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1. 发明专利

JPH0932033A BASE ROCK SURFACE CLEANING DEVICE 失效
公开(公告)号：JPH0932033A
公开(公告)日：1997-02-04
申请号：JP20281395
申请日：1995-07-17
申请人： SANEI KOGYO KK , SHIMIZU CONSTRUCTION CO LTD
发明人： URAYA AKIO , OKADA SHIGERU , HATAKEYAMA YOSHIRO , TANIGUCHI HAJIME
IPC分类号： E02F3/88 , E02F3/92
摘要： PROBLEM TO BE SOLVED: To efficiently clean a base rock surface where unevenness excists and a concrete placing joint surface. SOLUTION: A mouth 20 installed on the tip of a cylinder tip suction port of a suction hose 12 extendedly arranged from a vacuum unit, is installed on the tip of a boom of a mini shovel. A pressure water distributing pipe 26 having plural pressure water nozzle pipes 30 to blow out pressure water supplied from a pressure source to a space in the mouth 20, is arranged in and supported with a part of this mouth 20. An air distributing pipe 28 having plural air nozzle pipes 32 to blow out compressed air supplied from the pressure source to a space in a mouth main body 22, is supported in an outer peripheral position of the pressure water distribution pipe 26. An elastic barrier 24 which can bring the lower end 24a into close contact with a base rock surface by operation of the boom, is installed on the lower end outer peripheral edge of the mouth 20. An air curtain is formed in the mouth main body 22 in an outside position of blowing-out pressure water by blowout air from the air nozzle pipe 32, and outside air and a space in the mouth 20 are cut off together with the elastic barrier 24. A range of a space defined by the air curtain is vacuum sucked by the suction hose 12, and the base rock surface is cleaned.

2. 发明专利

JPH07217397A VENTILATION CONTROLLER IN TUNNEL EXCAVATION 失效
公开(公告)号：JPH07217397A
公开(公告)日：1995-08-15
申请号：JP858694
申请日：1994-01-28
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： TONAI TAKASHI , KONO SHIGEYUKI , CHIBA TAKASHI , HATAKEYAMA YOSHIRO , FUKAI HIDEO
IPC分类号： E21F1/00
摘要： PURPOSE:To enable the emergency ventilation automatically and surely after the blasting by setting airflow and time for ventilation with an emergency ventilating control section in the case a detection signal of a vibration sensor is in excess of reference value after the blast is executed in a tunnel. CONSTITUTION:A ventilating controller 10 is constituted of a fuzzy control section 11, an emergency ventilating control section 12 and an airflow 13, setting section and a detection signal from an environmental information detection sensor 7 is inputted to the fuzzy control 11. After that, fuzzy operations are made in a fuzzified section 14, a fuzzy theory section 15 and a non-fuzzified section 16. Increase and decrease of airflow is set in the airflow setting 13, and its signal is outputted to a ventilating fan 4. Then, a detection signal from a vibration sensor 8 is inputted in the emergency ventilating control 12, a vibration reference value decision section 17 and a blast detection section 18 detects whether or not the blast is executed, and in the case the blast is executed, emergency ventilation time is set by a timer setting section 19, and a signal set by the operation airflow setting section 13 is outputted to the ventilating fan 4. Reference value is decided by the vibration reference value decision section 17.

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