CN201915970U - Draining type segment lining model test box - Google Patents
Draining type segment lining model test box Download PDFInfo
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- CN201915970U CN201915970U CN2011200009597U CN201120000959U CN201915970U CN 201915970 U CN201915970 U CN 201915970U CN 2011200009597 U CN2011200009597 U CN 2011200009597U CN 201120000959 U CN201120000959 U CN 201120000959U CN 201915970 U CN201915970 U CN 201915970U
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Abstract
A draining type segment lining model test box comprises a box body (1), an inner model (3) consisting of a round PVC (polyvinyl chloride) tube is disposed longitudinally in the box body (1), inner model drain holes (3a) are arranged on the lower portion of the inner model (3), a water outlet end of the inner model (3) extends out of the side wall of the box body (1), a water storage container (8) is disposed below the water outlet end of the inner model (3), a steel outer model (2) is sleeved outside the inner model (3), outer model drain holes (2a) are arranged on the periphery of the outer model (2) at the same position as that of the inner model drain holes, number of the inner model drain holes (3a) is smaller than or equal to that of the outer model drain holes (2a),and each of the inner model drain holes (3a) is aligned with the corresponding outer model drain hole (2a). By using the test box, test operation is simple, test cycle is short, test data accuracy is high and test reliability is fine, and further, more effective, reliable and accurate test data can be provided for shield tunnel design and construction and safety and economy of a tunnel can be guaranteed better.
Description
Technical field
The utility model relates to the pipe-plate lining model test equipment that shield tunnel is used, and relates in particular to a kind of sluicing formula pipe-plate lining model testing case.
Background technology
Adopting sluicing formula pipe-plate lining model testing case to carry out the test of indoor model pore water pressure, is a kind of important means of research sluicing formula pipe-plate lining to the influence of country rock pore water pressure and vent flow.
Existing sluicing formula pipe-plate lining model testing case, the casing that comprises airtight pressure-bearing, the sidewall of casing is stretched out in the water side that the bottom that is vertically arranged with tunnel model that PVC round tube constitutes, model in the casing has spilled water hole, a model, the below, water side of model is equipped with tank, the roof of casing is provided with accurate water pressure gauge and the inlet opening that is communicated with box house, the front and back walls middle part of casing is provided with the piezometer tube leadout hole, and the bottom of the front and back walls of casing is provided with drain hole.
During test, the pvc pipe tunnel model with simulative tube sheet built and spilled water hole thereof is bonded on the casing earlier, fills full sand again in casing; When filling sand, in casing, arrange piezometer tube, and piezometer tube is linked to each other with manometer by the piezometer tube leadout hole; Close the casing top cover subsequently, block the drain, inject the water of setting hydraulic pressure from blasthole, after treating that the water yield (speed) of model water side is stable, be that seepage flow is when reaching stable state substantially, the pore water pressure force data that the water yield of beginning observational record tunnel model water side and manometer are measured is promptly finished single test, obtains the battery of tests data.Next time before the test, at first close the water inlet pipe valve, gutter is opened, current in the casing are discharged fully, take out sand in the casing, change bonding another the different pvc pipe tunnel model of spilled water hole density of going up again, refill sand and arrange piezometer tube, close casing and water filling again, test then next time.By the analysis of experimental data that test of many times is obtained, can draw the pore water pressure in different spilled water hole density and the tunnel lining country rock and the relation of vent flow, thereby provide test basis for the design and construction of shield tunnel segment lining.
The problem that adopts existing chamber to test existence is: except that the first time, all need drain the surplus water of previous test before each test, take out the sand that previous test is filled, change the pvc pipe tunnel model again, the recent fill of laying equal stress on, layout piezometer tube; It is basicly stable to be filled to seepage flow, can begin test.Its operation is extremely loaded down with trivial details.Be filled to the basicly stable needs of seepage flow about ten days, the test period is long; And because the impossible assurance of each sand of filling is in full accord, thereby make the earth formation of its simulation unpredictable variation take place at each time test bay, cause each time test result can't be based upon on the basis of model clay physical and mechanical parameter unanimity, the contrast property of each time experimental data is poor, the data error that analysis draws is big, and its accuracy and reliability as the test basis of design and construction has much room for improvement.
The utility model content
The purpose of this utility model just provides sluicing formula pipe-plate lining model testing case, it is simple to carry out test operation with this kind chamber, test period is short, experimental data accuracy height, good reliability, can provide more effectively reliably test basis accurately for the design and the construction of shield tunnel, thereby better guarantee the safety and the economy in tunnel.
