Fast slip casting technique between composite well wall
A technology of grouting and shaft wall, which is applied in sinking, shaft equipment, mining equipment, etc., can solve the problems of poor safety conditions, high cost, and low efficiency, and achieve the effect of fast grouting speed, low cost, and high efficiency
Inactive Publication Date: 2008-01-16
盛天宝 +1
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The invention discloses a rapid injection technique to cavity among walls of compound shaft. The shaft is sectioned by injection in accordance with the frozen shaft depth, shaft wall thickness and strength and stratigraphic position of water-bearing bed, and the section has height of 100-200 m. When constructing inner layer shaft wall, pre-installing and pre-embedding a vertical sectioned injection pipe adaptable to the height of the injected section, a plurality of injection heads are equipped on the sectioned injection head and communicated with the cavity among walls of plastic interlayer, a plurality of injection points are formed at the same time at one section, the upper end of the sectioned injection pipe is connected with a delivery pipe, and the other end of the delivery pipe is connected with an injection pump via a connecting rubber pipe. The invention has the advantages of simple process, safe and reliable performance, high injection speed, high efficiency, and low cost. And, the occupied time of injection process to cavity among walls to the shaft construction is reduced by 60-90 percent, so as to shorten the shaft construction period.
Application Domain
Shaft sinking
Technology Topic
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