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A platform for research: civil engineering, architecture and urbanism
Blind ditch exhaust optimization method for reservoir geomembrane seepage prevention
The invention discloses a blind ditch exhaust optimization method for seepage prevention of a geomembrane of a reservoir, which comprises the following steps: firstly, laying a blind ditch exhaust system which comprises a chessboard type blind ditch positioned below the geomembrane at the bottom of the reservoir and a plurality of soil body units divided by the blind ditch; when the blind ditch exhaust system is used for exhausting, the air resistance balance is considered, even in the process of exhausting air from a soil body unit to the blind ditch and the process of exhausting air from the blind ditch to the atmosphere, the air weight and the exhaust time are the same, and the air pressure under the geomembrane is smaller than or equal to the air pressure critical value. According to the invention, the discharge smoothness of gas under the geomembrane is ensured, the gas resistance under the geomembrane is reduced, the gas pressure under the geomembrane is further reduced, the gas pressure under the geomembrane is ensured not to exceed a critical value, and the problem that the gas under the geomembrane is inflated due to the rising of the underground water level of the reservoir at present is solved. And the problem of difficult exhaust caused by overlong exhaust path in the horizontal direction of the plain reservoir is solved.
本发明公开了一种用于水库土工膜防渗的盲沟排气优化方法，首先铺设盲沟排气系统，该盲沟排气系统包括位于水库库底的土工膜下方的棋盘式盲沟，以及由盲沟分割成的多个土体单元。本发明通过盲沟排气系统进行排气时，考虑到气阻平衡性，即使气体由土体单元向盲沟的排气过程1与气体通过盲沟向大气的排气过程2中的气体重量相同，排气时间相同，且土工膜下气压≦气压临界值。本发明不仅保证了土工膜下气体排出的流畅性，减小了土工膜下气阻，进而减小了土工膜下气体压力，还保证土工膜下气压不超过临界值，解决了目前水库地下水位上升导致土工膜下气胀，以及平原水库水平方向排气路径过长导致排气困难的问题。
Blind ditch exhaust optimization method for reservoir geomembrane seepage prevention
The invention discloses a blind ditch exhaust optimization method for seepage prevention of a geomembrane of a reservoir, which comprises the following steps: firstly, laying a blind ditch exhaust system which comprises a chessboard type blind ditch positioned below the geomembrane at the bottom of the reservoir and a plurality of soil body units divided by the blind ditch; when the blind ditch exhaust system is used for exhausting, the air resistance balance is considered, even in the process of exhausting air from a soil body unit to the blind ditch and the process of exhausting air from the blind ditch to the atmosphere, the air weight and the exhaust time are the same, and the air pressure under the geomembrane is smaller than or equal to the air pressure critical value. According to the invention, the discharge smoothness of gas under the geomembrane is ensured, the gas resistance under the geomembrane is reduced, the gas pressure under the geomembrane is further reduced, the gas pressure under the geomembrane is ensured not to exceed a critical value, and the problem that the gas under the geomembrane is inflated due to the rising of the underground water level of the reservoir at present is solved. And the problem of difficult exhaust caused by overlong exhaust path in the horizontal direction of the plain reservoir is solved.
本发明公开了一种用于水库土工膜防渗的盲沟排气优化方法，首先铺设盲沟排气系统，该盲沟排气系统包括位于水库库底的土工膜下方的棋盘式盲沟，以及由盲沟分割成的多个土体单元。本发明通过盲沟排气系统进行排气时，考虑到气阻平衡性，即使气体由土体单元向盲沟的排气过程1与气体通过盲沟向大气的排气过程2中的气体重量相同，排气时间相同，且土工膜下气压≦气压临界值。本发明不仅保证了土工膜下气体排出的流畅性，减小了土工膜下气阻，进而减小了土工膜下气体压力，还保证土工膜下气压不超过临界值，解决了目前水库地下水位上升导致土工膜下气胀，以及平原水库水平方向排气路径过长导致排气困难的问题。
Blind ditch exhaust optimization method for reservoir geomembrane seepage prevention
一种用于水库土工膜防渗的盲沟排气优化方法
CAO XUESHAN (author) / YUAN JUNPING (author) / DING GUOQUAN (author) / WANG JUN (author) / WU QI (author) / SHEN ZHENGMAO (author) / LIAO ZHIBIN (author) / BAI LU (author) / DANG SHIQUAN (author)
2022-04-29
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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