發(fā)布時間：2018-09-04 11:59

【摘要】：對于水利工程質(zhì)量而言,為地基做加固處理至關重要,對控制工程造價以及工程安全都有直接影響。因此,為使西昌市水利工程施工中軟土地基的穩(wěn)定性得到有效加強,文中提出在軟土地基中應用水泥攪拌樁技術。首先,以水泥攪拌樁加固軟土的原理為基礎,設計將復合地基應用到水利工程軟土地基中,并計算地基受力情況,通過基礎理論樁長、樁體模量以及置換率等因素分析水泥攪拌樁復合地基承載情況,從而獲得上述因素對復合地基的影響情況;其次,基于復合地基設計基礎,從土中選擇某一時間點的變形條件,研究關于軟土地基的應力變化關系,利用軟粘土一維壓縮曲線創(chuàng)建出土內(nèi)一點任意時間有效應力豎向變化關系式,再運用按照應力定義和變形定義的固結度關系完成土體分析,以此關系獲取設計方案最終沉降標準值。仿真實驗證明,通過文中設計方法能夠有效地增強水利工程中軟土地基的穩(wěn)定性。
[Abstract]:For the quality of water conservancy engineering, it is very important to strengthen the foundation, which has a direct effect on the control of project cost and the safety of the project. Therefore, in order to effectively strengthen the stability of soft soil foundation in the construction of Xichang water conservancy project, this paper puts forward the application of cement mixing pile technology in soft soil foundation. First of all, based on the principle of cement mixing pile strengthening soft soil, the composite foundation is designed and applied to the soft soil foundation of water conservancy project, and the stress of the foundation is calculated, and the pile length is calculated by the basic theory. The bearing capacity of cement mixing pile composite foundation is analyzed by analyzing the pile modulus and replacement ratio, and the influence of the above factors on the composite foundation is obtained. Secondly, based on the design foundation of composite foundation, the deformation conditions at a certain time point are selected from the soil. In this paper, the stress variation relation of soft soil foundation is studied, and the vertical relationship of effective stress at any time in the unearthed soil is created by using the one-dimensional compression curve of soft clay, and then the soil is analyzed according to the consolidation degree relation defined by stress definition and deformation definition. The standard value of the final settlement of the design scheme is obtained by this relation. The simulation results show that the design method can effectively enhance the stability of soft soil foundation in hydraulic engineering.
【作者單位】： 西昌學院工程技術學院;
【分類號】：TV551.4

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本文編號：2222039