ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2018, Vol. 38 ›› Issue (S2): 351-357.DOI: 10.3973/j.issn.2096-4498.2018.S2.048
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YANG Wenlong
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Abstract:
In order to improve the mechanization level of arch frame construction of primary support in the early stage of fullface and microbench excavation of large crosssection weak surrounding rock tunnel, the threeboom arch mounting trolley is introduced. The parameters, properties and construction technology of the theeboom arch mounting trolley are analyzed, and comparison of applicable effect between the trolley and the traditional one is made. Some conclusions are drawn as follows: (1) The grapping and connecting arches of the trolley can effectively shorten the arch mounting time without hurting operates. (2) The steel arch installation process is more standardized, which can effectively improve the installation accuracy and quality of the arch. (3) Comparing to the traditional arch mounting equipments, the threeboom arch mounting trolley is more suitable for the arch frame construction of primary support of large crosssection soft surrounding rock tunnel by microbench and fullface excavation methods. (4) The trolley can also assist in the construction of some tunnels at high altitude.
Key words: tunnel, microbench, large crosssection, full face, weak surrounding rock, threeboom arch trolley
CLC Number:
U 456.3
YANG Wenlong. Application of XM1200 Threeboom Arch Trolley to Construction of Large Crosssection Tunnel with Weak Surrounding Rocks[J]. Tunnel Construction, 2018, 38(S2): 351-357.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.2096-4498.2018.S2.048
http://www.suidaojs.com/EN/Y2018/V38/IS2/351
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