Introduction: Overview of concepts, definitions, and principles of soil mound studies

2012 ◽  
Author(s):  
Donald L. Johnson ◽  
Jennifer L. Horwath Burnham
Keyword(s):  
Soil Mound

Dynamic Consolidation Test Study on Silt and Silt Soil

2011 ◽  
Vol 90-93 ◽  
pp. 537-541
Author(s):  
Yao Xu ◽  
Shu Cai Li ◽  
Xiao Zhang ◽  
Bin Yan ◽  
Chun Mei Zhu
Keyword(s):  
New Technology ◽  
Silty Clay ◽  
Cone Penetration ◽  
Test Study ◽  
Settlement Plate ◽  
Dynamic Consolidation ◽  
Consolidation Model ◽  
Soil Mound ◽  
Water Pore Pressure ◽  
Static Cone Penetration Test

A dynamic consolidation model of double layered foundation of saturated soil and unsaturated soil is proposed. Mechanism of dynamic compaction treating on double layered foundation is studied by the model. On the base of the mechanism a new technology called soil-mound dynamic consolidation can be applied to treat the ground of saturated silt and silty clay with high groundwater level. The water-pore pressure test, static cone penetration test, settlement plate test are applied to evaluate that of the new technology with different construction parameters. The treatment effect is more remarkable than that of plastic drain-dynamic consolidation.

Crig-a-mennis: a Bronze Age Barrow at Liskey, Perranzabuloe, Cornwall

1960 ◽  
Vol 26 ◽  
pp. 76-97 ◽  
Author(s):  
Patricia M. Christie
Keyword(s):  
Bronze Age ◽  
Iron Age ◽  
Central Area ◽  
Kind Permission ◽  
Mine Dumps ◽  
The North ◽  
Natural Rock ◽  
Royal Institution ◽  
Soil Mound ◽  
Subsequent Activity

The mound traditionally known as ‘Crig-a-mennis’ was excavated in September and October, 1957 on behalf of the Ministry of Works. Although a scheduled site, it was threatened with destruction owing to the clearing of mine dumps from the field where it was situated.The site lies just off the main Perranporth-Truro road (fig. 1, map 3) on the south-east slope of Liskey Hill, about one mile south-east of the modern resort of Perranporth in the parish of Perranzabuloe (O.S. National Grid: 757528) and was originally one of a group of barrows in the area, few traces of which now remain.In the course of four weeks of excavation the mound was stripped and nothing of it now remains. The finds were placed, after restoration by the writer, in the Museum of the Royal Institution of Cornwall in Truro by kind permission of Lord Vyvyan on whose land the barrow stood.The site revealed a composite bell-barrow surrounded by an irregular causewayed ditch. A central stone-heap covering a fire and an oval pit was overlain by a turf and soil mound, stone reveted on the north and west, with a narrow berm between revetment and ditch. A trench-ramp cut into the natural rock on the east led into the ditch from outside and up towards the central area. Two finely decorated Ribbon-handled Urns were found inverted on the periphery of the turf stack and contemporary with it, one containing charcoal, the other burnt flints, biconical terracotta beads of Wessex type and a small terracotta cone. A miniature cup, five flint flakes and a flint core, and the possible remains of a wooden tool were also found, while a number of pits and charcoal patches suggest an elaborate ritual. Only one main phase of barrow construction was discernible—though this was capable of some sub-division—and the finds date the whole to c. 1400 B.C. or slightly later. Subsequent activity on the site, probably during the Iron Age, is attested by quern fragments, a slate ‘comb’ and an iron object.

Notes on the Adena Aspect

1949 ◽  
Vol 15 (1) ◽  
pp. 61-63
Author(s):  
Robert A. Kercher
Keyword(s):  
Skeletal Remains ◽  
Aluminum Company ◽  
New Material ◽  
Scioto River ◽  
Soil Mound ◽  
House Site ◽  
Extreme State ◽  
Mound Sites

A new material trait of the Adena Aspect has recently been discovered in two mound sites in Ross County, Ohio, viz., tubular pottery pipes with a constricted mouthpiece. Similar specimens in stone are diagnostic of the aspect but pipes made of pottery are unreported in either comprehensive analyses of Adena or the site reports in their bibliographies.The Renick group of mounds are situated 0.4 mile southeast of Chillicothe on the second terrace overlooking the Scioto River, and are on the property of the Aluminum Company of America. Mound I was 9 feet 1 inch high, had a diameter of 74 feet, and contained 32 burials, 2 subfloor tombs, and a house site. The skeletal remains were generally in an extreme state of decay, in some cases being discernible only as a discoloration in the soil. Mound II, 80 feet to the northeast, was 15 inches high and 30 feet in diameter.

