Construction Technology Construction Site Control and Optimization Countermeasures

2021 ◽  
Keyword(s):  
Construction Technology ◽  
Construction Site ◽  
Site Control

Study on Concrete Construction Technology of High-Rise Building

2015 ◽  
Vol 730 ◽  
pp. 93-96
Author(s):  
Ya Guo
Keyword(s):  
Control Method ◽  
Construction Method ◽  
Construction Technology ◽  
Construction Site ◽  
Practical Application ◽  
Concrete Construction ◽  
High Rise ◽  
High Rise Building ◽  
Key Points ◽  
Technical Measures

This paper introduces the features and key points of construction of high-rise buildings. Combined with the practical application, the technology of concrete construction is put forward, as well as the control method of concrete pouring quality. According to the specific conditions of construction site, the construction method of foundation from shallow to deep is adapted. The different placement scheme and technical measures are made.

scholarly journals Study on the technology of grouting and reinforcing the foundation of a railway bridge above shallow old mine goaf

2018 ◽  
Vol 169 ◽  
pp. 01041
Author(s):  
Hui-Quan Sui ◽  
Chun-Yuan Bait
Keyword(s):  
Fast Track ◽  
Construction Technology ◽  
Construction Site ◽  
Railway Bridge ◽  
Foundation Treatment ◽  
Pressure Grouting ◽  
Dip Angle ◽  
Bridge Foundation ◽  
The City ◽  
Design Construction

The city fast track railway bridge studied in this paper is located above an old mined out area. There is a 1500m2 underground goaf in the construction site with a depth of 30.8~53.2m, the seam thickness is 2.0~2.5m and the dip angle is 50~63 degrees. Although the mine has been abandoned for many years, there are still a lot of underground cavities. Collapse pits occurred on the surface occasionally till this day, especially during the rainy season. In order to make the design safe and reliable, drilling pressure grouting technique is proposed to fill and reinforce the foundation of the site. Proposed technique is tested by several experiments in simulated underground mined out area for the foundation treatment. The technical design, construction technology, grouting and reinforcement effect of the project are studied and summarized. The results of the experiment showed a stable and safe bridge foundation has been achieved. The proposed technique was then applied to on site experiment and pasted all tests.

scholarly journals SAFETY OF TECHNOLOGICAL PROJECTS USING MULTI-CRITERIA DECISION MAKING METHODS / DARBUOTOJŲ SAUGOS STATYBVIETĖSE SPRENDINIŲ DAUGIATIKSLIS VERTINIMAS

2011 ◽  
Vol 17 (2) ◽  
pp. 177-183 ◽  
Author(s):  
Titas Dėjus
Keyword(s):  
Construction Projects ◽  
Point Of View ◽  
Construction Technology ◽  
Construction Site ◽  
Mathematical Methods ◽  
Construction Sites ◽  
Safety Standard ◽  
Technology Project ◽  
Safety Design

The article analyzes a construction technology project as a safety standard document for a construction site and describes the application of mathematical methods at the stages of construction and design. Due to the fact that the construction project consists of (safety point of view) the site plan and technological cards (notably these documents indicate safety design solutions), the indicators making up a comparable set of indicators to evaluate the site plan, technological cards and the entire project may vary and be diverse. Practice shows that the construction technology project or its parts thereof are to be assessed using 5 to 7 parameters, as in case of a larger quantity of indicators, the significance of each indicator becomes relatively lower and has effect on the priorities of line formation. To ensure the safety of workers on construction sites, when preparing construction technology projects, the application of experimental design is proposed, thus starting the evaluation of the quality of technological solutions to construction projects in terms of safety employing multicriteria mathematical methods. Santrauka Šiame straipsnyje analizuojamos statybos darbų technologijos projekto, kaip darbuotojų saugos norminio dokumento, rengimo sąlygos ir aplinkybės bei matematinių metodų taikymo galimybės rengiant saugos darbe sprendinius statybos paruošimo ir projektavimo etape. Kadangi statybos darbų technologijos projektas susideda (saugos darbe požiūriu) iš statybvietės plano ir technologinių kortelių (būtent šiuose dokumentuose užfiksuojami saugos darbe projektiniai sprendiniai), tai ir rodikliai, sudarantys lyginamų rodiklių aibę ir vertinantys statybvietes planą, technologines korteles ir visą projektą, gali būti labai įvairūs ir skirtingi. Praktika rodo, kad statybos darbų technologijos projektas ar jo dalys vertintini pagal 5–7 rodiklius, nes, esant didesniam rodiklių skaičiui, kiekvieno rodiklio reikšmingumas santykinai mažėja ir tai turi įtakos prioritetų eilutės formavimui. Siekiant užtikrinti darbuotojų saugą statybvietėse siūloma rengiant statybos darbų technologijos projektus taikyti variantinį projektavimą, pradėti vertinti statybos darbų technologinių projektų sprendinių kokybę saugos darbe požiūriu ir tam taikyti daugiatikslius matematinius metodus.

scholarly journals Change Detection in Unmanned Aerial Vehicle Images for Progress Monitoring of Road Construction

Buildings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 150
Author(s):  
Dongyeob Han ◽  
Suk Bae Lee ◽  
Mihwa Song ◽  
Jun Sang Cho
Keyword(s):  
Deep Learning ◽  
Change Detection ◽  
Construction Projects ◽  
Progress Monitoring ◽  
Road Construction ◽  
Learning Model ◽  
Construction Technology ◽  
Construction Site ◽  
Time Series Images ◽  
Deep Learning Model

Currently, unmanned aerial vehicles are increasingly being used in various construction projects such as housing developments, road construction, and bridge maintenance. If a drone is used at a road construction site, elevation information and orthoimages can be generated to acquire the construction status quantitatively. However, the detection of detailed changes in the site owing to construction depends on visual video interpretation. This study develops a method for automatic detection of the construction area using multitemporal images and a deep learning method. First, a deep learning model was trained using images of the changing area as reference. Second, we obtained an effective application method by applying various parameters to the deep learning process. The application of the time-series images of a construction site to the selected deep learning model enabled more effective identification of the changed areas than the existing pixel-based change detection. The proposed method is expected to be very helpful in construction management by aiding in the development of smart construction technology.

