Disposal pore-forming and rotary-spraying construction equipment and method in horizontal rotary-spraying construction

Abstract

A disposable pore-creating and rotary spray construction equipment and method in the horizontal rotary spray construction of the architectural engineering technique field is disclosed. The equipment includes a multifunction showerhead, a wolframi steel alloy drill, and an one-way valve. In the one-way valve, a valve is mounted at the upper portion of the bracket support through a joint lever, thejoint lever thrills through a first spring to connect the bracket support, a bottom nozzle is mounted at the bottom of the bracket support, a horizontal plug is mounted in the bracket support, the bottom of the horizontal plug is connected to a second spring, the middle part of the horizontal plug is connected to an upright connection conductive pole mounted in the bracket support through pin bolts, the upright connection conductive pole is fixed in the bracket support through a pin bolt and can freely rotate by taking the pin bolt as center, and a horizontal connection conductive pole is mounted in the bracket support to have a tail connection with the upright connection conductive pole. The inventive device and method can greatly improve construction efficiency and reinforced scope, andcan avoid the affect to ambient environment.

Description

technical field [0001] The invention relates to a construction equipment and method in the technical field of construction engineering, in particular to a construction equipment and method for one-time hole forming and rotary spraying in horizontal rotary spraying construction. Background technique [0002] In 1969, Dr. Nakanishi Shibu of Japan NIT Company combined the principle of high-pressure water jet technology in hydraulic coal mining with chemical grouting technology, sprayed and impacted the soil with high-pressure cement slurry, and the slurry and soil particles were mixed with each other. After chemical reaction, a solid cylindrical solid body is formed. This method was originally called the CCP method. It was constructed with a single pipe. Because the high-pressure jet is sprayed out by the rotating nozzle during construction, it is called the high-pressure rotary jet grouting method in my country. In order to continuously meet the requirements of large diameter...

AI Technical Summary

Problems solved by technology

But the construction method of this invention has the following several deficiencies: 1) the drill pipe is separated from the rotary spray rod, the equipment is complicated, and the economy is poor; 2) the sheath pipe is drilled and rotary sprayed simultaneously, which makes the construction process complicated and low in efficiency; 3) The drill pipe can only be used for 180° pendulum cutting of soil, which reduces the scope of reinforcement

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