海河水利
海河水利
해하수리
HAIHE WATER RESOURCES
2015年
3期
51-55
,共5页
矿物成分%流变性%崩解%胀缩性%引水工程
礦物成分%流變性%崩解%脹縮性%引水工程
광물성분%류변성%붕해%창축성%인수공정
mineral composition%rheological property%disintegration%swell and shrink%water diversion project
宁夏中南部某引水工程隧洞围岩主要为白垩系、第三系泥质岩，属软岩或极软岩。为了解该软岩工程特性及其对工程建设的不利影响，采用室内试验、原位测试方法，并通过对工程区泥岩成份、胶结物及环境等因素的分析研究，初步查明泥岩的强度、流变、崩解、膨胀、声波特性及影响其特性的主要因素，并提出相应的工程对策原则。研究成果为工程设计和建设中采取行之有效的防护措施，抑制或减弱泥岩对工程的不利影响提供了依据。
寧夏中南部某引水工程隧洞圍巖主要為白堊繫、第三繫泥質巖，屬軟巖或極軟巖。為瞭解該軟巖工程特性及其對工程建設的不利影響，採用室內試驗、原位測試方法，併通過對工程區泥巖成份、膠結物及環境等因素的分析研究，初步查明泥巖的彊度、流變、崩解、膨脹、聲波特性及影響其特性的主要因素，併提齣相應的工程對策原則。研究成果為工程設計和建設中採取行之有效的防護措施，抑製或減弱泥巖對工程的不利影響提供瞭依據。
저하중남부모인수공정수동위암주요위백성계、제삼계니질암，속연암혹겁연암。위료해해연암공정특성급기대공정건설적불리영향，채용실내시험、원위측시방법，병통과대공정구니암성빈、효결물급배경등인소적분석연구，초보사명니암적강도、류변、붕해、팽창、성파특성급영향기특성적주요인소，병제출상응적공정대책원칙。연구성과위공정설계화건설중채취행지유효적방호조시，억제혹감약니암대공정적불리영향제공료의거。
Lithology around the headrace tunnel in central southern Ningxia is mainly mudstone of Cretaceous and Tertia?ry,belongs to extremely soft rock or soft rock. In order to understand the engineering properties of soft rock and its adverse impact on the construction,some laboratory tests and in-situ testing methods were used. By analyzing the mudstone compo?sition,cement and environmental factors in the project area,the characteristics of mudstone and the main factor of effect?ing characteristics are initially identified,such as strength,rheology,disintegration,swell and sound wave of mudstone. At last,the corresponding engineering measures principles are put forward. The research results provide a basis for taking effective protective measures during engineering and construction to suppress or weaken the adversely impact of mudstone.
