<p style="text-align: justify;"><strong>项目名称:</strong>国内某基坑开挖项目——基坑开挖对电塔的影响分析</p><p style="text-align: justify;"><strong>使用软件:</strong>OptumG2</p><p style="text-align: justify;"><strong>项目模型</strong></p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908111745562.png" alt="blob.png"/></strong></p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908145765344.png" alt="blob.png"/></p><blockquote><p style="text-align: justify;">注:图中红线为用于方便读取相应位置结果数据的结果截面,对计算没有影响。</p></blockquote><p style="text-align: justify;"><strong>岩土参数</strong></p><p style="text-align: justify;">在本次OptumG2计算中,岩土材料采用HMC材料模型来模拟,以考虑土体加载和卸载时不同的弹性变形规律。</p><table align="center" width="659"><tbody><tr class="firstRow"><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="51">编号<br/></td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">名称</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63"><p>重度</p><p>kN/m<sup>3</sup></p></td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82"><p>弹性模量</p><p>MPa</p></td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82"><p>回弹模量</p><p>MPa</p></td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">泊松比</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67"><p>粘聚力</p><p>kPa</p></td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83"><p>内摩擦角</p><p>°</p></td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="51">1</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">杂填土</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63">15.4</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">20</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">60</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">0.25</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">5</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83">12</td></tr><tr><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="51">2</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">可塑-硬塑状粉质黏土</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63">15.3</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">40</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">120</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">0.25</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">23</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83">16</td></tr><tr><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="51">3</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">稍密-中密状圆砾</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63">16</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">80</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">240</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">0.25</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">2</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83">33</td></tr><tr><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="51">4</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">强风化泥质粉砂岩</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63">21.5</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">2500</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">7500</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">0.3</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">23</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83">15</td></tr><tr><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="51">5</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="163">中等风化泥质粉砂岩</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="63">22</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">3600</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="82">10000</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">0.3</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="67">35</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="83">20</td></tr></tbody></table><p style="text-align: center;"><br/></p><p style="text-align: justify;"><strong>边界条件</strong></p><p style="text-align: justify;">边界条件选用OptumG2默认标准边界条件,即模型左右边界限制x方向(水平方向)的位移,模型底边界同时限制x方向和z方向的位移。该边界条件也是有限元平面应变分析中最常用的边界条件。</p><p style="text-align: justify;"><strong>结果</strong></p><p style="text-align: justify;"><strong>(</strong><strong>1</strong><strong>)初始地应力</strong></p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908449186097.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>2</strong><strong>)地下连续墙施工</strong></p><p style="text-align: justify;">施工地下连续墙模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908466379775.png" alt="blob.png"/></p><p style="text-align: justify;">施工地下连续墙后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908525127172.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为0.07mm,最大差异沉降约为0.054mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908546410920.png" alt="blob.png"/></p><p style="text-align: justify;">施工地下连续墙后电塔基础沉降云图:</p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908555212015.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>3</strong><strong>)开挖至</strong><strong>2.5m</strong></p><p style="text-align: justify;">基坑开挖2.5m的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908568773811.png" alt="blob.png"/></p><p style="text-align: justify;">基坑开挖2.5m后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908582803461.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为0.08mm,最大差异沉降约为0.054mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908594495160.png" alt="blob.png"/></p><p style="text-align: justify;">开挖2.5m后电塔基础沉降云图:</p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908613858434.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>4</strong><strong>)添加第一道支撑</strong></p><p style="text-align: justify;">添加第一道支撑模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908623983338.png" alt="blob.png"/></p><p style="text-align: justify;">添加第一道支撑后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908640165824.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为0.11mm,最大差异沉降约为0.052mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908650592401.png" alt="blob.png"/></p><p><span style="text-align: justify;">添加第一道支撑后电塔基础沉降云图:</span></p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908662289948.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>5</strong><strong>)开挖至</strong><strong>8.6m</strong></p><p style="text-align: justify;">开挖至8.6m的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908676210258.png" alt="blob.png"/></p><p><span style="text-align: justify;">开挖至8.6m后整体的位移云图:</span></p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908692238482.