CN203949766U - Shield duct piece joint anti-permeability performance test unit - Google Patents

Shield duct piece joint anti-permeability performance test unit Download PDF

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Publication number
CN203949766U
CN203949766U CN201420355853.2U CN201420355853U CN203949766U CN 203949766 U CN203949766 U CN 203949766U CN 201420355853 U CN201420355853 U CN 201420355853U CN 203949766 U CN203949766 U CN 203949766U
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China
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cover plate
test
water
rigid cover
duct piece
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Expired - Lifetime
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CN201420355853.2U
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Chinese (zh)
Inventor
雷明锋
彭立敏
施成华
沈佳佳
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Central South University
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Central South University
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Abstract

The utility model provides a kind of shield duct piece joint anti-permeability performance test unit, comprising: high service system, for press water or liquid are provided; Testing table, for installing test specimen, press water is provided (liquid) action space and the simulation that realizes duct piece connector contact condition; Measurement system, for arranging operating condition of test parameter and measuring process of the test data.Described high service system adopts high pressure resistant flexible pipe to be connected with described testing table; Described measurement system carries out by cable the mode that is arranged on various kinds of sensors on described testing table and is connected with registering instrument, computing machine reading.The utility model can be realized the shield duct piece joint anti-permeability performance test under multiple rubber water-proof bar ageing state, multiple joint contact condition and multiple stress, easy and simple to handle, practical.Can be widely used under water environment or liquid environment, the test of rubber strip sealing performance under short-term load and long-term behaviour detects or research.

Description

Shield duct piece joint anti-permeability performance test unit
Technical field
The utility model relates to field of civil engineering, especially, relates to a kind of shield duct piece joint anti-permeability performance test unit.
Background technology
In shield tunnel, percolating water is the outstanding problem that affects structure of the subway safety and normal operation always, investigation discovery, most of percolating water is all to occur in duct piece connector position, and the antiseepage of joint area is to realize by installing lower two symmetrically arranged joint sealing rods.Visible, the anti-permeability performance of duct piece connector and long-term effectiveness thereof are most important for the normal military service of shield tunnel.And the machine-processed rule of the stress of duct piece connector, anti-permeability performance is very complicated, be difficult to make a breakthrough in theory, need to adopt the method for test to determine.Literature search finds still there is no relevant test unit and equipment at present, therefore be badly in need of the performance for actual loading condition, contact condition and the sealing material of shield tunnel segment joint, researches and develops a set of easy and simple to handle, practical test unit.
Utility model content
The utility model aims to provide a kind of easy and simple to handle, practical shield duct piece joint anti-permeability performance test unit, the technical matters lacking to solve current correlation test device.
For achieving the above object, the utility model provides a kind of shield duct piece joint anti-permeability performance test unit, comprising:
High service system, for providing test pressure water;
Testing table, for the simulation of test specimen being installed, pressure water action space being provided and realizing duct piece connector contact condition;
Measurement system, for arranging operating condition of test parameter and measuring process of the test data;
Described testing table comprises test piece fixing device, and described test piece fixing device is fixedly forming airtight pressure water action space after test specimen, and the top of described test piece fixing device is provided with the press water water inlet that is communicated to pressure water action space;
Described high service system is by the press water water inlet of high pressure resistant flexible pipe joint test platform;
Described measurement system comprises registering instrument and computing machine, and is arranged on strain transducer and pressure transducer on testing table, and described strain transducer, pressure transducer and computing machine communicate to connect by cable and registering instrument respectively.
Described shield duct piece joint anti-permeability performance test unit,
Described high service system comprises supply tank and water pressure engine;
Described supply tank is connected with described water pressure engine by plastic flexible pipe, for water pressure engine provides input water;
Described water pressure engine is connected by high pressure resistant flexible pipe with testing table.
