A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anti-seepage earth dam heightening construction process
The invention relates to an anti-seepage earth dam heightening construction process. The anti-seepage earth dam heightening construction process comprises the following steps that a plurality of geomembranes are provided, pieces of geotechnical cloth correspondingly cover the upper side and the lower side of each geomembrane to form an anti-seepage net, and a plurality of connecting holes are dug in the top of an original earth dam; firstly one end of the anti-seepage net is placed in the connecting holes, and a proper amount of modified concrete is poured into the connecting holes for fixing; then common concrete is poured on the dam top of the original earth dam to obtain the heightened dam; and finally, the other end of the anti-seepage net is fixed to the dam top of the heightened dam, and the anti-seepage net is laid and covers one side of the upstream of the heightened dam. By the adoption of the technical scheme, the anti-seepage effect is improved, the geomembranes can be prevented from being exposed to the sun or attacked by rainstorm, the service life of the geomembranes is prolonged, the anti-seepage net is fixed by pouring the modified concrete, the joint of the original earth dam core and the heightening dam core is heated and deformed consistently, the service life of a new earth dam is prolonged, and the geomembranes are anchored by using an anchor rod, so that the anti-seepage effect is further improved.
本发明涉及一种防渗土坝增高施工工艺，提供若干块土工膜，在每块土工膜的上下两侧分别覆盖一块土工布组成防渗网，在原土坝坝顶挖掘若干个连接孔，先将防渗网的一端置于连接孔内，向连接孔内浇注适量改性混凝土进行固定，再在原土坝坝顶浇筑普通混凝土获得增高坝，最后将防渗网的另一端固定于增高坝坝顶上，并使防渗网摊铺覆盖于增高坝上游一侧。采用本发明的技术方案，既提升了防渗效果，又能避免土工膜受到阳光暴晒或暴雨侵袭，延长了土工膜的使用寿命，通过浇筑改性混凝土固定防渗网，使原土坝芯部与增高坝芯部连接处受热形变保持一致，有利于延长新土坝的使用寿命，还通过使用锚杆将土工膜锚固，进一步提升了防渗效果。
Anti-seepage earth dam heightening construction process
The invention relates to an anti-seepage earth dam heightening construction process. The anti-seepage earth dam heightening construction process comprises the following steps that a plurality of geomembranes are provided, pieces of geotechnical cloth correspondingly cover the upper side and the lower side of each geomembrane to form an anti-seepage net, and a plurality of connecting holes are dug in the top of an original earth dam; firstly one end of the anti-seepage net is placed in the connecting holes, and a proper amount of modified concrete is poured into the connecting holes for fixing; then common concrete is poured on the dam top of the original earth dam to obtain the heightened dam; and finally, the other end of the anti-seepage net is fixed to the dam top of the heightened dam, and the anti-seepage net is laid and covers one side of the upstream of the heightened dam. By the adoption of the technical scheme, the anti-seepage effect is improved, the geomembranes can be prevented from being exposed to the sun or attacked by rainstorm, the service life of the geomembranes is prolonged, the anti-seepage net is fixed by pouring the modified concrete, the joint of the original earth dam core and the heightening dam core is heated and deformed consistently, the service life of a new earth dam is prolonged, and the geomembranes are anchored by using an anchor rod, so that the anti-seepage effect is further improved.
本发明涉及一种防渗土坝增高施工工艺，提供若干块土工膜，在每块土工膜的上下两侧分别覆盖一块土工布组成防渗网，在原土坝坝顶挖掘若干个连接孔，先将防渗网的一端置于连接孔内，向连接孔内浇注适量改性混凝土进行固定，再在原土坝坝顶浇筑普通混凝土获得增高坝，最后将防渗网的另一端固定于增高坝坝顶上，并使防渗网摊铺覆盖于增高坝上游一侧。采用本发明的技术方案，既提升了防渗效果，又能避免土工膜受到阳光暴晒或暴雨侵袭，延长了土工膜的使用寿命，通过浇筑改性混凝土固定防渗网，使原土坝芯部与增高坝芯部连接处受热形变保持一致，有利于延长新土坝的使用寿命，还通过使用锚杆将土工膜锚固，进一步提升了防渗效果。
Anti-seepage earth dam heightening construction process
一种防渗土坝增高施工工艺
XU LONGWEI (author) / LIU GANG (author) / CUI GUANGZHUO (author) / YANG QINGGAO (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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