Method for building gravity dam on deep and thick cover layer and spandrel concrete gravity dam structure

A technology of deep overburden and concrete, applied in gravity dams, dams, etc., can solve the problems of high technical difficulty and high engineering cost, and achieve the effect of good application prospects, reduction of engineering investment, and reduction of foundation excavation.

Inactive Publication Date: 2015-11-25
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the constraints of topography, geology and overall engineering layout, the dam foundation often has a relatively deep covering layer, and the construction of a gravity dam with a deep covering layer often cannot meet the bearing capacity and anti-sliding stability requirements. Even if the requirements can be met through excavation or foundation treatment, the project cost is high. Extremely technically difficult

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for building gravity dam on deep and thick cover layer and spandrel concrete gravity dam structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0011] like figure 1 As shown, the concrete gravity dam structure on the arch of the present invention includes a bottom arched concrete base 1 and a gravity dam 2 arranged on the arched concrete base 1, and the arch ends of the arched concrete base 1 are arranged on the bedrock 4 on both banks. The bottom of the concrete base 1 is arranged on the steep and deep covering layer 3 , the two ends of the gravity dam 2 are arranged on the bedrock 4 on both banks, and the bottom of the gravity dam 2 is arranged on the arched concrete base 1 .

[0012] Among them, the excavation slope ratio of bedrock 4 is 1:0.1~1:0.5. The deep covering layer 3 adopts dynamic compaction treatment, consolidation grouting treatment or other foundation treatment; the arch concrete base 1 arch is poured in a parabola, concentric circle, two-center circle, three-center c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for building a gravity dam on a deep and thick cover layer and a spandrel concrete gravity dam structure. The method includes the steps that dynamic compaction processing and consolidation grouting processing are carried out on the deep and thick cover layer (3), an arched-type concrete base (1) is arranged on the processed deep and thick cover layer (3), and the arch ends of the arched-type concrete base (1) are arranged on bedrock (4) of two shores; and the gravity dam (2) is arranged on the arched-type concrete base (1), the gravity dam (2) and the arched-type concrete base (1) are integrally grouted, and no structural joint is formed. According to the method and the spandrel concrete gravity dam structure, as the two arch ends of the arched-type concrete base are supported on the bedrock of the two shores, the structural stress is supported to the bedrock at the two ends through an arch span; and as a skewback and an upper dam body are connected into a whole, the anti-sliding stability requirement is met through the resistance supplied through foundation surfaces at the two ends and the arch ends at the bottom.

Description

technical field [0001] The invention relates to the technical field of water-retaining buildings in water conservancy and hydropower projects, in particular to a method for building a gravity dam on a deep covering layer and an arched concrete gravity dam structure. Background technique [0002] In the construction of water conservancy and hydropower projects, the gravity dam is a common and very important hydraulic structure. Usually, the foundation surface at the bottom provides the anti-sliding stability of the entire dam body. Due to the constraints of topography, geology and overall engineering layout, the dam foundation often has a relatively deep covering layer, and the construction of a gravity dam with a deep covering layer often cannot meet the bearing capacity and anti-sliding stability requirements. Even if the requirements can be met through excavation or foundation treatment, the project cost is high. The technical difficulty is extremely high. Contents of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): E02B7/10
Inventor 何建峰杨家修陈海坤赵继勇杨平郑晓晖高传彬
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap