【正文】 ding group. Heading to improve speed and ensure safety of the structures along the tunnel, the Shanghai Tunnel pany39。s South Station a cable tunnel project across the Huangpu River at the end of silt layer, boring length of 583 m, technological achievements 80 in the advanced international level, and in 1990 received national scientific and technological progress award. 1990, the Shanghai Metro Line No. 1 and works all started, 18 km range seven tunnels used by the French pany FCB, the Shanghai Tunnel shares, the Shanghai Tunnel Engineering and Design Institute, Hudong Shipyard joint manufacture of m earth pressure balance shield boring machine . Tunneling shield on each 200 m above the surface subsidence control of +1 ~ 3 cm. 1996, the Shanghai Metro Line 2 to reuse the original seven earth pressure shield, and the introduction of panies from France FMT 2earth pressure balance Shield, the tunnel boring 24 km range. Shanghai Metro Line 2 of the Shield on the 10th for the Shanghai Tunnel Company to design and manufacture. In the 1990s, the Shanghai Tunnel Engineering Co., Ltd. to design and manufacture the six ~ m earth pressure balance shield for the subway tunnel, from the drainage tunnel, cable tunnels, tunneling total length of about 10 km. In the 1990s, ~ m in diameter the top of the project is also used knives and machetestheearth pressure balance top of the machine, used in Shanghai for more than 10 Taiwan, boring pipeline about 20 km. 1998, the Shanghai Huangpu River tunnel project to buy foreign tourists used m articulated earth pressure balance Shield, the boring machine repair after a good performance, smooth boring tunnels 644 m. 1996, Yanandonglu Shanghai Tunnel Engineering 1300 m south of the main circular tunnel from Japan by the introduction of the pressure balance m mud shield boring machine construction. In 1998, the shares of Shanghai Tunnel No. 1 domestic successfully developed Taiwan m mud roof of the pressure balance machine for the Shanghai Sewage Treatment two inverted siphon of the river project, jacking 1220 m. May 1999, the Shanghai Tunnel successful development of domestic shares 1Taiwan m rectangular disc bination knife top of the earth pressure balance machine, in the Pudong Lujiazui subway station tunneling 120 m, pleted two people line the street Road. February 2021, Guangzhou Metro Line 2 Haizhu Square to Jiangnan Village interval Tunnel restructuring of the Shanghai Tunnel shares m pound earth pressure balance Shield, in the Pearl River at the end of weathered rock strata in the excavation. 2. Grid squeeze shield boring machine applications June 1965, the Shanghai subway tunnel 60 projects range from using the tunnel project and Design Institute of Design, the Jiangnan Shipyard manufacture m grid squeezeShield Construction, the thrust of 104kN. Tunnel casing about 12 m, boring length of 2 600m. Shield advance through the buildings and underground pipelines were not affected. July 1967, the MTR pilot projects are pleted, which is China39。s Jiangnan Shipyard first superlarge diameter of m grid squeezing shield boring machine construction, bined with pressure stability Excavation of the Huangpu River at the end of the tunnel boring smooth, boring a total length of 1322 m. The 1970s, Taiwan adopted a diameter of m and m in diameter for two of the gridshield squeeze in Shanghai Jinshan Petrochemical Plant construction of a sewage tunnel and two diversion tunnels, excavation of the 3926 m Cross Harbour Tunnel, And the first or top of the vertical construction of drainage inlets from the new technology. 1980, a Shanghai Metro Line 1 Test Construction, developed a diameter of m knife disc shield boring machine, after squeezing into meshtype of shield tunneling machine, in the mud in the formation of clay Tunnel excavation 1230 m. 1985, the Shanghai Tunnel Engineering Jiang Yanandonglu the 1476 m main tunnel used circular tunnel in Shanghai shares the design, manufacture of the Jiangnan Shipyard in diameter m gridtype hydraulic machinery unearthed shield boring machine. 1987 Shanghai Tunnel shares has succeeded in the development of China39。s shield boring machine manufacturers and application began in 1963, the Shanghai Tunnel Engineering Company in Shanghai soft soil layer on the shield boring machine, precast concrete lining of the tunnel boring construction parameters, the tunnel joints waterproofing system for the pilot study . Taiwan developed a diameter of m of handshield for shallow and deep tunnel boring tests, tunnel boring length of 68 m. 1965, by the Shanghai Tunnel Engineering and Design Institute of Design, the Jiangnan Shipyard manufacture 2diameter of m grid squeezeshield boring machine, boring the two metro tunnel, boring a total length of 1200 m. 1966, the Shanghai Dapu Lu Jiang39。s shield tunnel boring machine technology development status 1. Shield tunnel boring China39。 2021～ 2021年國內(nèi)各類盾構(gòu)的需求量預(yù)測(cè)表 盾構(gòu)機(jī)型 直徑（ m） 臺(tái)數(shù) 單價(jià)（萬美元／臺(tái)）引進(jìn)費(fèi)用（億美元） 備注 土壓平衡盾構(gòu) 泥水加壓盾構(gòu) 6 70 500 掘進(jìn)地鐵 500km 3～ 5 100 200～ 400 3 掘進(jìn)市政隧道 600km 復(fù)合型盾構(gòu) 6 15 600 掘進(jìn)地鐵 120km TBM掘進(jìn)機(jī) 4～ 5 20 1000 2 掘進(jìn)水電隧道 200km 8～ 9 6 3000 掘進(jìn)鐵路隧道 60km 總計(jì) 181 由上表預(yù)測(cè)，今后 10年我國隧道掘進(jìn)機(jī)的市場(chǎng)可達(dá) 10億美元，若有 60％采用國產(chǎn)掘進(jìn)機(jī)，至少可節(jié)省外匯 6億美元，并可振興我國的掘進(jìn)機(jī)制造業(yè)。水電隧道 TBM掘進(jìn)機(jī)每臺(tái) 1000萬美元， 20臺(tái)約需 2億美元。因此，盾構(gòu)國產(chǎn)化替代進(jìn)口是我們的目標(biāo)和主要任務(wù)，以每臺(tái) φ6m的地鐵盾構(gòu) 500萬美元計(jì)算， 40臺(tái)盾構(gòu)