BOREHOLE GROUTING INSTALLATION METHOD FOR INSTALLING BOREHOLE SEISMOMETER USING INJECTION PIPE

摘要

PURPOSE: A bore hole grouting construction method using an injection pipe for installing a bore hole seismograph is provided to lower a construction cost and to improve work efficiency by simply installing a bore hole seismograph using an injection pipe instead of a grouting device. CONSTITUTION: A bore hole grouting construction method comprises the following steps: excavating a bore hole(S41); installing an outer casing inside the bore hole(S42); installing an injection pipe in the outer side of an inner casing(S43); inserting the inner casing installed with the injection pipe into the outer casing(S44); injecting a grout material by the injection pipe in the upper side of the bore hole for performing a grouting work(S45); and installing a seismic sensor inside the inner casing and performing a finishing work(S46). [Reference numerals] (S41) Excavate a bore hole; (S42) Install an outer casing in the excavated bore hole; (S43) Install an injection pipe outside an inner casing for injecting a grout material from the entry of the bore hole; (S44) Insert the inner casing installed with the injection pipe in the outer casing; (S45) Perform a grouting work by injecting the grout material from the entry of the bore hole through the injection pipe; (S46) Install a seismic sensor inside the inner casing after completion of the grouting work and perform a finishing work