Sonic logging while drillingshear answers schlumberger. Wsjtx modes by their very nature are not usually used for contesting. Play provides a default logger with the class play. Crosshole sonic logging of secant pile walls a feasibilty study conference paper pdf available january 2010 with 3,195 reads how we measure reads. The nxlog community edition is an open source log collection tool available at no cost.
Sample specification for crosshole sonic logging csl. Cross hole sonic loggingtest software cha 1 erandi h. Crosshole sonic logging csl is a method to verify 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. Dedicated to several 30 gauge prototype logging railroads. This work also includes analysis of the csl data, preparation of reports summarizing the csl data, and investigating anomalies identified in the csl data. It is available for various platforms including windows and gnulinux. Crosshole sonic logging and lowstrain impact echo integrity testing were both speci. Use a minimum of 1 noncorrosive circular spacer per 30 inches of circumference of the reinforcing steel cage, within 5 to 10 feet of the bottom and top, and at intervals not to exceed 10 feet vertically. Once thats out of the way, the very first thing youll see is the following notice. The one or two channel crosshole sonic logging system, csl, consists of several basic components packaged into a padded carrying case plus the freedom data pc in its own case. Principles and applications of well logging hongqi liu springer.
A transmitter lowered down one tube sends a high frequency signal to a receiver in another in another tube. Crosshole sonic logging csl, also known as cross sonic logging or the sonic logging test is the most accurate and reliable technique for assessing the integrity of deep foundation elements such as newly placed concrete drilled shafts and slurry walls, particularly when drilling below groundwater level. Once you have downloaded and installed the program, youre ready to start it for the first time. Stress waves, emitted in one tube are received in another one if concrete quality is satisfactory transmit receive. The cross hole analyzer cha uses cross hole sonic logging csl technology to determine the quality of concrete between pairs of pvc or steel tubes preinstalled in drilled shafts. Fill tubes with water pull probes from bottom to top put probes in bottom of tubes. N1mm setup general logging here are quick steps to set up n1mm for logging during your w1aw4 in al operation. The proposed use of ischebeck titan t7356 cslhollow threaded rebar for cross hole sonic logging access tubes combined with longitudinal concrete reinforcing in drilled shafts patent pending is discussed as an alternative method of. Even when defects are indeed encountered, they may not always be. Defects present in a pile may not be encountered during a crosshole sonic logging csl test.
Tomography software for crosshole sonic logging csl data quality assurance for deep foundations what is tomography. Since is constant with respect to, the derivative of with respect to is. This allows qa analysis beyond the perimeter of the rebar cage giving a complete crosssectional analysis. Scribd is the worlds largest social reading and publishing site. Crosshole sonic logging is the most accurate and reliable technique for assessing the integrity of.
These tubes are usually attached to the reinforcement cage along the full length of the shafts. Crosshole sonic ultrasonic logging csl system for pile and deep foundation testing using astm d complete control from panasonic rugged tablet with dedicated android application. The tabletlike champxv continues the tradition of light but rugged crosshole analyzers. Experiences with crosshole sonic logging and concrete coring for verification of drilled shaft integrity, adsc geo. A transmitter lowered down one tube sends a high frequency signal to a. The testing is being conducted over an estimated period of 16 months. Crosshole sonic logging tests for qa of newly placed drilled shafts and diaphragm walls. If you are seeking information about file extensions, then you are in the right place at right time. Crosshole sonic logging how is crosshole sonic logging. These steps only address how to set up logging and create an adif log file for submission. Sonic logging ssl as presented in the figure to the right, provides additional information regarding concrete quality around the vicinity of an individual tube. This master thesis deals with pile integrity testing in general and singlehole sonic logging of bored piles in particular.
Headquartered in lake forest, ca, boundary devices is an iso9001 certified nxp proven partner that has completed thousands of successful projects with the i. Comparing crosshole sonic logging and lowstrain integrity testing results white, b. Crosshole sonic logging csl, csl tomography, gammagamma density logging, single hole sonic logging, sonic echoimpulse response, ultraseismic profiling, ultrasonic pulse velocity, impact echo, ground penetrating radar gpr, spectral analysis of surface waves, acoustic emissions, radiography. Geoinstitute asce specialty conference april 9 12, 2000 university of massachusetts, amherst defect detection and examination of large drilled shafts using a new crosshole sonic logging system les r. The analysis is based on the detection of shear wave split ting in azimuthally anisotropic. Read here what the nm2 file is, and what application you need to open or convert it.
