Construction method of a press-in caisson
A construction method and press-in technology, which is applied in caissons, infrastructure engineering, construction, etc., can solve problems such as difficult control of the press-in process, and achieve the effect of solving difficult control
Active Publication Date: 2018-11-30
SHANGHAI URBAN CONSTRUCTION MUNICIPAL ENGINEERING (GROUP) CO LTD
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0012] The object of the present invention is to provide a construction method for a press-in caisson according to the above-mentioned deficiencies in the prior art. process difficult to control
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
[0032] Example: such as figure 1 As shown, this embodiment specifically relates to a construction method of a press-in caisson. In this embodiment, the caisson 1 includes multiple caisson segments 2, and each caisson segment 2 is pressed into the soil in sequence during the construction process. Inside the layer 6, the adjacent caisson segments 2 are connected to each other at the same time; the construction method of this embodiment specifically includes the following steps:
[0033] 1. Pre-construction preparation
[0034] Such as figure 2 As shown, the site is leveled before starting construction; the counter force ground anchor 4 is set around the preset position of the caisson port 3; the jet grouted pile is constructed under the preset position at the bottom of the caisson by using a high-pressure jet grouting machine; Monitoring points and observation wells around the preset position of port 3; set up isolation pile measures to protect the safety of structures around...
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 discloses a construction method for a press-in type open caisson. The construction method comprises the following steps that the open caisson sections are pressed into a soil layer section by section; the adjacent open caisson sections are connected with each other; in the press-in process of the open caisson sections, a downward pressing assembly is arranged at the top end of each open caisson section and used for adjusting the posture and the settling velocity of the open caisson sections; after the open caisson sections are pressed into the soil layer, a hold hoop is annularly arranged on the surface, located on the periphery of the port of the open caisson, of the soil layer and is fixedly connected with the outer wall of the open caisson sections; and the hold hoop abuts against the surface of the soil layer, so that settling of the open caisson sections is stopped. The construction method has the advantages that (1) settling of the open caisson sections can be prevented by adopting the hold hoop, and construction personnel can use the hold hoop to stop the open caisson sections from settling as required; and (2) the downward pressing assembly can adjust the settling velocity and the posture of the open caisson sections, so that the problem that the settling process of the open caisson sections is difficult to control is solved.
Description
technical field [0001] The invention belongs to the field of building construction, and in particular relates to a construction method for a press-in caisson. Background technique [0002] In areas where parking spaces are scarce and land use is tight, building a three-dimensional garage is a very effective solution. This kind of three-dimensional garage can be an underground vertical lift type mechanical garage, and adopts a four-lift shaft layout plan. About the lift shaft Construction scheme, the following construction methods are usually used at present: [0003] (1) Compressed air caisson construction method: [0004] To put it simply, a reinforced concrete working chamber with high airtightness is set up at the lower part of the caisson, and the compressed air whose pressure is equal to the groundwater pressure at the blade foot is injected into the working chamber through the air pressure automatic adjustment device, so that the operators can Excavation and dumping ...
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): E02D23/08
CPCE02D23/08
Inventor 陈立生彭少杰朱继文赵国强郑杰柳林齐
Owner SHANGHAI URBAN CONSTRUCTION MUNICIPAL ENGINEERING (GROUP) CO LTD