HK45176A - Method of controlling the water head of the working face in the shield method of construction of tunnels - Google Patents

Method of controlling the water head of the working face in the shield method of construction of tunnels

Info

Publication number
HK45176A
HK45176A HK45176A HK45176A HK45176A HK 45176 A HK45176 A HK 45176A HK 45176 A HK45176 A HK 45176A HK 45176 A HK45176 A HK 45176A HK 45176 A HK45176 A HK 45176A
Authority
HK
Hong Kong
Prior art keywords
tunnels
construction
controlling
working face
water head
Prior art date
Application number
HK45176A
Inventor
Hiroshi Matsushima
Original Assignee
Nishimatsu Constr Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nishimatsu Constr Co Ltd filed Critical Nishimatsu Constr Co Ltd
Publication of HK45176A publication Critical patent/HK45176A/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
HK45176A 1972-09-13 1976-07-15 Method of controlling the water head of the working face in the shield method of construction of tunnels HK45176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4258272A GB1395658A (en) 1972-09-13 1972-09-13 Method of controlling the water head of the working face in the sield method of construction of tunnels

Publications (1)

Publication Number Publication Date
HK45176A true HK45176A (en) 1976-07-23

Family

ID=10425076

Family Applications (1)

Application Number Title Priority Date Filing Date
HK45176A HK45176A (en) 1972-09-13 1976-07-15 Method of controlling the water head of the working face in the shield method of construction of tunnels

Country Status (2)

Country Link
GB (1) GB1395658A (en)
HK (1) HK45176A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631856B1 (en) * 1988-05-31 1991-09-13 Rhone Poulenc Chimie PROCESS FOR MIXING AND COMPRESSING GAS, WITH CONTROLLED FLOW, STABLE IN FLOW AND IN COMPOSITION, FROM AT LEAST TWO PRESSURE SOURCES
CN114483431B (en) * 2021-12-27 2023-11-10 华能澜沧江水电股份有限公司 Water head calculation and verification system and method for hydropower station speed regulator

Also Published As

Publication number Publication date
GB1395658A (en) 1975-05-29

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