JPS55108513A - Method for simplified bearing-ratio test of subgrade soil and penetration test machine for soil - Google Patents
Method for simplified bearing-ratio test of subgrade soil and penetration test machine for soilInfo
- Publication number
- JPS55108513A JPS55108513A JP1569979A JP1569979A JPS55108513A JP S55108513 A JPS55108513 A JP S55108513A JP 1569979 A JP1569979 A JP 1569979A JP 1569979 A JP1569979 A JP 1569979A JP S55108513 A JPS55108513 A JP S55108513A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- test
- penetration
- needle
- tester
- 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.)
- Granted
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
PURPOSE: To calculate apparent CBR values and simply test subgrade soil bearing- ratios by a comparison of results obtained from a penetration test by a tester equipped with sampling and measuring devices between base plates assembled at the job site, to those obtained from tests of sample soils carried out in advance at a test room.
CONSTITUTION: A soil at the job site is sampled into a mold with holes 40 on a tester 1, made compact in three layers by rammer and immersed in water together with a mold for a specified time. A needle 24 of the tester 1 is penetrated into the specimen to measure a penetration resistance and read the maximum meedle resistance. On the other hand, an apparent CBR value equivalent to a deviation value of an index read at the test in the job site is calculated from a correlation figure drawn with a comparison between the needle resistances and the values obtained from a penetration test which is made on the same soil beforehand in a test room in accordance with the JIS subgrade soil bearing-ratio test method. By this method, apparent CBR values can be measured easily from needle resistances and accordingly a soil judgement is simplified.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1569979A JPS55108513A (en) | 1979-02-13 | 1979-02-13 | Method for simplified bearing-ratio test of subgrade soil and penetration test machine for soil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1569979A JPS55108513A (en) | 1979-02-13 | 1979-02-13 | Method for simplified bearing-ratio test of subgrade soil and penetration test machine for soil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55108513A true JPS55108513A (en) | 1980-08-20 |
JPS6254925B2 JPS6254925B2 (en) | 1987-11-17 |
Family
ID=11896009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1569979A Granted JPS55108513A (en) | 1979-02-13 | 1979-02-13 | Method for simplified bearing-ratio test of subgrade soil and penetration test machine for soil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55108513A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010054419A (en) * | 2008-08-29 | 2010-03-11 | Jfe Steel Corp | Method of testing soil of engineering work material |
CN102053040A (en) * | 2010-11-24 | 2011-05-11 | 中铁第五勘察设计院集团有限公司 | Dynamic bearing ratio detecting method and instrument |
CN104142279A (en) * | 2014-07-17 | 2014-11-12 | 山西省交通科学研究院 | Roadbed soil dynamic rebound modulus predicting system and method |
CN105424591A (en) * | 2015-11-23 | 2016-03-23 | 太原理工大学 | Device for indoors measuring penetration resistances of soil body in multiple states |
KR102465133B1 (en) * | 2022-06-27 | 2022-11-09 | (주)쏘일테크엔지니어링 | Sample strength measuring device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102230870B (en) * | 2011-04-08 | 2012-10-10 | 长安大学 | Method for testing grading broken stone CBR numerical value |
-
1979
- 1979-02-13 JP JP1569979A patent/JPS55108513A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010054419A (en) * | 2008-08-29 | 2010-03-11 | Jfe Steel Corp | Method of testing soil of engineering work material |
CN102053040A (en) * | 2010-11-24 | 2011-05-11 | 中铁第五勘察设计院集团有限公司 | Dynamic bearing ratio detecting method and instrument |
CN104142279A (en) * | 2014-07-17 | 2014-11-12 | 山西省交通科学研究院 | Roadbed soil dynamic rebound modulus predicting system and method |
CN105424591A (en) * | 2015-11-23 | 2016-03-23 | 太原理工大学 | Device for indoors measuring penetration resistances of soil body in multiple states |
CN105424591B (en) * | 2015-11-23 | 2018-02-16 | 太原理工大学 | The indoor measurement apparatus of soil body penetration resistance under various states |
KR102465133B1 (en) * | 2022-06-27 | 2022-11-09 | (주)쏘일테크엔지니어링 | Sample strength measuring device |
Also Published As
Publication number | Publication date |
---|---|
JPS6254925B2 (en) | 1987-11-17 |
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