Research on Bearing Mechanism and Spatial Layout Designing Parameters of Arch Support in Large Section Tunnel

2019 ◽  
Vol 37 (5) ◽  
pp. 4421-4434 ◽  
Author(s):  
Hui Qi ◽  
Wei Lu ◽  
Tiantao Zhang ◽  
Hongbin Chen ◽  
Zhaoming Chi ◽  
...  
PANALUNGTIK ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 41-60
Author(s):  
Nanang Saptono

The capital of Ciamis Regency has experienced several displacements. During the reign of Raden Adipati Aria Kusumadiningrat the development of the capital was encouraged to develop into a city. After the kulturstelsel era, many European capitalists invested in Ciamis. At the beginning of the 20th century economic infrastructure, especially the means of distribution of commodities is much needed. Building economic facilities have sprung up in several locations in Ciamis. Such conditions result in the development of the city. This study aims to get a picture of the spatial layout of Ciamis and the city development process. The research method applied descriptive research. Data collection is done through direct observation in the field and accompanied by the utilization of instrument in the form of ancient maps. In the area of Ciamis City there are still some old building objects that can be used as a spatial bookmark of the city. At a glance the city's development spontaneously, but visible on the basis of existing infrastructure, in the 20th century the city of Ciamis showed a planned city. The growth of Ciamis city is of course influenced by several factors including economic and geographical factors.Keywords: city, layout, planned, industrial area


Author(s):  
Katie Demakopoulou ◽  
Nicoletta Divari-Valakou ◽  
Monica Nilsson ◽  
Ann-Louise Schallin

Excavations in Midea continued in 2007 as a Greek-Swedish programme under the direction of Dr Katie Demakopoulou in collaboration with Dr Ann-Louise Schallin. In the West Gate area excavation continued in the west part of the building complex that abuts the fortification wall. Room XIV was excavated with abundant remains of LH IIIB2 pottery. A sealstone with a unique, possibly ritual, scene was also found. On the lower west terrace of the acropolis excavation continued in Trench C, where a large section of the fortification wall was uncovered. Room I was excavated here, adjacent to the inner face of the fortification wall. Finds in this room date to the early phase of LH IIIC, under which there was ample evidence of the LH IIIB2 destruction, including human skeletons. Under this debris, a large opening leading to a gallery or syrinx through the thickness of the fortification wall was found. Excavation was resumed also in the East Gate area, where a new wall was revealed in the baulk between Trench 3 and Room 9. The wall is perpendicular to the citadel wall and borders Trench 3. Excavation was also resumed in Trenches 9 and 14. The latest Mycenaean material in this area dates to LH IIIB2, but there is evidence of post-Bronze Age activity, which is demonstrated mainly by pottery finds.


Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 434
Author(s):  
Qingqi Hong ◽  
Yiwei Ding ◽  
Jinpeng Lin ◽  
Meihong Wang ◽  
Qingyang Wei ◽  
...  

With the rapid development of artificial intelligence and fifth-generation mobile network technologies, automatic instrument reading has become an increasingly important topic for intelligent sensors in smart cities. We propose a full pipeline to automatically read watermeters based on a single image, using deep learning methods to provide new technical support for an intelligent water meter reading. To handle the various challenging environments where watermeters reside, our pipeline disentangled the task into individual subtasks based on the structures of typical watermeters. These subtasks include component localization, orientation alignment, spatial layout guidance reading, and regression-based pointer reading. The devised algorithms for orientation alignment and spatial layout guidance are tailored to improve the robustness of our neural network. We also collect images of watermeters in real scenes and build a dataset for training and evaluation. Experimental results demonstrate the effectiveness of the proposed method even under challenging environments with varying lighting, occlusions, and different orientations. Thanks to the lightweight algorithms adopted in our pipeline, the system can be easily deployed and fully automated.


2020 ◽  
Vol 9 (1) ◽  
pp. 193-209
Author(s):  
Sudipta Biswas ◽  
Sukumar Pal

Tribal communities in India are most deprived. Socio-economically, they are poor and marginalised. The root cause of socio-economic marginalisation can be attributed to alienation of tribal people from their land, territory and resources. The overall situation of the tribal population of West Bengal is not better than the national average, even more deprived than the tribal population of other states. Despite progressive land reform laws and political commitment to implement such laws, issues of tribal land rights have not been addressed adequately. There is no such exclusive study to understand the situation of tribal land rights in the state of West Bengal. This article analyses the status of tribal land rights in the state context and makes some suggestions for improving the situation. It is found that despite distribution of land titles, a large section of the tribal population remains landless. A sizable portion has not received received record-of-rights. Claims of many tribal people for forest patta remain pending or stand rejected. Tribal land alienation continues to be a matter of concern. The state has not taken any concrete steps for the restoration of unlawfully alienated tribal lands. A large section of the tribal sharecroppers in the state remain unrecorded.


Heritage ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1375-1387
Author(s):  
Jiazhen Zhang ◽  
Jeremy Cenci ◽  
Vincent Becue

As the material carrier of industrial heritage, industrial landscape planning integrates industrial heritage, post-industrial, and industrial tourism landscapes. In this study, we define the concept of industrial landscape planning. As a subsystem of urban planning, we study industrial landscape planning by using the theories and methods of urban planning. As an example, we consider Belgium and identify the main categories of industrial landscape planning as industrial heritage landscape and industrial tourism landscape. We use an ArcGIS spatial analysis tool and kernel density calculations and reveal the characteristics of four clusters of industrial heritage spatial layout in Belgium, which match its located industrial development route. Each cluster has unique regional characteristics that were spontaneously formed according to existing social and natural resources. At the level of urban planning, there is a lack of unified re-creation. Urban planning is relatively separated from the protection of industrial heritage in Belgium.


2019 ◽  
Vol 136 ◽  
pp. 04023
Author(s):  
Ming Zhao ◽  
Ke Li ◽  
Hong Yan Guo ◽  
KaiCheng Hua

Based on the special geological conditions of a tunnel in Qingyuan section of Huizhou-Zhanzhou Expressway, FLAC3d numerical simulation software is used to simulate the rheological properties and instability of surrounding rock in large-section fully weathered sandstone section, and the stability and loss of surrounding rock are analyzed. The deformation of the dome and the face at steady state is analyzed. It is found that: 1) when the surrounding rock is in a stable state, the deformation curve of the dome is smooth. When the surrounding rock of the face is unstable, the front of the face appears ahead. Deformation should be first strengthened on the surrounding rock in front of the face. 2) The arched foot is an important part of the instability of the surrounding rock. In order to prevent the expansion of the collapsed part, the arched part should be reinforced. 3) In order to obtain the limit state of surrounding rock stability, the strength of surrounding rock is reduced, and the strength reduction coefficient corresponding to the displacement sudden point is taken as the safety factor of rock stability around the hole, and the stability safety coefficients of surrounding rock of each construction step are greater than 1.2. 4) The dynamic standard values of deformation control in the whole construction stage are obtained by analyzing the deformation curves of each data monitoring point with time in the corresponding time period of each construction step.


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