JPS56142912A - Water and air permeation test at site - Google Patents
Water and air permeation test at siteInfo
- Publication number
- JPS56142912A JPS56142912A JP4573580A JP4573580A JPS56142912A JP S56142912 A JPS56142912 A JP S56142912A JP 4573580 A JP4573580 A JP 4573580A JP 4573580 A JP4573580 A JP 4573580A JP S56142912 A JPS56142912 A JP S56142912A
- Authority
- JP
- Japan
- Prior art keywords
- water
- pit
- permeation test
- air permeation
- rubber packer
- 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
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
PURPOSE: To exactly perform a water and air permeation test at site by largely simplifying the work procedure of the test by a method in which a pit is drilled by a boring rod with a rubber packer, and at the drilled position, the pit is blocked by the rubber packer and a predetermined water and air permeation test is performed.
CONSTITUTION: A pit with a given depth is drilled under the ground A to be tested by using a boring rod 1. Then, compressed air or pressurized water is supplied into a pressure fluid path 7 to direct it into a rubber packer 4 through the through hole 8 of an inner tube 3 in such a way as to expand the rubber packer 4 and thereby to closely touch it with the inner wall of bored pit B until the pit B is completely blocked. Then, water or air is sent into the rod 1 in the direction of arrow for performing a water or air permeation test. In this method, the necessity for the use of casing pipe and the combined use of grouting and packing work in the penetration work of casing can be eliminated. Also, no trouble with the blocking of pipe during the penetration work of casing occurs, thus permitting the water and air permeation test to be performed exactly.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4573580A JPS56142912A (en) | 1980-04-09 | 1980-04-09 | Water and air permeation test at site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4573580A JPS56142912A (en) | 1980-04-09 | 1980-04-09 | Water and air permeation test at site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56142912A true JPS56142912A (en) | 1981-11-07 |
Family
ID=12727572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4573580A Pending JPS56142912A (en) | 1980-04-09 | 1980-04-09 | Water and air permeation test at site |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56142912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545702A (en) * | 1982-07-02 | 1985-10-08 | Toa Grout Kogyo Co., Ltd. | Boring-injection device, method for improving ground by means of the device and method for investigating ground state by means of the device |
| CN114594037A (en) * | 2022-03-30 | 2022-06-07 | 中国水利水电科学研究院 | Method for measuring permeability coefficient of soil material |
-
1980
- 1980-04-09 JP JP4573580A patent/JPS56142912A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545702A (en) * | 1982-07-02 | 1985-10-08 | Toa Grout Kogyo Co., Ltd. | Boring-injection device, method for improving ground by means of the device and method for investigating ground state by means of the device |
| CN114594037A (en) * | 2022-03-30 | 2022-06-07 | 中国水利水电科学研究院 | Method for measuring permeability coefficient of soil material |
| CN114594037B (en) * | 2022-03-30 | 2023-07-07 | 中国水利水电科学研究院 | Method for measuring permeability coefficient of soil material |
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