GB/T 41053-2021Full face tunnel boring machines - Dual mode earth pressure balanced and slurry balanced tunnel boring machines (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted: Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Machinery Industry Federation: This document is under the jurisdiction of the National Standardization Technical Committee of Construction Machinery and Equipment (SAC/TC328): This document is drafted by: China Railway Construction Heavy Industry Group Co:, Ltd:, China Railway 16th Bureau Group Co:, Ltd:, China Railway 18th Bureau Group Co:, Ltd: Co:, Ltd:, China Railway 12th Bureau Group Co:, Ltd:, China Railway 11th Bureau Group Urban Rail Engineering Co:, Ltd:, China Water Resources and Hydropower Eighth Engineering Bureau Co:, Ltd:, China Water Resources and Hydropower Third Engineering Bureau Co:, Ltd:, Tianjin University, Shandong University, Dalian University of Technology, Guangzhou Rail Transit Construction Supervision Co:, Ltd:, Shenyang Jianzhu University, North Heavy Industry Group Co:, Ltd:, Beijing Construction Mechanization Research Institute Co:, Ltd:, China Railway Engineering Equipment Group Co:, Ltd:, CCCC Tianhe Machinery Equipment Manufacturing Co:, Ltd:, Lixin Measurement (Shanghai) Co:, Ltd:, National Construction and Urban Construction Machinery Quality Supervision Inspection Center: The main drafters of this document: Liu Feixiang, Cheng Yongliang, Ma Dong, Dai Jinghui, Li Liuping, Wan Weiyan, Liu Hong, Li Dongfeng, Zhang Qian, Liu Bin, Huo Junzhou, Zhu Weibin, Zhou Peng, Wang Ao, Liu Shuang, Jia Lianhui, Mei Wanyong, Zhang Xiaori, Zeng Shunan, Ma Chengbiao, Li Shucai, Zhang Shuaikun, Wang Wuxian, Wang Qingzhu, Wu Haijun, Qiao Xiaoliang, Ke Shan, Li Zhaoyu, Qu Chuanyong, Huang Weiran, He Enguang, Zhang Wang, Ma Xiaoli, Yuan Wenzheng, Wang Cangang, Yang Jinyong, Tang Shilin and Zhou Zihan: full-face tunnel boring machine Earth pressure balance - mud water balance dual mode roadheader

1 Scope

China's national standard for dual mode tunnel boring machines capable of both earth pressure balance and slurry balance operation. The machine exists because a long tunnel does not stay in one kind of ground. An earth pressure balance machine supports the face with the excavated soil itself, conditioned into a paste, and works well in clays and silts; a slurry machine supports it with pressurised bentonite and works where the ground is coarse, permeable and water-bearing. A drive that begins in clay and enters sand and gravel halfway would need a different machine for each half, and changing machines mid-tunnel means a shaft, a disassembly and months. A dual mode machine converts in place: the screw conveyor is replaced or supplemented by a slurry circuit, and the face support changes from paste to suspension. The conversion is the engineering problem, and the standard's requirements are largely about doing it underground, safely, in a working tunnel.

This document specifies the terms and definitions, models and basic parameters, technical requirements, test methods of earth pressure balance-slurry balance dual-mode roadheaders law, inspection rules, accompanying documents, marking, packaging and transportation: This document applies to the design, manufacture and inspection of earth pressure balance-slurry balance dual-mode roadheaders (hereinafter referred to as roadheaders):

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document:

GB/T 150 (all parts) Pressure Vessels

GB/T 191 Graphical signs of packaging, storage and transportation

GB/T 1985-2014 High-voltage AC isolating switch and grounding switch

GB 2894 Safety Signs and Guidelines for their Use

GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components Conductor of GB/T 3956 cable

GB/T 4208 enclosure protection class (IP code) GB/T 5226:

1 Mechanical and Electrical Safety Mechanical and Electrical Equipment Part 1: General Specifications GB 5226:

3 Mechanical Safety Mechanical Electrical Equipment Part 11: Voltage High Voltage 1000Va:c: or 1500Vd:c: but not exceeding Technical conditions of 36kV high voltage equipment

GB/T 6388 Receipt and Delivery Marks for Transport Packaging

GB/T 7932 General rules and safety requirements for pneumatic systems and their components GB/T 10595 Belt Conveyor

GB/T 13283 Accuracy class of testing instruments and display instruments for industrial process measurement and control GB/T 13306 Signs

GB/T 13384 General technical conditions for packaging of mechanical and electrical products

GB/T 14039 Hydraulic Transmission Fluid Solid Particle Pollution Degree Code GB/T 14048: