Hard Ground Section (HG) DCM Construction Device and Construction Method Using the Construction Device
| Patents No. | 10-2198481 |
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| Application date | April 6, 2020 |
| Date of issue | December 29, 2020 |
| Issuing agency | Commissioner of the Korean Intellectual Property Office |
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Detail
The present invention relates to a deep mixing treatment device and a deep mixing treatment method for forming a large-section underground structure in hard ground.
Specifically, when forming a large-section underground structure of 1000 mm or more in a composite stratum including soft ground with an N-value of less than 0 to 30 and hard ground with an N-value of 30 or more, compressed air is discharged together with drilling water to facilitate excavation of the hard ground, thereby forming a uniform and continuous high-strength underground structure, thereby increasing construction quality and shortening the construction period, thereby improving construction efficiency. This is a technical field related to a hard ground large-section DCM construction device and a construction method using the construction device.