CN102507163A - Test loading device for shield tunneling machine under high water pressure - Google Patents
Test loading device for shield tunneling machine under high water pressure Download PDFInfo
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- CN102507163A CN102507163A CN2011103042055A CN201110304205A CN102507163A CN 102507163 A CN102507163 A CN 102507163A CN 2011103042055 A CN2011103042055 A CN 2011103042055A CN 201110304205 A CN201110304205 A CN 201110304205A CN 102507163 A CN102507163 A CN 102507163A
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Abstract
The invention discloses a test loading device for a shield tunneling machine under high water pressure, which is applied in a full-section tunneling machine industry. The test loading device comprises a slurry stoste tank, a first stirring device, a manual ball valve, a shock absorption throat, a slurry pump, a loading test pressure container, a maintenance manhole, an air compressor, a gas safety valve, a pressure sensor, a blowoff valve and the like, wherein the first stirring device is arranged above the slurry stoste tank; the slurry stoste tank is connected with the manual ball valve through a steel tube; the manual ball valve is connected with the shock absorption throat through a welding flange type steel tube; the inlet and the outlet of the slurry pump are connected with the shock absorption throat respectively; one end of the safety valve is connected with the outlet of the shock absorption throat through a pipeline, and the other end of the safety valve is communicated with the slurry tank through a steel tube; a checking valve is connected with a slurry injection pipeline; the other end of the checking valve is connected with the manual ball valve through a steel tube; and the blowoff valve is connected together with the pressure container through a pipeline. The test loading device has a novel structure; any pressure can be applied to a slurry cabin; cutters can be changed under normal pressure; and the device can be used for a main bearing sealing test and a tail sealing test.
Description
Technical field
The present invention relates to the experiment loading unit of normal pressure tool changing in the shield tunnel driving technology field, The Seal Technology Study.
Background technology
At present, along with the fast development of national economic development, the characteristics of current shield tunnel driving technology are high hydraulic pressure, long distance, large diameter trend.In the tunneling process of long distance; The wearing and tearing of cutter and destruction are the problems that must consider; Be not difficult to find out this point from present length apart from (Tokyo Bay roads and tunnels engineering, Shanghai Changjiang River tunnel engineering etc.) the constructing tunnel case, under high hydraulic condition, it is particularly important that tool changing just seems so.Usually in practice of construction, the tool changing device under the high hydraulic pressure, the reliability of its moving component, sealing are critical technical problems, have only the testing and verification through repeatedly just can solve.When considering simultaneously to construct in high hydraulic pressure locations such as the Fu Shui location and the bottoms; The waterproof in tunnel is the key of shield construction; Guarantee so how that cutter spindle holds, the performance of the hinged sealing of shield structure, tail sealing device of shield reaches the requirement in high hydraulic pressure location; Then have only method, select the greasing medium of suitable encapsulant, O-ring seal shape, seal form and dependable performance could satisfy the requirement of high hydraulic pressure through test.Therefore the experiment loading unit of developing shield machine under a kind of high hydraulic pressure is a new problem of being badly in need of solution.
Summary of the invention
The experiment loading unit that the purpose of this invention is to provide shield machine under a kind of high hydraulic pressure; It is the experiment loading unit that is used for tool changing under the high hydraulic pressure, main bearing sealing, shield tail sealing usefulness; It can be simulated shield machine effectively and in practice of construction, under high mud hydraulic pressure, the different soil layer geologic condition construction environment, carry out the working condition of cutterhead tool changing, main bearing sealing, the sealing of shield tail.
