Concrete Overwinter Protection Construction Method for Foundation Pit in Severely Cold Area
A construction method and concrete technology, which is applied in the direction of infrastructure engineering, excavation, and processing of building materials, etc., can solve problems such as winter protection problems, and achieve the effects of saving time, reducing costs, and improving efficiency
Active Publication Date: 2021-07-09
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
View PDF0 Cites 0 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, and relates to a winter protection construction method for foundation pit concrete in severe cold areas. A winter protection construction method for foundation pit concrete in severe cold areas, the steps are as follows: step 1, checking the strength of concrete; step 2, laying water injection pipes; step 3, burying temperature measuring instruments; step 4, anti-rust treatment of steel bars; step 5, side slope protection; step 6, water storage; step 7, water level monitoring; step 8, water temperature monitoring; this method achieves the expected effect of protecting concrete through the heat resistance performance of water, and saves the cost of pumping water for foundation pits and laying insulation materials in winter , reduce the cost, save the time of the whole construction process, and improve the efficiency of the protection project.
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, affected by the region, climate and construction period, many projects need to span one or more winters during the concrete construction process, and the winter period in Northeast China can last up to 4 to 5 months 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. E...
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 Patent Type & Authority Patents(China)
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