Field Test Research on Treatment of Over-Wet Soil

2011 ◽  
Vol 261-263 ◽  
pp. 1003-1008
Author(s):  
Hua Wen ◽  
Song Gu ◽  
You Wen Su ◽  
Bao Long Zhu
Keyword(s):  
Quality Control ◽  
Field Test ◽  
Silty Sand ◽  
Construction Technology ◽  
Construction Site ◽  
Construction Techniques ◽  
Mixing Method

Take over-wet soil as research object, this paper presents the results of field test to verify the effect and feasibility of ash mixing method, one improvement technique for over-wet soil, on improving the performance of over-wet fill in construction site. This paper also studies the construction technology of utilization of over-wet fill in moist and rainy areas; determines construction parameters; summarizes construction techniques, methods and standards of quality control preliminary. The results show: ash mixing method can effectively improve the performance of over-wet fill; note that additives and over-wet fill should be fully stirred; this approach also works well for managing viscous silty sand.

scholarly journals ASSESSMENT OF HEALTH AND SAFETY SOLUTIONS AT A CONSTRUCTION SITE

2013 ◽  
Vol 19 (5) ◽  
pp. 728-737 ◽  
Author(s):  
Titas Dėjus ◽  
Jurgita Antuchevičienė
Keyword(s):  
Architectural Design ◽  
Occupational Safety ◽  
Evaluation Criteria ◽  
Health And Safety ◽  
Multiple Criteria Decision Making ◽  
Entropy Method ◽  
Large Set ◽  
Construction Technology ◽  
Construction Site ◽  
Protection Measures

To design solutions for occupational safety at a construction site for the construction technology project, an occupational hazard was assessed. Possible solutions for occupational safety depend on the number of criteria such as hazardous factors from which workers must be protected; the number of danger zones; architectural-design and structural solutions of a building; types of technical protection measures, etc. A large set of solutions for occupational safety predetermines the number of respective typical (or repeated) solutions, which are based on specific technical safety measures and are applicable depending on a hazardous factor; besides, it determines systematisation of the solutions on these grounds. It is suggested to use the Multiple Criteria Decision Making (MCDM) technique for assessment and selection of appropriate solutions for occupational safety. The authors propose formulating assessed alternatives from the typical solutions to ensure their quality and then apply the entropy method for determining relative significances of evaluation criteria and, finally, use Weighted Aggregated Sum Product Assessment (WASPAS) method for ranking of alternatives.

New Developments and Applications in Rail Transit Construction Technology

2014 ◽  
Vol 580-583 ◽  
pp. 1065-1071
Author(s):  
Run Jun Li ◽  
Ren Liang Shan ◽  
Qiu Lin Liao ◽  
Fu Mei Wu
Keyword(s):  
Electric Vehicles ◽  
Rail Transit ◽  
Construction Technology ◽  
Construction Site ◽  
Mining Method ◽  
New Developments ◽  
Construction Methods ◽  
Practical Engineering ◽  
Shield Machine ◽  
Method Construction

Combining with the practical engineering case, the paper summarizes the shallow mining method construction mechanism, construction methods and auxiliary technology. Aiming at the problems in the shield construction, the paper introduces the shield machine equipment’s latest comprehensive construction and technology, especially the shield technology dealing with the conglomerate stratum where the water and boulders is rich. It fills the domestic blank; Deep grouting and pipe roof reinforcement technology are aimed at the specific sources of risk; Whole cross-section of pallet trucks, electric vehicles, automatic metering and other new equipment have been widely applied to the construction site.

scholarly journals The Prefabricated Construction Project’s Problems and Countermeasures of Construction Site Management

2021 ◽  
Vol 261 ◽  
pp. 03020
Author(s):  
Sanlong Man
Keyword(s):  
High Precision ◽  
Seismic Performance ◽  
Green Building ◽  
Development Trend ◽  
Construction Technology ◽  
Construction Site ◽  
Site Management ◽  
High Quality ◽  
The Development Trend ◽  
Prefabricated Building

In comparison of the traditional building system, prefabricated building can reflect the development trend of building industrialization. Prefabricated building speeds up the construction by manufactured high-quality and high-precision components in the factory; then assembling the components to the construction site. Which can meet the requirements of green building without the need of cast-inplace and assembly. However, the application of prefabricated building also has limitations: prefabricated building is still lack of perfect relevant standards and component atlas; compared with the traditional pouring building, the mechanical and seismic performance of prefabricated building is poor. In the aspect of factory manufacturing, there are some problems. For example, because the form of prefabricated components is monotonous, it is difficult to meet the diverse appearance requirements of buildings. At present, the improvement of prefabricated building mainly focuses on the production and construction technology of components, but it lacks the improvement of the project management.

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