水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2015年
3期
183-187
,共5页
岩溶隧道%释能降压%溶腔%爆破揭示
巖溶隧道%釋能降壓%溶腔%爆破揭示
암용수도%석능강압%용강%폭파게시
karst tunnel%energy releasing and pressure reducing%karst cavity%blasting revealment
云雾山隧道是宜万铁路八座一级风险隧道之一，岩溶发育强烈，溶洞、暗河、漏斗及岩溶洼地等岩溶现象多见，施工风险极高。采用释能降压工法释放溶腔所存储的能量，降低水压力对隧道的稳定性影响，大大减小了施工风险。针对云雾山隧道的特点，利用地质预报技术锁定溶腔边界，制定专项精确爆破揭示方案，通过水量水压监测分析发现，溶腔介质的高压风险得到解除，达到了预期效果。
雲霧山隧道是宜萬鐵路八座一級風險隧道之一，巖溶髮育彊烈，溶洞、暗河、漏鬥及巖溶窪地等巖溶現象多見，施工風險極高。採用釋能降壓工法釋放溶腔所存儲的能量，降低水壓力對隧道的穩定性影響，大大減小瞭施工風險。針對雲霧山隧道的特點，利用地質預報技術鎖定溶腔邊界，製定專項精確爆破揭示方案，通過水量水壓鑑測分析髮現，溶腔介質的高壓風險得到解除，達到瞭預期效果。
운무산수도시의만철로팔좌일급풍험수도지일，암용발육강렬，용동、암하、루두급암용와지등암용현상다견，시공풍험겁고。채용석능강압공법석방용강소존저적능량，강저수압력대수도적은정성영향，대대감소료시공풍험。침대운무산수도적특점，이용지질예보기술쇄정용강변계，제정전항정학폭파게시방안，통과수량수압감측분석발현，용강개질적고압풍험득도해제，체도료예기효과。
Yunwushan tunnel is one of the eight primary risk tunnels of Yi -Wan Railway ,there is a fast growth of karst development with lots of karst caves ,rivers ,funnels and pit holes ,all of which presents a high construction risk .Here , energy releasing and pressure reducing method was adopted to reduce the influence of the stored energy and the water pressure in the karst cavities on the tunnel stability ,which greatly diminished the construction risk .In the light of the characteristics of the Yunwushan tunnel ,the geological forecast technology was used to lock the boundaries of the karst cavities ,in order to make specific accurate plans of blasting revealment .According to the analysis of the monitored water yield and water pressure ,it was found that the high risk of karst cavity had been lifted ,and the expected effect was achieved .
