岩石力学与工程学报
巖石力學與工程學報
암석역학여공정학보
CHINESE JOURNAL OF ROCK MECHANICS AND ENGINEERING
2014年
11期
2341-2350
,共10页
地下工程%地下厂房洞室群%施工期%快速监测%分析评价体系
地下工程%地下廠房洞室群%施工期%快速鑑測%分析評價體繫
지하공정%지하엄방동실군%시공기%쾌속감측%분석평개체계
underground engineering%underground caverns group%construction period%rapid monitoring%analysis and evaluation system
由于西南地区典型的高山峡谷地形地貌特征和区域强烈的“高地应力”的构造动力条件影响，水电站超大型地下洞室群面临的工程复杂性和难度超出现行经验认知。随着超大型地下厂房洞室群安全监测工程规模的不断扩大，利用现场实测的大量监测数据，借助现代化的监测软件系统，构建西南地区超大型地下厂房洞室群施工快速监测分析评价体系，并利用该体系对洞室围岩稳定进行分析评价，以实现地下厂房洞室群的施工过程动态设计，保证地下厂房洞室群的围岩稳定和运行安全。在分析评价体系的研究中，通过大量监测数据的统计分析，对围岩稳定的评价指标进行研究，拟定5个位移评价指标和5个支护荷载评价指标，并将评价指标的分级与围岩稳定分级相关联，实现地下厂房洞室群围岩稳定的快速评价；通过建立的评价体系流程应用于后续在建工程中，取得了不错的效果，可进行推广应用。
由于西南地區典型的高山峽穀地形地貌特徵和區域彊烈的“高地應力”的構造動力條件影響，水電站超大型地下洞室群麵臨的工程複雜性和難度超齣現行經驗認知。隨著超大型地下廠房洞室群安全鑑測工程規模的不斷擴大，利用現場實測的大量鑑測數據，藉助現代化的鑑測軟件繫統，構建西南地區超大型地下廠房洞室群施工快速鑑測分析評價體繫，併利用該體繫對洞室圍巖穩定進行分析評價，以實現地下廠房洞室群的施工過程動態設計，保證地下廠房洞室群的圍巖穩定和運行安全。在分析評價體繫的研究中，通過大量鑑測數據的統計分析，對圍巖穩定的評價指標進行研究，擬定5箇位移評價指標和5箇支護荷載評價指標，併將評價指標的分級與圍巖穩定分級相關聯，實現地下廠房洞室群圍巖穩定的快速評價；通過建立的評價體繫流程應用于後續在建工程中，取得瞭不錯的效果，可進行推廣應用。
유우서남지구전형적고산협곡지형지모특정화구역강렬적“고지응력”적구조동력조건영향，수전참초대형지하동실군면림적공정복잡성화난도초출현행경험인지。수착초대형지하엄방동실군안전감측공정규모적불단확대，이용현장실측적대량감측수거，차조현대화적감측연건계통，구건서남지구초대형지하엄방동실군시공쾌속감측분석평개체계，병이용해체계대동실위암은정진행분석평개，이실현지하엄방동실군적시공과정동태설계，보증지하엄방동실군적위암은정화운행안전。재분석평개체계적연구중，통과대량감측수거적통계분석，대위암은정적평개지표진행연구，의정5개위이평개지표화5개지호하재평개지표，병장평개지표적분급여위암은정분급상관련，실현지하엄방동실군위암은정적쾌속평개；통과건립적평개체계류정응용우후속재건공정중，취득료불착적효과，가진행추엄응용。
The typical geomorphic features of high mountains and deep canyons and the regional high geostress conditions lead to the engineering complexity and the difficulty of construction of the large-scale underground cavern groups for hydropower stations beyond the scope of present knowledge. Utilizing the massive monitored data from the safety monitoring with the scale in ever expansion,an analysis and evaluation system of the rapid monitoring of large-scale underground caverns in the Southwest China was established by means of the monitoring softwares. The evaluation of the stability of surrounding rock of caverns and the design of the construction process of cavern group of the underground powerhouse can be carried out with the system,so as to ensure the stability of surrounding rock and the safety operation of the underground caverns. Through the statistical analysis of a large number of monitored data,five displacement evaluation indices and five supporting load evaluation indices were proposed to monitor the stability of surrounding rock in the system. Relating the grading of evaluation indices for the grading of surrounding rock stability,the stability evaluation of the surrounding rock in underground caverns can be obtained rapidly. The evaluation system was applied to the subsequent construction of caverns and was proved appropriate.
