PMID- 38512575
OWN - NLM
STAT- MEDLINE
DCOM- 20240426
LR  - 20240502
IS  - 1614-7499 (Electronic)
IS  - 0944-1344 (Linking)
VI  - 31
IP  - 18
DP  - 2024 Apr
TI  - Effect of geomembrane liner on landfill stability under long-term loading: 
      interfacial shear test and numerical simulation.
PG  - 27345-27355
LID - 10.1007/s11356-024-32953-3 [doi]
AB  - Clay liners have been widely used in landfill engineering. However, large-scale 
      clay excavation causes secondary environmental damage. This study investigates 
      the feasibility of replacing clay liners with high-density polyethylene (HDPE) 
      geomembranes with different specifications and parameters. Laboratory interface 
      shear tests between municipal solid waste (MSW) samples of different ages and 
      geomembranes were conducted to study the influence of landfill age on interface 
      shear strength. Finite element method was adopted to compare the long-term 
      stability of landfills with HDPE geomembrane versus clay as intermediate liner. 
      The interfacial shear test results show that the cohesion of MSW increases in a 
      short term and then decreases with landfill age. The internal friction angle 
      exhibits an increasing trend with advancing age, however, the rate of its 
      increment declines with age. The rough accuracy of the film surface can increase 
      the interfacial shear strength between MSW. The simulation results show that, 
      unlike clay-lined landfills, the sliding surface of geomembrane-lined landfills 
      is discontinuous at the lining interface, which can delay the penetration of slip 
      surfaces and block the formation of slip zone in the landfill. In addition, the 
      maximum displacement of landfills with geomembrane is 10% lower than that with 
      clay, and the absolute displacement of slope toe decreases with the increase of 
      roughness at the interface of geomembrane. Compared with clay-lined landfills, 
      the overall stability safety factor increased by 18.5-30%. This study provides 
      references for landfill design and on-site stability evaluation, contributing to 
      enhanced long-term stability.
CI  - (c) 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, 
      part of Springer Nature.
FAU - Xia, Xiong
AU  - Xia X
AD  - School of Environmental Science and Engineering, Changzhou University, Changzhou, 
      213164, China.
AD  - School of Urban Construction, Changzhou University, Changzhou, 213164, China.
FAU - Pan, Ziqing
AU  - Pan Z
AUID- ORCID: 0009-0001-1085-2042
AD  - School of Environmental Science and Engineering, Changzhou University, Changzhou, 
      213164, China. 504271023@qq.com.
FAU - Qiu, Hongyong
AU  - Qiu H
AD  - School of Urban Construction, Changzhou University, Changzhou, 213164, China.
FAU - Xie, Xiankun
AU  - Xie X
AD  - School of Urban Construction, Changzhou University, Changzhou, 213164, China.
AD  - Guangdong Wuhua Economic Development Zone Management Committee Service Center, 
      Guangdong, 514400, China.
FAU - Guo, Kai
AU  - Guo K
AD  - School of Environmental Science and Engineering, Changzhou University, Changzhou, 
      213164, China.
LA  - eng
GR  - 2021M703507/China Postdoctoral Science Foundation/
GR  - BY202108/Joint Project of Industry-University-Research of Jiangsu Province/
PT  - Journal Article
DEP - 20240321
PL  - Germany
TA  - Environ Sci Pollut Res Int
JT  - Environmental science and pollution research international
JID - 9441769
RN  - 0 (Solid Waste)
RN  - 9002-88-4 (Polyethylene)
RN  - T1FAD4SS2M (Clay)
SB  - IM
MH  - *Waste Disposal Facilities
MH  - *Refuse Disposal
MH  - Solid Waste
MH  - Shear Strength
MH  - Polyethylene/chemistry
MH  - Clay/chemistry
OTO - NOTNLM
OT  - Age
OT  - HDPE geomembrane
OT  - Landfills
OT  - Soil-geomembrane interface shear
OT  - Stability
EDAT- 2024/03/21 18:45
MHDA- 2024/04/26 13:21
CRDT- 2024/03/21 12:18
PHST- 2023/10/23 00:00 [received]
PHST- 2024/03/12 00:00 [accepted]
PHST- 2024/04/26 13:21 [medline]
PHST- 2024/03/21 18:45 [pubmed]
PHST- 2024/03/21 12:18 [entrez]
AID - 10.1007/s11356-024-32953-3 [pii]
AID - 10.1007/s11356-024-32953-3 [doi]
PST - ppublish
SO  - Environ Sci Pollut Res Int. 2024 Apr;31(18):27345-27355. doi: 
      10.1007/s11356-024-32953-3. Epub 2024 Mar 21.