Construction structure for ultra-deep and ultra-thick entering-rock basement continuous wall multi-slot segment joint treatment
A technology for underground diaphragm walls and basements, which is applied in infrastructure engineering, sheet pile walls, excavation, etc., can solve the problem of not fully coordinating the working time of the milling machine and the rotary drilling, affecting the construction efficiency of the joint treatment of the groove section, and breaking the woven bag. The problems such as the inability to remove swarf can achieve the effect of reducing the degree of processing construction operations, saving construction costs, and improving work efficiency
Inactive Publication Date: 2018-12-25
CCFED THE FIRST CONSTR & ENG
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The impact hammer has finished processing the sandbags and cement laitance at the joint, and the woven bag debris of the sandbag is still in the groove section at the joint and cannot be removed. When the adjacent groove section is milled, the woven bag debris will cause the milling machine to block the pipe
The width of the east, west and north walls of the underground diaphragm wall of this project is 1500mm, and the construction idea of putting the lead hole outside 600mm does not fully coordinate the working time of the slot milling machine and the rotary drilling drill, which seriously affects the construction efficiency of the joint treatment of the slot section
Traditional treatment of joint construction has not yet used BIM 3D live simulation technology for comparison simulation before and after technical improvement
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 moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment
[0011] This embodiment provides a method for treating the joints of the multi-slot section of the continuous wall of the ultra-deep and ultra-thick rock-entry basement. Taking the Evergrande Center project as an example, this technology has been fully considered in the early stage of the underground continuous wall construction, and the first slot and the connecting slot lead hole Putting 1000mm can maximize the use of the rotary drill to clean the solidified sandbags and cement slurries at the joints of the grooves, reduce the workload of the subsequent groove milling machine to process the joints of the grooves, and improve work efficiency; uncontrollable factors are unavoidable in the underground concrete at the joints of the grooves , The use of I-beam, triple high pressure jet grouting piles and post-grouting technology to jointly stop the water to ensure the impermeability of the joints of the underground continuous wall; after the initial setting of the concrete in the fir...
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 treatment method for an ultra-deep and ultra-thick entering-rock basement continuous wall multi-slot segment joint, and belongs to the technical field of construction foundation pit support. According to the treatment method for the ultra-deep and ultra-thick entering-rock basement continuous wall multi-slot segment joint, a first slot and a connecting slot of a basement continuous wall are subjected to hole guiding and outward enlarging for 1 m, under the circumstance of ensuring the allowable deviation value of perpendicularity and the size of an I-steel outer side flange, cement laitance and solidified sandbags at a slot segment joint are cleaned by using a rotary drill to the maximum, and the workload of a subsequent slot milling machine is reduced. The problemexisting in the prior art is solved.
Description
Technical field [0001] The invention relates to a method for processing joints of multiple groove sections of an ultra-deep and ultra-thick underground continuous wall, which belongs to the technical field of building foundation pit support. Background technique [0002] With the diversified development of building structures, underground diaphragm walls are increasingly used in foundation pit support. The traditional method for treating the joints of the underground continuous wall is generally to put 600mm outside the lead hole, and after the concrete is poured in the trough section, the sandbags and cement laitance at the joints of the trough section are treated with an impact hammer. Due to the large size of the steel cage, 63.52m in length, 6.00m in width, and 1.38m in thickness, due to the proximity of the subway to this project, it is strictly prohibited to use impact hammers with high noise and slow efficiency in the subway protection area. The impact hammer has processe...
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 Applications(China)
IPC IPC(8): E02D17/04E02D5/18
CPCE02D5/187E02D17/04
Inventor 张文张明梁森陈锐卢杨益王志宏钟棋栊
Owner CCFED THE FIRST CONSTR & ENG