New and old structure underground corridor foundation connection construction joint anti-seepage treatment method
A technology for construction joints and anti-seepage, which is applied in the direction of basic structure engineering, underwater structures, artificial islands, etc., can solve the problems of poor construction quality and single anti-seepage method, so as to avoid damage to interior decoration and strengthen Self-waterproof ability and the effect of strengthening the connection strength
Pending Publication Date: 2022-07-08
CHINA MCC5 GROUP CORP
View PDF38 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] At present, the anti-seepage treatment method for construction joints or cold construction joints of basement structures at home and abroad is to install water-stop steel plates. The conventional method is to chisel th
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 1
[0072] This embodiment is a specific implementation method of the present invention:
[0073] S1. First, excavate and support the outer backfill of the underground side walls of the original old structure according to the graded grading to the design elevation. After cleaning the original strip foundation, cut it out according to the step-like layers to form a special structural construction joint;
[0074] S2. Secondly, drill holes and plant reinforcement at the design planting position, which is arranged in a plum blossom shape;
[0075] The implanted steel bars include short steel bars A3 and full-length steel bars B4;
[0076] The end of the free end of the short steel bar A3 is a 90° hook to increase the anchoring force between the new foundation 2 and the original foundation 1 concrete. The depth of the reinforcement is 15d, and d is the diameter of the implanted steel bar;
[0077] For the full-length steel bar B4, the depth of planting is 25D, and D is the diameter of...
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
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to the technical field of constructional engineering, and particularly discloses a new and old structure underground corridor foundation connection construction joint anti-seepage treatment method which specifically comprises the following steps that the side, close to a new foundation, of an original foundation is excavated, so that a step-shaped construction joint is formed; mounting embedded steel bars and water stop components on the vertical surface of the construction joint; the embedded steel bars extend into the new foundation; a concrete cushion layer, a leveling layer, a waterproof layer and a waterproof protection layer are sequentially constructed at the bottom of the foundation trench of the newly-built underground corridor; original foundation steel bars are connected with new foundation steel bars, and new foundation waterproof concrete is poured; after the new foundation is poured, a channel steel-shaped drainage belt is mounted above the construction joint; one side of the drainage belt is inserted into the original foundation, and the other side of the drainage belt is inserted into the new foundation. Compared with the prior art, the waterproof and anti-seepage structure has good waterproof and anti-seepage effects.
Description
technical field [0001] The invention relates to the technical field of construction engineering, and more particularly, to a method for anti-seepage treatment of construction joints connecting the foundations of underground corridors of new and old structures. Background technique [0002] At present, the anti-seepage treatment method for basement structure construction joints or construction cold joints at home and abroad is to set water-stop steel plates. The conventional method is to chisel, clean and brush the surface of the poured concrete. The pressure grouting method solves the internal water seepage, and its anti-seepage method is relatively simple, and the construction quality effect is not good. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a method for anti-leakage treatment of the connection construction joints of the foundations of underground corridors of new and old structures. [0004] The solut...
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): E02D29/16E02D31/02
CPCE02D29/16E02D31/02
Inventor 李程邓金云刘飞肖淳
Owner CHINA MCC5 GROUP CORP