The objective of the invention is to realize like this: the experiment loading unit of shield machine under a kind of high hydraulic pressure; Form with pressure vessel, maintenance manhole, air compressor, stop valve, tensimeter, gas safety valve, pressure transducer, vent valve, second stirring apparatus, welded type flange, pressure-bearing dividing plate, blowoff valve by mud original fluid container, first stirring apparatus, manual ball valve, compensator, steam piano, safety valve, pipeline, retaining valve, densitometer, electromagnetic flowmeter, load test; First stirring apparatus is installed the top with the mud original fluid container; The mud original fluid container is connected with manual ball valve through steel pipe; Manual ball valve is connected through welding flange formula steel pipe with compensator; Steam piano is imported and exported and is connected compensator respectively, and an end of safety valve links to each other with the outlet of compensator through pipeline, and the other end is communicated with mud tank through steel pipe; Retaining valve is connected with the injection hydraulic fill pipeline; The other end connects manual ball valve through steel pipe, and manual ball valve is connected with densitometer, electromagnetic flowmeter respectively more successively, is connected to load test with on the pressure vessel through pipeline then; The maintenance manhole is housed on the pressure vessel; The exhausr port of air compressor is equipped with stop valve, and stop valve is connected through pipeline with pressure vessel and tensimeter is installed on pipeline, and the pressure-bearing dividing plate is divided into two parts with pressure vessel; The left side is air-cushion type gas boosting cabin; The right side is blending agent storage Laboratory Modules such as muddy water, sand, gravel, and gas safety valve and pressure transducer are installed in the pressure vessel top and near air compressor machine gas boosting cabin one side, the vent valve and second stirring apparatus are installed in the top of blending agent storage Laboratory Module; Flange and pressure vessel weld together, and blowoff valve then links together through pipeline and pressure vessel; The principle of work of said device is that flange should cooperate the formation closed container with other experimental facilitiess before test, guarantees the sealing and the integrality of pressure vessel, tests the loading element connection simultaneously and finishes, and possesses test condition; Begin action, manual ball valve is in open mode, and manual ball valve is in closed condition simultaneously; Stirring apparatus is in running order, at this moment starts steam piano, and mud stoste is passed through in the pipeline injection pressure container from mud tank; Whether the density of densitometer detection at any time mud stoste reaches designing requirement, and electromagnetic flowmeter then shows the instantaneous delivery and the integrated flux of mud at any time, stops steam piano when reaching the setting value of requirement of experiment; The general mud of setting in the injection pressure container accounts for 2/3 of pressure vessel volume and gets final product; Starter motor is started working stirring apparatus then, and opens air compressor and stop valve, makes in the air cushion cabin of the pressure gas injection pressure container with certain pressure; The pressure of tensimeter detection at any time pressure gas; Simultaneously pressure transducer feeds back to operating personnel with the pressure signal in the pressure vessel, and air compressor machine quits work when reaching the force value that testing requirements sets, and the gas safety valve plays the effect of overload protection; After treating off-test; Blowoff valve is opened, outside impurity discharge pressure containers such as sewage, so the experiment loading unit of shield machine can be used for the device of the sealing of tool changing under the high hydraulic pressure, main bearing, shield tail sealing usefulness under the high hydraulic pressure; Can simulate shield machine effectively in practice of construction under high mud hydraulic pressure, the different soil layer geologic condition construction environment, the working condition of cutterhead tool changing, main bearing sealing, the sealing of shield tail.
Main points of the present invention are its structure and principle of work.Its principle of work is that flange should cooperate the formation closed container with other experimental facilitiess before test, guarantees the sealing and the integrality of pressure vessel, tests the loading element connection simultaneously and finishes, and possesses test condition; Begin action, manual ball valve is in open mode, and manual ball valve is in closed condition simultaneously; Stirring apparatus is in running order, at this moment starts steam piano, and mud stoste is passed through in the pipeline injection pressure container from mud tank; Whether the density of densitometer detection at any time mud stoste reaches designing requirement, and electromagnetic flowmeter then shows the instantaneous delivery and the integrated flux of mud at any time, stops steam piano when reaching the setting value of requirement of experiment; The general mud of setting in the injection pressure container accounts for 2/3 of pressure vessel volume and gets final product; Starter motor is started working stirring apparatus then, and opens air compressor and stop valve, makes in the air cushion cabin of the pressure gas injection pressure container with certain pressure; The pressure of tensimeter detection at any time pressure gas; Simultaneously pressure transducer feeds back to operating personnel with the pressure signal in the pressure vessel, and air compressor machine quits work when reaching the force value that testing requirements sets, and the gas safety valve plays the effect of overload protection; After treating off-test; Blowoff valve is opened, outside impurity discharge pressure containers such as sewage, so the experiment loading unit of shield machine can be used for the device of the sealing of tool changing under the high hydraulic pressure, main bearing, shield tail sealing usefulness under the high hydraulic pressure; Can simulate shield machine effectively in practice of construction under high mud hydraulic pressure, the different soil layer geologic condition construction environment, the working condition of cutterhead tool changing, main bearing sealing, the sealing of shield tail.
The experiment loading unit of shield machine compared with prior art under the high hydraulic pressure; Have novel structure, in pressure limit, combine the pressure that the requirement of test can any given muddy water cabin and can carry out advantages such as normal pressure tool changing, main bearing sealing, shield tail leakage test, will be widely used in the tunnel boring machine industry.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
Fig. 1 is a structural principle synoptic diagram of the present invention.
Embodiment
With reference to accompanying drawing; The experiment loading unit of shield machine under a kind of high hydraulic pressure; Form with pressure vessel 11, maintenance manhole 12, air compressor 13, stop valve 14, tensimeter 15, gas safety valve 16, pressure transducer 17, vent valve 18, second stirring apparatus 19, welded type flange 20, pressure-bearing dividing plate 21, blowoff valve 22 by mud original fluid container 1, first stirring apparatus 2, manual ball valve 3, compensator 4, steam piano 5, safety valve 6, pipeline 7, retaining valve 8, densitometer 9, electromagnetic flowmeter 10, load test; First stirring apparatus 2 is installed the top with mud original fluid container 1; Mud original fluid container 1 is connected with manual ball valve 3 through steel pipe; Manual ball valve 3 is connected through welding flange formula steel pipe with compensator 4; Steam piano 5 is imported and exported and is connected compensator 4 respectively, and an end of safety valve 6 links to each other with the outlet of compensator 4 through pipeline 7, and the other end is communicated with mud tank 1 through steel pipe; Retaining valve 8 is connected with injection hydraulic fill pipeline 7; The other end connects manual ball valve 3 through steel pipe, and manual ball valve 3 is connected with densitometer 9, electromagnetic flowmeter 10 respectively more successively, is connected to load test with on the pressure vessel 11 through pipeline then; Maintenance manhole 12 is housed on the pressure vessel 11; The exhausr port of air compressor 13 is equipped with stop valve 14, and stop valve 14 is connected through pipeline with pressure vessel 11 and tensimeter 15 is installed on pipeline, and pressure-bearing dividing plate 21 is divided into two parts with pressure vessel 11; The left side is air-cushion type gas boosting cabin; The right side is blending agent storage Laboratory Modules such as muddy water, sand, gravel, and gas safety valve 16 is installed in the pressure vessel top with pressure transducer 17 and near air compressor machine 13 gas boosting cabins one side, the vent valve 18 and second stirring apparatus 19 are installed in the top of blending agent storage Laboratory Module; Flange 20 welds together with pressure vessel 11, and 22 of blowoff valves link together through pipeline and pressure vessel 11; The principle of work of said device is that flange 20 should cooperate the formation closed container with other experimental facilitiess before test, guarantees the sealing and the integrality of pressure vessel, tests the loading element connection simultaneously and finishes, and possesses test condition; Begin action, manual ball valve 3 is in open mode, and manual ball valve 22 is in closed condition simultaneously; Stirring apparatus 2 is in running order, at this moment starts steam piano 5, and mud stoste is passed through in the pipeline injection pressure container 11 from mud tank 1; Whether the density of densitometer 9 detection at any time mud stostes reaches designing requirement, and 10 of electromagnetic flowmeters show the instantaneous delivery and the integrated flux of mud at any time, stops steam piano 5 when reaching the setting value of requirement of experiment; The general mud of setting in the injection pressure container 11 accounts for 2/3 of pressure vessel 11 volumes and gets final product; Starter motor is started working stirring apparatus 19 then, and opens air compressor 13 and stop valve 14, makes in the air cushion cabin of the pressure gas injection pressure container 11 with certain pressure; The pressure of tensimeter 15 detection at any time pressure gass; Simultaneously pressure transducer feeds back to operating personnel with the pressure signals in the pressure vessel 11, and air compressor machine 13 quits work when reaching the force value that testing requirements sets, and gas safety valve 17 plays the effect of overload protection; After treating off-test; Blowoff valve 22 is opened, outside impurity discharge pressure containers 11 such as sewage, so the experiment loading unit of shield machine can be used for the device of the sealing of tool changing under the high hydraulic pressure, main bearing, shield tail sealing usefulness under the high hydraulic pressure; Can simulate shield machine effectively in practice of construction under high mud hydraulic pressure, the different soil layer geologic condition construction environment, the working condition of cutterhead tool changing, main bearing sealing, the sealing of shield tail.
