Device and method for preventing gushing of water-rich stratum and improving shield tunneling efficiency
A water-rich formation and gushing prevention technology, which is applied to mining equipment, earthwork drilling, mining equipment, etc., can solve problems such as shield machine flooding, tunnel collapse, prone ground subsidence, casualties, etc., to speed up dredging slag effect, reduce the workload of slag removal, and reduce the effect of cleaning time
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[0050] An anti-swelling shield tunneling device for water-rich formations, comprising a belt conveyor, a screw conveyor located above the belt conveyor, a water collection tank and a side row water collection tank located at the bottom of the belt conveyor.
[0051] A gushing-proof shield tunneling method in a water-rich stratum, comprising the following steps:
[0052] S1: Drainage in the soil silo to establish solid soil pressure
[0053] 1. After the assembly of the lower segment is completed, the mud and slag in the earth bin of the shield machine will be deposited to form solid soil pressure at the bottom of the earth bin. When the water content in the bin is high (accounting for 2 / 3), use the earth bin to separate Plate drain ball valve to discharge water,
[0054] 2. First open the 3 and 9 o'clock drainage ball valves to release water, discharge clear water or muddy water with less sludge content, reduce the water level in the soil bin, and then open the 5 and 7 o'cloc...
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