超大直径全断面竖井掘进机分级开挖刀盘结构设计及应用

刘在政; 柯威; 姚满; 暨智勇; 文中保; 阳旭

doi:10.3973/j.issn.2096-4498.2023.06.016

隧道建设 >

2023 , Vol. 43 >Issue 6: 1057 - 1064

DOI: https://doi.org/10.3973/j.issn.2096-4498.2023.06.016

施工机械

超大直径全断面竖井掘进机分级开挖刀盘结构设计及应用

刘在政 ,
柯威 ,
姚满 ,
暨智勇 ,
文中保 ,
阳旭

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(中国铁建重工集团股份有限公司，湖南长沙〓410100）

刘在政 (1974—),男,山东栖霞人,2015年毕业于中南大学,机电工程专业，硕士，高级工程师,主要从事地下工程建造智能装备研制与规划工作。Email: liuzaizheng@crchi. com。*通信作者：柯威， Email： 919663928@qq.com。

网络出版日期: 2023-07-14

基金资助

Structural Design and Application of Cutterhead for Graded Excavation of FullFace Vertical Shaft Boring Machine with SuperLarge Diameter

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Structural Design and Application of Cutterhead for Graded Excavation of FullFace Vertical Shaft Boring Machine with SuperLarge Diameter

LIU Zaizheng ,
KE Wei ,
YAO Man ,
JI Zhiyong ,
WEN Zhongbao ,
YANG Xu

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(China Railway Construction Heavy Industry Corporation Limited, Changsha 410100, Hunan, China)

Online published: 2023-07-14

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摘要

为了匹配掘进机驱动系统的国产化、通用化，降低制作难度，缩短生产工期，开发出一种采用常规动力系统且能满足驱动要求的超大直径全断面竖井掘进机分级开挖刀盘。依托国内某竖井项目工程，基于分级开挖的设计方法，研制出一种采用5.3 m主轴承驱动、直径21.85 m内嵌滑动刀箱的分级开挖刀盘。该分级开挖刀盘通过滑动刀箱上下伸缩控制滚刀位置高度的变化，使每一次破岩只有部分滚刀参与，〖JP2〗达到降低刀盘掘进时所需的转矩和功率的目的。在实际工程应用中，刀盘掘进转矩小于17 000 kN·m，〖JP〗最大日进尺为1.8 m，平均日进尺约为1 m，刀盘应用效果较好。最后，根据实际应用效果指出分级刀盘设计存在的不足和需要改进的地方。

关键词： 超大直径竖井掘进机; 全断面开挖; 分级开挖刀盘; 结构设计

本文引用格式

刘在政 , 柯威 , 姚满 , 暨智勇 , 文中保 , 阳旭 . 超大直径全断面竖井掘进机分级开挖刀盘结构设计及应用[J]. 隧道建设, 2023 , 43(6) : 1057 -1064 . DOI: 10.3973/j.issn.2096-4498.2023.06.016

Abstract

For fullface vertical shaft boring machine with superlarge diameter, a type of graded excavation cutterhead driven by conventional power system is developed to match the localization and generalization of the driving system of boring machines, reduce the manufacturing difficulty, and shorten the processing time. Based on a vertical shaft project in China and the graded excavation design method, a graded excavation cutterhead with a diameter of 21.85 m embedded in the sliding cutter box and driven by a 5.3 m main bearing is developed. To minimize the torque and power required by the cutterhead, the cutterhead regulates the change in position and height of the disc cutter by stretching the sliding cutter box up and down, so that only a part of the disc cutters engage in each rockbreaking operation. In practical engineering applications, the cutterhead torque is less than 17 000 kN·m, the maximum daily advancing length is 1.8 m, and the average daily advancing length is approximately 1 m, indicating a favorable application effect. Finally, several recommendations for improving graded excavation cutterheads are provided.

Key words： superlarge diameter vertical shaft boring machine; fullface excavation; graded excavation cutterhead; structural design

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