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为2.28mm,最大差异沉降约为1.71mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908704709456.png" alt="blob.png"/></p><p><span style="text-align: justify;">开挖至8.6m后电塔基础沉降云图:</span></p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908723591932.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>6</strong><strong>)添加第二道支撑</strong></p><p style="text-align: justify;">添加第二道支撑的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908737487206.png" alt="blob.png"/></p><p style="text-align: justify;">添加第二道支撑后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908770524469.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为2.03mm,最大差异沉降约为1.9mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908782363476.png" alt="blob.png"/></p><p><span style="text-align: justify;">添加第二道支撑后电塔基础沉降云图:</span></p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908797694009.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>7</strong><strong>)开挖至</strong><strong>13.6m</strong></p><p style="text-align: justify;">开挖至13.6m的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908807969586.png" alt="blob.png"/></p><p><span style="text-align: justify;">开挖至13.6m后整体的位移云图:</span></p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908823596535.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为3.49mm,最大差异沉降约为2.25mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908833404845.png" alt="blob.png"/></p><p style="text-align: justify;">开挖至13.6m后电塔基础沉降云图:</p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908845113094.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>8</strong><strong>)添加第三道支撑</strong></p><p style="text-align: justify;">添加第三道支撑的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908859778877.png" alt="blob.png"/></p><p style="text-align: justify;">添加第三道模型图后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908873449702.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为3.54mm,最大差异沉降约为2.27mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513908882487519.png" alt="blob.png"/></p><p style="text-align: justify;">添加第三道支撑后电塔基础沉降云图:</p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513909240192714.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>(</strong><strong>9</strong><strong>)完全开挖</strong></p><p style="text-align: justify;">完全开挖的模型图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513909274630578.png" alt="blob.png"/></p><p style="text-align: justify;">完全开挖后整体的位移云图:</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513909288890949.png" alt="blob.png"/></p><p style="text-align: justify;">电塔基础底部的沉降情况如下图所示,有计算结果和下图可以得到,施工地下连续墙,基础最大沉降为9.8mm,最大差异沉降约为2.45mm。</p><p style="text-align: center;"><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513909324704692.png" alt="blob.png"/></p><p style="text-align: justify;">完全开挖后电塔基础沉降云图:</p><p style="text-align: center;"><strong><img src="
https://wen.kulunsoft.com/uplo ... ot%3B title="1513909341434325.png" alt="blob.png"/></strong></p><p style="text-align: justify;"><strong>总结</strong></p><p style="text-align: justify;">总结开挖过程中基础的最大沉降和最大差异沉降值,如下表所示:</p><table align="center" width="659"><tbody><tr class="firstRow"><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">施工步骤<br/></td><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="154">施工名称</td><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="184">基础最大沉降,mm</td><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="222">基础最大差异沉降,mm</td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">0</td><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="154">(初始地应力)</td><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="184">/</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">/</td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">1</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">施工地下连续墙</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">0.07</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">0.054</td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">2</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">开挖至 2.5m</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">0.08</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">0.054</td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">3</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">添加第一道支撑</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">0.11</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">0.052</td></tr><tr><td valign="middle" colspan="1" rowspan="1" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">4</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">开挖至 8.6m</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">2.03</td><td valign="middle" colspan="1" rowspan="1" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">1.71</td></tr><tr><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">5</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">添加第二道支撑</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">2.03</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">1.9</td></tr><tr><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">6</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">开挖至 13.6m</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">3.49</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">2.25</td></tr><tr><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">7</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">添加第三道支撑</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">3.54</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">2.27</td></tr><tr><td valign="middle" style="word-break: break-all; border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127);" align="center" width="98">8</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="154">完全开挖</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="184">9.8</td><td valign="middle" style="border-width: 1px; border-style: solid; border-color: rgb(127, 127, 127); word-break: break-all;" align="center" width="222">2.45</td></tr></tbody></table><p style="text-align: center;"><br/></p><p style="text-align: justify;">从上表可以得出,基础沉降大小和差异沉降均在允许范围内。</p>