双层盲沟截排水设计在基岩裂隙水地区的应用研究
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摘要
针对变电站工程边坡侧面积水导致边坡失稳及地下水位抬升导致的地面积水问题,提出了一种双层盲沟设计的新方法,边坡外侧截水盲沟和内侧排水盲沟的双层设计和综合应用,对边坡形成了有效保护,并对基岩裂隙引起的地面积水进行了有效疏通,设计时充分考虑并结合现场实际情况,盲沟施工方便,所用材料易取,且造价低廉,设计方案具有实用性和创新性,双层盲沟施工后的效果良好,达到了预期目标,设计方案为条件相同的类似情况的排水设计提供了可供借鉴的工程经验。
A new design method of double-layer blind drainage is proposed to solve the problem of slope instability caused by side area water in substation engineering and surface water accumulation caused by elevation of groundwater level. The bilevel design and comprehensive application of the outer water cut blind ditch and the inner drainage blind ditch form an effective protection for the slope, and the surface water caused by the fissure of the bedrock is effectively dredged, which is fully considered in the design and combined with the actual situation of the site. Blind ditch construction is convenient, the materials used are easy to obtain, and the cost is low. The design scheme of blind ditch is practical and innovative, the effect after construction is better, and the expected goal is achieved. This design scheme could provide engineering experience for similar drainage designs with the same conditions.
A new design method of double-layer blind drainage is proposed to solve the problem of slope instability caused by side area water in substation engineering and surface water accumulation caused by elevation of groundwater level. The bilevel design and comprehensive application of the outer water cut blind ditch and the inner drainage blind ditch form an effective protection for the slope, and the surface water caused by the fissure of the bedrock is effectively dredged, which is fully considered in the design and combined with the actual situation of the site. Blind ditch construction is convenient, the materials used are easy to obtain, and the cost is low. The design scheme of blind ditch is practical and innovative, the effect after construction is better, and the expected goal is achieved. This design scheme could provide engineering experience for similar drainage designs with the same conditions.
引文
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[5] 于超云,唐世斌,唐春安.荷载与水共同作用对红砂岩蠕变特性的影响[J].水利与建筑工程学报,2019,17(1):24-26.
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[8] 汪鸿儒,周海清,吴润泽,等.土体的结构性边坡突变失稳影响研究综述[J].水利与建筑工程学报,2015,15(6):64-66.
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[11] 高玮,冯威,王家超,等.一种基于滑动带的土坡稳定分析方法研究[J].水利与建筑工程学报,2017,15(6):1-4.
[12] 于卫红.盲沟设计经验点滴[J].中国给水排水,2000,16(5):39-40.
[13] 刘小文,许成承,沈细中.碎石盲沟排水对黄河放淤固堤工程淤背体固结影响[J].水文地质工程地质,2011,38(1):80-83.
[14] 王延辉,杨生彬,鄢治华,等.一种用于边坡防治的盲沟结构:中国CN 207700204 U[P].2017-12-01.
[15] 顾卫,邵琪,许映军.塑料盲沟用于边坡客土层底部排水的实验研究[J].应用基础与工程科学学报,2010,18(3):379-389.
[16] 吴福生,张树奎,刘家豪.塑料盲沟水力学性能试验[J].灌溉排水,2001,20(3):79-80.
[2] 李建锋.谈工程地质勘察中的误区与需要注意的问题——基岩裂隙水的特点[J].云南水力发电,2009,25(6):14-15.
[3] 王大纯,张人权,史毅虹,等.水文地质学基础[M].北京:地质出版社,1995.
[4] 杨会军,韩文峰,谌文武,等.基岩裂隙水渗流特性探讨与工程实例[J].岩石力学与工程学报,2003,22(S2):2582-2587.
[5] 于超云,唐世斌,唐春安.荷载与水共同作用对红砂岩蠕变特性的影响[J].水利与建筑工程学报,2019,17(1):24-26.
[6] 杨会军,韩文峰,谌文武,等.基岩裂隙水渗流特性探讨与工程实例[J].岩石力学与工程学报,2003,22(2):79-80.
[7] 耿东阳,孙云飚,丁海鹏.边坡滑坡的影响因素与防治措施[J].山西建筑,2007,33(29):106-108.
[8] 汪鸿儒,周海清,吴润泽,等.土体的结构性边坡突变失稳影响研究综述[J].水利与建筑工程学报,2015,15(6):64-66.
[9] 潘坤.某电厂后边坡岩体倾倒变形特性及失稳破坏模式分析[J].水利水电快报,2019,40(1):23-25.
[10] 杨俊杰,王亮,郑建国.生态边坡客土稳定性研究[J].岩石力学与工程学报,2006,25(2):414-422.
[11] 高玮,冯威,王家超,等.一种基于滑动带的土坡稳定分析方法研究[J].水利与建筑工程学报,2017,15(6):1-4.
[12] 于卫红.盲沟设计经验点滴[J].中国给水排水,2000,16(5):39-40.
[13] 刘小文,许成承,沈细中.碎石盲沟排水对黄河放淤固堤工程淤背体固结影响[J].水文地质工程地质,2011,38(1):80-83.
[14] 王延辉,杨生彬,鄢治华,等.一种用于边坡防治的盲沟结构:中国CN 207700204 U[P].2017-12-01.
[15] 顾卫,邵琪,许映军.塑料盲沟用于边坡客土层底部排水的实验研究[J].应用基础与工程科学学报,2010,18(3):379-389.
[16] 吴福生,张树奎,刘家豪.塑料盲沟水力学性能试验[J].灌溉排水,2001,20(3):79-80.