FARMSTEADS OF THE SALTIV CULTURAL HISTORICAL COMMUNITY ON MOKHNACH П SETTLEMENT: SELECTION CRITERIA AND HOUSEHOLD STRUCTURE

Farmstead planning of Mokhnach П settlement during the time of existence of the Saltiv cultural historical community within the second half of the 8th — mid-9th centuries is analyzed in the paper. The settlement was included into the residential agglomeration (microregion) with the center in Mokhnach hillfort. Some categories of household living buildings and ways of their location in relation to this or other dwelling are distinguished within the bounds of the largest excavation site 1. Generally, 36 Saltiv sites were identified on the mentioned area; among them there are 4 dwellings, 4 slightly deepened household buildings, 3 summer kitchens, 4 constructions for harvest storage (1 vault, 2 cellars and 1 box room) and 21 household pits (two of them were used to prepare clay for ceramics production). The planography analysis of the present complexes of the excavation site 1 allows to admit that in the south eastern part of the settlement there were 4 farmsteads that belonged to separate families which did their own housekeeping. The usable area was not large (12—18 m2). It points to the fact that a so-called «small family» consisting of 4—6 persons owned a certain household. Borderlines of these farmsteads do not overlap one another — it shows that they coexisted together at the same time. There is enough space for passage of people or transport vehicles between the farmsteads. Structure of household buildings is generally similar. The dwelling was accompanied by a slightly deepened household building, a summer kitchen, a construction for harvest storage, and a certain amount of household pits. At the same time, some differences are also can be observed. In two cases (farmstead 2, 4), a small household pit located very close to a household building has been discovered. In the farmsted 3 no summer kitchen was identified, and in the farmstead 1 no construction for harvest storage was found as well. In three other cases (farmsteads 2—4), buildings for harvest storage differed between one another by a form, construction and storage capacity. In the each farmstead the amount of household pits that could coexist at the same time did not exceed 5 units. Thus, it can be noticed that the square of the identified farmsteads, the characteristics of the household buildings, amount of supportive household pits and their location point to the quite convenient organization of the living space and the opportunity to do housekeeping successfully.

Coins from the “Orient” Excavation Site of the Olbian Necropolis

Research on the “Orient” excavation site of the Olbian necropolis has been conducting for eleven years. During this time, 100 coins were found here in 47 different contexts, and 97 of them were clearly identified. The relatively small number of numismatic finds and archaeological contexts allowed a detailed analysis of the relationship between them. The following conclusions were obtained. On this territory, coins were used in funeral and memorial rites throughout the entire existence of the necropolis here (the middle of the 6th century BC — the end of the 2nd century AD). The composition of the coins by the dates of issue basically corresponds to the main stages of the Olbian coinage. An earlier type of coin (casted dolphin-shaped) and a later type (round minted) are fixated in approximately the same number in different layers of the excavation. The main layers of the excavation were formed mainly in a natural way. This situation makes it possible to assume a fairly active usage of the coin precisely in memorial rites. Coins in situ have been found in only four types of burial structures. The time of construction of the burial objects in which the coins were found in situ is clearly divided into two periods: the middle of the 5th — beginning of the 3rd centuries BC and the second half of the 1st—2nd centuries AD. In each period, coins were placed in the grave regardless of the date of burial, the type of burial structure, age and gender of the deceased. 4. The location of the coins within the boundaries of the burial object is not unified. Often found, but not predominantly, their position in the hand (it does not matter, right or left). All other cases are individual. In funeral and memorial rites, it was allowed using a coin that was no longer in active circulation. Some coins, close in date of issue to the date of burial, even during the life of the deceased served him as «amulets».