Make further specific descriptions in the face of the present invention down: the experiment loading unit of shield machine under the high hydraulic pressure, the connected mode of whole device is following: the effect of stirring apparatus 2: startup stirring motor stirred slurry stoste regularly; Utilize steam piano 5 that mud stoste is transported in the pressure vessel 11, compensator 4 plays damping, shock proof effect, when manual ball valve 3 is in open mode, starts steam piano, and then mud stoste will sucking-off from mud tank 1.Safety valve 6 plays the effect of overload protection, and mud stoste will be got back to the mud tank 1 from safety valve 6 in case pressure surpasses setting value.Retaining valve 8 plays and prevents that the mud suck-back from damaging the effect of steam piano 5, and densitometer 9 and electromagnetic flowmeter 10 are measured the density and the flow of mud stoste respectively.Tool changing pressure vessel 11 is equipped with maintenance manhole 12, is used for the inner fault of maintenance container, and is easy and simple to handle, quick, tensimeter 15 is installed, at any time the variation of 11 li compression pressures of viewing test on-load pressure container on the connecting line of pressure vessel 11.Gas safety valve 16 and pressure transducer 17 are installed in above the pressure vessel and near air compressor machine 13 gas boosting cabins one side; Pressure-bearing dividing plate 21 is divided into two parts with pressure vessel 11; The left side is air-cushion type gas boosting cabin, and the right side is blending agent storage Laboratory Modules such as muddy water, sand, gravel.Vent valve 18 is installed in the top of blending agent storage Laboratory Module, plays the effect of emission gases, and 22 of blowoff valves are used for the drainage of impurity such as sewage to be handled.The major function of whole device: flange 20 and other experimental facilitiess through be connected, under the prerequisite of good seal; Utilize steam piano 5 that mud stoste is squeezed into pressure vessel 11 dividing plate the place aheads; Mix with sand, the gravel put into before the test; Play the effect of different geology operating modes in the simulation practice of construction; Utilize air compressor 13 to charge into pressure gas then, be used to simulate the air cushion pressurization principle of gas cushion type mud water shield structure, to satisfy the technical requirement of practice of construction to the air cushion cabin of pressure vessel 11 dividing plates side.
Claims (2)
1. the experiment loading unit of shield machine under the high hydraulic pressure; Form with pressure vessel, maintenance manhole, air compressor, stop valve, tensimeter, gas safety valve, pressure transducer, vent valve, second stirring apparatus, welded type flange, pressure-bearing dividing plate, blowoff valve by mud original fluid container, first stirring apparatus, manual ball valve, compensator, steam piano, safety valve, pipeline, retaining valve, densitometer, electromagnetic flowmeter, load test; It is characterized in that: first stirring apparatus is installed the top with the mud original fluid container; The mud original fluid container is connected with manual ball valve through steel pipe; Manual ball valve is connected through welding flange formula steel pipe with compensator; Steam piano is imported and exported and is connected compensator respectively, and an end of safety valve links to each other with the outlet of compensator through pipeline, and the other end is communicated with mud tank through steel pipe; Retaining valve is connected with the injection hydraulic fill pipeline; The other end connects manual ball valve through steel pipe, and manual ball valve is connected with densitometer, electromagnetic flowmeter respectively more successively, is connected to load test with on the pressure vessel through pipeline then; The maintenance manhole is housed on the pressure vessel; The exhausr port of air compressor is equipped with stop valve, and stop valve is connected through pipeline with pressure vessel and tensimeter is installed on pipeline, and the pressure-bearing dividing plate is divided into two parts with pressure vessel; The left side is air-cushion type gas boosting cabin; The right side is blending agent storage Laboratory Modules such as muddy water, sand, gravel, and gas safety valve and pressure transducer are installed in the pressure vessel top and near air compressor machine gas boosting cabin one side, the vent valve and second stirring apparatus are installed in the top of blending agent storage Laboratory Module; Flange and pressure vessel weld together, and blowoff valve then links together through pipeline and pressure vessel.