Described shield duct piece joint anti-permeability performance test unit,
The test piece fixing device of described testing table comprises rigid cover plate, stiff baseplate, fastening bolt and band sleeve fastening bolt;
Described rigid cover plate and described stiff baseplate be for be arrangeding in parallel up and down, and vertically through rigid cover plate, be connected with stiff baseplate by described fastening bolt and described band sleeve fastening bolt.
Described shield duct piece joint anti-permeability performance test unit,
Described rigid cover plate is rectangular-shaped, apart from top surface edge 3-5cm place, have equally distributed and fastening bolt and the upper bolt hole of getting through matching with sleeve fastening bolt quantity, zone line has 3 circular ports, lower surface is connecting the side of formed line by rigid cover plate central authorities successively with all upper bolt holes, have a continuous upper groove, for the top connection sealing rod test specimen that needs test is installed.
Described 3 circular ports, wherein above 2 described circular ports, be welded with respectively a circular mouth piece, be respectively used to connect described high pressure resistant flexible pipe and described pressure transducer, another circular port is provided with a sealing bolt, during for pressurization, get rid of the air in testing table cavity, and sealing after emptying.
Described shield duct piece joint anti-permeability performance test unit,
Described stiff baseplate is rectangular-shaped and measure-alike with described rigid cover plate, along surrounding, evenly have and the equal identical lower bolt hole in quantity on rigid cover plate and position, upper surface is connecting the side of formed line by stiff baseplate central authorities successively with all lower bolts hole, have a continuous low groove, between described lower bolt hole and described low groove, be provided with continuous diversion trench;
The low groove of stiff baseplate upper surface is consistent with described upper groove position and width that described rigid cover plate lower surface is carved with, for lower sub sealing rod test specimen is installed;
The top of the madial wall of described diversion trench is domatic to groove inner inclination, the water conservancy diversion slope of diversion trench bottom surface for tilting, has gully-hole at water conservancy diversion slope gradient end, for collecting the percolating water of process of the test, and be welded with hose adapter at described gully-hole place, for connecting plastic flexible pipe.
Described shield duct piece joint anti-permeability performance test unit,
Described fastening bolt comprises for the screw rod through rigid cover plate and stiff baseplate, is arranged at rigid cover plate upper surface for the nut that coordinates screw rod and be fastenedly connected and is arranged at the rigid gasket between rigid cover plate upper surface and nut, is provided with fixedly termination of screw rod for mating fastening bolt in the lower bolt hole of described stiff baseplate;
Described with sleeve fastening bolt comprise for the screw rod through rigid cover plate and stiff baseplate, be arranged at rigid cover plate upper surface for the nut that coordinates screw rod to be fastenedly connected, be arranged at the sleeve of nut below and be arranged at sleeve and nut between rigid gasket;
Described sleeve outer surface is adhesive with strain transducer, for detection of the contact of process of the test center tap sealing rod test specimen.
Described shield duct piece joint anti-permeability performance test unit,
Described measurement system is connected with the described hose adapter at the above gully-hole place of described testing table by plastic flexible pipe, and the other end of described plastic flexible pipe is placed in to the beaker that catchments, for measuring water percolating capacity;
After described top connection sealing rod test specimen and the installation of described lower sub sealing rod test specimen, in its surface of contact position, be adhesive with phenolphthalein test paper, in described test pressure water, be added with the indicator reacting with phenolphthalein test paper, to detect initial time and the percolating water position of percolating water in process of the test.
Described shield duct piece joint anti-permeability performance test unit, described upper bolt hole and lower bolt hole are nose circle shape adjustable bolt hole.
Described shield duct piece joint anti-permeability performance test unit, the long axis of the upper bolt hole end on described rigid cover plate is parallel with the long axis on rigid cover plate surface, and the long axis of the lower bolt hole end on stiff baseplate and the long axis of the upper bolt hole end on rigid cover plate are orthogonal.
Described shield duct piece joint anti-permeability performance test unit, the long axis of the upper bolt hole end on described rigid cover plate is vertical with the long axis on rigid cover plate surface, and the long axis of the lower bolt hole end on stiff baseplate and the long axis of the upper bolt hole end on rigid cover plate are orthogonal.
The utlity model has following beneficial effect:
Shield duct piece joint anti-permeability performance test unit of the present utility model, can realize the shield duct piece joint anti-permeability performance test under multiple rubber water-proof bar ageing state, multiple joint contact condition and multiple stress, easy and simple to handle, practical.Can be widely used under water environment or liquid environment, the test of rubber strip sealing performance under short-term load and long-term behaviour detects or research.
Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is according to the main TV structure schematic diagram of shield duct piece structure anti-permeability performance test unit of the present utility model;
Fig. 2 is that the testing table rigid cover plate in Fig. 1 is overlooked and upward view;
Fig. 3 is that the testing table stiff baseplate in Fig. 1 is overlooked and upward view;
Fig. 4 is testing table facade and the sectional view in Fig. 1;
Fig. 5 is testing table side-looking and the sectional view in Fig. 1.
Description of reference numerals
1, high service system; 11, high pressure resistant flexible pipe; 12, supply tank; 13, pressing machine; 14, plastic flexible pipe; 2, testing table; 21, joint sealing rod test specimen; 211, top connection sealing rod test specimen; 212, lower sub sealing rod test specimen; 22, press water; 23, rigid cover plate; 231, upper bolt hole; 232, circular port; 233, upper groove; 234, mouth piece; 235, sealing bolt; 24, stiff baseplate; 241, lower bolt hole; 242, low groove; 243, diversion trench; 244, domatic; 245, water conservancy diversion slope; 246, gully-hole; 247, hose adapter; 25, fastening bolt; 251, screw rod; 252, nut; 253, rigid gasket; 26, band sleeve fastening bolt; 261, screw rod; 262, nut; 263, rigid gasket; 264, sleeve; 3, measuring system; 31, cable; 32, strain transducer; 33, pressure transducer; 34, Acquisition Instrument; 35, computing machine; 36, plastic flexible pipe; 37, the beaker that catchments; 38, phenolphthalein test paper.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, shield duct piece joint anti-permeability performance test unit of the present utility model, comprising: high service system 1, for test pressure water 22 is provided; Testing table 2, for installing test specimen 21, press water 22 action spaces and the simulation that realizes duct piece connector contact condition being provided; Measurement system 3, for arranging operating condition of test parameter and measuring process of the test data; Described compression system 1 adopts high pressure resistant flexible pipe 11 to be connected with described testing table 2; Described measurement system is connected the strain transducer 32, the pressure transducer 33 that are arranged on described testing table 2 by cable 31 with registering instrument 34, computing machine 35.Shield duct piece joint anti-permeability performance test unit of the present utility model is easy and simple to handle, practical, can realize the experiment test of the shield tunnel joint anti-permeability performance of multiple contact condition.
Particularly, as shown in Figure 1, high service system 1 comprises supply tank 12, water pressure engine 13; In this example implementation process, supply tank 12 is connected with water pressure engine 13 by plastic flexible pipe 14, for process of the test water pressure engine provides input water; Water pressure engine 13 is connected by high pressure resistant flexible pipe 11 with testing table 2.
In the utility model, as shown in Fig. 1~Fig. 5, testing table 2 is comprised of rigid cover plate 23, stiff baseplate 24, fastening bolt 25 and band sleeve fastening bolt 26; Rigid cover plate 23 and stiff baseplate 24, be connected with 4 described band sleeve fastening bolts 26 by 12 described fastening bolts 25.
