Csl testing for drilled shafts
WebUse Schedule 40 black steel pipes for access tubes for crosshole sonic logging (CSL). Provide CSL tubes with an inside diameter of at least 1.5". Use CSL tubes with a round, regular inside diameter free of defects and obstructions, including any pipe joints, in order to permit free, unobstructed passage of probes for CSL testing. Webdrilled shaft concrete at 14 days. Qualifications. A consulting firm experienced in CSL testing shall conduct this work. The CSL consulting firm shall be a company independent from the Contractor with a minimum of 3 years of experience in performing CSL testing …
Csl testing for drilled shafts
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WebJob responsibilities include/training provided: 1) Set up and operation of downhole video system for inspection of drilled shaft foundation construction (Shaft Inspection Device). 2) Set up and performance of field testing of concrete drilled shaft foundations utilizing the Crosshole Sonic Logging (CSL) method. 3) Perform Drilled Shaft Inspection. WebDec 2, 2024 · To accomplish these objectives, a drilled shaft sample of around 100 m long pile with 2.5 m diameter was constructed with arrangement of cross hole sonic pipe arrangement (Four steel Pipes of 40 mm diameter). and O-Cell arrangement for CSL …
WebJun 11, 2024 · This work consists of evaluating the structural integrity of drilled shafts using the crosshole sonic logging (CSL) test method. The work also consists of furnishing and installing access tubes required to conduct the testing, and core drilling of concrete to … WebA companion of the CSL test is the Singlehole Sonic Logging (SSL) test, which can be performed in one access tube or corehole to check the integrity of the concrete foun-dation around the tube in a fashion similar to Gamma-Gamma nuclear density tests. CSL tests …
WebJan 9, 2024 · This is because the T.I.P. test is based upon not only how a drilled shaft heats from the curing cement by also how that heat is retained or dissipated along the top and bottom boundaries of the shaft and … WebThe CSL test is a downhole method for quality assurance testing of drilled shaft foundations and concrete slurry walls. Access tubes, typically PVC or steel, must be cast-in-place in the concrete during construction or coreholes must be cut to permit logging as …
WebThe project specifications regarding drilled shaft CSL testing specified the following: · The CSL access tubes were to be comprised of 5.1 cm (2 inch) Schedule 4 0 steel piping. · The CSL access tubes were to be within 15.2cm ± 7.6cm (6inches ± 3inches) of the shaft tip and extend a minimum of 7.6cm (3inches) from the shaft top. ...
Web455-17.6.1 Cross-Hole Sonic Logging (CSL) Tests: Perform all CSL testing in accordance with ASTM D6760. Test all drilled shafts in bridge bents or piers considered nonredundant in the Plans, using CSL. For all other drilled shafts, perform CSL testing only on drilled shafts selected by the Engineer. The minimum number of shafts tested … greenhalgh family historyWebtest drilled shaft load specified in the plans. 1.3 The location of the test drilled shaft (non-production) shall be as indicated in the plans. The test drilled shaft shall maintain a minimum distance of 25 feet from any foundation element of any future bent. The Contractor shall submit the proposed location to the Department for approval. flutter function return booleanWebAug 1, 2016 · The crosshole sonic logging measurement to measure the quality of bored piles is presented in this paper. The development of crosshole measurement system on physical bored pile modeling was... greenhalgh financial services limitedflutter function return widgetCrosshole sonic logging (CSL) is a method to determine the structural integrity of drilled shafts and other concrete piles. The CSL method is considered to be more accurate than sonic echo testing in the determination of structural soundness of concrete within the drilled shaft inside of the rebar cage. This method provides little indication of concrete soundness outside the cage. greenhalghgillian4 gmail.comWebD 6760. Test all drilled shafts in bridge bents or piers considered non-redundant in the plans, using CSL. For all other drilled shafts, perform CSL testing only on drilled shafts selected by the Engineer. The minimum number of shafts tested is the number of shafts indicated in the plans. The Engineer may increase the number shafts tested as ... flutter function return valueWebJul 28, 2024 · Cross-hole Sonic Logging (CSL) techniques have been designed to assess the quality of piles, drilled shafts, and slurry trench walls after installation, without destroying what has been built and without development of more efficient and reliable constructed systems. greenhalgh financial services ltd