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A platform for research: civil engineering, architecture and urbanism
Design and construction method of clay joint between asphalt concrete panel and diaphragm wall on deep and thick covering layer
The invention belongs to the technical field of earth and rockfill dam buildings, and particularly discloses a design and construction method of a clay joint between an asphalt concrete panel and an anti-seepage wall on a deep covering layer. The method comprises the following steps: (1) constructing a concrete face dam body and a concrete diaphragm wall main body; (2) a trapezoidal support is arranged on the downstream side of the top area of the diaphragm wall and connected with the asphalt concrete panel; and (3) the top of the diaphragm wall is wrapped with high-plasticity soil and clay and horizontally extends to the panel. The method has the beneficial effects that the high-plasticity soil and the clay can well adapt to differential settlement caused by modulus difference between the covering layer and the concrete diaphragm wall; the supporting structure on the downstream side of the anti-seepage wall further reduces the gradient of the settlement difference between the anti-seepage wall and the covering layer; due to the double-layer anti-seepage design of the asphalt concrete panel and the clay, the seepage damage of the clay is avoided, and the seepage of the area near the joint of the panel and the anti-seepage wall is reduced.
本发明属于土石坝建筑技术领域，具体公开了一种深厚覆盖层上沥青混凝土面板与防渗墙间黏土接头的设计及施工方法。步骤如下：1)施工混凝土面板坝坝体和混凝土防渗墙主体；2)防渗墙顶部区域的下游侧设置梯形支撑并与沥青混凝土面板相连；3)防渗墙顶部包裹高塑性土和粘土并水平延伸至面板。本发明有益效果是：高塑性土和粘土可很好的适应覆盖层与混凝土防渗墙模量差导致的不均匀沉降；防渗墙下游侧支撑结构进一步降低了防渗墙与覆盖层沉降差的梯度；沥青混凝土面板和黏土的双层防渗设计，既避免了黏土的渗透破坏，又降低了面板与防渗墙接头附近区域的渗漏。
Design and construction method of clay joint between asphalt concrete panel and diaphragm wall on deep and thick covering layer
The invention belongs to the technical field of earth and rockfill dam buildings, and particularly discloses a design and construction method of a clay joint between an asphalt concrete panel and an anti-seepage wall on a deep covering layer. The method comprises the following steps: (1) constructing a concrete face dam body and a concrete diaphragm wall main body; (2) a trapezoidal support is arranged on the downstream side of the top area of the diaphragm wall and connected with the asphalt concrete panel; and (3) the top of the diaphragm wall is wrapped with high-plasticity soil and clay and horizontally extends to the panel. The method has the beneficial effects that the high-plasticity soil and the clay can well adapt to differential settlement caused by modulus difference between the covering layer and the concrete diaphragm wall; the supporting structure on the downstream side of the anti-seepage wall further reduces the gradient of the settlement difference between the anti-seepage wall and the covering layer; due to the double-layer anti-seepage design of the asphalt concrete panel and the clay, the seepage damage of the clay is avoided, and the seepage of the area near the joint of the panel and the anti-seepage wall is reduced.
本发明属于土石坝建筑技术领域，具体公开了一种深厚覆盖层上沥青混凝土面板与防渗墙间黏土接头的设计及施工方法。步骤如下：1)施工混凝土面板坝坝体和混凝土防渗墙主体；2)防渗墙顶部区域的下游侧设置梯形支撑并与沥青混凝土面板相连；3)防渗墙顶部包裹高塑性土和粘土并水平延伸至面板。本发明有益效果是：高塑性土和粘土可很好的适应覆盖层与混凝土防渗墙模量差导致的不均匀沉降；防渗墙下游侧支撑结构进一步降低了防渗墙与覆盖层沉降差的梯度；沥青混凝土面板和黏土的双层防渗设计，既避免了黏土的渗透破坏，又降低了面板与防渗墙接头附近区域的渗漏。
Design and construction method of clay joint between asphalt concrete panel and diaphragm wall on deep and thick covering layer
一种深厚覆盖层上沥青混凝土面板与防渗墙间黏土接头的设计及施工方法
ZOU DEGAO (author) / QU YONGQIAN (author) / KONG HUN-KYUNG (author) / CHEN KAI (author) / ZHOU CHENGUANG (author) / LIU JINGMAO (author) / CHANG ZHEYU (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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