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任睿祺 ，張旭輝 ，李振杰 ，陳世盛 ，王建磐 

（ 山西冶金巖土工程勘察有限公司 ，山西 太原 030002)

摘   要： 通過勘察一區域綜合辦公寫字樓主樓獲取土層詳細指標 ，利用土釘抗力參數計算選取最佳土釘墻  材料 ，并設計深基坑復合土釘墻支護方案與施工流程 。將設計好的施工方案輸入到 FLAC3D 軟件中模擬深基坑  支護結構 ，模擬不同地質影響下的側壓力系數 。經試驗驗證： 當土釘參數為 5 排 、鋼管嵌固深度參數為 2 m 時， 支護結構可以最大程度降低深基坑的水平位移與沉降； 在側壓力系數較大情況下 ，可以保持較低的豎直位移與  深基坑坑底隆起值 ，具有較好的支護效果。

關鍵詞： 地質影響； 深基坑； 復合土釘墻； 支護參數； 水平位移； 側壓力系數

中圖分類號： TU753. 62      

文獻標志碼： A      

文章編號： 1005-8249 (2024) 01-0082-06

DOI : 10. 19860/j.cnki.issn1005-8249.2024.01.015

 

 

REN Ruiqi , ZHANG Xuhui , LI Zhenjie , CHEN Shisheng , WANG Jianpan

( Shanxi Metallurgical Geotechnical Engineering Investigation Co. ，Ltd , Taiyuan 030002 China)

Abstract: By surveying the main building of a comprehensive office building in a certain area to obtain detailed soil layer indicators, using soil nail resistance parameters to calculate and select the optimal soil nail wall material, and designing a deep foundation pit composite soil nail wall support scheme and construction process. Input the designed construction plan into FLAC3D software to simulate the deep foundation pit support structure and the lateral pressure coefficient under different geological influences. Experimental verification: When the soil nail parameters are 5 rows and the steel pipe embedding depth parameter is 2 meters, the support structure can minimize the horizontal displacement and settlement of the deep foundation pit to the greatest extent; When the lateral pressure coefficient is large, it can maintain a lower vertical displacement and deep foundation pit bottom uplift value, which has a good support effect.

Keywords: geological influence; deep foundation pit; composite soil nailing wall; supporting parameters; horizontal displacement; 

?基金項目： 山西省煤基重點科技攻關項目  ( MJ2021-08) 。

作者簡介： 任睿祺  (1991 —) , 男 ，本科 ，工程師 ，主要研究方向： 巖土工程勘察及應用技術。 通信作者： 李振杰  (1988—) , 男 ，本科 ，工程師 ，主要研究方向： 地基處理 、建筑工程檢測。 

收稿日期： 2023-03-27