ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2018, Vol. 38 ›› Issue (12): 2019-2025.DOI: 10.3973/j.issn.2096-4498.2018.12.014
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ZHAN Tao1, YANG Chunbo2, *, AN Bin2
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Abstract:
The grooving efficiency of underground diaphragm wall of Liuyanjing Station on Nanchang Metro Line No. 3 in argillaceous siltstone stratum is low, hence, it should be improved. The lithology of argillaceous siltstone is studied, the performance of doublewheel trench cutter is investigated, the equipment and supporting are selected and improved, and innovations and optimizations are carried out for grooving technology. The study results show that: (1) The grapping and cutting technology is suitable for composited strata. (2) The grooving effect of conical tooth type cutterhead is superior to that of standard plane tooth type one in thick argillaceous siltstone stratum. (3) The waterslurry separation effect of centrifugal waterslurry separation system is superior to that of vibration sand filter, and the centrifugal waterslurry separation system can effectively improve the grooving efficiency. (4) A series of grooving technologis of doublewheel trench cutter used in argillaceous siltstone stratum in Nanchang are obtained, which are worth popularizing in Nanchang area and can provide reference for similar projects in the future.
Key words: underground diaphragm wall, argillaceous siltstone, doublewheel trench cutter, cutterhead selection, rapid grooving technology
CLC Number:
U 455.45+2
ZHAN Tao, YANG Chunbo, AN Bin. Rapid Grooving Technology of Doublewheel Trench Cutter Used in Argillaceous Siltstone Stratum[J]. Tunnel Construction, 2018, 38(12): 2019-2025.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.2096-4498.2018.12.014
http://www.suidaojs.com/EN/Y2018/V38/I12/2019