅道路和橋梁等基礎(chǔ)設(shè)施的主要災(zāi)害。結(jié)合落石運(yùn)動(dòng)特點(diǎn)，綜述了傳統(tǒng)鋼筋混凝土棚洞和柔性鋼棚洞在落石防護(hù)方面的應(yīng)用及研究現(xiàn)狀、基本構(gòu)成、傳力機(jī)理等，并結(jié)合各自的優(yōu)缺點(diǎn)及存在問題，探討了今后的發(fā)展趨勢(shì)。

［關(guān)鍵詞］突發(fā)性； 隨機(jī)性; 沖擊力; 柔性防護(hù)網(wǎng)

中圖分類號(hào)： TU312+.1 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  1002-848X(2016)S1-0249-04

Summarize about traditional shed hole compared with flexible shed hole in application research

Jiang Jiao1, Yang Xiang2, Luo Yunfei2, Zhou Yitang1

(1 Kunming University of Science and Technology, Kunming 650500, China; 

2 Kunming Survey, Design and Research Institute Co., Ltd. of CREEC, Kunming 650200, China)

Abstract: At present, rockfall hazard has become the main threat of disaster to the roads and bridges. Combining with the characteristics of rockfall movement, the traditional reinforced concrete shed hole and flexible steel shed hole in rockfall protection application, research status, force transmission mechanism and basic composition were reviewed. Combining with their respective advantages and disadvantages, their development trends in the future were discussed.

Keywords: abruptness; randomness; impact force; flexible protection net

作者簡(jiǎn)介：江蛟，碩士研究生，Email：1016981620@qq.com。