| 刘伯俊,陈雯静,杨远波,陈月洪,任松,毕婧桐.高速沿线危岩带冲击演化特性及防护方案优化研究[J].矿产勘查,2026,17(S1):257-265 |
| 高速沿线危岩带冲击演化特性及防护方案优化研究 |
| Research on the impact evolution characteristics and protection scheme optimization of dangerous rock zones along highways |
| 投稿时间：2026-03-09 修订日期：2026-05-12 |
| DOI：10.20008/j.kckc.2026S1029 |
| 中文关键词: 危岩崩塌 冲击轨迹 能量演化 防护方案优化 生态红线区 |
| 英文关键词: rockfall impact trajectory energy evolution protection scheme optimization ecological red line area |
| 基金项目:本文受国家自然科学基金（51774057、52074048）资助。 |
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| 中文摘要: |
| 为解决生态红线区邻近敏感交通设施的复杂危岩带防护难题，本文以W15洞子岩29处危岩体为研究对象，采用RocPro3D数值模拟与蒙特卡洛随机模拟相结合的方法，系统分析危岩冲击轨迹、能量演化特性及原防护方案失效机制。研究表明：危岩冲击能量跨度75.67~99180 kJ，弹跳高度0.249~22.87 m，52.56%威胁国道、39.29%威胁高架桥；防护失效分为“高位越网”“能量超限”及“高能量-高弹跳耦合”三类机制。基于此提出“二次防护+高位拦截+精准破碎”综合优化方案，通过增设RXI-200型SNS被动防护网及精准破碎控制，使国道威胁率降至25.71%、高架桥威胁率降至22.14%，最终实现全范围有效拦截。建立的“动力学量化-失效分类-差异化优化”技术路线，为生态红线区复杂地形危岩灾害治理提供了科学依据，对类似工程具有重要参考价值。 |
| 英文摘要: |
| To address the protection challenge of complex rockfall zones adjacent to sensitive transportation facilities in ecological red line areas， this study focused on 29 dangerous rock masses in the W15 Dongziyan rockfall zone. Combining RocPro3D numerical simulation and Monte Carlo random simulation， the impact trajectory， energy evolution characteristics， and failure mechanism of the original protection scheme were systematically analyzed. The results show that the impact energy of rockfalls ranges from 75.67 kJ to 99180 kJ， with a bounce height of 0.249 m to 22.87 m. 52.56% of rockfalls threaten the national highway， and 39.29% endanger the viaduct. The protection failures are classified into three mechanisms： "high-position over-netting"， "energy exceeding limit"， and "high-energy-high-bounce coupling". A comprehensive optimization scheme of "secondary protection + high-position interception + precise crushing" was proposed. By adding RXI-200 type SNS passive protection nets and implementing precise crushing control， the threat rate of the national highway was reduced to 25.71% and that of the viaduct to 22.14%， ultimately achieving full-range effective interception. The established technical route of "dynamic quantification-failure classification-differentiated optimization" provides a scientific basis for rockfall disaster control in complex terrain of ecological red line areas and has important reference value for similar projects. |
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