Experimental Study on Mechanical Properties of Oily Sludge Residue-Lime Modified Loess

ZHANG Yu; LIU Keji; WANG Guanqiao; XU Chenyang; HUANG Yi; HU Mengchen; LIAO Jie

doi:10.3724/j.gyjzG23091411

Volume 56 Issue 3

Mar. 2026

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ZHANG Yu, LIU Keji, WANG Guanqiao, XU Chenyang, HUANG Yi, HU Mengchen, LIAO Jie. Experimental Study on Mechanical Properties of Oily Sludge Residue-Lime Modified Loess[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(3): 235-243. doi: 10.3724/j.gyjzG23091411

Citation:

ZHANG Yu, LIU Keji, WANG Guanqiao, XU Chenyang, HUANG Yi, HU Mengchen, LIAO Jie. Experimental Study on Mechanical Properties of Oily Sludge Residue-Lime Modified Loess[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(3): 235-243. doi: 10.3724/j.gyjzG23091411

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Experimental Study on Mechanical Properties of Oily Sludge Residue-Lime Modified Loess

doi: 10.3724/j.gyjzG23091411

1. Civil and Architecture Engineering, Xi'an Technological University, Xi'an 710021, China;
2. Environmental Pollution Control and Reservoir Protection Technology of Oil and Gas Fields, Xi'an 710065, China

Received Date: 2023-09-14
Available Online: 2026-04-11
Publish Date: 2026-03-20

Abstract

Abstract

Oily sludge is an industrial waste generated from oil field exploitation， petroleum refining， transportation， and usage. Every year， a great amount of oily sludge is produced worldwide， which will bring huge storage cost and cause serious environmental pollution problems if not properly treated. In this article， we carried out a trial study to mix the oily sludge after pyrolysis and lime with loess， and applied it to filling engineering to utilize the residue. The effects of different compactness， water content， and consolidation confining pressure on the mechanical properties of oily sludge-lime loess under the optimal mix ratio were studied. The research results showed that compaction degree， water content， and confining pressure all had a great influence on the stress-strain curve. Under the conditions of high compaction， low water content， and low confining pressure， most of the stress-strain curves were strain softening curves. With the increase of water content and confining pressure， the degree of compaction decreased， and the stress-strain curve gradually transitions from softening type to hardening type. And with the increase of compaction degree and decrease of the water content， both the cohesion and internal friction angle increased. The soil showed shear slip failure under low confining pressure and low water content， and lateral expansion failure under other conditions. The research results can provide theoretical and experimental support for the treatment and engineering application of oily sludge residue.
- oily sludge residue,
- loess,
- mechanical properties,
- stress-strain relationship,
- strength

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References(19)

References

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