xuzhou mechanism sand

Breaking mechanism and control technology of sandstone ...

2020-3-1 · The 1602 (3) face of Panyi Coal Mine in Huainan Mining Area is the working face of raised upper limit with minimum waterproof coal pillar of 40 m and the actual minimum waterproof coal pillar of 44.3 m.Shiping | Professor | PhD | China University of …Shiping, Professor | Cited by 537 | of China University of Mining and Technology, Xuzhou | Read 87 publications | Contact Shiping

Study on microstructure mechanism of sandstone based …

Rock contains a large number of micro-pores, which are of different shapes and complex structures. The structure information of sandstones is extracted based on different porosities through X-ray CT (Computer Tomography) scanning, photo processing techniques and complex network method to explore the topological structure of sandstone seepage network ntact Us – IBCC IndustriesIBCC Xuzhou Machinery Fengxian, Xuzhou, Jiangsu. IBCC Industries (India) Pvt Ltd Plot No. B16A and B17| Gallops Industrial Park|Phase 1|National Highway 8A| Village – Rajoda|Taluka – Bavla|Dist.-Ahmedabad|382220|Gujarat,India. Southern India Steelcast Private Limited 378/1 Somanapali Road, Alur Village, Moranapali, Hosur, Tamil Nadu 635109.

Mechanical Behavior and Damage Fracture Mechanism …

2022-1-13 · of borehole size on the triaxial strength and deformation behavior of hollow sand-stone; (3) to explore the influence of high temperature on the triaxial deformation ... and the damage failure mechanism of rocks by AE and X-ray CT observations. ... Xuzhou, Jiangsu, China. Funding Information National Natural Science Foundation of China ...Study on the disaster reduction mechanism of …Study on the disaster reduction mechanism of presplitting blasting and reasonable blasting parameters for shallowly buried ... Xuzhou, China 2School of Mines, State Key Laboratory of Coal Resources & Safe Mining, China ... coal pillars, ground drilling, sand filling the coal room, and controlling the mining height, have been proposed.

J.G. WANG | Professor (Full) | PhD | China University of ...

J.G. WANG, Professor (Full) | Cited by 4,730 | of China University of Mining and Technology, Xuzhou | Read 123 publications | Contact J.G. WANGRetardation and reaction mechanisms of magnesium …Retardation and reaction mechanisms of magnesium phosphate cement mixed with glacial acetic acid Li Jun, abc Ji Yong-sheng, *ac Huang Guodong ac and Jin Cheng ac This study aims to investigate the effect of admixture glacial acetic acid on the setting time, compressive strength, and hydration temperature of magnesium phosphate cement.

Experimental Study of the Water-Sediment Two-Phase …

2021-11-25 · Research Article Experimental Study of the Water-Sediment Two-Phase Seepage Characteristics in Rock Fractures and the Influencing Factors Kui Di,1 Ming Li,1 Xianbiao Mao,1 Zhanqing Chen,1 Lianying Zhang,2 and Yu Han1 1State KeyLaboratory for Geomechanics andDeep UndergroundEngineering, China University of Mining andTechnology, Xuzhou, …Permeability Characteristics of Water-Sand Seepage in ...2021-9-29 · Studies on the seepage characteristics of water-sand cracks are of great significance to reveal the mechanisms of water and sand inrush. Using a self-made water-sand fracture seepage test instrument, a water-sand seepage test was carried out, and the permeability of water and sand in the fracture was determined. The hysteresis characteristics of water-sand …

Permeability of Sand-Based Cemented Backfill under ...

2021-2-20 · Research Article Permeability of Sand-Based Cemented Backfill under Different Stress Conditions: Effects of Confining and Axial Pressures Cunli Zhu,1,2 Jixiong Zhang,1,2 Nan Zhou,1,2 Meng Li,1,2 and Yaben Guo 1,2 1School of Mines, China University of Mining and Technology, Xuzhou, 221116 Jiangsu, China 2State Key Laboratory of Coal Resources and …ModelingandSimulationofDeformationMechanismofSoftRock ...2020-5-25 · Xuzhou 221116, China 2School of Mechanics and Civil Engineering, ... Considering the effect of mine water, a case study on the fracture mechanism and control technology of soft rock roadway was performed in this paper. The results showed that with the increase of moisture content, the uniaxial compressive strength of ... sand pore water. With ...

