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1 本设备是北京市科委《一九八八年城市建设与城市管理科学发展计划》内,“管道快速施工技术”项目中的一个课题。一九九0年底完成模型机的研制及掘进作业试验。一九九一年六月在市科委主持下,通过了技术成果鉴定,一九九—年十月完成产品样机的设计。 2 本设计的直接目标是:在地下管道顶管法施工中代替人工,进行掘进作业的小型掘进设备。 其主要技术参数:能耗率:<0.6KW/m~2 顶进速度:可达56mm/m~3 生产度:可达10m~3/h 成孔径范围:D=1350～1950mm(可调) 它适用于Ⅱ级砂质土壤的地下水平圆孔掘进作业,特别是工程规模小,施工的技术保证水平一般,大型的全机构化设备难以施展的条件下,更能显示其小型机械的优越性。 专家估计,在顶管施工中使用,与人工掘进相比,其日进尺可望提高一半,施工质量能够得到可靠保证。
1 This equipment is a subject in the “Pipeline Rapid Construction Technology” project in the Beijing Science and Technology Commission’s “Scientific Development Plan for Urban Construction and Urban Management in 1988”. At the end of 1990, the development of model machines and excavation work tests were completed. In June 1991, under the auspices of the Municipal Committee of Science and Technology, it passed the appraisal of technical achievements and completed the design of product prototypes in October 1991. 2 The direct objective of this design is to replace small-scale excavation equipment for excavation work in the construction of the underground pipe jacking method. Its main technical parameters: energy consumption rate: <0.6KW/m~2 jacking speed: up to 56mm/m~3 production degree: up to 10m~3/h into an aperture range: D=1350~1950mm (adjustable) It is suitable for underground level round hole excavation work of Grade II sandy soil, especially for small scale projects, the level of technical guarantee for construction is general, and the superiority of small machinery can be better displayed under the condition that large-scale full-structured equipment is difficult to display. . Experts estimate that in the use of pipe jacking construction, compared with manual excavation, it is expected to increase by half the daily progress, and construction quality can be reliably guaranteed.