scholarly journals Deformation Behavior of Deep Foundation Pit under Both Overloading and Unloading Conditions

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Wei Gang ◽  
Zhou Xin-Xin ◽  
Xu Yin-Feng ◽  
Zhang Li ◽  
Zhang Xin-Hai
Keyword(s):  
Maximum Rate ◽  
Earth Pressure ◽  
The South ◽  
Deep Foundation ◽  
Foundation Pit ◽  
South Side ◽  
Deep Foundation Pit ◽  
High Rise ◽  
The North ◽  
North Side

A deep foundation pit in a station of the Hangzhou subway is adjacent to new high-rise residential buildings on the north side and to the Evergrande foundation pit being excavated on the south side. This work considers the excavation of the foundation pit in the subway station as the research subject, focuses on the difference of the deformation and Earth pressure between the north side and the south side of the foundation pit under these special working conditions through the analysis of the measured data, and compares it with an ordinary foundation pit. Analyzing the measured data reveals that the horizontal displacement of the retaining wall and the ground settlement are far larger on the north side than on the south side, and both often exceed the deformation alarm value; the deformation of the ordinary foundation pit is between the deformation of the overloaded (north) side and that of the unloaded (south) side of the foundation pit. Moreover, the maximum rate of the horizontal creep of the soil and the maximum rate of the creep caused by the ground settlement on the north side of the foundation pit are larger than those on the south side of the foundation pit; the maximum rate of the horizontal creep of the ordinary foundation pit is between the two. The active Earth pressure on the pit wall on the north side is higher than that on the south side of the foundation pit, and because of the surrounding unloading, passive Earth pressure is generated at the bottom of the pit wall on the south side of the foundation pit, which causes it to shift to the outside of the foundation pit. The settlement of the surrounding high-rise buildings and the settlement of the columns are all within the range of the alarm values; also, the buildings settle evenly. Due to the excavation and unloading on the south side of the foundation pit, the uplift of the columns is not considerable.

scholarly journals Pedestrian-Level Wind Environment Assessment of Shenyang’s Residential Areas through Numerical Simulations

2021 ◽  
Vol 14 (1) ◽  
pp. 380
Author(s):  
Jiuhong Zhang ◽  
Xiaoqian Zhang
Keyword(s):  
Residential Buildings ◽  
Climatic Conditions ◽  
Residential Areas ◽  
The South ◽  
Wind Environment ◽  
South Side ◽  
High Rise ◽  
The North ◽  
North Side ◽  
Typical Layout

In recent decades, increasing urbanization has increased construction land shortages, which has made people pay more attention to the utilization of vertical space. The emergence of more and more high-rise buildings has affected the wind environment at the pedestrian level, especially in residential areas. In this research, the typical patterns of the layouts of residential buildings in Shenyang were investigated and summarized, and the wind environment of the residential areas of different architecture layouts was simulated according to the climatic conditions in Shenyang. After analyzing the simulation results, a typical layout mode for the residential areas in Shenyang was developed to facilitate the establishment of a favorable wind environment. In comparison with different building layouts, a staggered layout of slab buildings, half-enclosed layout of point buildings with openings on the south side, slab-point combined buildings with slab buildings on the north side, and point buildings on the south side were found to be the most suitable layouts for Shenyang’s climate. Thus, this study can provide guidance to designers and urban planners in addition to practical suggestions for residential planning.

scholarly journals A Study on Urban Furniture: Nicosia Old City

2019 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Mine Kuset Bolkaner ◽  
Selda İnançoğlu ◽  
Buket Asilsoy
Keyword(s):  
Urban Space ◽  
Urban Life ◽  
The South ◽  
Urban Identity ◽  
South Side ◽  
The North ◽  
North Side ◽  
Old City ◽  
Street Furniture ◽  
The City

