scholarly journals Disturbance Effect of Pipe Jacking Group Adjacent Excavation on Surrounding Soil

2021 ◽  
Vol 2021 ◽  
pp. 1-21
Author(s):  
Changbai Wang ◽  
Jimin Liu ◽  
Hua Cheng ◽  
Haibing Cai
Keyword(s):  
Mutual Influence ◽  
Water Pressure ◽  
Interaction Mechanism ◽  
Earth Pressure ◽  
Soil Disturbance ◽  
Disturbance Intensity ◽  
General Law ◽  
History Of ◽  
Pipe Jacking ◽  
Lateral Disturbance

Under the modern and complicated urban environment, clarifying the interaction mechanism and mutual influence mechanism between the urban tunnel and the surrounding environment is of considerable significance to the construction and operation of the tunnel. To understand and grasp the excavation-induced disturbance range and mechanism of adjacent pipeline jacking group on surrounding soils, this paper carries out relevant researches. Based on a case history of a three-hole parallel adjacent jacking pipeline in shallow overburden, a field test and assessment are performed. By setting monitoring points around the monitoring section, the earth pressure and water pressure under different buried depths and different spacing are monitored. For further discussion, the general law of soil disturbance around single-hole, double-hole, and three-hole jacking is investigated, the calculation method of lateral disturbance range and overlapping area range of pipe jacking group is deduced, and the degree of soil disturbance is evaluated as well. The results show that there will be different degrees of disturbance superposition in parallel multihole jacking due to the influence of the spacing, and the disturbance intensity is greatly affected by the parallel distance and buried depth.

Analysis of Soil Disturbance Caused by Pipe Jacking Construction

2012 ◽  
Vol 166-169 ◽  
pp. 1480-1483
Author(s):  
Yang Sun ◽  
Zheng Liang Xu
Keyword(s):  
Environmental Impacts ◽  
Lateral Displacement ◽  
Earth Pressure ◽  
Soil Disturbance ◽  
Field Monitoring ◽  
Jiangsu Province ◽  
The Common ◽  
Pipe Jacking ◽  
And Control ◽  
Maximum Lateral Displacement

Open caisson is one of the common used structures, as a working shaft in pipe jacking project. Disturbance of the soil behind the reaction wall of open caisson (SBRWOC) will reduce the efficiency of jacking, and affect safety of site operation and control. However, there are few studies on disturbance of SBRWOC. In this paper, combining the project of parallel pipe jacking passing under the Guan River in Jiangsu Province, China, field monitoring of SBRWOC is carried out during pipe jacking construction, including earth pressure and lateral displacement of SBRWOC. The maximum lateral displacement of SBRWOC is about 27 mm and the maximum earth pressure is 98.5 kPa. These results are useful for engineers to study disturbance characteristics of SBRWOC and reduce environmental impacts during pipe jacking construction.

scholarly journals Dilation of subglacial sediment governs incipient surge motion in glaciers with deformable beds

2020 ◽  
Vol 476 (2238) ◽  
pp. 20200033 ◽  
Author(s):  
B. M. Minchew ◽  
C. R. Meyer
Keyword(s):  
Pore Water ◽  
Flow Model ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Slip Rate ◽  
Effective Pressure ◽  
Ice Flow ◽  
History Of ◽  
Glacier Surges ◽  
Geographical Clustering

Glacier surges are quasi-periodic episodes of rapid ice flow that arise from increases in slip rate at the ice–bed interface. The mechanisms that trigger and sustain surges are not well understood. Here, we develop a new model of incipient surge motion for glaciers underlain by sediments to explore how surges may arise from slip instabilities within a thin layer of saturated, deforming subglacial till. Our model represents the evolution of internal friction, porosity and pore water pressure within the till as functions of the rate and history of shear deformation, and couples the till mechanics to a simple ice-flow model. Changes in pore water pressure govern incipient surge motion, with less permeable till facilitating surging because dilation-driven reductions in pore water pressure slow the rate at which till tends towards a new steady state, thereby allowing time for the glacier to thin dynamically. The reduction of overburden (and thus effective) pressure at the bed caused by dynamic thinning of the glacier sustains surge acceleration in our model. The need for changes in both the hydromechanical properties of the till and the thickness of the glacier creates restrictive conditions for surge motion that are consistent with the rarity of surge-type glaciers and their geographical clustering.

Creative communication of artistic systems M. Tsvetaeva and B. Pasternak

2021 ◽  
Vol 6 (2) ◽  
pp. 74-82
Author(s):  
Anastasia Valerievna Sebeleva
Keyword(s):  
Comparative Analysis ◽  
Comparative Studies ◽  
Mutual Influence ◽  
Integrated Approach ◽  
Literary Studies ◽  
Textual Information ◽  
Priority Direction ◽  
Literary Process ◽  
History Of ◽  
Mutual Communication

This article proceeds from the fact that the problem of interaction and mutual influence is quite acute in literary studies. In this regard, the relevance of the research is due, firstly, to the correspondence to the priority direction of modern literary studies associated with the comparative analysis of the text, and secondly, to the need to disclose the deep theoretical and artistic content of creative communication of such artistic personalities of the XX century as M. Tsvetaeva and B. Pasternak, whose legacy still contains many lacunae. The methodological basis of the research is an integrated approach, including comparative-historical, historical-literary, comparative-typological, system-analytical and biographical methods, as well as the method of comparative studies, which allows to study literary analogies and connections of different national literatures, their refraction in the texts of the authors studied. Hermeneutics contributed to the mental comprehension of the analyzed texts, the mental processing of textual information. An important episode in the history of world poetry was the correspondence-dialogue of iconic poets for their time: M. Tsvetaeva and B. Pasternak. Correspondence is valuable not only because it shows us the life of poets in relation to time. The creative aspect of correspondence is very important. The rapprochement manifested in it and at the same time the repulsion was deeply creative and left deep traces in the legacy of all its participants. Poets, albeit to varying degrees, concentrated and passionately, sought to define for themselves the essence of life and poetry. In the course of the research, the author of the article comes to the conclusion that, firstly, the literary process is characterized by a systematic nature in which authors and their works are in certain relationships to each other. Secondly, the thirteen-year correspondence of M. Tsvetaeva with B. Pasternak was very significant for literature. Thanks to mutual communication, creative interaction, the poets created unique, emotionally deep works.

scholarly journals Relationship between international law and religion

Globus ◽  
2020 ◽  
Author(s):  
H. Mammadov ◽  
◽  
Zh. Mammadova ◽  
Keyword(s):  
International Relations ◽  
International Law ◽  
Detailed Analysis ◽  
Mutual Influence ◽  
First Century ◽  
Basic Principles ◽  
History Of ◽  
Twenty First Century ◽  
History Of International Law

This article is devoted to the problems of mutual influence and interaction of international law and religion. In particular, it examines the development of international law and the sources of religion. In addition, which areas of international law are most developed under the influence of religious provisions. The history of international law knows various theories under which international law has improved. The article provides a detailed analysis of these theories and views, noting the institutions of international law that arose directly under the influence of religion. For example, it is noted that under the influence of Relia, the UN Charter codifies the basic principles of international law, etc. In addition, it shows the challenges of religion to international law and relations in the era of globalization in the twenty-first century, which led even to the undermining of modern international relations and traditional religious concepts caused by the " return of religion” in international relations; secondly, it presents and discusses the research path of religion and international relations. Finally, a brief analysis of the 2 impact of the global revival of religion and the ”return of religion" in international law and international relations has been carried out

Coefficients of active earth pressure with seepage effect

2012 ◽  
Vol 49 (6) ◽  
pp. 651-658 ◽  
Author(s):  
Pérsio L.A. Barros ◽  
Petrucio J. Santos
Keyword(s):  
Pore Water Pressure ◽  
Water Pressure ◽  
Retaining Wall ◽  
Drainage System ◽  
Numerical Procedure ◽  
Ground Surface ◽  
Earth Pressure ◽  
Friction Angle ◽  
Active Earth Pressure ◽  
Plane Failure

A calculation method for the active earth pressure on the possibly inclined face of a retaining wall provided with a drainage system along the soil–structure interface is presented. The soil is cohesionless and fully saturated to the ground surface. This situation may arise during heavy rainstorms. To solve the problem, the water seepage through the soil is first analyzed using a numerical procedure based on the boundary element method. Then, the obtained pore-water pressure is used in a Coulomb-type formulation, which supposes a plane failure surface inside the backfill when the wall movement is enough to put the soil mass in the active state. The formulation provides coefficients of active pressure with seepage effect which can be used to evaluate the active earth thrust on walls of any height. A series of charts with values of the coefficients of active earth pressure with seepage calculated for selected values of the soil internal friction angle, the wall–soil friction angle, and the wall face inclination is presented.

On the issue of the British presence in Egypt: the business of “Thomas Cook and Son” in the assessment of contemporaries (the last third of the 19th century)

2021 ◽  
pp. 224-232
Author(s):  
Anna Y. Vasileva
Keyword(s):  
Great Britain ◽  
19Th Century ◽  
English Language ◽  
Mutual Influence ◽  
Nile Valley ◽  
Civilizing Mission ◽  
Mass Tourism ◽  
Colonial Policy ◽  
History Of ◽  
The 19Th Century

The purpose of the study is to determine how the development of the tourism business of Thomas Cook and Son in the Nile Valley influenced the perception and assessment of contemporaries of the British presence in Egypt at the end of the 19th century. The relevance of the analyzed problem lies in the fact that the study of the history of tourism in the era of New imperialism allows us to supplement our understanding of the representations of the empire and private busi-ness and their mutual influence. It is substantiated that, according to the views of contemporaries, the activities of the company contributed to the creation of conditions for the economic develop-ment of Egypt, opened these territories to the world, providing free movement along the Nile, and contributed to the spread of the English language, making this country more “civilized” in the eyes of Europeans. We conclude that, at the same time, the handbooks of the company broadcasted the achievements of the imperial policy of Great Britain, reinforcing the idea of the positive conse-quences of the British occupation for Egypt. It is concluded that the commercial success of private business became a visible manifestation of the success of the England’s civilizing mission. The research materials can be used to further study the relationship between the development of mass tourism and the colonial policy of Great Britain.

The Persistence of Mutual Influence: Europe and Latin America in the 1820s

2011 ◽  
Vol 41 (3) ◽  
pp. 387-396 ◽  
Author(s):  
Matthew Brown ◽  
Gabriel Paquette
Keyword(s):  
Nineteenth Century ◽  
Latin America ◽  
Latin American ◽  
Atlantic World ◽  
Slave Trade ◽  
Mutual Influence ◽  
Cultural Influences ◽  
Colonial Rule ◽  
Old World ◽  
History Of

The independence of Latin America from colonial rule in the first decades of the nineteenth century is generally held to have broken the bonds which had linked Europe to the Americas for three centuries. This article contends that a re-examination of the decade of the 1820s reveals the persistence, as well as the reconfiguration, of connections between the Old World and the New after the dissolution of the Iberian Atlantic monarchies. Some of these multi-faceted connections are introduced and explored, most notably commercial ties, intellectual and cultural influences, immigration, financial obligations, the slave trade and its suppression, and diplomatic negotiations. Recognition and appreciation of these connections has important consequences for our understandings of the history of the Atlantic World, the ‘Age of Revolutions’, and Latin American Independence itself.

Introduction

2017 ◽  
Author(s):  
Anna Marmodoro ◽  
Irini-Fotini Viltanioti
Keyword(s):  
Late Antiquity ◽  
Mutual Influence ◽  
The Other ◽  
Western Thought ◽  
Early Christian ◽  
History Of ◽  
Christian Thought ◽  
The One

This volume explores how some of the most prominent philosophers and theologians of late antiquity conceptualize the idea that the divine is powerful. The period under consideration spans roughly four centuries (from the first to the fifth CE), which are of particular interest because they ‘witness’ the successive development and mutual influence of two major strands in the history of Western thought: Neoplatonism on the one hand, and early Christian thought on the other. Representatives of Neoplatonism considered in this volume are Plotinus (...

scholarly journals Study on Water Sealing Mechanism of Earth Pressure Balanced Shield Subject to High Water Pressure.

1996 ◽  
pp. 189-198
Author(s):  
Akimasa Waku ◽  
Hideharu Miyazawa ◽  
Hiroshi Yoshino ◽  
Syunsuke Sakurai
Keyword(s):  
Water Pressure ◽  
Earth Pressure ◽  
High Water ◽  
Sealing Mechanism ◽  
High Water Pressure
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