Drainage and stabilization of the soil surrounding a tunnel of the Paris Underground Railway, by means of systematic injections of chemical products under pressure, in presence of selenitic ground-water.
Drainage and stabilization of the soil surrounding a tunnel of the Paris Underground Railway, by means of systematic injections of chemical products under pressure, in presence of selenitic ground-water.
Drainage and stabilization of the soil surrounding a tunnel of the Paris Underground Railway, by means of systematic injections of chemical products under pressure, in presence of selenitic ground-water.
Drainage and stabilization of the soil surrounding a tunnel of the Paris Underground Railway, by means of systematic injections of chemical products under pressure, in presence of selenitic ground-water.