Bauer
‘s system of cement injection under high pressure is considered nowadays the ultimate solution for an
environmentally acceptable ground improvement injections.
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The system has the following advantages:
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No chemicals are injected into the soil.
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The injection body has a relatively high compressive strength.
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Can be used in almost all types of soils.
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Drilling / flushing can be carried out by almost all known rotary drilling machines. Once the final depth has been reached, the changeover between flushing and injection is made by a valve which is located in the jet housing.
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The high pressure grouting stream is produced by a nozzle fixed at the lower end of the drilling rod, cutting into the surrounding soil. Usually the jet stream consists of a mix of water or / and air together with cement suspension.
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The grout columns are formed by continuously rotating and pulling up the drilling rod. The diameter and depth of the column are
influenced by the following parameters:
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Pulling speed of the drilling rod.
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Rotation speed of the rod (RPM).
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Diameter of the used nozzle.
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Post Grouted Bored Piles