In this example implementation process, rigid cover plate 23 is rectangle, and surrounding has 16 nose circle shape adjustable bolt holes 231, zone line has 3 circular ports 232, lower surface in 231 inner sides, adjustable bolt hole, has the upper groove 233 of one " U " type along surrounding, for installing joint sealing rod test specimen 211; 3 circular ports 232, wherein 2 circular ports 232 are welded with a circular mouth piece 234 above, are respectively used to connect high pressure resistant flexible pipe 11 and pressure transducer 33, another remaining circular port 232 is when pressurizeing, get rid of the air in testing table cavity, afterwards, then tighten sealing with sealing bolt 235; 16 nose circle shape adjustable bolt holes 231, along rigid cover plate 23 surroundings, be evenly arranged, and its long axis and rigid cover plate 23 long axis are arranged vertically, coordinate with the corresponding nose circle shape bolt hole 241 on stiff baseplate 24, can realize the multiple contact condition fissure of displacement setting of duct piece connector, concrete fissure of displacement amount can adopt vernier caliper measurement to determine.
Further, stiff baseplate 24 is measure-alike with rigid cover plate 23, along surrounding, evenly have 16 nose circle shape adjustable bolt holes 241, upper surface along surrounding in 241 inner sides, described adjustable bolt hole, have the low groove 242 of one " U " type, between adjustable bolt hole 241 and the low groove 242 of " U " type, be provided with the diversion trench 243 of " U " type of arranging along surrounding; 241 positions, 16 nose circle shape adjustable bolt holes are corresponding one by one with 16 nose circle shape adjustable bolt holes 231 on rigid cover plate 23, but arrangement is mutually vertical, can realize the even setting of the different joint contact condition fissure of displacement; Upper groove 233 positions and the width of " U " type that " U " type low groove 242 is carved with rigid cover plate 23 lower surfaces are consistent, for lower sub sealing rod test specimen 212 is installed; " U " type diversion trench 243, it is domatic 244 that madial wall end face is made as, and bottom surface is provided with water conservancy diversion slope 245, at gradient end, have gully-hole 246, for collecting the percolating water of process of the test, and be welded with hose adapter 247 at described gully-hole place, for connecting plastic flexible pipe 36.
Further, fastening bolt 25 is comprised of screw rod 251, nut 252 and rigid gasket 253, and its screw rod is fixedly hidden in described stiff baseplate 24 termination; Band sleeve fastening bolt 26 is comprised of screw rod 261, nut 262, rigid gasket 263 and sleeve 264; Sleeve 264 is installed between rigid gasket 263 and rigid cover plate 23, and outside surface is adhesive with strain transducer 32, for Control experiment process, and the contact of joint sealing rod.By fastening bolt 25 with the adjusting of sleeve fastening bolt 26, coordinate vernier caliper measurement, can realize the control of the joint amount of opening.
In the utility model, as shown in Figure 1, measurement system is connected with the hose adapter 247 at gully-hole 246 places on testing table 2 by plastic flexible pipe 36, and the other end of plastic flexible pipe 36 is placed in to the beaker 37 that catchments, for measuring water percolating capacity; After top connection sealing rod test specimen 211 and 212 installations of lower sub sealing rod test specimen, its surface of contact position is adhesive with phenolphthalein test paper 38, coordinates and makes an addition in advance the indicator in water, for detection of initial time and the percolating water position of percolating water in process of the test.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
1, by the adjustable bolt hole up and down of 16 nose circle shapes on rigid cover plate 23 and stiff baseplate 24, be mutually arranged vertically, can realize the multiple contact condition fissure of displacement setting of duct piece connector, concrete fissure of displacement amount can adopt vernier caliper measurement to determine, easy and simple to handle, practical;
2,, by being adhesive with strain transducer 32 at sleeve 264 outside surfaces, for Control experiment process, the contact of joint sealing rod, has realized the anti-permeability performance test under different shield structure joint stresses;
3, by fastening bolt 25 with the adjusting of sleeve fastening bolt 26, coordinate vernier caliper measurement, can accurately control the amount of opening of joint, realized the anti-permeability performance test under different shield structure joint opening displacement conditions;
4, by the setting of domatic 244 on stiff baseplate 24, water conservancy diversion slope 245, diversion trench 243, leakage in flow event is accurately collected, for the test of different tests operating mode lower sub seepage speed;
