Results 21 to 30 of about 1,604,363 (291)

Identifying Collapsible Soils from Seismic Cone (SCPT): A Qualitative Approach

open access: yesBuildings, 2023
Collapsible soils are unsaturated low-density soils that undergo abrupt settlement when flooded without any increase in the in-situ stress level. The first stage of the site characterization is identifying collapsible soils, since these are problematic ...
Breno Padovezi Rocha   +4 more
doaj   +1 more source

In-situ evaluation of collapsible loess through time-domain reflectometry

open access: yesYantu gongcheng xuebao, 2022
It is urgent to propose a new technique for the in-situ evaluation of collapsible loess, as the existing methods are time- and cost-consuming, and may lead to inevitable sampling disturbance.
MU Qing-yi 1, 2, 4, ZHENG Jian-guo 3, 4, YU Yong-tang 3, 4, MENG Long-long 1, LIU Fen-liang 1
doaj   +1 more source

Soil–water characteristic curve of unsaturated collapsible soils

open access: yesJournal of the Mechanical Behavior of Materials, 2023
Collapsible soils are almost found in unsaturated states and involved significant engineering problems. Geotechnical challenges of such soils are represented by the hydro-mechanical behaviour during wetting–drying cycles due to the humidity and climate ...
Al-Obaidi Qasim A., Schanz Tom
doaj   +1 more source

A discussion of the test pressure of collapsible coefficient for Q2 loess

open access: yesShuiwen dizhi gongcheng dizhi, 2023
Collapsible coefficient is an index to evaluate loess collapsibility, which is measured by laboratory test with collected intact samples. Collapsible coefficient varies with normal pressure loaded in test.
Tonglu LI   +6 more
doaj   +1 more source

Earth Pressures of Overconsolidated Collapsible Soil Subjected to Inundation [PDF]

open access: yes, 2018
Collapsible soils are known as problematic soils, which can be found in many regions around the world. Collapsible soils possess considerable strength when they are dry; however, when they are inundated, they lose their strength and exhibit excessive ...
Nguyen, Phuoc Huy Nhut
core   +3 more sources

The Study of the Effect of Drainage Conditions on the Collapse Potential of Soil [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی
Collapsible soils are one of the problematic soils, as they exhibit good stability in dry conditions but undergo sudden and significant settle-ments upon water entry.
Javad Mahmoudi, Reza Pourhosseini
doaj   +1 more source

Experimental study on construction parameters of collapsible loess foundation treated by vibrating rod compaction method

open access: yesYantu gongcheng xuebao, 2021
In order to determine the construction parameters of the vibrating rod compaction method to treat the collapsible loess foundation, the self-developed vibrating rod compaction method equipment is used to carry out field tests on the collapsible loess ...
ZENG Biao 1, 2, ZHANG Ding-wen 1, 2, LIU Song-yu 1, 2, YANG Yong 3, ZHANG Kun 4, WANG Jia-le 4, DU Guang-yin 1
doaj   +1 more source

Performance of screw piles in thick collapsible loess

open access: yesCase Studies in Construction Materials, 2023
The bearing capacity of the composite foundation would be significantly increased by the squeezing effect of soil displacement screw pile. To investigate the effect of soil displacement screw pile treatment on the large-thickness collapsible loess ...
Xingwei Wang   +6 more
doaj   +1 more source

Application of Nano Materials in Improving Geotechnical Properties of Soils: A Review Study [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2023
Today, with the application of nanomaterials in the various branches of science and engineering fields, some researches assessed how nanoparticles affected the geotechnical characteristics of soil.
Foad Changizi, Abdolhosein Haddad
doaj   +1 more source

Feasibility of using electrokinetics and nanomaterials to stabilize and improve collapsible soils

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Loess as a subcategory of collapsible soils is a well-known aeolian deposit generally characterized as a highly-porous medium with relatively low natural density and water content and a high percentage of fine-grained particles.
Arash Hosseini   +3 more
doaj   +1 more source

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