發(fā)布時(shí)間：2018-09-01 20:12

【摘要】：為了有效控制和降低全斷面巖石隧道掘進(jìn)機(jī)施工時(shí)滾刀的磨損,較準(zhǔn)確地預(yù)測(cè)滾刀的磨損量,通過(guò)室內(nèi)實(shí)驗(yàn)和現(xiàn)場(chǎng)實(shí)驗(yàn)從地質(zhì)影響因素和機(jī)械影響因素2個(gè)方面對(duì)滾刀磨損問(wèn)題進(jìn)行了分析。通過(guò)水泥試樣實(shí)驗(yàn),得出等效石英含量EQC和單軸抗壓強(qiáng)度UCS單獨(dú)對(duì)巖石磨蝕性的影響規(guī)律;通過(guò)現(xiàn)場(chǎng)巖樣實(shí)驗(yàn),得出兩者共同對(duì)巖石磨蝕性的影響規(guī)律。通過(guò)對(duì)比進(jìn)口與國(guó)產(chǎn)TBM的刀盤(pán)刀具布置,得出滾刀破巖面積對(duì)磨損速率的影響規(guī)律;通過(guò)統(tǒng)計(jì)現(xiàn)場(chǎng)掘進(jìn)參數(shù)與刀具磨損數(shù)據(jù),得出場(chǎng)切深指數(shù)FPI對(duì)滾刀平均磨損速率的影響規(guī)律。研究結(jié)果表明:巖石對(duì)滾刀磨損的地質(zhì)影響是巖石等效石英含量和單軸抗壓強(qiáng)度共同作用的結(jié)果;破巖面積是刀盤(pán)刀具設(shè)計(jì)參數(shù)對(duì)滾刀磨損的敏感指標(biāo);場(chǎng)切深指數(shù)是設(shè)備掘進(jìn)參數(shù)對(duì)滾刀磨損的敏感指標(biāo)。
[Abstract]:In order to effectively control and reduce the wear of hob during the construction of full-face rock tunnel boring machine and accurately predict the wear of hob, the wear of hob is analyzed from two aspects of geological and mechanical factors through laboratory and field experiments. The equivalent quartz content EQC and single quartz are obtained through cement sample test. The influence law of axial compressive strength UCS on rock abrasiveness is obtained by field rock sample test, and the influence law of both on rock abrasiveness is obtained by comparing the cutter layout of imported and domestic TBM cutters. The results show that the geological effect of rock on hob wear is the result of rock equivalent quartz content and uniaxial compressive strength; the rock breaking area is the sensitive index of cutter design parameters to hob wear; and the field cutting depth index is the parameter to hob wear. The sensitive index of hob wear.
【作者單位】： 盾構(gòu)及掘進(jìn)技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(“973”計(jì)劃)項(xiàng)目(2014CB046906) 中鐵隧道集團(tuán)科技創(chuàng)新計(jì)劃(隧研合2014-01)
【分類(lèi)號(hào)】：U455.3

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