Breaking mechanism and control technology of sandstone ...

2020-3-1 · The 1602 (3) face of Panyi Coal Mine in Huainan Mining Area is the working face of raised upper limit with minimum waterproof coal pillar of 40 m and the actual minimum waterproof coal pillar of 44.3 m.Measurement and prediction on thermal conductivity of ...2020-4-16 · In this paper, the fused quartz with a purity of 99.9%, manufactured by Xuzhou Xinyi Wanhe Minerals Co., Ltd., China, was chosen as transparent granular particles to mimic natural sand particles 6 ...

Study of inhibition characteristic of sand suspending ...

2009-9-1 · Xuzhou: Journal of China University of Mining and Technology. 2 (2004) 205-208. [5] J.H. Chen, X.X. Zhong and D.M. Wang, Research on the fire preventing technology of sand suspending thickener in Shendong coal area. Safety in Coal Mines. 12 (2005) 22-24. [6] D.M. Wand, Mine Fires. Xuzhou: China University of Mining and Technology Press, 2008. [7]Mechanical Behavior and Damage Fracture Mechanism …2022-1-13 · of borehole size on the triaxial strength and deformation behavior of hollow sand-stone; (3) to explore the influence of high temperature on the triaxial deformation ... and the damage failure mechanism of rocks by AE and X-ray CT observations. ... Xuzhou, Jiangsu, China. Funding Information National Natural Science Foundation of China ...

Effect of Sand Particle Size on Microstructure and ...

Abstract: To identify mechanism of sand particle size effect on the mechanical properties of gypsum cement, 11 grades of sand particles with a size …Effects of impact energy on the wear resistance ... - …2017-11-27 · hardening mechanism of medium manganese austenitic steel Hui CHEN1 ... 1 School of Materials Science and Engineering, China University of Mining & Technology, Xuzhou 221116, China 2 Jiangsu Key Laboratory of Large Engineering Equipment Detection and Control, Xuzhou ... abrasion material was quartz sand between 8 and 12 mesh and a flux of 50 kg ...

Breaking mechanism and control technology of sandstone ...

2020-3-1 · The 1602 (3) face of Panyi Coal Mine in Huainan Mining Area is the working face of raised upper limit with minimum waterproof coal pillar of 40 m and the actual minimum waterproof coal pillar of 44.3 m.Particle Breakage Effect on Compression Behavior of ...The morphologies of sands were obtained using X-ray microcomputed tomography. Sand assemblies were generated in terms of the statistical distribution of sphericity from real sands. The results of single-particle compression tests showed that particle shape significantly affects crushing strength.

The phytotoxicity mechanism of florpyrauxifen-benzyl to ...

2021-11-1 · The mechanism of florpyrauxifen-benzyl against E. crus-galli was further investigated by measuring the activities of SOD, POD and , and MDA content. As shown in Fig. 3 A, MDA content in treated E. crus-galli continuously increased with time, and the higher MDA content was observed at 48 h and 72 h.Liquefaction - an overview | ScienceDirect TopicsIn The Fukushima and Tohoku Disaster, 2018. Abstract. Liquefaction is a phenomenon that turns solid ground into a liquid-like state. This chapter explains the mechanism of liquefaction and conditions that cause it. Liquefaction can cause underground pipes due to buoyant forces to come to the surface (lifeline damage) and heavy structures to sink into the soil.

Materials | Free Full-Text | Effect of Sand Particle Size ...

2020-2-7 · To identify mechanism of sand particle size effect on the mechanical properties of gypsum cement, 11 grades of sand particles with a size of 0.1–3 mm were used to produce 99 specimens for uniaxial compression and permeability coefficient testing. Based on this, the distribution characteristics of internal stress and horizontal displacement are discussed using …An experimental investigation on the speed of sand flow ...2017-3-3 · The sand used in these experiments is natural river sand sampled from Xuzhou in Jiangsu Province, China. The majority of the grains of sand are sub-angular in shape. The sand was washed and then ...