Urban furniture can be defined as aesthetics and comfort elements that reflect the identity of a city and enable the urban space to become livable. Urban furniture is an important element of the city in order to improve the quality of urban life, to create a comfortable and reliable environment and to meet the needs of the users in the best way. For designing these elements, the social, economic, cultural and architectural structure of the city should be considered and evaluated. It is important to adapt the urban furniture to the urban texture and to the cultural structure achieving an urban identity, in order to ensure the survival and sustainability of the historical environments. In this study, a study was carried out in the context of urban furniture in Nicosia Walled City, which has many architectural cultures with its historical texture. In this context, firstly the concept of urban identity and urban furniture was explained and then, information about urban furniture was given in historical circles with urban furniture samples from different countries. As a field study, a main axis was determined and the streets and squares on this axis were discussed. These areas have been explored starting from Kyrenia Gate in North Nicosia; İnönü Square, Girne Street, Atatürk Square, Arasta Square, Lokmacı Barricade and on the south side Ledra Street and Eleftherias Square. In this context, the existing furniture in the North and South were determined and evaluated in terms of urban identity accordingly. As a result, it can be suggested that the existing street furniture equipments, especially on the north side, do not have any characteristic to emphasize the urban identity. According to the findings, it was determined that the urban furniture in the streets and squares on the north side is generally older and neglected, and does not provide a unity with the environment, whereas on the south side, these elements on the street and square are relatively new, functional and environmentally compatible.Key words: urban furniture, historical environment, urban identity, Nicosia Old City

scholarly journals II.—Excavations at Sparta, 1906: § 12.—The Roman Stoa and the later Fortifications

1906 ◽  
Vol 12 ◽  
pp. 415-430
Author(s):  
Ramsay Traquair
Keyword(s):  
Plate Viii ◽  
The South ◽  
South Side ◽  
South Eastern ◽  
The North ◽  
Complete Part ◽  
North Side ◽  
Imperial Period ◽  
East And West ◽  
Barrel Vaults

In plan the walls surrounding the Acropolis of Sparta form an irregular oblong, terminated to the east and west by two small hills which formed citadels or outlook points. Though no single complete part remains, and in many places the walls are levelled to the ground, the lines can still be traced fairly completely. (Plate VIII. 3.)At the south eastern corner are the ruins of a Roman Stoa of the Imperial period (A). They shew a series of small compartments (Fig. 1), covered with barrel vaults, ten on either side of three larger central rooms, which are roofed with crossgroined vaults and large semicircular niches at the back. The ground on the north side is as high as the vaults and originally must have formed a terrace overlooking the street on to which the Stoa opened on its south side.

scholarly journals Observations upon the marine barometer, made during the examina­tion of the coasts of New Holland and New Wales, in the Years 1801, 1802, and 1803. By Matthew Flinders, Esq. Com­mander of His Majesty’s Ship Investigator . In a letter to the Right Hon. Sir Joseph Banks, K. B. P. R. S. &c. &c. &c

1832 ◽  
Vol 1 ◽  
pp. 230-232
Keyword(s):  
The State ◽  
The Other ◽  
South Coast ◽  
The South ◽  
South Side ◽  
The North ◽  
North Side ◽  
Northern Half ◽  
Southern Half ◽  
The Right

The chief circumstance that induced Capt. Flinders to think his observations Upon the marine barometer were worthy of attention, was the coincidence that took place between the rising and falling of the mercury, and the setting in of winds that blew from the sea and from off the land, to which there seemed to be at least as much reference as to the strength of the wind or the state of the atmosphere. Our author’s examination of the coasts of New Holland and the other parts of the Terra Australis, began at Cape Leuwen, and con­tinued eastward along the south coast. His observations, which, on account of their length, we must pass over, show, that a change of wind from the northern half of the compass to any point in the southern half, caused the mercury to rise; and that a contrary change caused it to fall. Also, that the mercury stood considerably higher When the wind came from the south side of east and west, than when, in similar weather, it came from the north side.

