A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Core-wall rockfill dam foundation gallery structure adopting ECC (Engineered Cementitious Composites) and construction method
The invention discloses a core wall rockfill dam foundation gallery structure adopting ECC (Engineered Cementitious Composites). The core wall rockfill dam foundation gallery structure adopting the ECC comprises a gallery body, wherein the two ends of the gallery body are connected with bed rock; the gallery body comprises a common concrete section and at least one ECC plastic hinge section arranged at the middle section of the common concrete section; interface agents are arranged at the two ends of the ECC plastic hinge section; the gallery body is formed by pouring common concrete; and the ECC shaping hinge section is formed by pouring fiber-reinforced ECC. According to the gallery structure provided by the invention, the characteristic that a material in a large stress area of the gallery body firstly enters a plastic state can be fully utilized, main deformation of the gallery body is actively borne by the ECC plastic hinge section, the deformation and the stress of other parts of the gallery body can be greatly reduced, the cracking risk can be obviously reduced, and the problems of cracking and leakage of other parts of the gallery body can be effectively avoided, so that leakage of the gallery body is avoided on the whole.
本发明公开一种采用ECC的心墙堆石坝坝基廊道结构，包括廊道本体，所述廊道本体两端连接基岩，所述廊道本体包括普通混凝土段以及设在所述普通混凝土段中段的至少一段ECC塑形铰接段，所述ECC塑形铰接段两端设有界面剂；所述廊道本体由普通混凝土浇注而成，所述ECC塑形铰接段由纤维增强水泥基复合材料ECC浇注而成；本发明廊道结构能充分利用廊道本体大应力区材料率先进入塑性状态的特点，由ECC塑性铰接段主动承担廊道本体的主要变形，廊道本体其他部位的变形量及应力将会大幅下降，开裂风险会明显降低，能有效避免廊道本体其他部位的开裂和渗漏问题，从而在整体上避免廊道本体渗漏。
Core-wall rockfill dam foundation gallery structure adopting ECC (Engineered Cementitious Composites) and construction method
The invention discloses a core wall rockfill dam foundation gallery structure adopting ECC (Engineered Cementitious Composites). The core wall rockfill dam foundation gallery structure adopting the ECC comprises a gallery body, wherein the two ends of the gallery body are connected with bed rock; the gallery body comprises a common concrete section and at least one ECC plastic hinge section arranged at the middle section of the common concrete section; interface agents are arranged at the two ends of the ECC plastic hinge section; the gallery body is formed by pouring common concrete; and the ECC shaping hinge section is formed by pouring fiber-reinforced ECC. According to the gallery structure provided by the invention, the characteristic that a material in a large stress area of the gallery body firstly enters a plastic state can be fully utilized, main deformation of the gallery body is actively borne by the ECC plastic hinge section, the deformation and the stress of other parts of the gallery body can be greatly reduced, the cracking risk can be obviously reduced, and the problems of cracking and leakage of other parts of the gallery body can be effectively avoided, so that leakage of the gallery body is avoided on the whole.
本发明公开一种采用ECC的心墙堆石坝坝基廊道结构，包括廊道本体，所述廊道本体两端连接基岩，所述廊道本体包括普通混凝土段以及设在所述普通混凝土段中段的至少一段ECC塑形铰接段，所述ECC塑形铰接段两端设有界面剂；所述廊道本体由普通混凝土浇注而成，所述ECC塑形铰接段由纤维增强水泥基复合材料ECC浇注而成；本发明廊道结构能充分利用廊道本体大应力区材料率先进入塑性状态的特点，由ECC塑性铰接段主动承担廊道本体的主要变形，廊道本体其他部位的变形量及应力将会大幅下降，开裂风险会明显降低，能有效避免廊道本体其他部位的开裂和渗漏问题，从而在整体上避免廊道本体渗漏。
Core-wall rockfill dam foundation gallery structure adopting ECC (Engineered Cementitious Composites) and construction method
一种采用ECC的心墙堆石坝坝基廊道结构及建造方法
LI JIAZHENG (author) / XIE ZHIQIANG (author) / GONG YAQI (author) / SU HAIDONG (author) / QI YONGFENG (author) / QIN QIAN (author) / WANG SHOUHAO (author) / LI MINGXIA (author) / SHI YAN (author)
2021-08-10
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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