Experimental method and device for measuring influence of split grouting on stability of tunnel face

The invention relates to an experimental method and device for measuring the influence of split grouting on the stability of a tunnel face, and the device is characterized in that the panel of an experimental model box body (1) is provided with a cavity which can be placed in a tunnel built-in plate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAO SONG, TAN ZHONGSHENG, LEI SHENGXIANG, DING ZHENGQUAN, HUANG MINGLI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to an experimental method and device for measuring the influence of split grouting on the stability of a tunnel face, and the device is characterized in that the panel of an experimental model box body (1) is provided with a cavity which can be placed in a tunnel built-in plate (2); a tunnel-shaped grouting plate (3) is mounted on the tunnel built-in plate (2), and a plurality of reserved grouting holes (31) capable of extending into a grouting pipe in a grouting system are formed in the tunnel-shaped grouting plate (3); a grouting plate baffle (4) is mounted on the outerside of the tunnel-shaped grouting plate (3) and closely attached to the tunnel built-in plate (2); and a top plate (7) is provided with a data line preformed hole (71) through which a data line connected with a monitoring system passes. When the device is used, soil sample adding is completed, the tunnel grouting plate baffle (4) is dismounted for split grouting, and data are collected; the tunnel-shaped grouting plate