Application of Crosshole Sonic Logging in Foundation Pile Integrity Detection

2012 ◽  
Vol 487 ◽  
pp. 139-142
Author(s):  
Xiao Xin Yan ◽  
Fei Yang ◽  
Wei Tao Li ◽  
Ai Hua Li
Keyword(s):  
Basic Theory ◽  
Detection Technology ◽  
Foundation Pile ◽  
Sonic Logging ◽  
Engineering Projects ◽  
Pile Integrity

This article introduces the application of crosshole sonic logging in foundation pile integrity detection and the basic theory and application of crosshole sonic logging, and narrates the detection technology and way to judge detection results by engineering projects.

scholarly journals Sonic Logging Vs PIT untuk Mendeteksi Integritas Pondasi Tiang

2011 ◽  
Vol 2 (2) ◽  
pp. 1031
Author(s):  
Gouw Tjie Liong
Keyword(s):  
Basic Theory ◽  
Load Testing ◽  
Destructive Testing ◽  
Pile Capacity ◽  
Advantages And Disadvantages ◽  
Integrity Testing ◽  
First Category ◽  
Sonic Logging ◽  
Second Category ◽  
Pile Integrity

Non destructive testing on piles can be divided into two main categories. The first category is to find out the integrity of the piles, such as pile integrity testing (PIT) and sonic logging. The second category is to find out the pile capacity, such as dynamic load testing/pile driving analysis. Since the early 1990s, the application of the tests was brought into practice and gained its popularity in Indonesia. However, the basic theory behind the testing has not been widely disseminated. This study tries to elaborate the first category of the testing, i.e. the pile integrity testing and sonic logging. The basic theory, the advantages and disadvantages, the application, the limitation and the interpretation of those techniques shall be discussed. Comparison on case studies of those testing methods also shall be given. 

scholarly journals STUDI INTEGRITAS TIANG DENGAN CROSSHOLE SONIC LOGGING, CROSSHOLE TOMOGRAPHY, PILE INTEGRITY TEST, DAN PARALLEL SEISMIC

2019 ◽  
Vol 2 (4) ◽  
pp. 143
Author(s):  
Fanny Oktarina ◽  
Sunarjo Leman ◽  
Ali Iskandar
Keyword(s):  
Integrity Test ◽  
Sonic Logging ◽  
Pile Integrity

Fondasi merupakan unsur yang sangat penting dalam suatu bangunan. Suatu bangunan akan mengalami kegagalan struktur jika fondasi yang direncanakan tidak memenuhi persyaratan meskipun struktur atasnya telah direncanakan dengan baik. Kegagalan struktur yang dimaksud adalah bahan yang digunakan untuk menyalurkan beban bangunan harus cukup kuat dan tidak mengalami kerusakan bahan. Demi mencegah kegagalan struktur, dilakukan uji integritas pada tiang yang tidak merusak struktur fondasi. Uji integritas yang akan dilakukan adalah Crosshole Sonic Logging, Crosshole Tomography, Pile Integrity Test, dan Parallel Seismic. Dari hasil pengujian integritas pada tiang tersebut didapatkan kedalaman tiang dan letak kerusakan tiang.

scholarly journals RECENT ADVANCES OF CAST-IN-SITU PILE INTEGRITY TEST IN INDONESIA

2018 ◽  
Vol 1 (1) ◽  
pp. 23
Author(s):  
Aksan Kawanda
Keyword(s):  
Soil Condition ◽  
Deep Foundations ◽  
Integrity Test ◽  
Recent Advances ◽  
Sonic Logging ◽  
Non Destructive ◽  
Pile Integrity ◽  
Thermal Integrity

<p class="Abstract"><em>Deep foundations, especially cast-in-situ piles became popular and key support for most structures in limited land, so as Jakarta. The piles quality became highly dependent on the soil condition and the skill of the contactors. It’s underneath the ground and this makes inspection to its quality became much more difficult. There is many methods for inspection, either by destructive method, i.e. coring, to non-destructive method like low strain integrity test (PIT), cross-hole sonic logging (CSL) and latest is thermal integrity profiler (TIP). Some advances in applicating and evaluating the pile integrity discussed here as well as its advantages and limitations.</em></p>

On-line image readout in CTEM

1994 ◽  
Vol 52 ◽  
pp. 400-401
Author(s):  
K.-H. Herrmann ◽  
W. D. Rau ◽  
R. Sikeler
Keyword(s):  
Primary Electron ◽  
Digital Information ◽  
Electron Hole ◽  
Detection Technology ◽  
Long Time ◽  
On Line ◽  
Electron Image ◽  
Optical Transfer ◽  
Detection Quantum Efficiency ◽  
Technical Solutions

Quantitative recording of electron patterns and their rapid conversion into digital information is an outstanding goal which the photoplate fails to solve satisfactorily. For a long time, LLL-TV cameras have been used for EM adjustment but due to their inferior pixel number they were never a real alternative to the photoplate. This situation has changed with the availability of scientific grade slow-scan charged coupled devices (CCD) with pixel numbers exceeding 106, photometric accuracy and, by Peltier cooling, both excellent storage and noise figures previously inaccessible in image detection technology. Again the electron image is converted into a photon image fed to the CCD by some light optical transfer link. Subsequently, some technical solutions are discussed using the detection quantum efficiency (DQE), resolution, pixel number and exposure range as figures of merit.A key quantity is the number of electron-hole pairs released in the CCD sensor by a single primary electron (PE) which can be estimated from the energy deposit ΔE in the scintillator,

A4. UNRWA, IMPACT OF THE FIRST PHASE OF THE SECURITY BARRIER ON THE QALQILYA, TULKARM, AND JENIN DISTRICTS, GAZA CITY, JULY 2003 (EXCERPTS).

2003 ◽  
Vol 33 (1) ◽  
pp. 153-160
Keyword(s):  
Civil Engineering ◽  
West Bank ◽  
The West ◽  
Full Report ◽  
The World ◽  
Aid Coordination ◽  
President Bush ◽  
Engineering Projects ◽  
The U.S

The separation wall, one of the largest civil engineering projects in Israel's history, has been criticized even by the U.S. administration, with Condoleezza Rice stating at the end of June 2003 that it ““arouses our [U.S.] deep concern”” and President Bush on 25 July calling it ““a problem”” and noting that ““it is very difficult to develop confidence between the Palestinians and Israel with a wall snaking through the West Bank.”” A number of reports have already been issued concerning the wall, including reports by B'Tselem (available at www.btselem.org), the UN Office for the Coordination of Humanitarian Affairs (available at www.palestinianaid.info), and the World Bank's Local Aid Coordination Committee (LACC; also available at www.palestinianaid.info). UNRWA's report focuses on the segment of the wall already completed and is based on field visits to the areas affected by the barriers, with a special emphasis on localities with registered refugees. Notes have been omitted due to space constraints. The full report is available online at www.un.org/unrwa.

Sign in / Sign up

Export Citation Format

Share Document