The Dynamic Analysis of Municipal Pipeline Under Shield Tunneling Construction Based on the ABAQUS Software
Issue:
Volume 4, Issue 6, December 2019
Pages:
94-99
Received:
6 July 2019
Accepted:
9 October 2019
Published:
16 December 2019
Abstract: Shield tunneling construction is the modern popular used model in underground pipelines. In this paper, finite numerical method based on ABAQUS software has been used to simulate the effect of shied tunneling construction on the underground pipelines, the effect between the pipeline and soil interface had been considered, the dynamic effect and response have been simulated for underground pipelines. Numerical results show that the tunnel depth, propelling force, pipe’s diameter and pipe’s depth have greater influence on the pipeline’s displacement. The rules and conclusions drawn in the paper can provide reference for the pipeline protection in similar projects in the future.
Abstract: Shield tunneling construction is the modern popular used model in underground pipelines. In this paper, finite numerical method based on ABAQUS software has been used to simulate the effect of shied tunneling construction on the underground pipelines, the effect between the pipeline and soil interface had been considered, the dynamic effect and re...
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Drainage and Water Logging in Pabna Municipality of Bangladesh: A Case Study
Mohammad Atauzzaman,
Muhammad Rokib Uddin,
Nanda Ram Barman
Issue:
Volume 4, Issue 6, December 2019
Pages:
100-106
Received:
16 December 2019
Accepted:
4 January 2020
Published:
21 January 2020
Abstract: The increasing quantity of sewage flow is a growing environmental problem in many developing cities like Pabna. Pabna bears a moderate and pleasant climate and the rainy season comes here at the end of June and stays up to September. People have been facing water logging problem particularly during rainy season for several decades. Improper drainage facility causes water logging, thus leading to serious public health risk and environmental degradation. This paper presents the existing drainage system and water logging problem of ward no. 5 of Pabna municipality. The valuable information was collected from the householders through questionnaire and field visit to the study area during May, 2018 to April, 2019. The ward map, sewer network maps, rainfall data, etc. were collected from Pabna Municipality and Bangladesh Water Development Board. The sewer network maps were superimposed on GIS-based map of Pabna city. The collected information and data were then analysed. The existing sewer system would be capable to accommodate the present and future (up to 2050) sewage flows and is not able to accommodate the storm flows generated from the study area. However the capacity of sewer decreases due to sedimentation of sludge, accumulation of solid waste, vegetation in drains, discontinuity of drains, etc., thus causing water logging in the study area. About 80% of the study area is being affected by water logging in the rainy season every year. The study helps understand the nature, type and magnitude of drainage and water logging problem faced by the dwellers of Pabna municipality.
Abstract: The increasing quantity of sewage flow is a growing environmental problem in many developing cities like Pabna. Pabna bears a moderate and pleasant climate and the rainy season comes here at the end of June and stays up to September. People have been facing water logging problem particularly during rainy season for several decades. Improper drainag...
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