Monitoring Study on Dust Dispersion Properties during Earthwork Construction

Dust generated in earthwork construction activities can seriously affect the air quality at a construction site and have adverse effects on the health of construction workers. To accurately and quantitively analyze the distribution characteristics of construction dust and the effect of dust prevention measures during earthwork construction under normal construction and construction with dust control measures, multiple collection points and one meteorological parameter collection point were placed at the construction site. From half an hour before the construction to half an hour after the construction, the particle concentration was recorded once every minute. The monitoring results indicated that there was a significant positive correlation between dust concentration during earthwork construction and the number of soil shipments. The dust concentration was highest at the earth excavation site, followed by the area of the waste truck’s transportation path. Earth excavation primarily resulted in the generation of many coarse particles, the concentration of which was the highest near the excavation site. The average concentration increments of and TSP (total suspended particulate) caused by earthwork construction were 55.06 and 375.17 at the construction site, respectively. The concentration increment of and TSP decreased by 72.01% and 40.16%, respectively, when a spray system and artificial sprinkling were adopted. Through the methodology and results of this study, construction companies can systemically plan their construction work by considering the key equipment to be used and can effectively manage the pollutants found within construction sites.

Geochemical analysis of colonoware and brick artifacts from Brook Green Plantation using portable X-ray fluorescence spectrometry

This study used data collected using a portable X-ray fluorescence spectrometer to examine ceramic artifacts found during the excavation of historic Brook Green Plantation, in Georgetown County, South Carolina. Excavations at this site yielded culturally significant artifacts associated with African and African American people held in bondage during the 19th century. The geochemical composition of Colonoware and brick artifacts was compared to clay samples that were taken from six locations on the grounds of Brookgreen Gardens. Some Colonoware sherds were found to be consistent with a clay source close to the excavation site. This research is part of a larger goal to demonstrate the applicability of portable X-ray fluorescence spectrometry in the analysis and interpretation of archaeological ceramics.

INVESTIGATION OF THE MANIFESTATIONS OF ROCK PRESSURE IN A DEEP MINE WITH A STEEP OCCURRENCE OF COAL SEAMS

The purpose of the work. Investigation of the manifestations of rock pressure in the retractable road of a steep coal seam to ensure the operational state of production and increase the safety of work at the excavation site of a deep coal mine. The research used a comprehensive approach, including analysis and generalization of theoretical and experimental research on this problem, field experiment to study the stability of retractable drifts and processing of experimental data. To assess the stability of the preparatory workings, mine studies were performed to study the manifestations of rock pressure in the retractable drift under different methods of protection, when the magnitude of the displacement of lateral rocks on the contour and change the cross-sectional area of the drift along the excavation section. As a result of the performed researches the conditions of stability of retractable drifts of steep coal seams at protection by fires from wooden sleepers and bushes from risers are substantiated. It is recorded that in the zone of influence of mining works, the fastening in the retractable road is deformed and has characteristic curves from the roof. At a distance of l > 80 m behind the clearing face, the loss of the cross-sectional area of the excavation was about 50 % with the method of protection by bushes from the risers and 30 % with the use of wooden fires. It is experimentally proved that with the method of protection of precinct preparatory workings by rigid wooden structures in the form of bushes from risers, the change of cross-sectional area of the retractable lane behind the treatment face in the area of impact of treatment works occurs linearly with increasing length of the excavation site. To ensure the stability of retractable drifts in a deep coal mine with a steep occurrence of coal seams, it is advisable to use aimless methods of protection, when to support the side rocks are used pliable structures in the form of fires made of wooden sleepers. The use of this method of protection of the preparatory workings can reduce the likelihood of landslides and increase the safety of mining operations.

WORKER SAFETY DURING EXCAVATION AND TRENCHING CONSTRUCTION WORK

Earthworks are the integral part of any construction work in civil engineering and building construction. The construction activities performed during earthworks include the following: excavation, earthmoving, earth transport, and earth compaction. During earthworks, the excavation site is subject to harmful, flammable, or hazardous materials, damage to underground installations, the collapse of the earth, and many more risks. Therefore, construction work for trenching and excavation requires the implementation of adequate safety measures. This paper discusses the safety measures for workers during earthworks that involve excavations up to and exceeding one meter in depth.

