Severe cold region foundation pit concrete overwintering protection construction method
A construction method and concrete technology, which is applied in the direction of basic structure engineering, excavation, building construction, etc., can solve problems such as winter protection problems, and achieve the effects of saving time, reducing costs, and improving efficiency
Active Publication Date: 2019-12-20
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention provides a construction method for overwintering protection of foundation pit concrete in severe cold areas to solve the existing problem of overwintering protection for concrete construction in severe cold areas
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The embodiment of the winter protection construction method of foundation pit concrete in severe cold area of the present invention, as figure 1 as shown,
[0021] A construction method for overwintering protection of foundation pit concrete in severe cold regions, characterized in that the steps are as follows:
[0022] Step 1. Concrete strength inspection: before water storage, firstly inspect the strength of the completed concrete to ensure that the concre...
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
Login to View More Abstract
The invention relates to the field of water conservancy and hydropower construction, in particular to a severe cold region foundation pit concrete overwintering protection construction method. The method comprises the steps of (1) concrete strength inspection, (2) water filling pipe laying, (3) temperature measuring instrument burying, (4) steel bar rust protection treatment, (5) slope protection,(6) water storage, (7) water level monitoring, and (8) water temperature monitoring. By means of the method, the expected effect of protecting concrete is achieved through heat resistance of water, cost of pumping water from the foundation pit, applying thermal insulation materials and the like in winter is saved, the cost is reduced, in addition, the time of the whole construction process is shortened, and the efficiency of protection engineering is improved.
Description
technical field [0001] The invention relates to the field of water conservancy and hydropower construction, and relates to a construction method for overwintering protection of foundation pit concrete in severe cold regions. Background technique [0002] In Northeast China, especially large-scale water conservancy construction projects, due to the influence of region, climate and construction period, many projects need to span one or more winters in the process of concrete construction, and the duration of winter in Northeast China can reach 4-5. For a long time, the concrete under construction in winter is prone to cracks and suffers from frost heave damage. Effective protective measures should be taken for young concrete to ensure the quality of the concrete. [0003] For example, in the construction of a part of the standard gate of the dam in Heilongjiang, this part of the concrete is in the strong constraint area of the foundation, and the age is relatively short. Eff...
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
Login to View More IPC IPC(8): E02D15/02E02D17/04E04G21/28
CPCE02D15/02E02D17/04E02D2300/002E04G21/246E04G21/28
Inventor 李清伟马建忠刘洋潘自新张家豪
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD