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A platform for research: civil engineering, architecture and urbanism
High-position high-steep rockfall protection structure suitable for 8000KJ rockfall impact energy level
The invention discloses a high-position and high-steep rockfall protection structure suitable for the 8000 KJ rockfall impact energy level, and belongs to the field of rockfall protection. The high-position and high-steep rockfall protection structure comprises a protection net arranged on one side of an entrance and exit of a mountain tunnel or the slope side of a mountain, and the protection net is fixed to the ground through a plurality of supporting columns; the protective net is of a grid structure composed of a plurality of transverse NPR steel strands and a plurality of longitudinal NPR steel strands which are arranged in a criss-cross mode, the two ends of each transverse NPR steel strand penetrate through the supporting column located at the outermost end and then continue to extend, and the extending parts are anchored to the mountain slope or the ground after prestress is applied to the extending parts. According to the high-position and high-steep rockfall protection structure suitable for the 8000KJ rockfall impact energy level, the crisscrossed NPR steel strands are adopted to form the protection net, the yield elongation rate and the fracture elongation rate of the NPR steel strands are utilized, the rockfall impact protection energy level of a traditional passive protection net can be effectively broken through, and the safety performance of the passive protection net is improved. And the impact effect on collapse rockfall of high-position, high-steep and high-risk rock mass is remarkable.
本发明公开了适用8000KJ落石冲击能级的高位高陡落石防护结构，属于落石防护领域，包括设置于山区隧道进出口一侧或者山体坡面侧的防护网，防护网经多根支撑柱固定于地面上；防护网为由纵横交错的多束横向NPR钢绞线和多束纵向NPR钢绞线组成的网格结构，横向NPR钢绞线的两端穿过位于最外端的支撑柱后继续延伸，且延伸部分在施加预应力后锚固于山体坡面或者地面上。本发明采用上述结构的适用8000KJ落石冲击能级的高位高陡落石防护结构，采用纵横交错的NPR钢绞线组成防护网，利用NPR钢绞线的屈服延伸率和断裂延伸率，可有效突破传统被动防护网的落石冲击防护能级，对于高位高陡高危岩体崩塌落石冲击效果显著。
High-position high-steep rockfall protection structure suitable for 8000KJ rockfall impact energy level
The invention discloses a high-position and high-steep rockfall protection structure suitable for the 8000 KJ rockfall impact energy level, and belongs to the field of rockfall protection. The high-position and high-steep rockfall protection structure comprises a protection net arranged on one side of an entrance and exit of a mountain tunnel or the slope side of a mountain, and the protection net is fixed to the ground through a plurality of supporting columns; the protective net is of a grid structure composed of a plurality of transverse NPR steel strands and a plurality of longitudinal NPR steel strands which are arranged in a criss-cross mode, the two ends of each transverse NPR steel strand penetrate through the supporting column located at the outermost end and then continue to extend, and the extending parts are anchored to the mountain slope or the ground after prestress is applied to the extending parts. According to the high-position and high-steep rockfall protection structure suitable for the 8000KJ rockfall impact energy level, the crisscrossed NPR steel strands are adopted to form the protection net, the yield elongation rate and the fracture elongation rate of the NPR steel strands are utilized, the rockfall impact protection energy level of a traditional passive protection net can be effectively broken through, and the safety performance of the passive protection net is improved. And the impact effect on collapse rockfall of high-position, high-steep and high-risk rock mass is remarkable.
本发明公开了适用8000KJ落石冲击能级的高位高陡落石防护结构，属于落石防护领域，包括设置于山区隧道进出口一侧或者山体坡面侧的防护网，防护网经多根支撑柱固定于地面上；防护网为由纵横交错的多束横向NPR钢绞线和多束纵向NPR钢绞线组成的网格结构，横向NPR钢绞线的两端穿过位于最外端的支撑柱后继续延伸，且延伸部分在施加预应力后锚固于山体坡面或者地面上。本发明采用上述结构的适用8000KJ落石冲击能级的高位高陡落石防护结构，采用纵横交错的NPR钢绞线组成防护网，利用NPR钢绞线的屈服延伸率和断裂延伸率，可有效突破传统被动防护网的落石冲击防护能级，对于高位高陡高危岩体崩塌落石冲击效果显著。
High-position high-steep rockfall protection structure suitable for 8000KJ rockfall impact energy level
适用8000KJ落石冲击能级的高位高陡落石防护结构
ZHANG YUFANG (author) / YUAN KUN (author) / LI JIAN (author) / CUI JIAN (author) / LIU BO (author) / LIU MENGJIA (author) / FAN JIAWEI (author) / YANG ZHONGMIN (author) / SONG GUOZHUANG (author) / ZHOU WENJIAO (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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