Results 31 to 40 of about 358,455 (171)

Experimental study on discharge capacity of prefabricated vertical drain considering interaction of PVD and soil

open access: yesYantu gongcheng xuebao, 2017
In order to study the practical discharge capacity of prefabricated vertical drain (PVD), a new apparatus is developed. The laboratory vacuum preloading model tests, surcharge preloading model tests and direct filling tests are used to produce the PVD ...
ZHU Qun-feng 1,2, GAO Chang-sheng 1,2, ZHAN Xin-jie 1,2, ZHANG Ling 1,2, YANG Shou-hua 1,2, MING Jing-ping 1,2
doaj   +1 more source

Engineering case analysis of vacuum preloading and electroosmosis applied alternately design method

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2022
Vacuum flow and electroosmosis flow near the anodes interfere with each other when vacuum preloading combined with electroosmosis using electric vertical drains(EVD) as electrodes, which affect the reinforcement effect.This study proposed a design method
SUN Zhaohua; WU Tianyue; Cauderty Munashe Kasu
doaj   +1 more source

Consolidation mechanism of vacuum preloading for dredged slurry and anti-clogging method for drains

open access: yesYantu gongcheng xuebao, 2021
Considering the key problem that the vacuum preloading method cannot efficiently improve dredged slurry, the research findings over the years obtained by the author’s research team are comprehensively summarized, including the following four aspects: (1)
CAI Yuan-qiang
doaj   +1 more source

Temperature effects on dredged slurry performance under vacuum preloading [PDF]

open access: yes, 2020
Under appropriate temperature conditions, vacuum preloading can effectively accelerate the rate of soil consolidation. If the temperature is low (30 °C), vacuum preloading is less effective at consolidating the soil.
Cai, Yuanqiang   +7 more
core   +1 more source

A Hansbo's consolidation solution of sand-drained ground with impeded boundaries under vacuum and surcharge preloading

open access: yes工程科学学报, 2018
The top and bottom boundaries of sand-drained ground were visualized as impeded boundaries to investigate the effects of the pervious behaviors of the cushion above the top and the substratum below the bottom during the consolidation process of sand ...
HU Ya-yuan
doaj   +1 more source

Discussion on characteristics of pore pressure in hydraulic reclamation silt foundation under vacuum preloading

open access: yesShuili Shuiyun Gongcheng Xuebao, 2017
The pore water pressure monitoring is one of the important contents of the monitoring hydraulic reclamation silt foundation under the vacuum preloading, and the variation of the pore water pressure can reflect the development of effective stress in the ...
XU Binhua   +4 more
doaj   +1 more source

Measures to decrease the environmental influence of vacuum preloading dredging project [PDF]

open access: yes, 2011
Vacuum preloading is one of the effective technologies for consolidating soft foundation. The definition of vacuum preloading is presented and the consolidation mechanism of vacuum preloading is explained either.
Xianbo Yang   +7 more
core   +1 more source

Reverse vacuum preloading method for overlying backfill soil of blown silt foundation

open access: yesYantu gongcheng xuebao
A reverse vacuum preloading method is proposed to address the problems of poor reinforcement effects of deep soil and vacuum loss when the traditional vacuum preloading is used to treat silt foundation.
GAO Ziyang 1, 2, 3, 4 , WANG Jun 1, 2, 3, 4, GAO Mingwei 1, ZHU Xiaoxiao 1, 2, 3, 4, FU Hongtao 1, 2, 4, XU Zhao 5, LÜ Youchang 5
doaj   +1 more source

Model tests and numerical simulations of newly sheet-free vacuum preloading method for ultra-soft dredger fills

open access: yesYantu gongcheng xuebao, 2017
There are problems when dealing with the dredger fills using the traditional vacuum preloading method, for example, the treated area can not be too large and the plastic-sheet maybe leaks.
LEI Hua-yang 1, 2, LIU Ying-nan 2, FENG Shuang-xi2, LIU Jing-jin 1, 2
doaj   +1 more source

Finite Element Analysis of Vertical and Horizontal Drainage Structures under Vacuum Combined Surcharge Preloading

open access: yesAdvances in Civil Engineering, 2021
Combined vacuum and surcharge preloading has gradually been widely used because of its advantages of low cost, green environmental protection, and good treatment effect.
Daqing Wang   +6 more
doaj   +1 more source

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