Bin filling method under-pressure bin opening method suitable for deeply-buried water-rich soft stratum

The invention provides an under-pressure bin opening method suitable for a deeply-buried water-rich soft stratum through a bin filling method. The under-pressure bin opening method comprises the following steps that double-liquid slurry is injected into a fifth-ring segment, a sixth-ring segment and...

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Main Authors LI WENBO, ZHAO ZHIGANG, JIN PING, ZHAO SUFEI, HE HANG, WANG JIANPENG, YAN JUN, HAN FUFEI, ZHANG QIANG, CHU TAO, DENG NENGWEI, ZHAO LEIYU, LU GUANGDONG, ZHU ZHENSHENG, TIAN GUANGJI
Format Patent
LanguageChinese
English
Published 31.10.2023
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The invention provides an under-pressure bin opening method suitable for a deeply-buried water-rich soft stratum through a bin filling method. The under-pressure bin opening method comprises the following steps that double-liquid slurry is injected into a fifth-ring segment, a sixth-ring segment and a seventh-ring segment to seal rings; mortar is mixed, and the storage equipment is filled with the mortar; the shield tunneling machine is propelled forwards; pressure-maintaining gas is adjusted upwards, slag is discharged through a screw conveyor, and water is discharged through a soil bin wall ball valve; bentonite is injected into a radial hole of the anterior shield, and water glass is synchronously injected through a three-way ball valve; a phosphoric acid solution and a water glass solution are injected into a grouting hole of the inverted three-ring segment and a radial hole of a shield tail; the interior of the soil bin is continuously grouted, when the upper soil pressure is close to the preset pressure
Bibliography:Application Number: CN202311149692