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tunnel damage

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Journal Article
Published: 01 November 2016
Environmental and Engineering Geoscience (2016) 22 (4): 352-366.
...Baotian Xu; Jianfei Qiu; Qian Sun; Changhong Yan; Bu Xu; Shi Liu; Canhui Che ABSTRACT A case is presented about damages due to leakage and inrushing water that developed in the segmented pre-casted concrete liner of a shield tunnel under the Yangtze River. Various possible causes were considered...
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Journal Article
Published: 01 September 2012
Journal of Environmental and Engineering Geophysics (2012) 17 (3): 159-169.
... the condition of a water tunnel built to channel a river under a mountain road. The tunnel is lined with 60–80 cm thick concrete and has a semicircular cross-section with a diameter that varies between 3 m and 4 m. The concrete structure has been damaged from erosion beneath the concrete floor, creating...
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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP415.7
EISBN: 9781862397132
... in diameter and 13.00 m in length, excavated in the ultra-low-permeable Opalinus Clay. During the tunnel construction, the rock zone near the tunnel wall was damaged, giving rise to an excavation damage zone (EDZ) around the tunnel. After drilling the tunnel, a steel liner was placed along the first 6.00 m...
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Series: Geological Society, London, Special Publications
Published: 01 January 2014
DOI: 10.1144/SP400.30
EISBN: 9781862396760
.../Haute-Marne Underground Research Laboratory (URL). This experiment, called CDZ (Compression of the Damaged Zone), is dedicated to studying the effect of mechanical compression within the induced fractures zone of the Callovo-Oxfordian claystone (COx). An unequalled level of knowledge in the 3D structure...
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Journal Article
Published: 01 November 1984
Environmental and Engineering Geoscience (1984) xxi (4): 495-507.
... across the nearby Garlock fault. Two zones of surface cracking and Assuring, one 732 m long and the other 686 m long, intersect the road. The primary damage, largely erosional, included open fissures up to 30 cm wide, and open and collapsed tunnels with cross-sectional dimensions of 1 to 2 m. Repair...
Journal Article
Published: 19 August 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2019) qjegh2019-055.
...Mohsen Golian; Homayoon Katibeh; Vijay P. Singh; Kaveh Ostad-Ali-Askari; Hamed Tavasoli Rostami Abstract The decline or drying up of groundwater sources near a tunnel route is damaging to groundwater users. Therefore, forecasting the impact of a tunnel on nearby groundwater sources is a challenging...
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Published: 01 January 2019
DOI: 10.1144/SP473.12
EISBN: 9781786204189
.... Prior to Japanese occupation in December 1941, the British detonated charges to collapse the tunnel to deny its use as an invasion route. Following Japanese defeat in 1945 and return to British government, the tunnel was re-excavated and the damaged sections were supported using steel arches based...
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Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP443.18
EISBN: 9781786203267
... and permeability measurements. These boreholes were orientated in different directions with respect to the orientation of the tunnel and the bedding plane in order to find the bedding dependency of the excavation damaged zone (EDZ). Four of these were orientated perpendicular to the bedding plane because breakouts...
Journal Article
Journal: Geophysics
Published: 05 October 2010
Geophysics (2010) 75 (5): Q21-Q34.
... the lithostatic pressure in the rock and the atmospheric pressure in the tunnel. The extent of a damage zone depends on the type of host rock, the geomechanical conditions, and the excavation method ( Barton, 2006 ). It may be as small as a few centimeters to as large as several shaft/tunnel radii, and its...
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Journal Article
Journal: Geophysics
Published: 26 October 2007
Geophysics (2007) 72 (6): T67-T79.
... suggests that, for the considered frequency range and tunnel diameter, the forward-propagating S-waves mainly originate from the scattering of the Rayleigh wave at the tunnel face. To study the effects of dispersion caused by the EDZ, we introduce a damage zone around the tunnel having an extension...
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Published: 01 January 2019
DOI: 10.1144/SP473.11
EISBN: 9781786204189
... to tunnels but these needed to be guided to the target to be effective and minimize collateral damage. To deter airstrikes and thwart ground forces advancing on Mosul, IS set fire to oil wells in the nearby Qayyara and Najma oil fields ( Fig. 3 ) that lasted from May 2016 until March 2017 ( Bulmer 2018...
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Journal Article
Published: 01 August 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (3): 252-334.
... of the east side of the tunnel, over four adjacent arches, occurred in an area of particularly friable rock (engineer’s description; actually a heavily slickensided multiple fault zone subparallel to the excavation). Ground settlement of about 50 mm some 30 m above the tunnel crown caused severe damage...
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Image
Location of <b>damage</b> to the <b>tunnel</b> during construction.
Published: 01 November 2016
Figure 3. Location of damage to the tunnel during construction.
Journal Article
Published: 01 May 1986
Environmental and Engineering Geoscience (1986) xxiii (2): 197-208.
... to San Francisco consisted of two tunnels joined at the brick forebay; one tunnel extends 2,820 ft to the east under Bald Hill on Buri Buri Ridge, and the other tunnel intersects the lake bottom about 250 ft west of the forebay. In 1897 a second intake was added to the system, also joining the original...
Journal Article
Journal: Geophysics
Published: 11 June 2007
Geophysics (2007) 72 (4): G39-G44.
...Lorenzo Petronio; Flavio Poletto; Andrea Schleifer Abstract Predicting geologic interfaces ahead of a tunnel front is of major importance when boring tunnels. Unexpected variations in ground properties can cause problems for tunnel-boring advance and risk for human safety. The tunnel-seismic-while...
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Journal Article
Published: 01 January 2002
Journal of Paleontology (2002) 76 (1): 181-184.
... to the outer volution and lies in the area of the tunnel ( Fig. 1.3 ). The tunnel is an open zone of weakness of the test that is bordered by either the chomata or fluted septa (see Hageman and Kaesler, 1998 , fig. 1). Damage in the polar region is commonly limited to one pole, and we saw no preference...
FIGURES
Journal Article
Journal: Geosphere
Published: 07 June 2019
Geosphere (2019) 15 (4): 1140-1163.
... of debris flows that mobilized ∼680,000 m 3 of sediment (including boulders >6 m in diameter) at velocities up to 4 m/s down coalescing urbanized alluvial fans. The resulting destruction (including 23 fatalities, at least 167 injuries, and 408 damaged homes) underscores the need for improved...
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Journal Article
Journal: Clay Minerals
Published: 01 April 2014
Clay Minerals (2014) 49 (2): 147-164.
...M. J. Wilson; L. Wilson; I. Patey Abstract The influence of individual clay minerals on formation damage of reservoir sandstones is reviewed, mainly through the mechanism of fine particle dispersion and migration leading to the accumulation and blockage of pore throats and significant reduction...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.261.01.02
EISBN: 9781862395091
... pre-failure damage ( Lockner et al. 1991 ; Lei et al. 2004). Therefore, studies focusing on both fracture dynamics and pre-failure damage are a subject of widespread interest, having relevance for several applications, such as safe design of deep tunnelling (e.g. Diederichs et al. 2004...
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Image
Inspection of the <b>tunnel</b>. a) and b) Examples of <b>damages</b> of the concrete pav...
Published: 01 September 2012
Figure 4 Inspection of the tunnel. a) and b) Examples of damages of the concrete paving created by water erosion below the tunnel floor. Note also the very dangerous erosive actions of the water below the lateral walls of the tunnel. c) and d) Examples of waterfalls and water pools caused