Abstract: Biogenic coral-reef limestone is distinct from the traditional geological rock. In this study, Hopkinson pressure bar tests on coral-reef limestone are conducted to investigate the dynamic fracture morphology and dynamic properties of coral-reef limestones of the South China Sea. Research results show that the high-strength and dense
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:Publish Year:2021Metamorphic LimestoneRocks and StonesOur study reveals the differential impacts of vegetation type on soil properties in a degraded limestone mountain ecosystem. The use of native shrubs and grasses can increase soil
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· its dynamic impact-induced fragmentation is of significance. to safe and stable design and construction of island projects. Coral reef limestone, as a special geomaterial, has multi. ple primary
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:Publish Year:2021Peiwen Xiao, Baohua Xiao, Muhammad AdnanSoil Science · This study conducted soil column experiments on two surface soils (H1 and S2) and two subsurface soils (H2 and S2) from two limestone soil profiles in the karst
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china limestone impact crusher. China Minyu Type Hsi Impactor Impact Crusher for Limestone. Impact Crusher,Hydraulic Impact Crusher,Limestone Crusher manufacturer supplier in Chin
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· To gain a better understanding of the biological effect on the water–gas-carbonate interaction, 15 sample plots from five ecotypes (grass land, ecological demonstration, artificial forest, tree-shrub, and forest community) in three experimental sites of SW China due to the absence of time-series succession ecotypes at the same karst
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· Southwest China is distributed with the largest area of limestone and dolomite karst landscapes in the world, and its ecological environment is very fragile; the problem of rock desertification is
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· Soluble rocks (mainly limestone) are widely distributed in China, with a distribution area of up to 3.65 million km 2, accounting for approximately one-third of the country’s land area.In
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· (7) to describe the undamaged deformation of reef limestone, the dynamic deformation test results of a P reef limestone specimen (P-18) under impact load were selected at random. The above constitutive relation is used to fit the undamaged deformation stage ( Fig. 19 ) and the model parameters are λ = 0.003 and n = 2.9.
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· Eliminating the influence of cation exchange, Ordovician limestone, 14 th limestone, and water inrush samples have the same source. Ordovician limestone water inrush mode of North China Coalfield: “progressive supply-crack propagation-permeability increase-channel formation.”
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· Site Ordovician limestone karst water plays a key role in the release of heavy metals from abandoned coal gangue or filled-in goafs in closed coal mines. In this study, a series of immersion experiments was performed to evaluate the leaching behavior of heavy metals in coal gangue from the Baizhuang coal mine in Shandong Province.
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Principal component analysis (PCA) was used to transform the original soil physiochemical properties that may affect K factor, including the percent of sand, silt and clay, soil pH, SOC and SON
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· The pixel-based trend analysis indicated that the CSF of limestone weathering in China was slightly increasing in the period 2000–2014 Jin J X, Tong C F, Zhang H L, Qu Z Y. 2017. Spatiotemporal variation of evapotranspiration of referred crops and the –1034
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· The whole coal mine is surrounded by large faults and can be divided into several hydrogeological sub-blocks from the spatiotemporal effects of geological structures and secondary large faults. The large faults, such as F yuan, F 23, F 531, F 2, F 17, F 11, F 18, F 14, and F 12 in Fig. 2, constitute the boundaries of sub-blocks, cut down the
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· To weaken the boundary effect, this study performed simulations using large tight sandstone outcrops (500 × 500 × 500 mm and 500 × 500 × 800 mm) in the Shahezi Formation (Fm.), Jilin Province
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· In this study, a post-mine limestone quarry located in the town of Fengshan, Guangxi Province, southwestern China. The quarry is 134 m high and has an open-pit area of 10,340 m 2.It dips at 75 –80 in the direction 275 –295 . On 23 November 2008, a 2.1 × 10 4 m 3 rock avalanche occurred in the quarry, killing six people, injuring
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· Article 23 February 2023. Introduction. Soluble rocks (mainly limestone) are widely distributed in China, with a distribution area of up to 3.65 million km 2, accounting for approximately
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:Publish Year:2021Peiwen Xiao, Baohua Xiao, Muhammad Adnan · Hydrogeochemical evolution of Taiyuan Formation limestone water under the disturbance of water inrush from karst collapse column in Taoyuan Coal Mine,
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· Stone Forest, China. Modified date: 03/06/2023. The Stone Forest, also known as Shilin in Chinese, is a remarkable natural wonder located in the Yunnan Province of southwestern China. Renowned for its unique limestone formations, the Stone Forest is an expansive area filled with towering rock pillars, stone peaks, and intricate stone
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· Triaxial compression tests are conducted for the micritized framework reef limestone, which is sampled from a reef island in the South China Sea. The lateral strain response method (LSR) is applied to figure out the crack initiation stress of the reef limestone sample under different confining pressures. With a low porosity and a high dry
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