This work shall consist of furnishing and installing materials and equipment necessary to install access ducts in all drilled shafts of structures identified on the plans, and to perform crosshole sonic logging csl testing of. In order to fully evaluate shaft integrity using low strain integrity testing results, a. Public roads peering into the unknown, mayjun 2009. The original survey results as well as necessary calibration files have. These locks will double the capacity of panama canal and allow 1,200 foot long ships to pass across the isthmus. Evtx is a proprietary binary format and only the windows eventlog api can write this. After calculating energy, the next logical step is to calculate economics.
This method provides little indication of concrete soundness outside the cage. Construction quality assurancequality control technical conference, dallas nov 2005. As part of this expansion, a new bridge was required on the atlantic side entrance of the canal. Like other openstack projects, identity uses the python logging module, which includes extensive configuration options that let you define the output levels and formats.
What do the xintercepts and maximum value of the graph represent. Crosshole sonic logging, ndt equipment, olson instruments. Petrophysical and temperature logging in the icdp aig10 borehole. Therefore there is no real reason to support that program in jtalertx. Crosshole sonic logging csl is a test used to establish concrete integrity.
Sonic logs, also known as sonic travel time logs or slowness logs, rely on the properties. Technical note hollow threaded rebar for cross hole sonic. The engineer will measure each completed and accepted sonic test, at contract locations and added locations, per shaft i. It can be accessed by 4wd vehicle, utvs, quads, dirt bikes, or mountain bikes. Comparing crosshole sonic logging and lowstrain integrity. The padded case stores the hydrophones, depth wheel, tripod, and cables. Well seismic surveying and acoustic logging velocity of compression waves is a common and relatively wellestablished practice. A guide to core logging for rock engineering 2 proceedings of the symposium on exploration for rock engineering johannesburg november 1976. Crosshole sonic logging free download as powerpoint presentation. Since the session is currently receiving more files we have to wait to move it. The first set of sonic tests will be paid for at the contract price. Loggers, railroads and pine logging and railroading in and around the land of lassen shay photos of fruit growers supply co. A session in the moving state cannot be moved to another project since a move is pending on this session. The crosshole sonic logging csl measurement system to measure the quality of physical model of bored pile article pdf available in journal of physics conference series 7391.
A new lwd acoustic tool measures shear wave data in formations where this was previously impossible, and engineers are using this information to drill with. It may be used for crosshole sonic logging csl of drilled shafts or single hole sonic logging ssl of smaller augered castinplace piles. A pdf version of this document can be downloaded from. Geared locomotive sites geared steam locomotive works. The log corral trail resides in tonto national forest. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. The csl data is being acquired with an olson sonic crosshole logging system in accordance with relevant astmd676008 standards.
A sample logging file is available with the project in the etcnf. Gonzalez and yucheng low and haijie gu and danny bickson and carlos guestrin, title powergraph. What links here related changes upload file special pages permanent link page. Sonic logging provides a method of assessing the homogeneity of concrete in piles or other mass foundation such as diaphragm walls. Differentiate using the power rule which states that is where. Fhwa engineers are using geophysical investigations to characterize subsurface conditions. Theme t 12 field testing instrumentation and monitoring. Page 71 86 a distinction is drawn between the borehole log and the corelog.
By the sum rule, the derivative of with respect to is. The nxlog community edition is used by thousands worldwide from small startup companies to large security enterprises and has over 70,000 downloads to date. Gfz and icdp osg performed two logging campaigns with gfz standard logging. Crosshole sonic logging csl, also known as ultrasonic testing, is an indirect, nondestructive imaging method for detecting defects inside the rebar cage of a. Oshikoto region ohangwena region eenhana ss eembaxu cs eengedjo ss edundja cs ekangolinene cs okatope cs onanghulo cs ongenga sp ondobe cs ongha ss oshela sss oshikunde ss ponhofi sss shituwa cs uukelo cs omusati region ashipala ss david sheehama ss dr kleopas dumeni cs. Its not a hard core trail, but is a scenic, challenging and fun trail. Crosshole sonic logging how is crosshole sonic logging abbreviated.