Small Scale Model Tests of Ice Gouge in Soft Sandy Silt

2008 ◽  
Author(s):  
Ingar Stava ◽  
Per R. Nystro̸m ◽  
Normann Vikse ◽  
Ove T. Gudmestad ◽  
Pavel Liferov ◽  
...  
Keyword(s):  
Scale Model ◽  
Small Scale ◽  
Test Results ◽  
Sandy Silt ◽  
Master Thesis ◽  
Pipe Segment ◽  
The University ◽  
Soil Mound ◽  
Thesis Work ◽  
Small Scale Model

Small scale gouge tests were designed and executed at the University of Stavanger in Norway as a part of master thesis work. A box (2.5 × 2.5 m) was filled with soft sandy silt and several gouge tests were performed. The subgouge soil deformations, the soil mound dimensions and the ratio between initial and residual gouge depth were measured under varying gouge parameters. Vaneshear and T-bar tests were used to estimate soil properties. A pipe segment was buried under the gouge and strains in the pipe were monitored in some of the tests. Test results are presented in this paper, including FE simulations of some of the performed experiments.

QUALITY ASSESSMENT OF SOIL RIDGE FORMATION WHEN SOWING TILLED CROPS

2016 ◽  
Vol 11 (2) ◽  
pp. 72-76
Author(s):  
Ерошкин ◽  
Aleksandr Eroshkin ◽  
Шаронов ◽  
Ivan Sharonov ◽  
Зыкин ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Quality Assessment ◽  
Physical And Mechanical Properties ◽  
Operational Parameters ◽  
Flat Disk ◽  
Soil Mound

A hillock drill was desighned, an application of which makes cost-effectively in one pass to perform sowing cultivation, sowing the seeds, form a soil mound above sown seeds, compact the soil mound from three sides and, finally, form a soil ridge of required dimensions and density in it. The article was justified the attack angles of flat disk of the working unit and the spherical roller-discs of roller-ridger of hillock drill. It was revealed, that the process of soil ridges forming of required dimensions and density at seeding tilled-crops are affected by structural and operational parameters of working units with flat discs and the roller-ridges, as well as the physical and mechanical properties of the soil.

scholarly journals Structural Damage of Subway Tunnel Buried Shallowly in Silt Layer under Soil Mound Loading

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Xue-zeng Liu ◽  
Yun-long Sang ◽  
Li-min Xin ◽  
Gang Shi ◽  
Jian-xun Wu
Keyword(s):  
Structural Damage ◽  
Crack Depth ◽  
Ground Surface ◽  
Shield Tunnel ◽  
Burial Depth ◽  
Subway Tunnel ◽  
Cracking Process ◽  
Subway Tunnels ◽  
Soil Mound ◽  
Silt Layer

Based on the structural damage of the shield tunnel caused by a soil mound on the ground surface in a section of subway in Tianjin, China, the deformation and the cracking process of the segment under soil mound loading were simulated. The variations of segment, bolt, and rebar stresses with the height of the mound were analyzed. The results show that, for the stagger-jointed assembled shield tunnel that crosses the marine sedimentary silt with a burial depth of 10 m, as the mound loading increases, the damage is concentrated in the vault and hance. When the mound loading is 16.0 kPa, the segment is damaged; the crack depth and bolt axial force of the vault increase rapidly when the mound loading reaches 38.6 kPa. The analysis results are basically consistent with monitoring data. Based on the above analysis, the control standard of mound loading should be 38.6 kPa. The results of this study can provide data reference for control and structural protection of soil mound loading for similar subway tunnels.

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