| 柔壁渗透仪的试验研究 |
| 投稿时间：2008-05-04 点此下载全文 |
| 引用本文：靖向党,于波,谢俊革.柔壁渗透仪的试验研究[J].钻探工程,2008,35(9):28-31.JING Xiang-dang,YU Bo,XIE Jun-ge. Test Research of Permeameter with Flexible Wall[J]. Drilling Engineering, 2008,35(9):28-31. |
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| 基金项目:建设部计划项目(编号2007-K8-14) |
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| 中文摘要:针对防渗浆材结石体或灌浆固结体渗透性的测试及其对污染物阻滞性能测试的需要，研制了一种围压密封的柔壁渗透仪，并获得国家专利。采用S、N和Z型三类浆材结石体试样，通过在不同渗透压力、不同围压条件下的渗透系数测定，与南-55型变水头渗透仪的对比试验研究，以及垃圾渗沥液的渗滤试验，证明柔壁渗透仪对制样要求不高、密封好、测试误差＜119×10-7 cm/s，精度满足规范要求。该研究的创新点在于采用柔性乳胶膜作测试试样的侧壁，通过气压或水压施加围压实现试样的侧壁密封，渗透压力可在10～1000 kPa范围调节，围压可在10～1500 kPa范围调节，试样直径有618和101 mm两种规格可选,且精度要求不高，试样高度在20～150 mm范围内任意选用，可方便地用于测试浆材结石体或灌浆固结体的渗透系数，以及浆材结石体对污水中污染物的阻滞性能，有助于防渗浆材的研制。 |
| 中文关键词:柔壁渗透仪 浆材 渗透性 阻滞性 |
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| Test Research of Permeameter with Flexible Wall |
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| Abstract:Based on the needs of permeability test of slurry concretion body and grouting concretion body and their block performance test to the pollutants, one kind of permeameter with flexible wall was developed which is air-proofed by all round pressure, and got the patent in China. Permeability coefficient tests were made on S, N and Z three slurry concretion body samples in different seepage pressure and different all-round pressure, the results of permeameter with flexible wall and NAN-55 permeameter were compared, and landfill leachate filtration test was also conducted. These tests proved that the permeameter with flexible wall has little requirement for slurry concretion body samples with good airproof, the error was less than 119×10-7 cm/s and the precision could be conformed to the standard. This article has selected flexible latex film for wall around the sample and made the sample air-proofed by air pressure or water pressure. Adjusting range of seepage pressure was 10-1000 kPa, all-round pressure was 10-1500 kPa. The diameter of sample could be 618 mm or 101 mm, and the length between 20-150 mm, it was convenient to test permeability coefficient of slurry concretion body, grouting concretion body, and block performance of the body to the pollutant in sewage, and helpful to develop anti-seepage slurry. |
| keywords:permeameter with flexible wall slurry permeability block performance |
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