FIELD: underground structure building, particularly for forming underground tunnels and collectors.
SUBSTANCE: method involves excavating ground with cutting tool; regulating kentledge pressure in rotor chamber and backfilling annular tubing space. Kentledge pressure is automatically adjusting with that of enclosing ground exerting pressure on shield case by means of membranes. The membranes are installed in shield case and are permanently subjected to actual enclosing ground pressure. Backfilling operation is performed through end part of shield case immediately after shield case movement.
EFFECT: prevention of ground and object deformation in tunnel boring machine movement area, increased backfill layer elasticity and tunnel lining impermeability.
4 cl, 6 dwg
| Title | Year | Author | Number |
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| SHIELD FOR MAKING TUNNEL BY OPEN-CUT METHOD | 0 |
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SU641107A1 |
| TUNNELING UNIT | 2021 |
|
RU2765746C1 |
