Occlusive pile of long spiral stirring water-stop curtain and construction process thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of stirring piles and long spirals, which is applied in the field of long spiral stirring water-stop curtain occlusal piles and the construction technology of piles, which can solve the problems of difficult civilized construction, low construction efficiency, failure to reach the designed depth and designed diameter, etc.
Inactive Publication Date: 2009-12-16
深圳市南华岩土工程有限公司
View PDF1 Cites 22 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] In order to overcome the shortcomings that the existing cement-soil mixing piles cannot reach the designed depth and diameter when encountering sand layers and sandy pebble formations; and the construction efficiency is low, and it is difficult to realize civilized construction, the pr
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0022] Example 1 - Mafang New Village Phase II Underground Garage Foundation Pit Support Project:
[0023] 1. Project overview and geological conditions
[0024] The proposed project is located on Mafang East Road, Chaoyang District, Beijing, and is used as an underground garage with a second basement floor and 1.5m of earth covering. This project is a reinforced concrete frame structure on the second floor underground, partly out of the ground. The foundation adopts beam-slab raft foundation.
[0025] The relative elevation of this project ±0.000 is equivalent to the absolute elevation of 38.600. The elevation of the bottom of the underground garage is -13.46m (the absolute elevation is 25.14m), and the depth of the foundation pit is 12.76m.
[0026] 1.1 Engineering geological conditions of the site
[0027] According to the depositional age and genetic type, the strata in the survey area are divided into two categories: artificial accumulation layer and Quaternary sedime...
Embodiment 2
[0097] Example 2 Foundation Pit Support Engineering of Tianli Production R&D Building Project
[0098] 1 Project overview
[0099] The proposed Tianli production and R&D building project is located at No. 101 Lize Zhongyuan, Wangjing, Chaoyang District, Beijing, and is now in the courtyard of Beijing Tianli Cryogenic Equipment Co., Ltd.
[0100] According to the information provided in the "Tianli Production and R&D Building Foundation Pit Support Construction Bidding Document", this project includes the main building and the pure underground part. The main building has 13 floors above the ground, and the frame-core tube structure has a total height of 59.9m; there are 2 underground floors. The south side of the main building is a purely underground part, with a basement floor, which is mainly used for parking vehicles (partially with equipment mezzanine), frame structure, and its overlying soil is 3.90m.
[0101] The ground elevation of the basement 2 floors of the main buil...
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 a novel pile-forming method of a cement-soil stirring pile. The method comprises the following steps: measuring and putting lines to determine pile position; putting a long spiral drill in place, and adopting the long spiral drill to drill a hole to determine the accurate position of a pile, loosen a hardpan and eliminate underground barrier; backfilling to the opening of the hole, or reversing and lifting the drill; drilling by a long spiral stirring pile drill while pumping and stirring serum to a designed hole bottom elevation; during returning upwards, guniting while stirring to the designed elevation, and then stirring repeatedly and guniting to form a pile; after finishing stirring pile construction, making use of the long spiral stirring pile drill to drill the stirring pile to form holes; and finally, inserting slope-protection piles used in steel reinforcement cage construction after concrete grouting to form an entire curtain. The novel pile-forming method has the advantages that a long spiral stirring pile is adopted to lay a foundation for the smooth construction of slope-protection piles; the renovated long spiral drill can drill in harder soil stratum, sand stratum and gravel stratum, thereby reaching the designed depth and diameter; and the integral curtain with occlusive slope-protection piles and cement-soil piles not only supports foundation pits, but also realizes effective water stopping.
Description
technical field [0001] The invention belongs to the pile-forming technology in building foundation construction, and in particular relates to a long spiral stirring water-stop curtain occlusal pile and a construction technology for pile-forming thereof. The long spiral stirring pile is engaged with the slope protection pile to form a water-stop (water-proof or water-cutting) curtain, and can also be used for the slope protection pile and its mother pile, the composite foundation pile and its mother pile, and the anti-floating (pulling) pile mother pile. Especially in the hard soil layer in the northern region, it has more advantages. Background technique [0002] Cement-soil mixing piles are a common method of curtain piles in soft soil areas, but construction in hard soil layers in northern areas is ineffective, especially in sand and sand and pebble layers, and cannot reach the design depth, so it is no longer applicable. Rotary grouting piles are also a common method of ...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more