Modeling and Simulation of Deformation Mechanism of …

The existence of coal mine water has an important influence on the instability of soft rock roadway in mining engineering. Considering the effect of mine water, a case study on the fracture mechanism and control technology of soft rock roadway was performed in this paper. The results showed that with the increase of moisture content, the uniaxial compressive strength of …Liquefaction - an overview | ScienceDirect TopicsIn The Fukushima and Tohoku Disaster, 2018. Abstract. Liquefaction is a phenomenon that turns solid ground into a liquid-like state. This chapter explains the mechanism of liquefaction and conditions that cause it. Liquefaction can cause underground pipes due to buoyant forces to come to the surface (lifeline damage) and heavy structures to sink into the soil.

Materials | Free Full-Text | Effect of Sand Particle Size ...

2020-2-7 · To identify mechanism of sand particle size effect on the mechanical properties of gypsum cement, 11 grades of sand particles with a size of 0.1–3 mm were used to produce 99 specimens for uniaxial compression and permeability coefficient testing. Based on this, the distribution characteristics of internal stress and horizontal displacement are discussed using …Applied Sciences | Free Full-Text | Mechanism of Overlying ...2021-2-17 · There is a layer of the unconsolidated confined aquifer (UCA) made of non-cemented sand and grit on the bed of Quaternary thick topsoil in many coal mines in east and north China. Existing on the bedrock of coal measures, it poses a serious threat to coal mine safety. Worse, it caused many supports crushing and water inrush disasters (SCWIDs) and resulted in …

Measurement and prediction on thermal conductivity of ...

2020-4-16 · In this paper, the fused quartz with a purity of 99.9%, manufactured by Xuzhou Xinyi Wanhe Minerals Co., Ltd., China, was chosen as transparent granular particles to mimic natural sand particles 6 ...About Xuzhou Rosarieo International Co., Ltd, Company ...3.3 Million Square Feet Of Warehouse and Factory. Since 1984 our production and warehouse center operates on an area of 3,000,000 square feet. The plant focuses on the production of high-quality glass bottles in Food & Beverage, Home & Hospitality Beauty & …

Original Research Investigating Water Permeation …

Xuzhou, Jiangsu 221116, China ... We found that sand and soil behave differently when water permeates through the soil-rock mixture. Furthermore, selected results on water permeation were compared with the relevant studies, ... further understanding on the mechanical mechanism of water permeation through the soil-rock mixture used in ...Failure mechanism of the large‐section roadway under …Failure mechanism of the large-section roadway under mined ... Mining and Technology, Xuzhou, China 2College of Civil Engineering and Architecture, Dalian University, Liaoning, ... 6 medium sand 4.3 7 3-5# Coal seam 17.5 8 Coarse sand 3.0 9 medium sand 5.0 10 fi nesandsto 11.2

Experimental Study on Temperature Field Evolution ...

2022-1-20 · Mechanism of Artificially Frozen Gravel Formation under ... Xuzhou 221116, China 5Jinan Design Institute, China Railway Engineering Consulting Group Co. Ltd., ... sand and medium-coarse sand formations, which represent a relatively uniform formation. Research studies on …Failure mechanism of the large‐section roadway under …Failure mechanism of the large-section roadway under mined ... Mining and Technology, Xuzhou, China 2College of Civil Engineering and Architecture, Dalian University, Liaoning, ... 6 medium sand 4.3 7 3-5# Coal seam 17.5 8 Coarse sand 3.0 9 medium sand 5.0 10 fi nesandsto 11.2

Permeability of Sand-Based Cemented Backfill under ...

2021-2-20 · Research Article Permeability of Sand-Based Cemented Backfill under Different Stress Conditions: Effects of Confining and Axial Pressures Cunli Zhu,1,2 Jixiong Zhang,1,2 Nan Zhou,1,2 Meng Li,1,2 and Yaben Guo 1,2 1School of Mines, China University of Mining and Technology, Xuzhou, 221116 Jiangsu, China 2State Key Laboratory of Coal Resources and …The control of the formation of karst collapse through the ...2017-11-18 · Xuzhou urban region has been seriously threatened by the geological hazards, such as karst collapse. Several collapses that had widely occurred were distributed in the ancient Yellow River Fault zone. Obviously, they were zonal and being controlled by the river fault zone. The karst was developing well in the fault zone and it connected the Cambrian and the …

