Karst area moving water treatment device and method
A water treatment device and technology in karst areas, applied in earthwork drilling, wellbore/well components, sealing/isolation, etc., can solve the problems of slow plugging, difficult construction, waste of slurry, etc., to reduce difficulty and save Construction time, good plugging effect
Pending Publication Date: 2017-07-18
NANCHANG RAILWAY ENG CO LTD OF CHINA RAILWAY 24TH BUREAU GRP CO LTD
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Problems solved by technology
[0003] In order to solve the problems of difficult construction, slow plugging, and large waste of grout during grouting in the existing construction, the present invention provides a dynamic water treatment device and treatment method in karst area, which mainly uses karst dynamic water pressure The principle of balance is used for rapid plugging and grouting of karst flowing water, which greatly reduces the difficulty of construction, has good plugging effect and saves a lot of grout
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Embodiment
[0077] The invention has been implemented on Line 2 of Yan'an Road Station of Guiyang Metro, which is located in a geological section with strong karst and rich water, and the construction is extremely difficult. The invention is applied to the water gushing point of the station, and it takes 2 days to implement it using the traditional technology, consuming 200m of cement slurry 3 , it takes 16 hours and 80m of cement slurry to use this invention 3 The construction effect is remarkable, the water-stop work at this station has all been completed, and the station has also been safely constructed, which shows that the practicability of the invention is obvious. At present, it is being applied to Line 1 station of Yan'an Road Station and other strong karst Fushui stations of Guiyang Metro.
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The invention relates to a karst area moving water treatment device and method. The device comprises a mixing machine, a grouting machine, grouting steel pipes and a hydraulic pressure balance pipe. The mixing machine is connected with the grouting machine. The grouting machine is connected with the multiple grouting steel pipes through grouting pipes. The grouting steel pipes are inserted into an excavated bedrock surface and used for injecting cement grout into karst pipelines. The hydraulic pressure balance pipe is inserted into a karst moving water outlet point in the excavated bedrock surface and used for balancing the hydraulic pressure. Compared with the practice that the grout is directly injected into the karst moving water outlet point, the karst area moving water treatment device and method have the advantages that the construction difficulty is lowered, the construction time is saved, and meanwhile, karst moving water overflowing can be fast stopped. In addition, the grout is greatly saved, the leaking stoppage cost is lowered, and the leaking stoppage effect is good.
Description
technical field [0001] The invention relates to the field of subway construction, in particular to a device and method for treating dynamic water in karst areas. Background technique [0002] Nowadays, karst dynamic water gushing incidents often occur, and there are many methods for karst dynamic water grouting to stop water, but most of them are drilling, lowering grouting pipes, and grouting, and the grouting pipes are all lowered to the bedrock surface. The water at the water gushing point can still gushe out, and the slurry will cause waste. The invention mainly solves the problems that the water at the karst flowing water gushing point will not flow out, the grouting slurry will not be wasted, and fast grouting can be performed to block. Contents of the invention [0003] In order to solve the existing problems of difficult construction, slow plugging, and a large amount of waste caused by grouting during grouting, the present invention provides a dynamic water treat...
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IPC IPC(8): E21B33/13
CPCE21B33/13
Inventor 王均龙中皇孙泽顺张岳王文轩涂文良崔成敬夏伟蒋文国
Owner NANCHANG RAILWAY ENG CO LTD OF CHINA RAILWAY 24TH BUREAU GRP CO LTD
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