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Simple experimental device and method for slurry osmosis film formation

An experimental device and film-forming technology, applied in the direction of measuring device, permeability/surface area analysis, instrument, etc., can solve the problems of not many, long selection time, etc., and achieve the effect of clear function, optimized mud ratio, and convenient use

Inactive Publication Date: 2019-08-20
STATE KEY LAB OF SHIELD & TUNNELING TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic test equipment for mud infiltration formations is relatively large, and it takes a long time to complete the mud infiltration formation and obtain the effect comparison of multiple sets of mud infiltration formations, resulting in few relevant conclusions about mud infiltration film formation

Method used

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  • Simple experimental device and method for slurry osmosis film formation

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 As shown, a simple experimental device for mud infiltration and film formation includes an experimental system and a pressurization system arranged on one side of the experimental system; the experimental system includes a support frame with a crossbeam inside, and a An experimental cylinder, and a measuring cylinder arranged below the experimental cylinder; the experimental cylinder includes a lower end cap fixedly arranged on the beam, a transparent cylinder screwed to the lower end cap, and a transparent cylinder screwed to the upper end of the transparent cylinder upper top cover; a scale line is provided on the outside of the transparent cylinder, and the transparent cylinder is made of transparent material; The water hole, the water loss hole coincides with the central axis of the measuring cylinder; grooves are respective...

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Abstract

The invention discloses a simple experimental device for slurry osmosis film formation. The device comprises an experimental system and a pressurization system arranged on one side of the experimentalsystem. The experimental system comprises a support frame with a beam inside, an experimental tube which is arranged on the beam, and a measuring cylinder which is arranged under the experimental tube. The experimental tube comprises a lower end cover fixedly arranged on the beam, a transparent tube in screwed connection with the lower end cover, and an upper top cover which is screwed with the upper end of the transparent tube. The upper top cover is provided with a vent hole. The lower top cover is provided with a water loss hole. The invention further comprises a simple experimental methodfor slurry osmosis film formation. According to the invention, the device and the method have the advantages of simple structure and convenient use, can effectively measure the film thickness and water filtration volume of slurry to the formation layer, realize optimization of reasonable slurry ratio of the formation layer, and are used for evaluating the adaptability of slurry to various formation conditions.

Description

technical field [0001] The invention relates to the technical field of tunnel and underground engineering testing equipment, in particular to a simple experimental device and method for mud permeation and film formation. Background technique [0002] In recent years, mud-water balance shields have been widely used in complex geological environments such as crossing rivers and seas. The mud-water balance shield balances the water and soil pressure of the excavation surface formation by adjusting the mud pressure in the pressure chamber. Since the mud pressure is greater than the pore water pressure of the formation, the fine particles in the mud permeate into the formation under the action of the pressure difference to form an impermeable mud film. , thus playing the role of stabilizing the formation. Therefore, the permeability and film formation characteristics of mud to the formation are directly related to the stability of mud-water balance shield tunneling. [0003] Ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04G01N15/08
CPCG01N13/04G01N15/0806G01N15/0826
Inventor 孙振川杨振兴李凤远张兵陈瑞祥冯欢欢游永锋吕乾乾孙飞祥韩伟锋唐纵雄姜育恒董祥宽郝超超孙振中
Owner STATE KEY LAB OF SHIELD & TUNNELING TECH
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