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Microseismic monitoring of Well J-253 in complicated construction

Zhao Xinhong,Che Hang,Luo Jiong

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 12-15

Abstract: The direction and geometry size of hydraulic fracture are affected by the stress, geological structureand faults, as well as hydraulic sand blasting.

Keywords： microseismic monitoring     hydraulic sand blasting     fault    

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Precision Blasting Excavation of Underground Workshop Crane Beam of Rock Wall in Complicated Geology

Li Changneng,Xu Chengguang

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 42-47

Abstract:

The geology condition of Xiang jiaba hydraulic power station undergroundAccording to inherent conception of “precision blasting”, technological measures of optimizedexcavation sequence, steel tube frame for drilling, double smooth blasting, equal and minim explosivewhich, precision control of explosive energy release and rock fragmentation were achieved, insured the blastingaverage over break value was only 2.9cm, the non-smoothness is 0~4cm, the influence depth because of blasting

Keywords： Xiang jiaba hydraulic power station     underground workshop     crane beam of rock wall     precision blasting    

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Numerical simulation of compaction parameters for sand-filled embankment using large thickness sand filling

Wentao WANG, Chongzhi TU, Rong LUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 568-576 doi: 10.1007/s11709-017-0444-4

Abstract: The study uses the finite element method to simulate a new technique of highway sand embankment fillingin Jianghan Plain district, which can raise the thickness of sand-filled layer from 30 cm to 70 cm andcan significantly shorten the construction period based on the guarantee of sand embankment constructionThe simulation results indicate that the sand-filled layer thickness of 70 cm is suitable for the newsand filling technique, and the sand-filled embankment project with tight construction period is suggested

Keywords： sand embankment     compaction in large thickness     numerical simulation     small size vibratory roller     steady    

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Unified description of sand behavior

Feng ZHANG, Bin YE, Guanlin YE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 121-150 doi: 10.1007/s11709-011-0104-z

Abstract: In this paper, the mechanical behavior of sand, was systematically described and modeled with a elastoplasticWithout losing the generality of the sand, a specific sand called as Toyoura sand, a typical clean sandIn the model, the results of conventional triaxial tests of the sand under different loading and drainageloading tests, then they are fixed to uniquely describe the overall mechanical behaviors of the Toyoura sand

Keywords： constitutive model     sand     stress-induced anisotropy     density     structure    

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Research review of the cement sand and gravel (CSG) dam

Xin CAI, Yingli WU, Xingwen GUO, Yu MING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 19-24 doi: 10.1007/s11709-012-0145-y

Abstract: The cement sand and gravel (CSG) dam is a new style of dam that owes the advantages both of the concrete

Keywords： cement sand and gravel (CSG) dam     cement sand and gravel (CSG) material     research review    

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Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 191-204 doi: 10.1007/s11709-022-0906-1

Abstract: Blasting engineering in complex urban environments is considered to influence the safety and stabilityTherefore, field blasting and vibration tests were performed on the blasting engineering of the Wuhanused to analyze the dynamic response characteristics of an underground drainage box culvert during the blastingThe vibration response evolution law of the buried drainage box culvert under blasting vibration was

Keywords： drainage box culvert     underpass blasting     dynamic response     numerical simulation     safety assessment    

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Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete

Branavan ARULMOLY; Chaminda KONTHESINGHA; Anura NANAYAKKARA

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1453-1473 doi: 10.1007/s11709-022-0877-2

Abstract: Construction industries have started to utilize manufactured sand (MS) as an effective alternative forriver sand in concrete.

Keywords： manufactured sand     fresh concrete     microfines     admixtures     shrinkage     cracking    

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Progresses in Explosive Materials and Engineering Blasting

Wang Xuguang

Strategic Study of CAE 2002, Volume 4, Issue 4,   Pages 36-40

Abstract:

The progresses in explosive materials and engineering blasting in the recent five years at home and

Keywords： explosive     blasting accessories     blasting    

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Impacts of backwashing on micropollutant removal and associated microbial assembly processes in sand

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1634-z

Abstract:

● Backwashing in sand filters with 2-h and 4-h EBCTs was simulated

Keywords： Sand filter     Backwashing     Recovery     Micropollutants     Community composition    

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Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1400-1414 doi: 10.1007/s11709-021-0779-8

Abstract: As such, a detailed experimental investigation was carried out to evaluate the effect of sand-to-aggregate

Keywords： aggregates     non-destructive testing     sand-to-aggregate volume ratio (s/a)     maximum aggregate    

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Study on Blasting Fragmentation Control for Moderate Deep Hole in Underground Mine

Zhao Yanwei,He Dongmei,Li Xianglong,Liu Junxuan

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 48-52

Abstract:

