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          強夯工程施工后如何處理?

          網址:http://www.xuanhuataobao.com/   發布日期:2022-05-09 關注次數:
          強夯工程施工處理是在路基上進行必要的作業:機器和工具用來固定夯實地基。在路基中摻加灰土,分層碾壓,可提高路基的強度和平整度。此外,路基高度應符合相關標準。
          The construction treatment of dynamic compaction project is to carry out necessary operations on the subgrade: machines and tools are used to fix and tamp the foundation. Adding lime soil into the subgrade and rolling in layers can improve the strength and flatness of the subgrade. In addition, the subgrade height shall comply with relevant standards.
          一、驗證強夯法的可靠性
          1、 Verify the reliability of dynamic compaction method
          強夯后加固效果的檢測是檢驗施工成敗的重要依據。強夯后應進行質量檢查,檢查加固效果是否符合設計要求,并進一步分析所采用的施工參數是否合理。目前,我國采用的試驗方法有三種:靜力觸探試驗、標準貫入試驗和載荷板試驗。
          The detection of reinforcement effect after dynamic compaction is an important basis to test the success or failure of construction. After dynamic compaction, quality inspection shall be carried out to check whether the reinforcement effect meets the design requirements, and further analyze whether the adopted construction parameters are reasonable. At present, there are three test methods used in China: static cone penetration test, standard penetration test and load plate test.
          靜力觸探試驗采用錐頭傳感器反映地層變化。該方法具有準確、簡便、快速、曲線連續等優點。強夯后,地層強度的變化規律得到了反映。
          Cone head sensor is used to reflect the formation change in static cone penetration test. The method has the advantages of accuracy, simplicity, rapidity and continuous curve. After dynamic compaction, the variation law of formation strength is reflected.
          標準貫入法是巖土工程中廣泛應用的一種試驗技術。屬于動力觸探,一般與鉆井相結合。錘式能*肥料貫入儀的探桿被壓入土壤中,根據貫入的困難程度很容易判斷土壤的性質。
          Standard penetration method is a test technology widely used in geotechnical engineering. It belongs to dynamic penetration, which is generally combined with drilling. The probe rod of the hammer energy * fertilizer penetrometer is pressed into the soil, and it is easy to judge the nature of the soil according to the difficulty of penetration.
          基礎荷載板向承重板上的地基土施加荷載,荷載通過承載板傳遞給基礎。測量了地基土在自然條件下的變形特性,評價地基承載力。試驗結果可為確定加筋地基承載力提供重要依據。
          The foundation load plate applies load to the foundation soil on the bearing plate, and the load is transmitted to the foundation through the bearing plate. The deformation characteristics of foundation soil under natural conditions are measured and the bearing capacity of foundation is evaluated. The test results can provide an important basis for determining the bearing capacity of reinforced foundation.
          采用強夯法處理軟土路基后,地基條件得到了較好,效果明顯。處理后的地基滿足設計要求,降低工程造價。強夯法處理軟土路基的施工質量至關重要。雖然強夯法效果明顯,但在強夯工程過程中會出現一些大小問題。因此,今后將該方法用于軟土路基處理時,應嚴格控制施工過程,只有掌握施工中的各個環節,才能使該方案產生較好的經濟效益和社會效益。
          After the soft soil subgrade is treated by dynamic compaction method, the foundation conditions are better and the effect is obvious. The treated foundation meets the design requirements and reduces the project cost. The construction quality of soft soil subgrade treated by dynamic compaction method is very important. Although the effect of dynamic compaction method is obvious, there will be some size problems in the process of Dynamic Compaction Engineering. Therefore, when this method is applied to the treatment of soft soil subgrade in the future, the construction process should be strictly controlled. Only by mastering all links in the construction can the scheme produce better economic and social benefits.
          二、強夯工程機械的比較
          2、 Comparison of dynamic compaction construction machinery
          強夯機械是強夯工程的基礎。選擇好的施工設備具有雙重效果,強夯工程工作量減半。
          Dynamic compaction machinery is the foundation of Dynamic Compaction Engineering. The selected construction equipment has dual effects, and the workload of dynamic compaction project is reduced by half.
          1、 國外工程機械
          1. Foreign construction machinery
          歐洲大多數發達國家使用大噸位履帶起重機提升夯錘。這種機械具有穩定性好、行走方便等優點。我國鄰國日本采用輪胎起重機進行強夯施工,效果良好。
          Most developed countries in Europe use large tonnage crawler cranes to lift rammers. This kind of machine has the advantages of good stability and convenient walking. China's neighbor Japan adopts tire crane for dynamic compaction construction, and the effect is good.
          2、 國產工程機械
          2. Domestic construction machinery
          在中國大多數強夯工程中,僅使用小噸位起重機,僅使用滑輪組提升夯錘,并使用自動解耦裝置使夯錘自由下落。自動解耦裝置應具有足夠的強度,施工時應靈活。為了防止落錘時起重機框架發生傾覆,應采取相應的防護措施。
          In most dynamic compaction projects in China, only small tonnage cranes are used, only pulley blocks are used to lift the rammer, and automatic decoupling devices are used to make the rammer fall freely. The automatic decoupling device shall have sufficient strength and be flexible during construction. In order to prevent the crane frame from overturning when the hammer falls, corresponding protective measures shall be taken.
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