Use of in Situ Tests in Compaction Control of a Bottom Ash Embankment

2008 ◽  
Vol 2045 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Nayyar Zia Siddiki ◽  
Athar Khan ◽  
Daehyeon Kim ◽  
Travis Cole
Keyword(s):  
Bottom Ash ◽  
Coal Ash ◽  
Test Methods ◽  
Cone Penetration ◽  
In Situ Tests ◽  
Recycled Materials ◽  
Compaction Control ◽  
Dynamic Cone Penetration Test ◽  
Dynamic Cone Penetration

Since 1994, the Indiana Department of Transportation has constructed numerous recycled materials projects that use bottom ash, fly ash, foundry sand, crushed glass, and tire shreds in transportation facilities. All these projects were constructed in accordance with procedural specifications based on conventional compaction control tests such as the nuclear gauge. However, the nuclear gauge does not give accurate density and moisture content results because of the presence of numerous elements in recycled materials. In addition, sand cone tests are cumbersome and time-consuming. There is a need to develop criteria for in situ test methods such as the dynamic cone penetration test and lightweight deflectometer (LWD) testing. Once an initial criterion is established, criteria for compaction control of similar recycled materials can be developed. In a study, a test pad using coal ash was constructed with a combination of roller passes. On the basis of the results of dynamic cone penetration and LWD tests conducted in the test pad, in conjunction with a combination of roller passes, the criteria for compaction control of bottom ash was provided for the construction of the remaining 11-m-high embankment. The subsequent construction monitoring and postconstruction evaluation of the bottom ash embankment revealed that the criteria are very effective.

Initial DPSH Soil Test Results with Accelerometer Installed in the Probe Cone

2016 ◽  
Author(s):  
Kęstutis Kelevišius ◽  
Gintaras Žaržojus
Keyword(s):  
Soil Analysis ◽  
Cohesive Soil ◽  
Test Results ◽  
Cone Penetration ◽  
In Situ Tests ◽  
Soil Response ◽  
Dynamic Penetration ◽  
Dynamic Cone Penetration ◽  
Cpt Test

Dynamic penetration test (DPSH) is one of the large amount of soil in-situ tests are known. In world practice, this method usually used for granular soil investigations although it could be applied in cohesive soils. Correlation of received DPSH test results with soil properties is complex and often not reliable. Especially it becomes obvious after application in cohesive soil analysis. In most cases, correlation depends on soil response to dynamic cone penetration and deformation of dynamic sounding equipment. Measurement of cone accelerations allows precisely evaluate loss of hammer energy, displacement of the cone during strike and other parameters. Correlation of DPSH (measured acceleration of the cone) and CPT test results are presented in this article. In this article also presented studies of possibilities to determine dynamic soil characteristics.

FIELD ASSESSMENT OF DYNAMIC CONE PENETRATION TEST TO EVALUATE SAND DENSITY

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Abdulrahman M. Hamid ◽  
Saad A. Aiban ◽  
Omar S. Baghabra Al-Amoudi
Keyword(s):  
Field Testing ◽  
Cone Penetration Test ◽  
Engineering Properties ◽  
Dry Density ◽  
Penetration Test ◽  
Cone Penetration ◽  
Replacement Method ◽  
Dynamic Cone Penetration Test ◽  
Dynamic Cone Penetration

Rapid and accurate in-situ measurement of soil properties is still a challenge facing the construction industry and there is a need for new and advanced devices and methods. Dynamic cone penetration test (DCPT) is an effective device used for field exploration and quality assessment of subsoil. DCPT could be used to predict the engineering properties of sand because it is difficult to perform conventional density tests, such as the sand replacement method, especially when loose or submerged sandy soil is encountered. Two cases of DCP field testing were conducted in Al-Jubail and Ras Al-Khair, eastern Saudi Arabia, where the major petrochemical industries are located. These tests were utilized to evaluate the potential use of DCPT to assess the density during the construction of backfills, whereby the nuclear gauge was also used to accurately measure the in situ soil density and water content. The DCP-nuclear gauge data clearly indicated that there is a good correlation between the dry density obtained from the nuclear gauge and the dynamic cone penetration (DCP) readings, which proves that the DCPT is an effective and reliable tool in the assessment of in situ compaction of sand backfills.

