JPS6448996A - Method of slurry shielding construction - Google Patents
Method of slurry shielding constructionInfo
- Publication number
- JPS6448996A JPS6448996A JP20407487A JP20407487A JPS6448996A JP S6448996 A JPS6448996 A JP S6448996A JP 20407487 A JP20407487 A JP 20407487A JP 20407487 A JP20407487 A JP 20407487A JP S6448996 A JPS6448996 A JP S6448996A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- injected
- basis
- mathematical formula
- ground
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Abstract
PURPOSE: To improve the stability of a face by calculating accurately the density and quantity of slurry to be injected into a pressure chamber or a screw con veyor on the basis of a mathematical formula in accordance with changes in the excavation condition of a shield machine and the ground. CONSTITUTION: The density of slurry to be injected is calculated accurately on the basis of a mathematical formula where the binder and gravel fractions of the ground are a function. The quantity of slurry to be injected is calculated accurately on the basis of a mathematical formula where the ratio of soil particles and the porosity of the excavated ground are a function, thereby obtaining always proper mix proportions and making reasonable planning and estimation by eliminating interpersonal differences based on the subjectivity of persons in charge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20407487A JPS6448996A (en) | 1987-08-19 | 1987-08-19 | Method of slurry shielding construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20407487A JPS6448996A (en) | 1987-08-19 | 1987-08-19 | Method of slurry shielding construction |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448996A true JPS6448996A (en) | 1989-02-23 |
Family
ID=16484339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20407487A Pending JPS6448996A (en) | 1987-08-19 | 1987-08-19 | Method of slurry shielding construction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448996A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100969750B1 (en) * | 2002-04-12 | 2010-07-13 | 내프 엔터프라이즈 캄퍼니 리미티드 | Ear pad, and earphone with the pad |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113080A (en) * | 1984-06-28 | 1986-01-21 | Matsushita Refrig Co | Damper opening and closing apparatus |
-
1987
- 1987-08-19 JP JP20407487A patent/JPS6448996A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113080A (en) * | 1984-06-28 | 1986-01-21 | Matsushita Refrig Co | Damper opening and closing apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100969750B1 (en) * | 2002-04-12 | 2010-07-13 | 내프 엔터프라이즈 캄퍼니 리미티드 | Ear pad, and earphone with the pad |
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