The scallop moderate longhole blasting mining method in Da Hong-shanIn order to realize the mine production efficient development, the circular moderate longhole blastingThe test results show that circular hole blasting can reduce the block rate is reduced to 10.3%, andthe traditional scallop moderate longhole blasting mining compared with the average lump ore decreasedof detonators, the efficiency of drawing and at the same time, reduce the mining cost ,achieved good blasting

Keywords： The scallop moderate longhole blasting     the circular moderate longhole blasting     lump ore     blasting effect    

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Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregate

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 754-772 doi: 10.1007/s11709-021-0711-2

Abstract: Typical effects of coarse and fine aggregates on the long-term properties of sea sand recycled aggregateTwo different types of fine (coarse) aggregates are considered: sea sand and river sand (natural andSSRAC increase with decreasing recycled coarse aggregate replacement percentage and increasing sea sandhowever, the deformation differences between coarse aggregate and cement mortar reduce by adopting sea sand

Keywords： sea sand recycled aggregate concrete     recycled coarse aggregate replacement percentage     sea sand chloride    

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Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 2,   Pages 147-152 doi: 10.1007/s11709-012-0158-6

Abstract: This study focuses on effect of fiber inclusion on the strength and other parameters of clayey sand compositeFirst part of this study is related to effective parameters on strength of the clayey sand composite

Keywords： triaxial     consolidated undrained (CU)     fiber     strength    

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The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1273-6

Abstract: . • Sand doping facilitated proportional As trapping along the ZVI/oxidants column. • ZVI/sand/oxidantsare highly efficient for arsenic removal. • ZVI/sand/oxidants reduced significantly the Fe2+ leachingand effluent turbidity. • More than 54% of arsenic was reduced to As(III) in ZVI/sand/oxidants systemIn a packed column with a 1:20 mixture of ZVI and sand, the average As removal efficiency was 36 (1stMoreover, the leaching of Fe was significantly reduced with an increased sand ratio, resulting in clearer

Keywords： Arsenic     ZVI     Sand     Oxidants     Fixed-bed Column     Removal    

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Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral

Fulin Qu, Wengui Li, Xiaohui Zeng, Zhiyu Luo, Kejin Wang, Daichao Sheng

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1545-1560 doi: 10.1007/s11709-020-0678-4

Abstract: Self-consolidating concrete (SCC) with manufactured sand (MSCC) is crucial to guarantee the quality ofproperties of MSCC with different microlimestone powder (MLS) replacements of retreated manufactured sandhas the highest strength in the late age, which is even better than that of SCC made with the river sandThe obtained results can be used to promote the application of SCC made with manufactured sand and mineral

Keywords： microlimestone powder     manufactured sand     retreated manufactured sand     self-consolidating concrete     mineral    

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Title Author Date Type Operation

Microseismic monitoring of Well J-253 in complicated construction

Zhao Xinhong,Che Hang,Luo Jiong

Journal Article

Precision Blasting Excavation of Underground Workshop Crane Beam of Rock Wall in Complicated Geology

Li Changneng,Xu Chengguang

Journal Article

Numerical simulation of compaction parameters for sand-filled embankment using large thickness sand filling

Wentao WANG, Chongzhi TU, Rong LUO

Journal Article

Unified description of sand behavior

Feng ZHANG, Bin YE, Guanlin YE

Journal Article

Research review of the cement sand and gravel (CSG) dam

Xin CAI, Yingli WU, Xingwen GUO, Yu MING

Journal Article

Safety assessment for buried drainage box culvert under influence of underground connected aisle blasting

Journal Article

Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete

Branavan ARULMOLY; Chaminda KONTHESINGHA; Anura NANAYAKKARA

Journal Article

Progresses in Explosive Materials and Engineering Blasting

Wang Xuguang

Journal Article

Impacts of backwashing on micropollutant removal and associated microbial assembly processes in sand

Journal Article

Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio

Journal Article

Study on Blasting Fragmentation Control for Moderate Deep Hole in Underground Mine

Zhao Yanwei,He Dongmei,Li Xianglong,Liu Junxuan

Journal Article

Effects of coarse and fine aggregates on long-term mechanical properties of sea sand recycled aggregate

Journal Article

Performance of fiber reinforced clayey sand composite

Amin CHEGENIZADEH, Hamid NIKRAZ

Journal Article

The coupling of sand with ZVI/oxidants achieved proportional and highly efficient removal of arsenic

Sana Ullah, Xuejun Guo, Xiaoyan Luo, Xiangyuan Zhang, Yameng Li, Ziyu Liang

Journal Article

Effect of microlimestone on properties of self-consolidating concrete with manufactured sand and mineral

Fulin Qu, Wengui Li, Xiaohui Zeng, Zhiyu Luo, Kejin Wang, Daichao Sheng

Journal Article