Jet flow spray nozzle for grouting and grouting drill
A jet nozzle and grouting technology, which is used in soil protection, construction, infrastructure engineering and other directions to achieve good infiltration effect, large infiltration range and good grouting effect.
Pending Publication Date: 2019-11-19
MCC COMM CONSTR GRP CO LTD
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Problems solved by technology
[0004] However, in the existing grouting technology, the range of grout infiltrated through the through hole of the side wall of the drill pipe at the same drilling point is relatively small, and denser drilling points must be arranged for grouting within the range of the formation that needs to be reinforced. may meet the requirements
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[0028] In order to further illustrate the technical means and effects of the present invention for solving technical problems, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the provided accompanying drawings are schematic and mutually exclusive They are not drawn to scale or scale, and therefore the drawings and specific examples are not intended to limit the scope of protection claimed by the invention.
[0029] like figure 1 The shown optional embodiment of the jet nozzle for grouting, the jet nozzle 1 includes a spray chamber 101, the spray chamber 101 is a conical through hole with different diameters at both ends, wherein the diameter of the larger end of the spray chamber 101 is 3.0mm, the smaller end diameter is 1.8mm, the length of the spray chamber 101 is 18.5mm, the taper of the spray chamber 101 is 0.065, the taper calculation method in this paper is the...
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The invention belongs to the technical field of tools for construction of civil engineering and discloses a jet flow nozzle for grouting. The jet flow spray nozzle comprises a spray cavity, and the spray cavity is a conical through hole with different diameters at the two ends, wherein the diameter of the large end of the spray cavity ranges from 2.9 mm to 3.1 mm, and the conicity of the spray cavity ranges from 0.059 to 0.07. The invention further discloses a grouting drill. The grouting drill comprises a drill rod and jet flow spray nozzles for grouting. A body of the drill rod is in a hollow round pipe shape, jet flow grooves are formed in the outer surface of the drill rod, jet flow holes communicated with the hollow part of the drill rod are formed in the jet flow grooves, and the jetflow spray nozzles are installed in the jet flow holes and do not protrude out of the outer surface of the body of the drill rod. By means of the jet flow spray nozzle for grouting and the grouting drill, grout for single-point grouting condenses in soil and then forms a condensation body with a large dimension and size, a good grouting effect is achieved, and the grouting construction quality isbetter ensured.
Description
technical field [0001] The invention belongs to the technical field of civil engineering construction equipment, and in particular relates to a jet nozzle and a grouting drill for grouting. Background technique [0002] Grouting technology is widely used in various fields such as transportation, construction, municipal administration, and mining engineering. Grouting is to use grouting to drill into the soil layer and inject the grout into the formation with a certain pressure through compaction, splitting, infiltration, etc. , so as to strengthen the technology of the formation. [0003] In grouting construction, the drill pipe made of hollow pipe is generally inserted into the formation, and some through holes are set on the side wall of the drill pipe, and then the grout is transported through the hollow part of the drill pipe with a certain pressure, and then squeezed out from the through hole. It is pressed out and infiltrated into the soil of the stratum. After conden...
Claims
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IPC IPC(8): E02D3/12
CPCE02D3/12
Inventor 白士新
Owner MCC COMM CONSTR GRP CO LTD