5, the phenolphthalein test paper 38 of pasting by top connection sealing rod test specimen 211 and lower sub sealing rod test specimen 212 surface of contact positions, coordinates and makes an addition in advance the indicator in water, has realized the initial time of percolating water and the detection of percolating water position in process of the test.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. a shield duct piece joint anti-permeability performance test unit, is characterized in that, comprising:
High service system (1), for providing test pressure water (22);
Testing table (2), for installing test specimen (21), press water (22) action space and the simulation that realizes duct piece connector contact condition being provided;
Measurement system (3), for arranging operating condition of test parameter and measuring process of the test data;
Described testing table (2) comprises test piece fixing device, and described test piece fixing device is fixedly forming airtight pressure water action space after test specimen, and the top of described test piece fixing device is provided with the press water water inlet that is communicated to pressure water action space;
Described high service system (1) is by the press water water inlet of high pressure resistant flexible pipe (11) joint test platform (2);
Described measurement system comprises registering instrument (34) and computing machine (35), and being arranged on strain transducer (32) and the pressure transducer (33) on testing table, described strain transducer (32), pressure transducer (33) and computing machine are respectively by cable (31) and registering instrument (34) communication connection.
2. shield duct piece joint anti-permeability performance test unit according to claim 1, is characterized in that,
Described high service system (1) comprises supply tank (12) and water pressure engine (13);
Described supply tank (12) is connected with described water pressure engine (13) by plastic flexible pipe (14), for water pressure engine provides input water;
Described water pressure engine (13) is connected by high pressure resistant flexible pipe (11) with testing table (2).
3. shield duct piece joint anti-permeability performance test unit according to claim 1, is characterized in that,
The test piece fixing device of described testing table (2) comprises rigid cover plate (23), stiff baseplate (24), fastening bolt (25) and band sleeve fastening bolt (26);
Described rigid cover plate (23) and described stiff baseplate (24) be for be arrangeding in parallel up and down, and vertically through rigid cover plate (23), be connected with stiff baseplate (24) by described fastening bolt (25) and described band sleeve fastening bolt (26).
4. shield duct piece joint anti-permeability performance test unit according to claim 3, is characterized in that,
Described rigid cover plate (23) is rectangular-shaped, the upper bolt hole of getting through (231) that has equally distributed and fastening bolt (25) apart from top surface edge 3-5cm place and match with sleeve fastening bolt quantity, zone line has 3 circular ports (232), lower surface is connecting the side of formed line by rigid cover plate central authorities successively with all upper bolt holes (231), have a continuous upper groove (233), for the top connection sealing rod test specimen (211) that needs test is installed
Described 3 circular ports (232), wherein 2 described circular ports (232) are welded with respectively a circular mouth piece (234) above, be respectively used to connect described high pressure resistant flexible pipe (11) and described pressure transducer (33), another circular port (232) is provided with a sealing bolt (235), during for pressurization, get rid of the air in testing table cavity, and sealing after emptying.
5. shield duct piece joint anti-permeability performance test unit according to claim 3, is characterized in that,
Described stiff baseplate (24) is rectangular-shaped and measure-alike with described rigid cover plate (23), along surrounding, evenly have and the equal identical lower bolt hole (241) in rigid cover plate (23) upper bolt hole (231) quantity and position, upper surface is connecting the side of formed line by stiff baseplate central authorities successively with all lower bolts hole (241), have a continuous low groove (242), between described lower bolt hole (241) and described low groove (242), be provided with continuous diversion trench (243);
The low groove (242) of stiff baseplate (24) upper surface is consistent with described upper groove (233) position and width that described rigid cover plate (23) lower surface is carved with, for lower sub sealing rod test specimen (212) is installed;
The top of the madial wall of described diversion trench (243) is domatic (244) to groove inner inclination, the water conservancy diversion slope (245) of diversion trench bottom surface for tilting, on water conservancy diversion slope (245), gradient end has gully-hole (246), for collecting the percolating water of process of the test, and be welded with hose adapter (247) at described gully-hole place, for connecting plastic flexible pipe (36).