Part II. The Perseia Fountain House

1953 ◽  
Vol 48 ◽  
pp. 19-29 ◽  
Author(s):  
A. J. B. Wace ◽  
M. R. Holland ◽  
M. S. F. Hood ◽  
A. G. Woodhead
Keyword(s):  
Soft Rock ◽  
The South ◽  
South Side ◽  
The North ◽  
North Side ◽  
Exact Position ◽  
Fountain House ◽  
East West

In 1892 Tsountas in the course of exploration on the top of the ridge between the ‘Tomb of Clytemnestra’ and the Lion Gate found a painted circular cap of poros (o·61 m. in diameter), which from the cuttings in it clearly seems to have been connected with some form of installation for water (Plate 14, b). It bears an inscription which as restored refers to Perseus. This inscribed cap Tsountas says he found among later ruins, but he did not specify the exact position. In 1922 therefore we investigated the ruins of apparently Hellenistic date which lie directly to the south of the modern carriage road on the top of the ridge to the north of the ‘Tomb of Clytemnestra’. A long terrace wall of ashlar work in poros was found running in an east-west direction along the south side of the modern road. In front of it, against its north side, lie two cement-lined basins (Plate 14, a). When these were first found and partially examined in 1922 it was suggested that they might be part of a gymnasium of Hellenistic date. At the same time a trial trench XIa by side of the steps was dug down about 0·25 m. into the soft rock below. In 1939 further trials were made behind (to the south of) the western part of the main terrace wall. Trench VII, which was dug to rock, was part of this work. At the same time the curved wall was exposed and part of the ‘votive deposit’ was excavated. The pottery then found, which was lost in the Nauplia Museum during the war, was of the same character as that found in 1952 and described below. In 1952, as part of the programme of exploration on the top and sides of the ridge which runs westward from the Lion Gate, it was decided to clear these ruins completely and study and plan them afresh.

The Applied Research of Safety Monitoring and Forecasting Technology in the Foundation Pit Supporting Construction

2013 ◽  
Vol 443 ◽  
pp. 214-217
Author(s):  
Zhen Xi Yu
Keyword(s):  
Applied Research ◽  
Technical Process ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Monitoring Method ◽  
Engineering Construction ◽  
Deep Foundation Pit ◽  
High Rise ◽  
Monitoring And Forecasting ◽  
Control Accuracy

With the scale development of our high-rise buildings, together with the development and enhancing of monitoring technology of deep foundation pit supporting construction. Control accuracy is the main part for monitoring technical process in deep foundation pit supporting construction, the requirement of monitoring is higher and higher than before, relevant monitoring method, frock and tools, earthwork type of shipping and downriver way in engineering construction will develop in revolutionary way. In view of above mentioned, this paper try to do researching on monitoring technical process in deep foundation pit supporting construction in our country, hope to supply reference for counterparts.

scholarly journals XVII. Description of the mineral bason in the counties of Monmouth, Glamorgan, Brecon, Carmarthen, and Pembroke. By Mr. Edward Martin

1806 ◽  
Vol 96 ◽  
pp. 342-347 ◽  
Keyword(s):  
Iron Ore ◽  
The South ◽  
South Side ◽  
The North ◽  
North Side ◽  
South Wales ◽  
East And West ◽  
East End

1. The irregular oval line, delineated on the annexed map (Plate XIV.) shows nearly the inner edge of a limestone bason, in which all the strata of coal and iron ore (commonly called Iron Stone) in South Wales are deposited; the length of this bason is upwards of 100 miles, and the average breadth in the counties of Monmouth, Glamorgan, Carmarthen, and part of Brecon, is from 18 to 20 miles, and in Pembrokeshire only from 3 to 5 miles. 2. On the north side of a line, that may be drawn in an east and west direction, ranging nearly through the middle of this bason, all the strata rise gradually northward; and on the south side of this line they rise southward, till they come to the surface, except at the east end, which is in the vicinity of Pontipool, where they rise eastward.

scholarly journals Impact of High-Rise Buildings Construction Process on Adjacent Tunnels

