内陆干旱区平原水库防蒸发浮板研发与节水试验研究

发布时间：2018-03-10 04:36

本文选题：干旱区　切入点：平原水库　出处：《新疆农业大学》2014年硕士论文　论文类型：学位论文

【摘要】：干旱区平原水库的利用率一般在45%左右，例如在新疆，平原水库每年损失的水量约34.1×108m3，如果通过防渗与防蒸发措施，，把这部分水节约下来，将会产生巨大的经济效益和社会效益。本课题针对内陆干旱区平原水库水面无效蒸发损失量大的问题，寻找和研发了耐久彩钢夹芯板、苯板复合隔墙板、加筋复合浮板以及碳纤维加固复合浮板等材料，通过使其漂浮于水面之上的工程措施来防止或减少库区水面蒸发损失，从而大大地节省水量。研究结果表明: （1）彩钢夹芯板质轻，不亲水，且耐酸碱性强。可抵御6级及6级以下风力的破坏，在遇6级以上风力时，浮板出现弯折破坏，且由于密度小容易被风浪刮离水面。长期试验发现面层镀锌钢板大面积与内层夹芯苯板脱落，导致材料失败。（2）苯板复合隔墙板密度适中，面层为混凝土结构，且内有钢筋网、抗碱玻纤布加筋，内层为轻质苯板。这种材料结够使其既有混凝土强度高、耐酸碱腐蚀、抗渗的特性，又能达到如苯板质轻漂浮于水面之上的目的。在8级风力时仍能保持结构完整，表面无明显破坏。其作为防蒸发材料效果较理想。（3）加筋复合浮板以土工格栅作为加筋材料，用EPS颗粒取代混凝土的粗集料和细集料，以普通硅酸盐水泥为胶凝材料并加入适量的粉煤灰，面层涂刷高强灌浆料制成。室内试验测试其性能良好，在水库现场试验发现，浮板与浮板之间撞击和与岸坡大坝混凝土面板磨损破坏严重，遇5级风力时即破坏。（4）碳纤维加固复合浮板为加筋复合浮板的改进材料，采用对浮板面层包裹密封碳纤维布的方式进行补强。大量现场试验表明补强效果明显，能够抵御8级以上风力的破坏。其作为防蒸发材料效果较理想。
[Abstract]:The utilization ratio of plain reservoirs in arid areas is generally around 45%. For example, in Xinjiang, the annual water loss of plain reservoirs is about 34.1 脳 108m3.If this part of water is saved through anti-seepage and anti-evaporation measures, This subject aims at the problem of large amount of invalid evaporation loss of water surface of plain reservoir in inland arid area, seeks and develops the durable color steel sandwich board and the compound partition board of benzene plate. The reinforced composite floating slab and carbon fiber reinforced composite floating slab are used to prevent or reduce the evaporation loss of the reservoir water surface through the engineering measures to make them float on the water surface. The research results show that:. Color steel sandwich panel is light weight, not hydrophilic, strong acid and alkaline resistance. It can resist the damage of wind force of grade 6 and below. When the wind force is above grade 6, the floatation board appears bending failure, Because the density is small, it is easy to be blown off the water surface by the wind wave. The long-term experiment found that the large area and inner core benzene plate of the surface layer galvanized steel sheet fell off, which resulted in the material failure. (2) the composite partition plate of benzene plate has a moderate density, a concrete structure with a reinforcement net inside, a alkali resistant glass fiber cloth reinforced, and a light benzene plate inside. This material is sufficient to make it have the properties of high strength of concrete, resistance to acid and alkali corrosion, and impermeability. It can also achieve the goal of light floating on the water surface of benzene plate. It can still keep the structure intact and no obvious damage to the surface under the wind force of grade 8. The effect of this material as a material for preventing evaporation is ideal. (3) reinforced composite floating slab uses geogrid as reinforced material, EPS particle replaces coarse aggregate and fine aggregate of concrete, ordinary Portland cement is used as cement material and proper amount of fly ash is added. The surface layer is made of high strength grouting material and its performance is good in laboratory test. In the field test of reservoir, it is found that the impact between floating slab and floating slab and the wear and tear of concrete face with bank slope dam are serious, and when the wind force is 5 grade, it will be destroyed. 4) carbon fiber reinforced composite floatation slab is an improved material for reinforced composite floatation board, which is reinforced by sealing carbon fiber cloth wrapped in floating slab layer. A large number of field tests show that the reinforcement effect is obvious. It can resist the damage of wind force above 8. The effect is ideal as evaporative material.
【学位授予单位】：新疆农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV697

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