
無側限壓縮試驗;無圍壓縮試驗
The tests include compaction test, unconfined compression test, dynamic strength and dynamic strain test and so on.
包括擊實試驗、無側限強度試驗、動應變和動強度試驗等。
In order to study the fiber, fiber cement on the strength of Yunnan red clay, red clay of the improved direct shear tests carried out and the unconfined compression test.
為了研究纖維、纖維水泥對雲南紅粘土強度的影響,對改良後的紅粘土進行了直剪試驗和無側限抗壓試驗。
The shearing properties of asphalt mixture in wearing layer of a testing section of Gangzhou-Wuzhou Expressway are evaluated by the single penetration test and unconfined compression test.
為了評價不同級配類型瀝青混合料的抗剪性能,采用單軸貫入法對混合料進行抗剪試驗。
Based on discussion of its mechanism, the unconfined compression strength test is discussed and compared with ordinary cement-stabilized soil.
從水泥土固化機理出發,讨論并對比了摻加工業廢料加固土與普通水泥土的無側限抗壓強度試驗。
In this paper, according to the require of deep mining, the unconfined uniaxial compression strength test of backfill at a different ratio, different density and different curing age has been done.
根據礦山深井開采的需要,對不同灰砂配比、重量濃度和養護時間的高濃度水泥尾砂充填體試塊在建材壓力機上進行了無側限單軸壓縮強度測試。
Based on the previous research, in this paper the mechanical characteristics of undisturbed and remoulded sample was presented by unconfined compression and consolidation test results.
在前期研究工作的基礎上通過無側限抗壓試驗和大量的室内固結試驗,得到了原狀土和重塑土的力學性質變化規律;
This paper introduces the results of unconfined compression test, direct shear test and unconsolidated undrained triaxial test for saturated clay at a site in shanghai.
本文介紹了上海菜工程地基飽和粘土的無側限試驗、直剪試驗及三軸不固結不排水試驗的結果。
This model contains 9 parameters which can be easily determined by conventional both confined and unconfined compression test.
模型的計算參數共有9個,可以方便地通過原狀土的有側限和無側限壓縮試驗測定。
Then a strength equation related with the electrical resistivity of soil-cement was obtained by analyzing the results of unconfined compression strength test.
結果表明,水泥土和孔隙水電阻率隨溶液濃度增大而減小,隨齡期的增大而增大;
Through the unconfined compression test and triaxial rigidity test without drain, the authors stu***d the properties and influence of different formula for the clay-cement grout.
通過對不同配比的粘土-水泥漿液結石體的室内無側限抗壓強度試驗以及三軸固結不排水試驗,揭示了各因素對粘土-水泥漿液結石體性質的影響。
無側限壓縮試驗(Unconfined Compression Test)是土力學中用于測定黏性土抗壓強度的一種基礎實驗方法。該試驗通過向圓柱形土樣施加軸向荷載,在無側向約束條件下,測量土樣在單軸壓力作用下的變形與破壞特性。其核心原理基于土體在無側限狀态下的應力-應變關系,試驗結果可直接得出無側限抗壓強度($q_u$),計算公式為:
$$
qu = frac{P{max}}{A}
$$
其中$P_{max}$為最大軸向荷載,$A$為土樣初始橫截面積。
該試驗主要應用于黏性土分類、地基承載力評估及邊坡穩定性分析。例如,在土木工程中,工程師可通過該試驗快速判斷軟黏土是否適用于路基填築。試驗需使用标準制樣設備制備高徑比為2:1的土樣,并通過應變控制式加載裝置以1%/分鐘的速率加壓,直至土樣發生剪切破壞。
權威機構如ASTM International在标準D2166中規範了試驗流程,強調需記錄應力峰值與殘餘強度值,并建議結合含水量數據綜合分析。美國國家交通部的研究指出,該試驗對飽和度>95%的土樣最具可靠性,而對含砂量較高的土壤需配合三軸試驗驗證。
來源說明:
Unconfined Compression Test(無側限壓縮試驗) 是岩土工程中用于測定材料在無側向約束條件下抗壓強度的試驗方法。以下是詳細解釋:
該試驗通過向圓柱形試樣施加軸向壓力直至破壞,測定其無側限抗壓強度(Unconfined Compressive Strength),即材料在無側向限制時的最大承載能力。適用于黏土、軟岩等具有一定内聚力的材料。
常用設備包括無圍壓縮試驗儀(Unconfined Compression Apparatus),部分系統需配合專用傳感器和軟件(如GCTS無線點載荷測試系統)。試驗需遵循ASTM D2166等國際标準。
如需更完整信息,可參考工程試驗手冊或專業學術文獻。
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