2. the experiment loading unit of shield machine under the high hydraulic pressure according to claim 1; It is characterized in that: the principle of work of said device is that flange should cooperate the formation closed container with other experimental facilitiess before test; Guarantee the sealing and the integrality of pressure vessel; Test the loading element connection simultaneously and finish, possess test condition; Begin action, manual ball valve is in open mode, and manual ball valve is in closed condition simultaneously; Stirring apparatus is in running order, at this moment starts steam piano, and mud stoste is passed through in the pipeline injection pressure container from mud tank; Whether the density of densitometer detection at any time mud stoste reaches designing requirement, and electromagnetic flowmeter then shows the instantaneous delivery and the integrated flux of mud at any time, stops steam piano when reaching the setting value of requirement of experiment; The general mud of setting in the injection pressure container accounts for 2/3 of pressure vessel volume and gets final product; Starter motor is started working stirring apparatus then, and opens air compressor and stop valve, makes in the air cushion cabin of the pressure gas injection pressure container with certain pressure; The pressure of tensimeter detection at any time pressure gas; Simultaneously pressure transducer feeds back to operating personnel with the pressure signal in the pressure vessel, and air compressor machine quits work when reaching the force value that testing requirements sets, and the gas safety valve plays the effect of overload protection; After treating off-test; Blowoff valve is opened, outside impurity discharge pressure containers such as sewage, so the experiment loading unit of shield machine can be used for the device of the sealing of tool changing under the high hydraulic pressure, main bearing, shield tail sealing usefulness under the high hydraulic pressure; Can simulate shield machine effectively in practice of construction under high mud hydraulic pressure, the different soil layer geologic condition construction environment, the working condition of cutterhead tool changing, main bearing sealing, the sealing of shield tail.
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| CN2011103042055A CN102507163A (en) | 2011-10-10 | 2011-10-10 | Test loading device for shield tunneling machine under high water pressure |
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| CN2011103042055A CN102507163A (en) | 2011-10-10 | 2011-10-10 | Test loading device for shield tunneling machine under high water pressure |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105300603A (en) * | 2015-10-27 | 2016-02-03 | 上海隧道工程有限公司 | Sealing performance testing device of shield tail of rectangular-like shield tunneling machine |
| CN105866337A (en) * | 2016-04-21 | 2016-08-17 | 河海大学 | Device and method for testing slurry shield excavation surface mud film formation and mud film air tightness under high pressure |
| CN106197993A (en) * | 2016-09-18 | 2016-12-07 | 中铁工程装备集团有限公司 | Shield machine linkwork sealing property tester and test method |
| CN106225996A (en) * | 2016-09-18 | 2016-12-14 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN106226003A (en) * | 2016-09-27 | 2016-12-14 | 中铁工程装备集团有限公司 | Shield machine shield ventral brush sealing property tester and test method |
| CN107065954A (en) * | 2017-06-19 | 2017-08-18 | 大连海事大学 | A kind of deepwater high-pressure analogue means |
| CN107063661A (en) * | 2017-03-30 | 2017-08-18 | 中铁工程装备集团有限公司 | Adjustable spray head washout test device |
| CN109632288A (en) * | 2019-01-11 | 2019-04-16 | 沈阳工业大学 | Divide the experimental provision of chamber pressure detection sealing performance |
