Results 31 to 40 of about 234 (181)

DETERMINING OF THE EQUIVALENT AND OPTIMUM DIAMETERS OF CONE-CYLINDER TIP WITH SOIL BROACHING SPURS

Nauka ta progres transportu, 2017
Purpose. Building of new railway tracks and facilities, repair and replacement of existent underground utilities and communications is related to the receipt of horizontal cavities in soil by trenchless method. A static soil broaching with a working body
S. V. Kravets, O. P. Posmitjukha, V. M. Suponyev   +2 more
doaj   +1 more source

Effects of Subsurface Water Infiltration Systems on Groundwater Table Dynamics in Drained Peat Soils

Hydrological Processes, Volume 39, Issue 12, December 2025.
The effects of subsurface water infiltration systems on groundwater table dynamics are captured in six hydrologically relevant parameters for five sites. Water infiltration systems, if applied correctly, reduce the amplitude in groundwater table fluctuations, most notably by raising water tables during dry periods.
Daniël van de Craats, Johan W. van Riel, Sanneke van Asselen, Siem Jansen, Ralf C. H. Aben, Rudi Hessel   +5 more
wiley   +1 more source

New method of trenchless cable replacement by the new HDD wash over technology [PDF]

Acta Montanistica Slovaca, 2007
An enormous amount of underground electricity and telecommunication cables have become time-worn technical defects or need a capacity increase. Thus, new lines need to be installed. In urban areas, even in smaller communities and in nature reserves, open
Hans-Joachim Bayer
doaj  

Experimental Study on the Properties of Controlled Low‐Strength Materials Prepared by Pipe Jacking Slag

Engineering Reports, Volume 7, Issue 9, September 2025.
To investigate the effects of water‐solid ratio, ash ratio, and fly ash to cement ratio (F/C) on the flow, water secretion rate, and compressive strength of controlled low‐strength materials based on urban pipe jacking waste soil. ABSTRACT As a byproduct of urban pipeline network construction, pipe jacking waste soil exhibits characteristics of massive
Jianchen Song, Xuebo Song, Feilun Luo, Liang Xiong   +3 more
wiley   +1 more source

Environmental Evaluation of VOC Emissions in CIPP Rehabilitation: Comparative Analysis of Resin Types and Curing Techniques

Pollutants
Aging underground pipeline infrastructure across the United States, including systems used for potable water supply, wastewater collection, and stormwater conveyance, has exceeded its intended service life, emphasizing the need for replacement or ...
Rasoul Adnan Abbas, Mohammad Najafi, Shima Zare, Sevda Jannatdoust   +3 more
doaj   +1 more source

Development status and thinking of oil and gas pipeline corrosion detection technology

You-qi chuyun, 2020
Regular internal and external detection on oil and gas pipelines is helpful for timely and accurate detection of pipeline corrosion defects, and to take appropriate maintenance and replacement measures and effectively reduce the occurrence probability of
Zhiping WU, Zhenhua CHEN, Lianshuang DAI, Yabo HU, Wuxi BI   +4 more
doaj   +1 more source

Bond Behavior between Concrete and Self-Expansion Polymer Material under Normal Pressures

Advances in Civil Engineering, 2021
Self-expansion polymer grouting technology is a new rapid trenchless method for repairing leakage and subsidence of underground concrete structures.
Xinxin Li, Fuming Wang, Hongyuan Fang, Dan Zheng, Yingchun Fu   +4 more
doaj   +1 more source

Bushfire Impact on Drinking Water Distribution Networks and Investigation Methods: A Review

Water Resources Research, Volume 61, Issue 3, March 2025.
Abstract Bushfire events can directly and indirectly impact drinking water distribution networks. Water authorities around the world have experienced compromised water supply and quality in the aftermath of recent bushfires, necessitating costly investigation and repair.
Vaughan Mitchell, Jinzhe Gong, Ellen Moon, Wenyan Wu   +3 more
wiley   +1 more source

Horizontal insulating barriers as a way to protect groundwater [PDF]

Proceedings of the International Association of Hydrological Sciences, 2018
Trenchless Technology of Forming Horizontal Insulating Barriers (TFHB) can be considered a method of groundwater protection against inflow of pollutants.
R. Cicha-Szot, K. Labus, S. Falkowicz, N. Madetko   +3 more
doaj   +1 more source

Improving the Accuracy of Flood Damage Assessments to Residential Structures via the Use of Experimental Data

Journal of Flood Risk Management, Volume 18, Issue 1, March 2025.
ABSTRACT The current practice of flood loss prediction presents limitations in accurately predicting building flood losses at multiple scales. While whole‐building estimates can more accurately predict high‐level losses (i.e., large groups of buildings), a significant analysis error is revealed with small‐scale (i.e., individual, or small groups of ...
Anna Katya Opel, Elizabeth Chisolm Matthews   +1 more
wiley   +1 more source