發(fā)布時(shí)間：2018-04-20 04:41

  本文選題：尾礦庫(kù) + 上游式　； 參考：《金屬礦山》2017年05期

【摘要】：以尹莊尾礦庫(kù)為工程背景,通過(guò)現(xiàn)場(chǎng)沉積灘面及鉆孔取樣進(jìn)行室內(nèi)篩分試驗(yàn)、滲透試驗(yàn),獲得了上游式尾礦顆粒在庫(kù)內(nèi)沉積規(guī)律,建立了尾礦庫(kù)概化地質(zhì)模型,并通過(guò)三軸試驗(yàn)得到了概化模型中不同地層尾礦的應(yīng)力應(yīng)變關(guān)系;以測(cè)定的飽和含水量、殘余含水量及飽和滲透系數(shù)及各尾礦顆粒級(jí)配曲線(xiàn)為基礎(chǔ),利用Fredlund-Xing模型獲得了土-水特征曲線(xiàn)及滲流模型;以有效應(yīng)力理論為依據(jù),建立上游式尾礦庫(kù)流-固耦合數(shù)學(xué)模型,對(duì)該庫(kù)的應(yīng)力場(chǎng)與滲流場(chǎng)進(jìn)行分析,獲得了壩體的應(yīng)力場(chǎng)及孔隙壓力的分布規(guī)律。研究成果可為尾礦庫(kù)的設(shè)計(jì)、施工和安全生產(chǎn)提供技術(shù)支撐。
[Abstract]:Taking Yinzhuang tailing reservoir as engineering background, laboratory screening test and permeation test were carried out on the ground sediment beach surface and borehole sampling, and the deposition law of upstream tailings particles in the reservoir was obtained, and a geological model of tailings reservoir generalization was established. The stress-strain relationship of tailings in different strata in the generalized model is obtained by triaxial test, based on the measured saturated water content, residual water content, saturated permeability coefficient and gradation curve of each tailings. The soil-water characteristic curve and seepage model are obtained by using Fredlund-Xing model, the fluid-solid coupling mathematical model of upstream tailings reservoir is established based on the effective stress theory, and the stress field and seepage field of the reservoir are analyzed. The stress field and pore pressure distribution of the dam are obtained. The research results can provide technical support for the design, construction and safety production of tailings reservoir.
【作者單位】： 廊坊師范學(xué)院;河北工程大學(xué);中國(guó)石油天然氣管道工程有限公司;
【基金】：國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(編號(hào):51034001)
【分類(lèi)號(hào)】：TD926.4
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本文編號(hào)：1776318