6. shield duct piece joint anti-permeability performance test unit according to claim 3, is characterized in that,
Described fastening bolt (25) comprises for the screw rod (251) through rigid cover plate (23) and stiff baseplate (24), be arranged at rigid cover plate (23) upper surface is used for coordinating the nut (252) that screw rod is fastenedly connected and is arranged at the rigid gasket (253) between rigid cover plate (23) upper surface and nut, is provided with fixedly termination of screw rod for mating fastening bolt in the lower bolt hole of described stiff baseplate (24);
Described band sleeve fastening bolt (26) comprise for the screw rod (261) through rigid cover plate (23) and stiff baseplate (24), be arranged at rigid cover plate (23) upper surface for the nut (262) that coordinates screw rod to be fastenedly connected, be arranged at the sleeve (264) below nut (262) and be arranged at the rigid gasket (263) between sleeve (264) and nut;
Described sleeve (264) outside surface is adhesive with strain transducer (32), for detection of the contact of process of the test center tap sealing rod test specimen.
7. shield duct piece joint anti-permeability performance test unit according to claim 1, is characterized in that,
The described hose adapter (247) that described measurement system is located with the above gully-hole of described testing table (2) (246) by plastic flexible pipe (36) is connected, and the other end of described plastic flexible pipe (36) is placed in to the beaker that catchments (37), for measuring water percolating capacity;
After described top connection sealing rod test specimen (211) and described lower sub sealing rod test specimen (212) installation, in its surface of contact position, be adhesive with phenolphthalein test paper (38), in described test pressure water (22), be added with the indicator reacting with phenolphthalein test paper, to detect initial time and the percolating water position of percolating water in process of the test.
8. according to the shield duct piece joint anti-permeability performance test unit described in claim 4 or 5, it is characterized in that, described upper bolt hole and lower bolt hole are nose circle shape adjustable bolt hole.
9. shield duct piece joint anti-permeability performance test unit according to claim 8, it is characterized in that, the long axis of the upper bolt hole on described rigid cover plate (231) end is parallel with the long axis on rigid cover plate surface, and the long axis of the long axis of the lower bolt hole end on stiff baseplate and the upper bolt hole on rigid cover plate (231) end is orthogonal.
10. shield duct piece joint anti-permeability performance test unit according to claim 8, it is characterized in that, the long axis of the upper bolt hole on described rigid cover plate (231) end is vertical with the long axis on rigid cover plate surface, and the long axis of the long axis of the lower bolt hole end on stiff baseplate and the upper bolt hole on rigid cover plate (231) end is orthogonal.
CN201420355853.2U 2014-06-30 2014-06-30 Shield duct piece joint anti-permeability performance test unit Expired - Lifetime CN203949766U (en)

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Application Number Priority Date Filing Date Title
CN201420355853.2U CN203949766U (en) 2014-06-30 2014-06-30 Shield duct piece joint anti-permeability performance test unit

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Application Number Priority Date Filing Date Title
CN201420355853.2U CN203949766U (en) 2014-06-30 2014-06-30 Shield duct piece joint anti-permeability performance test unit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075854A (en) * 2014-06-30 2014-10-01 中南大学 Shield segment joint anti-penetrability performance test device
CN108562402A (en) * 2018-03-07 2018-09-21 西南交通大学 A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075854A (en) * 2014-06-30 2014-10-01 中南大学 Shield segment joint anti-penetrability performance test device
CN104075854B (en) * 2014-06-30 2017-02-15 中南大学 Shield segment joint anti-penetrability performance test device
CN108562402A (en) * 2018-03-07 2018-09-21 西南交通大学 A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig

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