| CN109779646A (en) * | 2019-03-29 | 2019-05-21 | 中国铁建重工集团有限公司 | A kind of simulation tool changing device |
| CN110146223A (en) * | 2019-05-31 | 2019-08-20 | 中交第二航务工程局有限公司 | Shield machine pressure sensor calibrating device and method |
| CN110206551A (en) * | 2019-05-27 | 2019-09-06 | 北京交通大学 | The device and method that slurry-water balance type shield prototype muddy water circulation can be achieved |
| CN110394894A (en) * | 2018-04-25 | 2019-11-01 | 中南大学 | A kind of major diameter slurry shield machine blender performance simulation experimental provision |
| CN111473923A (en) * | 2020-05-15 | 2020-07-31 | 上海隧道工程有限公司 | Normal-pressure cutter inspection device and method for shield machine |
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| CN105300603B (en) * | 2015-10-27 | 2017-09-29 | 上海隧道工程有限公司 | The testing equipment of class rectangle shield tail sealing performance |
| CN105300603A (en) * | 2015-10-27 | 2016-02-03 | 上海隧道工程有限公司 | Sealing performance testing device of shield tail of rectangular-like shield tunneling machine |
| CN105866337A (en) * | 2016-04-21 | 2016-08-17 | 河海大学 | Device and method for testing slurry shield excavation surface mud film formation and mud film air tightness under high pressure |
| CN106225996B (en) * | 2016-09-18 | 2018-08-17 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN106225996A (en) * | 2016-09-18 | 2016-12-14 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN106197993B (en) * | 2016-09-18 | 2018-08-17 | 中铁工程装备集团有限公司 | Shield machine linkwork sealing property tester and test method |
| CN106197993A (en) * | 2016-09-18 | 2016-12-07 | 中铁工程装备集团有限公司 | Shield machine linkwork sealing property tester and test method |
| CN106226003A (en) * | 2016-09-27 | 2016-12-14 | 中铁工程装备集团有限公司 | Shield machine shield ventral brush sealing property tester and test method |
| CN107063661A (en) * | 2017-03-30 | 2017-08-18 | 中铁工程装备集团有限公司 | Adjustable spray head washout test device |
| CN107063661B (en) * | 2017-03-30 | 2023-04-07 | 中铁工程装备集团有限公司 | Adjustable nozzle scouring test device |
| CN107065954A (en) * | 2017-06-19 | 2017-08-18 | 大连海事大学 | A kind of deepwater high-pressure analogue means |
| CN110394894A (en) * | 2018-04-25 | 2019-11-01 | 中南大学 | A kind of major diameter slurry shield machine blender performance simulation experimental provision |
| CN110394894B (en) * | 2018-04-25 | 2020-12-11 | 中南大学 | Performance simulation experiment device for stirrer of large-diameter slurry shield machine |
| CN109632288A (en) * | 2019-01-11 | 2019-04-16 | 沈阳工业大学 | Divide the experimental provision of chamber pressure detection sealing performance |
| CN109632288B (en) * | 2019-01-11 | 2024-02-27 | 沈阳工业大学 | Experimental device for divide chamber to exert pressure and detect sealing performance |
| CN109779646A (en) * | 2019-03-29 | 2019-05-21 | 中国铁建重工集团有限公司 | A kind of simulation tool changing device |
| CN109779646B (en) * | 2019-03-29 | 2024-02-02 | 中国铁建重工集团股份有限公司 | Analog tool changing device |
| CN110206551A (en) * | 2019-05-27 | 2019-09-06 | 北京交通大学 | The device and method that slurry-water balance type shield prototype muddy water circulation can be achieved |
| CN110146223A (en) * | 2019-05-31 | 2019-08-20 | 中交第二航务工程局有限公司 | Shield machine pressure sensor calibrating device and method |
| CN110146223B (en) * | 2019-05-31 | 2022-03-11 | 中交第二航务工程局有限公司 | Shield tunneling machine pressure sensor calibration device and method |
| CN111473923A (en) * | 2020-05-15 | 2020-07-31 | 上海隧道工程有限公司 | Normal-pressure cutter inspection device and method for shield machine |
| CN111473923B (en) * | 2020-05-15 | 2022-06-28 | 上海隧道工程有限公司 | Normal-pressure cutter inspection device and method for shield tunneling machine |
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Application publication date: 20120620 |