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A platform for research: civil engineering, architecture and urbanism
Construction method for pouring rock-fill concrete dam body
A construction method for pouring a rock-fill concrete dam body comprises the steps that a formwork is built in a to-be-poured area, and the formwork and the bottom face form a bin face; paving and filling rockfill materials in the bin surface to form a rockfill layer; pouring equipment is used for conducting self-compacting concrete pouring on the rockfill layer; gradually pouring from the edge of the silo surface to the middle of the silo surface to the intersection area based on the pouring sequence, and completing the pouring of all the silo surfaces formed by the plurality of pouring blocks to form a rock-fill concrete dam body when the sum of the pouring volumes of the pouring blocks of each silo reaches the design size of the silo surface; wherein the intersection area is located in an area with low requirements on stress level and durability in the dam body. According to the method, by changing the conventional pouring sequence and the pouring mode of pouring the outer side of the dam body preferentially, laitance and other performance-degraded materials generated in the pouring process are collected to the area with the low requirement in the dam body and removed in a concentrated mode, the quality assurance rate of dam pouring can be increased, the flatness of the dam layer can be increased, and the dam quality is improved. And the interlayer shear resistance stability is improved.
一种浇筑堆石混凝土坝体的施工方法：在待浇筑区域搭建模板与底面形成仓面；将堆石料铺填在仓面内形成堆石层；利用浇筑设备对堆石层进行自密实混凝土浇筑；基于浇筑顺序由仓面边缘向中部逐步进行浇筑直至交汇区，每仓浇筑块的浇筑方量总和达到仓面的设计尺寸，完成由多个浇筑块构成的全部仓面浇筑以形成堆石混凝土的坝体；其中，交汇区位于坝体内部应力水平和耐久性要求低的区域。本申请通过改变常规浇筑顺序，优先浇筑坝体外侧的浇筑方式，使浇筑中产生的浮浆等性能劣化的材料汇集至坝体内部要求较低的区域并集中清除，不仅能够提高大坝浇筑的质量保证率，而且能够提高大坝层面的平整度，提高其层间抗剪稳定。
Construction method for pouring rock-fill concrete dam body
A construction method for pouring a rock-fill concrete dam body comprises the steps that a formwork is built in a to-be-poured area, and the formwork and the bottom face form a bin face; paving and filling rockfill materials in the bin surface to form a rockfill layer; pouring equipment is used for conducting self-compacting concrete pouring on the rockfill layer; gradually pouring from the edge of the silo surface to the middle of the silo surface to the intersection area based on the pouring sequence, and completing the pouring of all the silo surfaces formed by the plurality of pouring blocks to form a rock-fill concrete dam body when the sum of the pouring volumes of the pouring blocks of each silo reaches the design size of the silo surface; wherein the intersection area is located in an area with low requirements on stress level and durability in the dam body. According to the method, by changing the conventional pouring sequence and the pouring mode of pouring the outer side of the dam body preferentially, laitance and other performance-degraded materials generated in the pouring process are collected to the area with the low requirement in the dam body and removed in a concentrated mode, the quality assurance rate of dam pouring can be increased, the flatness of the dam layer can be increased, and the dam quality is improved. And the interlayer shear resistance stability is improved.
一种浇筑堆石混凝土坝体的施工方法：在待浇筑区域搭建模板与底面形成仓面；将堆石料铺填在仓面内形成堆石层；利用浇筑设备对堆石层进行自密实混凝土浇筑；基于浇筑顺序由仓面边缘向中部逐步进行浇筑直至交汇区，每仓浇筑块的浇筑方量总和达到仓面的设计尺寸，完成由多个浇筑块构成的全部仓面浇筑以形成堆石混凝土的坝体；其中，交汇区位于坝体内部应力水平和耐久性要求低的区域。本申请通过改变常规浇筑顺序，优先浇筑坝体外侧的浇筑方式，使浇筑中产生的浮浆等性能劣化的材料汇集至坝体内部要求较低的区域并集中清除，不仅能够提高大坝浇筑的质量保证率，而且能够提高大坝层面的平整度，提高其层间抗剪稳定。
Construction method for pouring rock-fill concrete dam body
一种浇筑堆石混凝土坝体的施工方法
LI FENGLIANG (author) / ZHANG QUANYI (author) / BI ZHONGMING (author) / ZENG XU (author) / QIAO ZHICHAO (author) / LUO JIAN (author) / WU WEI (author) / WAN PENG (author) / WANG ZHUJUN (author)
2023-12-26
Patent
Electronic Resource
Chinese
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