Sealing off formation having pores in civil engineering or architectural construction work

Abstract

Abstract THIS INVENTION RELATES TO TECHNIQUE OF PLUGGING FORMATIONS IN CIVIL ENGINEERING AND CONSTRUCTION, REINFORCED UNDERGROUND STRUCTURE AND UNDERGROUND STRUCTURE REQUIRED FOR STRENGTHENING THE GROUND THEREOF, WHICH MAY BE EFFECTIVELY UTILIZED IN PLUGGING OR IN STRENGTHENING UNSTABLE GROUND IN SEALING-OFF POINTS OF WATER LEAKAGE OR OIL LEAKAGE IN CIVIL ENGINEERING AND CONSTRUCTION, IN PREVENTING GAS LEAKS IN SOILS OR IN CONSTRUCTION, OR IN INCREASING BEARING CAPACITIES OF PULL-OUT OR PUSH-IN PILES TO BE CONSTRUCTED. THUS, THE INVENTION IS INTENDED TO PROVIDE A TECHNIQUE FOR PLUGGING FORMATIONS HAVING INTERSTICES AND A TECHNIQUE FOR COMPACTING FORMATIONS BY FILLING INTERSTICES WITH A SOLIDIFIED SUBSTANCE AND ALSO PROVIDE A REINFORCED GROUND STRUCTURE AND AN UNDERGROUND STRUCTURE FOR REINFORCING THE GROUND, CHARACTERIZED IN THAT A FLUIDAL SUBSTANCE, SUCH AS AN ISOCYANATE COMPOUND, WHICH UPON COMING, INTO CONTACT WITH WATER, REACTS THEREBY TO PRODUCE WATER-INSOLUBLE SOLIDIFIED SUBSTANCE AND LIBERATING A GAS, IS FORCED TO BE PRESENT IN THE INTERSTICES IN FORMATIONS SUCH AS WATER LEAKAGE REGIONS IN CIVIL ENGINEERING AND CONSTRUCTION AND A GROUND OR WEAK GROUND WHERE WATER LEAKAGE OR WATER SEEPAGE IS EXPECTED, SO THAT IT REACTS WITH THE WATER AND THE RESULTING INSOLUBLE SOLIDIFIED SUBSTANCE IS ALLOWED TO BE INTIMATELY BONDED TO THE SURFACES OF THE INTERSTICES UNDER THE PRESSURE OF THE LIBERATED GAS, THEREBY SEALING-OFF THE INTERSTICES EASILY AND EFFECTIVELY.

Inventors

• 👤 Sadao Nakade
• 👤 Hirosuke Kubota
• 👤 Kuniyoshi Sakane

Bibliographic Details