In situ testing and its application to foundation engineering

1986 ◽  
Vol 23 (4) ◽  
pp. 573-594 ◽  
Author(s):  
P. K. Robertson
Keyword(s):  
Test Methods ◽  
Load Test ◽  
Foundation Engineering ◽  
Penetration Test ◽  
In Situ Testing ◽  
Cone Penetration ◽  
Specific Test ◽  
Pressuremeter Test ◽  
In Situ Test

The status of in situ testing and its application to foundation engineering are presented and discussed. The in situ test methods are discussed within the framework of three groups: logging, specific, and combined test methods. The major logging test methods discussed are standard penetration test (SPT), cone penetration test (CPT), and the flat plate dilatometer test (DMT). The major specific test methods discussed are the prebored pressuremeter test (PMT), the self-bored pressuremeter test (SBPMT), and the screw plate load test (SPLT). Discussion is also presented on recent tests that combine features of logging tests (using the CPT) and specific tests (e.g. the seismic, the electrical resistivity/dielectric, and the lateral stress sensing cone penetration tests). A brief discussion is also presented on the applicability, as perceived by the author, of existing in situ test methods and the future of in situ testing applied to foundation engineering. Key words: in situ testing, foundation engineering, penetration testing, pressuremeter.

ON ESTIMATING THE DEGREE OF COMPACTION OF IN-SERVICE EMBANKMENT USING DYNAMIC CONE PENETRATION TEST AND PARTICLE SIZE CHARACTERISTICS

2021 ◽  
Vol 77 (1) ◽  
pp. 32-42
Author(s):  
Satoshi NONAMI ◽  
Satoru SHIBUYA ◽  
Satsuki KATAOKA ◽  
Nobuyuki TORII ◽  
Katsuhiro CHINO
Keyword(s):  
Particle Size ◽  
Cone Penetration Test ◽  
Penetration Test ◽  
Cone Penetration ◽  
Dynamic Cone Penetration Test ◽  
Dynamic Cone Penetration

Interpretation of overconsolidation ratio from in situ tests in Recent clay deposits in Singapore and Malaysia

1991 ◽  
Vol 28 (2) ◽  
pp. 210-225 ◽  
Author(s):  
M. F. Chang
Keyword(s):  
Site Investigation ◽  
Test Methods ◽  
In Situ Tests ◽  
Stress History ◽  
Overconsolidation Ratio ◽  
Clay Deposits ◽  
Preconsolidation Pressure ◽  
Pressure Stress ◽  
Sample Disturbance

The stress history as indicated by the profile of overconsolidation ratio (OCR) of a soil deposit is one of the most dominant factors that influence the engineering behaviour of the soil. Its assessment, which is traditionally based on the laboratory oedometer test, is not often satisfactory. The problem arises from inevitable sample disturbance and the high cost of a detailed investigation. These difficulties can be overcome by the use of in situ tests. The field vane test, the piezocone test, and the dilatometer test are three such methods that provide indirect means for the estimation of the OCR for clay deposits. A number of empirical correlations are available for this purpose. Calibration of these correlations against results of site investigation in Singapore and Malaysian marine clays reveals the usefulness of these test methods in profiling the OCR for Recent clay deposits. Key words: clay, in situ test, overconsolidation ratio, preconsolidation pressure, stress history.

Evaluation of in-situ saturation condition using dynamic cone penetration tests

2019 ◽  
Author(s):  
Hiroshi Nakazawa ◽  
Toshio Takagi ◽  
Hisao Hayashi ◽  
Koichi Nagao
Keyword(s):  
Cone Penetration ◽  
Saturation Condition ◽  
Cone Penetration Tests ◽  
Penetration Tests ◽  
Dynamic Cone Penetration

scholarly journals Modeling of light dynamic cone penetration test – Panda 3 ® in granular material by using 3D Discrete element method

2017 ◽  
Vol 140 ◽  
pp. 16003 ◽  
Author(s):  
Quoc Anh Tran ◽  
Bastien Chevalier ◽  
Miguel Benz ◽  
Pierre Breul ◽  
Roland Gourvès
Keyword(s):  
Discrete Element Method ◽  
Granular Material ◽  
Discrete Element ◽  
Cone Penetration Test ◽  
Penetration Test ◽  
Cone Penetration ◽  
Dynamic Cone Penetration Test ◽  
Dynamic Cone Penetration ◽  
Element Method
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