日韩欧美国产综合_国产成人精品网址_欧美大波大乳巨大乳_激情综合五月网_99视频免费观看_欧美日韩国产综合久久_久久在线视频_国产小黄视频_丁香激情五月少妇_国产在线98福利播放视频

PDF全文閱讀

茍勝榮¹，張文學(xué)²，白立東³

（1.楊凌職業(yè)技術(shù)學(xué)院，陜西 咸陽 712100；

2.湖南鐵路科技職業(yè)技術(shù)學(xué)院，湖南 株洲 412006；

3.中國鐵路哈爾濱局集團有限公司大慶工務(wù)段，黑龍江 大慶163000）

 

摘 要：在深大基坑開挖過程中，基坑周圍土體會受到擾動，勢必會影響到基坑、基坑周圍建筑物和構(gòu)筑物的穩(wěn)定與安全。未解決基坑開挖過程中變形監(jiān)測周期過長而無法長期監(jiān)測以及監(jiān)測數(shù)據(jù)誤差等問題，以某工程實例為依據(jù)，對基坑周圍地表沉降變形進行監(jiān)測，以地表沉降監(jiān)測數(shù)據(jù)為基礎(chǔ)數(shù)據(jù)建立GM（1,1）預(yù)測模型，進行基坑后期沉降變形預(yù)測分析。結(jié)果表明：該模型預(yù)測結(jié)果能較好的反映基坑的沉降變形情況，預(yù)測精度能滿足工程需要，預(yù)測結(jié)果相對于實際觀測值表現(xiàn)出超前現(xiàn)象，可為類似工程建設(shè)提供參考。

 

關(guān)鍵詞：灰色理論；深基坑；變形預(yù)測；GM（1,1）模型

中圖分類號：TU921        

文獻標(biāo)志碼：A        

文章編號：1005-8249（2024）02-0070-05

DOI：10.19860/j.cnki.issn1005-8249.2024.02.013

 

GOU Shengrong1；ZHANG Wenxue2；BAI Lidong3

（1.Yangling Vocational and Technical College，Xianyang 712100，China；

2.Hunan Vocational College of Railway Technology，Zhuzhou 412006，China；

3. Daqing Permanent Way Department，China Railway Harbin Group Co.，Ltd.，Daqing 163000，Chian）

 

Abstract：In the process of excavation of deep foundation pit,the soil around the foundation pit will be disturbed, which will inevitably affect the stability and safety of the foundation pit ,the buildings and structures around the foundation pit.In order to solve the problems such as too long monitoring period for long-term monitoring and monitoring data error during excavation of foundation pit,the surface settlement deformation around the foundation pit was monitored based on a project example,and the GM (1,1) prediction model was established based on the surface settlement monitoring data to predict and analyze the late settlement deformation of foundation pit.The results show that the prediction results of this model can well reflect the settlement and deformation of foundation pit,the prediction accuracy of the two groups of data is respectively "good" and "qualified", the accuracy of the model can meet the engineering needs, and the prediction results are ahead of the actual observed values,which can provide reference for similar engineering construction.

Keywords：grey theory; deep foundation pit; deformation prediction; GM (1,1) model

 

 

基金項目：湖南省教育廳科學(xué)研究項目（21C1321）；楊凌職業(yè)技術(shù)學(xué)院科技創(chuàng)新項目（ZK21-17）。

作者簡介：茍勝榮(1987-)，男，碩士，副教授，主要研究方向：橋梁與隧道工程和建筑工程方面的教學(xué)與研究。

收稿日期：2023-04-25