本文選題：地面沉降　切入點：數(shù)據(jù)字典　出處：《長安大學》2014年碩士論文　論文類型：學位論文

【摘要】：近幾十年來，政府相關(guān)部門投入了大量的人力物力及財力，加強對地面沉降的監(jiān)測，包括精密水準測量、地下水動態(tài)監(jiān)測、GPS實時觀測、分層標自動監(jiān)測等，積累了大量的數(shù)據(jù)和資料，如何合理有效的管理、分析及利用這些數(shù)據(jù)，從中提取地面沉降相關(guān)信息，使其得到更好的應(yīng)用，是擺在地面沉降控制與防治工作者面前的重要課題。 本研究依托《全國地面沉降監(jiān)測與防治綜合研究與信息系統(tǒng)建設(shè)》項目，根據(jù)已有的地面沉降資料、地面沉降觀測設(shè)施和動態(tài)監(jiān)測數(shù)據(jù)相關(guān)資料，利用GIS技術(shù)和數(shù)據(jù)庫管理系統(tǒng)，對地面沉降監(jiān)測數(shù)據(jù)進行科學規(guī)范的管理，建立動態(tài)的地面沉降數(shù)據(jù)庫，為地面沉降災(zāi)害管理信息系統(tǒng)提供數(shù)據(jù)支撐，并為城市規(guī)劃、建設(shè)及地面沉降的防治工作等提供及時準確的信息。 論文取得以下研究成果： 1）對多源數(shù)據(jù)進行分類。論文根據(jù)應(yīng)用需求及數(shù)據(jù)信息的不同，對所采集的信息進行歸類，對數(shù)據(jù)庫進行規(guī)劃。地面沉降數(shù)據(jù)按照工作進程劃分為調(diào)查、鉆探和槽探、監(jiān)測三類數(shù)據(jù)。 2）建立統(tǒng)一編碼體系。在分析地面沉降多源數(shù)據(jù)特點及實際應(yīng)用需求的基礎(chǔ)上，建立了統(tǒng)一的編碼體系對數(shù)據(jù)進行管理，確保各類監(jiān)測點、調(diào)查點的唯一性，避免數(shù)據(jù)冗余，以便于統(tǒng)一協(xié)調(diào)管理和查詢。 3）完成數(shù)據(jù)字典設(shè)計。地面沉降數(shù)據(jù)采集系統(tǒng)屬性數(shù)據(jù)庫基于數(shù)據(jù)字典生成，數(shù)據(jù)字典的設(shè)計使屬性數(shù)據(jù)庫生成更加靈活，增強了地面沉降采集系統(tǒng)實現(xiàn)的靈活性和高效性。數(shù)據(jù)字典包含屬性數(shù)據(jù)庫中所有屬性表及各屬性表的數(shù)據(jù)項，保證各屬性表中相同數(shù)據(jù)項及數(shù)據(jù)項代碼的唯一性，消除數(shù)據(jù)冗余；同時數(shù)據(jù)字典的設(shè)計減少了系統(tǒng)開發(fā)的工作量，系統(tǒng)設(shè)計與開發(fā)不會受制于數(shù)據(jù)庫，亦無需因數(shù)據(jù)庫設(shè)計的改變而重新設(shè)計與開發(fā)。
[Abstract]:In recent decades, the relevant government departments have invested a great deal of manpower, material and financial resources to strengthen the monitoring of land subsidence, including precision leveling, dynamic monitoring of groundwater and GPS real-time observation, automatic monitoring of stratified marks, etc. Accumulated a lot of data and data, how to reasonably and effectively manage, analyze and use these data, extract the relevant information of land subsidence, so that it can be applied better. It is an important subject in front of land subsidence control and prevention workers. This research relies on the project "Comprehensive Research and Information system Construction of National Land subsidence Monitoring and Prevention", according to the existing land subsidence data, land subsidence observation facilities and dynamic monitoring data related data, By using GIS technology and database management system, land subsidence monitoring data are managed scientifically and normatively, and dynamic land subsidence database is established to provide data support for land subsidence disaster management information system and urban planning. Provide timely and accurate information for construction and prevention of land subsidence. The research results are as follows:. 1) classifying the multi-source data. According to the application requirements and different data information, the paper classifies the collected information and plans the database. The land subsidence data is divided into investigation, drilling and grooving according to the working process. Monitor three types of data. 2) establishing a unified coding system. On the basis of analyzing the characteristics of land subsidence multi-source data and practical application requirements, a unified coding system is established to manage the data, to ensure the uniqueness of various monitoring points and survey points, and to avoid data redundancy. To facilitate the coordination of management and query. 3) complete the design of data dictionary. The attribute database of land subsidence data acquisition system is based on data dictionary, and the design of data dictionary makes attribute database more flexible. The data dictionary includes all the attribute tables and the data items of each attribute table in the attribute database to ensure the uniqueness of the same data items and the code of the data items in each attribute table. At the same time, the design of data dictionary reduces the workload of system development, and the system design and development will not be restricted by database, nor need to be redesigned and developed because of the change of database design.
【學位授予單位】：長安大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：P208;TP311.12

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