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Haifeng Guo ◽  
Aijun Yao ◽  
Jiantao Zhang ◽  
Yijun Zhou ◽  
Yanfei Guo
Keyword(s):  
Earth Pressure ◽  
Scale Model ◽  
Construction Process ◽  
Deep Foundation ◽  
Deep Side ◽  
Foundation Pit ◽  
High Rise ◽  
Shallow Side ◽  
Deep Foundation Excavation ◽  
The Impact

The demand for buildings constructed along subway lines is increasing, and analysis of the impact of foundation excavation and building construction on adjacent tunnels is critical. This study investigated the variation law of tunnel deformation and surrounding earth pressure on an existing tunnel resulting from deep foundation excavation and the load of buildings. Four groups of scale model tests and corresponding numerical simulation calculations were conducted in four different modes: over unloading-loading, shallow-side unloading-loading, middle-side unloading-loading, and deep-side unloading-loading, which are according to the different relative position of the foundation pit and the tunnel. The results show that when the tunnel stretches across different areas, corresponding deformation occurs owing to the different mechanical mechanisms during excavation and loading. The results can provide evidence for the further study on the impact of adjacent construction process on the tunnels.

The Authorship of the Inscribed Pillar of Xanthos

1979 ◽  
Vol 29 ◽  
pp. 97-102 ◽  
Author(s):  
William A. P. Childs
Keyword(s):  
The South ◽  
West Side ◽  
South Side ◽  
The North ◽  
North Side

The Inscribed Pillar of Xanthos is the most elaborate example of the Lycian pillar tombs. It is important for its reliefs preserved in London and Istanbul but particularly for the long historical inscription in Lycian which covers the south, east, and half of the north side of the pillar shaft. This is followed on the north side by a Greek epigram and a moderately long inscription on the remainder of the north and the whole west side in Lycian B or Milyan. The date of the pillar is generally placed around 400 B.C. This is based on the style of the reliefs of the upper burial chamber and on the analysis of the historical inscription.The name of the author of the pillar appeared three times in the inscriptions – twice in the Lycian historical inscription (south side or a lines 1 and 29/30) and once in the Greek epigram (north side or c line 24, epigram line 5). Yet in the Lycian the name is missing entirely in both cases and in the Greek only the last two letters are preserved: [ … ]ις. The fact that he is called in the Lycian and Greek the son of Harpagos does not help identify him because this Harpagos is otherwise known only from two inscriptions, one still unpublished. Recently it has been argued by Laroche that the author of the inscription cannot be the formerly favoured Kherẽi (χerẽi) because the space for the name must have contained six letters. Bousquet has also shown that a plausible restoration of the name of the author of the inscription in the Greek epigram is [Gerg]is, the Greek equivalent of Kheriga (χeriga).

scholarly journals Displacement Monitoring during the Excavation and Support of Deep Foundation Pit in Complex Environment

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Zhouqiang Li
Keyword(s):  
Axial Force ◽  
Time History ◽  
Horizontal Displacement ◽  
Underground Water ◽  
Surface Settlement ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Deep Foundation Pit ◽  
Anchor Cable ◽  
The North

Taking a super large deep foundation pit project as an example, the horizontal displacement of crown beam and driveway, surface settlement, axial force of anchor cable, and underground water level in the construction process of the foundation pit are dynamically monitored and analyzed. The excavation deformation rule of the deep foundation pit and the influence of excavation on surrounding buildings are analyzed. The results show that, with the excavation of the foundation pit, the crown beam and driveway of the foundation pit incline towards the direction of the pit and eventually tend to be stable. The variation of axial force of the prestressed anchor cable in the first layer of the foundation pit is basically consistent with the variation of horizontal displacement time history. The variation trend of the groundwater level at each side of the foundation pit is different but tends to be stable in a short time. In the whole monitoring period, the cumulative settlement value of each area of the foundation pit is within the controllable range, but the surface settlement of the north side of the foundation pit and a surrounding building has not reached stability, so it is suggested to extend the monitoring time of settlement in the relevant area.

Sign in / Sign up

Export Citation Format

Share Document