Efficient construction method for curtain grouting in water conservancy project construction
The invention provides an efficient curtain grouting construction method for hydraulic engineering construction, and belongs to the technical field of hydraulic engineering construction. The efficient curtain grouting construction method for hydraulic engineering construction comprises the steps of...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an efficient curtain grouting construction method for hydraulic engineering construction, and belongs to the technical field of hydraulic engineering construction. The efficient curtain grouting construction method for hydraulic engineering construction comprises the steps of measuring and determining a grouting hole, drilling the grouting hole, lowering a grouting inner pipe and grouting the grouting hole; according to the method, the upper end face of the impermeable rock stratum is measured through the total station, and when the drilling depth is determined, the lowest end of the drilling hole is 1.5 m below the upper end face of the impermeable rock stratum at the position corresponding to the grouting hole, so that it can be guaranteed that the depth of the lower end of the grouting hole penetrating into the impermeable rock stratum reaches the standard; investment increase and cement resource waste caused by too deep grouting holes are avoided; limiting blocks are arranged betwee |
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