Crosshole sonic logging testing of drilled shafts effective. Reliability evaluation of crosshole sonic logging for. Public roads peering into the unknown, mayjun 2009 fhwa. Peering into the unknown by amit armstrong, roger surdahl, and h.
What are the intervals where the function is increasing and decreasing, and. Company profile, information and contact info for r clauson logging ltd. Performance verification of constructed geotechnical facilities amherst 2000. Sonic travel time slowness logs crains petrophysical handbook. All sonic logs need a liquid filled borehole to operate properly. Sonic logging is a well logging tool that provides a formations interval transit time, designated. If not, please consult the n1mm online documentation. Facebooks distributed data store for the social graph. The companys filing status is listed as inactive and its file number is 17052182.
Tomography is a mathematical procedure that is applied to crosshole sonic logging csl data, providing the user with a visual image of a shafts internal defects. Crosshole sonic logging geoview gpr boston geoview. Since most java libraries use log4j or a wrapper able to use log4j as a backend, you can easily configure logging that is wellsuited to your application. The borehole log includes a description of relevant data applicable to the drilling of the borehole and to the core recovered. This work shall be according to illinois modified astm d6760. Sign up for facebook today to discover local businesses near you. Includes 2 hydrophones for testing one tube pair per log pull, in addition to the system componeincludes the csl software, written and tested at olson instruments corporate office in colorado, usa. Mxbased sbcs and soms for the general embedded market. Khamis haramy, fhwa denver 2008 slide courtesy of pdi. Reliability evaluation of crosshole sonic logging for bored. We introduce a simple data model and api tailored for serving the social graph, and tao, an implementation of this model. The csl test involves lowering ultrasonic probes through. Integrity testing of concrete deep foundations by ultrasonic crosshole testing1. Evaluation of pile integrity using cross hole sonic logging testing 993 3.
Still small enough to be portable, the champxv features a larger color. A new set of locks is being installed along the panama canal. Data acquisition creating a document to acquire data 3 file new project 4. Reliability evaluation of crosshole sonic logging for bored pile integrity d. Performance verification of constructed geotechnical. Tao is a geographically distributed data store that provides efficient and timely access to the social graph for facebooks demanding workload using a fixed set of queries.
A sample logging file is available with the project in the etc logging. Up until now it has been possible to enter data into trace without any sort of customization. Sonic logging has no inherent limitations on penetration depth of the size or shape of the structure which can be tested. Geoview was chosen to test the integrity of the bridges concrete foundations using crosshole sonic logging csl. The csl test involves lowering ultrasonic probes through access tubes along the length of the foundation element and as the probes are pulled to the surface a data processor records the passage of. Pdf the crosshole sonic logging csl measurement system. Kenter,2 and ad kohnen2 abstract acoustic properties pwave velocities, densities, and porosities and insoluble residues were measured at in situ pressures.
The next wave, usually, to arrive is the transverse or shear wave s. Just because evtx can not be opened with a text viewer does not mean your data is more secure. By sending ultrasonic pulses through concrete from one probe to another probes located in parallel tubes, the csl procedure inspects the drilled shaft structural integrity of the concrete between the tubes, and extent and location of defects, if any. The crosshole sonic logging system csl1 consists of 4. Cross hole analyzersoftware step 1 data acquisition step 2 data editing step 3 report preparation 2 3. The varied terrain adds to its uniqueness and makes a great day run or overnight stay lakeside. Drilled shafts are prepared for i ntegrity testing by csl during their construction by installation of at least three tubes with a minimum inside diameter of 38mm 1. The crosshole sonic logging system csl1 consists of 4 basic components for most testing applications. The sonic access tubes do not contribute to the structural capacity of the drilled shaft. Assessing drilled shaft integrity with crosshole sonic logging. It is assumed you are familiar with setting up message buffers etc. A session in the receiving state cannot be moved to another project. Pdf crosshole sonic logging of secant pile walls a. Technical note hollow threaded rebar for cross hole.
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