本文選題：地裂縫 + 土壤含水率　； 參考：《生態(tài)與農(nóng)村環(huán)境學報》2016年02期

【摘要】：為研究礦區(qū)地裂縫對土壤水分及地表剪切強度的影響規(guī)律,針對井工煤礦采煤產(chǎn)生的沉陷裂縫,通過野外現(xiàn)場試驗,對垂直裂縫方向上的土壤含水率和地表剪切強度進行測定并進行相關(guān)性分析。結(jié)果表明,在沿垂直裂縫的方向上土壤含水率與測點距裂縫的距離之間呈一定的正相關(guān)關(guān)系,相關(guān)性未達顯著水平(P0.05),初步得到土壤平均含水率隨距地裂縫距離的增加而增大,地裂縫的出現(xiàn)一定程度上降低了裂縫及其周邊土體含水率;地表剪切強度與距地裂縫距離之間呈一定的正相關(guān)關(guān)系,相關(guān)性未達顯著水平(P0.05),初步得到地裂縫對周圍土體結(jié)構(gòu)產(chǎn)生一定影響,即距地裂縫越近,剪切強度越低,地裂縫的出現(xiàn)降低了地裂縫及其周邊土體的剪切強度。
[Abstract]:In order to study the influence of ground fissures on soil moisture and surface shear strength in mining area, a field test was carried out to study the subsidence fractures produced by coal mining in well workings. The soil moisture content and the surface shear strength in the vertical fracture direction were measured and the correlation analysis was carried out. The results showed that there was a positive correlation between soil moisture content and the distance between the measured point and the crack along the vertical fracture direction, and the correlation was not significant (P 0.05). The preliminary results showed that the average soil moisture content increased with the increase of the distance from the ground fissure. The occurrence of ground fissures reduces the moisture content of the fracture and its surrounding soil to a certain extent, and there is a positive correlation between the surface shear strength and the distance from the ground fracture. The correlation is not significant (P0.05), and it is found that ground fissures have a certain influence on the surrounding soil structure, that is, the closer to the ground fissures, the lower the shear strength, and the occurrence of the ground fissures reduces the shear strength of the ground fissures and the surrounding soil mass.
【作者單位】： 中國礦業(yè)大學環(huán)境與測繪學院;
【基金】：國家科技基礎(chǔ)性工作專項(2014FY110800) 國家自然科學基金重點項目(U1361214) 國家重點基礎(chǔ)研究發(fā)展計劃(2013CB227904)
【分類號】：S157
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本文編號：1935231