Stability study of open mine slopes at pit 22 GN PT Kitadin Site Embalut, Kutai Kartanegara Regency, East Kalimantan Province

The stability of slope, both on the slope of work and the final slope, is a very important aspect of slope stability, both on the slope of work and the final slope in open pit mining activities. The inconsistency of the slopes will result in the collapse of rocks around the excavation site. This happens because the condition of the rock when it has not been excavated is generally balanced. However, due to the discontinuous patterns that occur other than naturally and also due to the mining activities such as excavation, blasting and others, cause a reduction in the retaining force of the rock on the slope results in the equilibrium of the force tends to shift and is not balanced. Study of the stability of the open pit highwall slope at PIT 22 GN PT Kitadin Site Embalut, Kutai Kartanegara Regency, East Kalimantan Province was carried out with the aim to know the rock characteristics, to calculate slope geometry stable safety factors, and to recognize the type of landslide using a bishop method. The results of the modeling consist of several heights and slopes, as well as angles that is formed. Section AA’ has a safety factor value of 1.387, section BB has a safety factor of 1.482, section BB' has a safety factor value of 1.390, section DD' has a safety factor value of 1.318, section EE has a safety factor value of 2,381, section FF' has a safety factor value of 2.426, section GG' has a safety factor value of 2.424, section HH 'has a safety factor value of 2.339.

Application of µ-Raman spectroscopy to the study of the corrosion products of archaeological coins

<p>In this paper, a study of the corrosion products formed on archaeological bronze artefacts excavated in Tharros (Sardinia, Italy) is presented. The investigation was carried out by means of the combination of different analytical techniques, including optical microscopy, micro-Raman spectroscopy (µ-RS), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy and X-ray diffraction. The artefacts under study are three bronze coins from the Phoenician–Punic period that are deeply corroded due to the chloride-rich soil of the Tharros excavation site. µ-Raman spectroscopy was chosen to investigate the corroded surfaces of the artefacts because it is a non-destructive technique, it has high spatial resolution, and it makes it possible to discriminate between polymorphs and correlate colour and chemical composition. Through µ-RS, it was possible to identify different mineralogical phases and different polymorphs, such as cuprite (Cu₂O), copper trihydroxychloride [Cu₂Cl(OH)₃] polymorphs, hydroxy lead chloride laurionite [PbCl(OH)] and calcium carbonate polymorph aragonite. The experimental findings highlight that micro-Raman spectroscopy can be used to provide further knowledge regarding the environmental factors that may cause the degradation of archaeological bronzes in soil.</p>

New Materials From Excavation «Orient» at Olbian Necropolis

At the excavation site in Olbia in 2010—2019 a new sector was investigated in wide areas, which was called the «Orient» after the name of the nearest benchmark. The specific features of this site were established, which was used for burials from the middle of the VI c. BC before the beginning of the III c. AD. In this regard, the generalization of the results obtained has become relevant, as well as the introduction of finds from the Roman period into the scientific circulation. In total, 1064 m2 were uncovered during the research. The average depth was 1,0—1,1 m from the modern surface. The stratigraphy of the excavation is simple: a layer of turf and humus up to 0,2 m thick lies on top, below there is a layer of light (dark yellow) sandy loam with various impurities, and under it is a layer of red-colored pre-continental loam with separate inclusions of «white-eye». In this area, 70 burials of various types of different time periods were discovered, as well as 62 other objects associated with the funeral and memorial tradition. 24 burials and ten other objects are dated by the Roman period. Eight types of burial structures have been identified. Based on this, the following conclusions were identified. In the Roman period, rare types of burial structures appeared in the area under study, in number greater than in the rest of the necropolis. There is a lack of uniformity in the layout and direction of burials. The memorial sites are characterized by the complete absence of gravestones known at Olbian necropolis of the Roman period.