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某大跨度地下厂房蚀变岩防治措施与支护评价

Control Measures and Support Evaluation of Altered Rock in a Long-Span Underground Powerhouse
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摘要 岩体及构造带的蚀变,在地下干湿交替的环境和松弛条件下极易发生膨胀变形,导致岩土体强度低、性状差、物理力学参数降低,对大跨度地下厂房的开挖及稳定性存在不利影响。为了消除不良地质问题带来的隐患,可以通过对方案设计、地质预报、施工工艺、工程措施处理及地下水方面对其进行预防、治理和监测。文章以某地下厂房为案例,对上述工程地质问题的防治措施和工程处理效果进行了论述,希望能够对存在类似蚀变现象的不良工程地质问题的解决有一定的借鉴意义。 Alteration rock and tectonic belt,the underground dry-wet alternate easily happened under the condition of environment and relaxation expansion deformation,low rock mass strength properties are low physical and mechanical parameters is reduced,the excavation and the stability of the large span underground powerhouse is disadvantageous influence in order to eliminate the hidden trouble of the bad geological problems,can be based on the engineering measures to deal with construction technology scheme design geological forecast and groundwater on the prevention and monitoring.This paper discusses the prevention measures and treatment effects of the engineering geological problems mentioned above with the case of an underground plant in a certain place,hoping to provide some reference for the solution of similar adverse engineering geological problems with alteration phenomenon.
作者 田林 黄银伟 朱治峰 Tian Lin;Huang Yinwei;Zhu Zhifeng(Zhejiang Huadong Construction Engineering Co.,Ltd.,Hangzhou Zhejiang 310014)
出处 《工程技术研究》 2020年第13期244-245,共2页 Engineering and Technological Research
关键词 地下厂房 蚀变岩 蚀变工程 处理措施 支护评价 underground powerhouse alterated rocks alteration project treatment measure support the evaluation
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