【正文】 orting, cementsoil retaining structure, steel sheet pile, bored piles, artificial dighole pile, underground continuous wall and soil nailing support, etc. This paper uses the row pile supporting and soil nailing wall to design the 11 profile and 44 profile, checking for the soil nailing support and row pile supporting according to the standard in 《 Foundation Pit construction order》（ JGJ12099） and other texts . In the design process, I bines theory and engineering example and the software of Lizheng deep foundation pit to analyze the design parameters , then checking. I mainly do the internal stability checking and external stability checking for soil nailing support structure ,external stability checking include antisliding stability checking and resistive overturning stability checking. The main checking measures for row pile supporting structure is the overall stability checking, resistive overturning stability checking and resistance to uplift stability checking. Finally, the advantages and disadvantages of two kinds of supporting are pared by the stability factors. Keywords： deep foundation, soil nail, row pile, stability 2 第一章 前言 近年來全國各地高層建筑深基坑支護工程發(fā)展很快，因建設需要基礎愈做愈深，其支護結構難度，尤以軟土地區(qū)也愈來愈大，已經(jīng)成為高層建筑工程中的難點和熱點?；又ёo為保證地下結構施工及基坑周邊環(huán)境的安全，對基坑側壁及周邊環(huán)境采用的支擋、加固與保護措施。.......................................................... 1 英文摘要 ......................................... 錯誤！未定義書簽。 第一章 前言 ....................................................... 3 第二章 巖土工程勘察 ............................................... 4 ..................................................... 4 ..................................................... 4 ......................................... 4 ................................................. 4 地基（巖）土構成與巖性特征 .............................. 4 ....................................... 5 ............................................. 5 ....................................... 5 ......................................... 5 基設計參數(shù) ......................................... 5 ............................................. 6 ................................................... 6 第三章 深基坑支護簡介 ............................................. 8 ............................................... 8 、發(fā)展 ..................................... 8 ..................................... 8 ............................................... 9 、發(fā)展、特點 ......................................... 9 、設計步驟、參考原則 .................. 10 ...................................... 13 ................................................ 19 ............................................ 19 ........................................ 19 第四章 AA′剖面和 EE′剖面設計計算書 .......................... 27 AA′剖面的土釘支護設計計算書 .............................. 27 AA′剖面的土釘墻設計計算步驟 .......................... 27 工程概況 ............................................... 27 ................................................ 28 土釘 AA′剖面排樁支護設計計算書 ................................ 32 ................................................ 32 ................................................ 33 土壓力的確定 ........................................... 33 嵌固深度計算 ........................................... 35 .............................................. 37 樁截面設計 ............................................. 39 EE′剖面的土釘支護設計計算書 .............................. 41 ................................................ 41 ................................................ 41 EE′剖面的排樁支護設計計算書 .............................. 45 工程概況 ............................................... 45 地質條件 ............................................... 46 土壓力的確定 ........................................... 46 嵌固深度計算 ........................................... 47 定性驗算 .............................................. 49 樁截面設計 ............................................. 51 .......................................... 52 結論 ............................................................. 55 致謝 .............................................................