High-performance rotary jet drill
A high-performance, drill-bit technology, used in construction, sheet pile walls, infrastructure engineering, etc., can solve problems such as inability to meet spray distance, complex working conditions, and inability to guarantee construction quality, and achieve improved construction quality. The effect of improving the construction environment
Pending Publication Date: 2017-05-31
BEIJING ZHONGYAN DADI TECH CO LTD
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Problems solved by technology
[0003] This research and development project overcomes the problems of spraying distance, complex working conditions and construction quality that cannot be satisfied by traditional rotary spraying
Method used
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Embodiment 1
[0026] The method of adopting a kind of high-performance rotary jet drill bit of the present invention, comprises the following steps:
[0027] Step 1) Level the site to achieve "three links and one leveling";
[0028] Step 2) Measure and locate;
[0029] Step 3) Build the construction platform and equipment;
[0030] Step 4) The high-performance jet-jet drill bit is connected with the drilling rig by threads;
[0031] Step 5) The drill bit is rotated and inserted into the soil to reach the design depth;
[0032] Step 6) Cement slurry and compressed gas are ejected from the cement slurry channel and compressed gas channel respectively;
[0033] Step 7) The rotary spraying is lifted to the top of the designed pile to stop lifting;
[0034] Step 8) Pull out the drill pipe from the rotary jet drilling machine and move to the next hole.
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The invention relates to a high-performance rotary jet drill. The high-performance rotary jet drill is mainly used in construction of bridge engineering, municipal engineering, water supply and drainage engineering, tunnel engineering and civil building engineering. The high-performance rotary jet drill comprises a drill pipe, an inner core, a nozzle sleeve, an alloy nozzle, a sealing disc, a seal ring and a drill. The high-performance rotary jet drill has the characteristics that the engineering cost is reduced, the construction period is shortened, and the construction effect is good; the range of cement paste and protective gases is farther at the same pressure, the rotary jet diameter is large, the diameter of the nozzle of the high-performance rotary jet drill is large, the rotary jet range is added, and the construction effect is good; the problems that the jet distance cannot be met, the working conditions are complex and the construction quality cannot be guaranteed through traditional rotary jet are solved; construction is easy, the construction cost is reduced, solidified bodies formed through jet flow are flexible in shape, and various solidification requirements are met; and the design requirements can be met, the construction quality is greatly improved, and the high-performance rotary jet drill has positive significance for improving the construction environment of workers.
Description
technical field [0001] The invention relates to a high-performance jet jet drill bit, which is mainly used in bridge engineering, municipal engineering, water supply and drainage engineering, tunnel engineering and civil construction engineering. Due to the lack of concentration of the protective gas of the traditional rotary jet drill bit, the loss of gas energy at the injection port is relatively serious, which cannot protect the cement slurry injection well. The length of the alloy nozzle is too short, and the injection energy of the cement slurry is lost. In view of the above problems, Develop a high-performance jet-jet drill bit. Background technique [0002] With the development of my country's engineering construction and social economy, the rotary spraying process plays an increasingly important role in foundation pit construction. This construction method is often used in building foundation underpinning, foundation pit engineering of industrial buildings, and water...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D15/04E02D5/34
CPCE02D5/34E02D15/04
Inventor 武思宇李建平李耀晖
Owner BEIJING ZHONGYAN DADI TECH CO LTD
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