A construction method of a subway enclosure structure and a subway enclosure structure
A technology for enclosure structures and subways, applied to underwater structures, infrastructure engineering, buildings, etc., can solve problems such as insufficient safety, poor operability, and narrow construction sites
Active Publication Date: 2018-11-20
GUANGZHOU METRO DESIGN & RES INST
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When constructing the subway roof, the foundation pit above the roof is generally supported by grading, soil nailing or anchor rods, etc., and the crown beam is lowered below the roof surface. This construction method is at a crossroad, where the traffic is crowded and the construction site is narrow. No grading conditions, or poor operability and insufficient safety at the construction site of steel sheet piles in sand and pebble formations
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
[0039] combine Figure 1 to Figure 4 , the building method of a kind of subway enclosure structure described in the present invention, comprises the following steps successively:
[0040] a. Determine the size and construction location of the retaining pile / wall 1.
[0041] b. Forming holes / slots and clearing the holes / slots; making the reinforcement cage 2, and the reinforcement cage 2 is provided with a datum plane flush with the ground 7. The reinforcement cage 2 is a two-layer stepped reinforcement cage, and the step joint can be at any depth of 3.5 meters to 5.4 meters below the datum level. Place reinforcement cage 2 in the hole / groove, the back side of reinforcement cage 2 is the soil-facing side; figure 1 The side A is the back side of the reinforcement cage 2, that is, the side facing the soil, and the side B is the front side of the reinforcement cage 2, that is, the side facing the soil; the surface indicated by C is a step joint, and the connecting part of the tw...
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 provides a construction method of a subway envelop enclosure structure. A two-layer-step-shaped envelop enclosure pile / wall is arranged; a crown beam is constructed in an exposed position of a step joint surface of the envelop enclosure pile / wall; a ring beam is built at the top of the envelop enclosure pile / wall; and finally, a subway top plate is constructed on the crown beam. The invention further provides the subway envelop enclosure structure; the subway envelop enclosure structure comprises the two-layer-step-shaped envelop enclosure pile / wall embedded underground; the crown beam is constructed in the exposed position of the step joint surface of the envelop enclosure pile / wall; the subway top plate is constructed on the crown beam, and is provided with a material filling part; the ring beam is arranged at the top end of the envelop enclosure pile / wall; the top surface of the ring beam is leveled with the ground; and the upper surface of the material filling part is leveled with the top surface of the ring beam. The method and the structure improve the construction operability of a cover and cut-bottom up method under the environment of crossroads, traffic jam, narrow construction fields, no sloping conditions or sandy pebble stratum.
Description
technical field [0001] The invention relates to the field of subway construction, in particular to a construction method of a subway enclosure structure and a subway enclosure structure. Background technique [0002] In the central area of the city with heavy traffic, when the rail transit station is built under the road where the road traffic cannot be interrupted for a long time, in order to reduce the impact on the ground traffic and commerce during the construction period, the station structure can be constructed by the cover-and-excavation method. [0003] According to different construction steps, the cover-excavation method can be divided into the cover-excavation reverse construction method and the cover-excavation sequential construction method. One form of the cover-excavation construction method is to directly use the roof of the main structure of the station, the enclosure structure and the intermediate support piles as the force-bearing system, and restore par...
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): E02D29/045
Inventor 阮艳妹于健王睿唐文鹏郑石王建
Owner GUANGZHOU METRO DESIGN & RES INST