Settlement mechanism and improvement of thick silty …

2021-11-22 · Xuzhou Changzhou Nanjing Shanghai Mount Putuo Jiangxi Anhui Fujian Jinhua Figure 1. Location of Hangzhou Bay region 2 Geotechnical Research Settlement mechanism and improvement of thick silty sand layer overlying mud foundation Li, Cheng, Fan, Qian and ChenMaterials | Free Full-Text | Effect of Sand Particle Size ...2020-2-7 · To identify mechanism of sand particle size effect on the mechanical properties of gypsum cement, 11 grades of sand particles with a size of 0.1–3 mm were used to produce 99 specimens for uniaxial compression and permeability coefficient testing. Based on this, the distribution characteristics of internal stress and horizontal displacement are discussed using …

Experimental Study on Temperature Field Evolution ...

2022-1-20 · Mechanism of Artificially Frozen Gravel Formation under ... Xuzhou 221116, China 5Jinan Design Institute, China Railway Engineering Consulting Group Co. Ltd., ... sand and medium-coarse sand formations, which represent a relatively uniform formation. Research studies on …Original Research Investigating Water Permeation …Xuzhou, Jiangsu 221116, China ... We found that sand and soil behave differently when water permeates through the soil-rock mixture. Furthermore, selected results on water permeation were compared with the relevant studies, ... further understanding on the mechanical mechanism of water permeation through the soil-rock mixture used in ...

Breaking mechanism and control technology of sandstone ...

2020-3-1 · The 1602 (3) face of Panyi Coal Mine in Huainan Mining Area is the working face of raised upper limit with minimum waterproof coal pillar of 40 m and the actual minimum waterproof coal pillar of 44.3 m.Study on microstructure mechanism of sandstone based …Study on microstructure mechanism of sandstone based on complex network theory. Abstract. Rock contains a large number of micro-pores, which are of different shapes and complex structures. The structure information of sandstones is extracted based on different porosities through X-ray CT (Computer Tomography) scanning, photo processing ...

Study on the disaster reduction mechanism of …

Study on the disaster reduction mechanism of presplitting blasting and reasonable blasting parameters for shallowly buried ... Xuzhou, China 2School of Mines, State Key Laboratory of Coal Resources & Safe Mining, China ... coal pillars, ground drilling, sand filling the coal room, and controlling the mining height, have been proposed.ModelingandSimulationofDeformationMechanismofSoftRock ...2020-5-25 · Xuzhou 221116, China 2School of Mechanics and Civil Engineering, ... Considering the effect of mine water, a case study on the fracture mechanism and control technology of soft rock roadway was performed in this paper. The results showed that with the increase of moisture content, the uniaxial compressive strength of ... sand pore water. With ...

Materials | Free Full-Text | Effect of Sand Particle Size ...

2020-2-7 · To identify mechanism of sand particle size effect on the mechanical properties of gypsum cement, 11 grades of sand particles with a size of 0.1–3 mm were used to produce 99 specimens for uniaxial compression and permeability coefficient testing. Based on this, the distribution characteristics of internal stress and horizontal displacement are discussed using …Failure mechanism of the large‐section roadway under …Failure mechanism of the large-section roadway under mined ... Mining and Technology, Xuzhou, China 2College of Civil Engineering and Architecture, Dalian University, Liaoning, ... 6 medium sand 4.3 7 3-5# Coal seam 17.5 8 Coarse sand 3.0 9 medium sand 5.0 10 fi nesandsto 11.2

Effect of Sand Particle Size on Microstructure and ...

The results obtained show that the sand particle size effect on the uniaxial compressive strength of similar materials is negatively correlated within the range from -16.51% to 49.79%. SEM observations imply that, in the case of small particle sizes, gypsum crystals develop into denser needle-like structures, while for larger particle sizes ...Research on Fatigue Performance of PVA-ECC under ...Test raw materials and the mixture ratio. P.O 42.5 cement, fly ash level produced in Xuzhou 1 power plant, local river sand whose silt content was less than 1% and fineness modulus was 2.18, domestic fiber PVA with each length of 6 mm, Polycarboxylate super plasticizer whose water reducing rate was 30%, running water.