The utility model solves its technical problem, the technical scheme that is adopted is: a kind of sluicing formula pipe-plate lining model testing case, comprise case lid, casing, the front and back walls middle part of casing is provided with the piezometer tube leadout hole, the bottom of the front and back walls of casing is provided with drain hole, the accurate water pressure gauge and the inlet opening that are communicated with box house are arranged on the case lid, and its design feature is: the sidewall of casing is stretched out in the water side that the bottom that is vertically arranged with internal mold that PVC round tube constitutes, internal mold in the described casing has internal mold spilled water hole, an internal mold; The below, water side of internal mold is equipped with tank; The outer external mold that is with steel has the external mold spilled water hole on the internal mold on the external mold, and the quantity of internal mold spilled water hole is less than or equals the external mold spilled water hole, and arbitrary internal mold spilled water hole all aligns with corresponding external mold spilled water hole.
The principle that adopts the utility model to test is: external mold simulative tube sheet built, the spilled water hole of internal mold spilled water hole simulative tube sheet built; Concrete test method is:
Test for the first time is linked in the insertion of pvc pipe internal mold on the external mold, and the internal mold spilled water hole is alignd with the external mold spilled water hole, and the water side of internal mold and external mold is bonding.In casing, fill full sand again; When filling sand, in casing, arrange piezometer tube, and piezometer tube is linked to each other with manometer by the piezometer tube leadout hole; Close the casing top cover subsequently, close gutter, inject the water of setting hydraulic pressure from blasthole, after treating that the water yield (speed) of internal mold water side is stable, be that seepage flow is when reaching stable state substantially, the pore water pressure force data that the water yield of beginning observational record internal mold water side and manometer are measured is promptly finished single test, obtains the battery of tests data.
Reach later test next time, at first close the water inlet pipe valve, open gutter, water level in the casing is drained into below the internal mold position, the pvc pipe internal mold of previous test can be taken out, newly insert the different pvc pipe internal mold of spilled water hole density, the internal mold spilled water hole is alignd with the external mold spilled water hole, the water side of internal mold and external mold is bonding, by setting the hydraulic pressure water filling, can test after the water yield (speed) of internal mold water side is stablized again next time.
By the analysis of experimental data that test of many times is obtained, can draw the pore water pressure in different spilled water hole density and the tunnel lining country rock and the relation of vent flow, for the design and construction of shield tunnel segment lining provides test basis.
Compared with prior art, the beneficial effects of the utility model are:
One, when carrying out test for the second time and later test, drain operation only needs water level is drained into internal mold pipe position and following, can make things convenient for internal mold and the bonding of adventitia water side to get final product, need not water is drained fully, thereby the stable time of water side water yield that is filled to of new single test shortens half, reduce to about five days by original ten days, the cycle of whole test significantly reduces, the efficient height.
Two, be fixed in the casing owing to external mold, the external mold spilled water hole quantity of external mold more than or equal the internal mold spilled water hole, in the chamber of external mold, can put the internal mold of different spilled water hole density, the internal mold spilled water hole is alignd with the external mold spilled water hole, can the sluicing of internal mold spilled water hole not impacted.Therefore, the test of the not isotype sluicing density of simulation when changing the internal mold of different spilled water hole density, only carry out in the die cavity outside, and the filling soil in external mold and the casing is all constant, need not to fetch earth, bankets again and arrange piezometer tube, operates more simple and convenient.
Three, simultaneously, the replacing of the internal mold of different spilled water hole density is just carried out in the chamber of external mold during owing to each time test.The external mold of simulative tube sheet built and the filling soil (model clay) between casing are still native with filling for the external mold of previous test, sand when making each the test is in full accord, each time test result is based upon on the consistent basis of model clay physical and mechanical parameter (as density, porosity), can be thereby each time test for data has to property, the data error that analysis draws is little, accurate, can provide unfailing test foundation more for the design and the construction in tunnel, thereby better guarantee the safety and the economy in tunnel.
Above-mentioned external mold water side closely is connected by welding with the wall box contact position, and the bottom of the other end of external mold places on the back-up block of wall box welding.
So both made things convenient for the connection of casing and external mold, and can guarantee being connected firmly of casing and external mold again, the junction of water side is water-tight.
Also be provided with valve on the above-mentioned gutter, get final product during Open valve when needing draining after the test like this, begin in test and the test, valve-off get final product, the draining after the convenient test with test in water storage.
The height of the above-mentioned internal mold and the water side of external mold is lower than the height of the other end.When testing like this, the water that enters in the inside cavity by the internal mold spilled water hole can flow out for test by the internal mold water side fully, and the measurement of assurance bleeder quantity is accurate.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the positive sectional structure schematic diagram of the utility model embodiment.
Fig. 3 be the utility model embodiment external mold face structural representation.
Fig. 4 be the utility model embodiment internal mold face structural representation.
The specific embodiment
Embodiment
Fig. 1-4 illustrates, a kind of specific embodiment of the present utility model is, a kind of sluicing formula pipe-plate lining model testing case, comprise case lid 1a, casing 1, the front and back walls middle part of casing 1 is provided with piezometer tube leadout hole 6, and the bottom of the front and back walls of casing 1 is provided with drain hole 7, and accurate water pressure gauge 5 and inlet opening 4 with casing 1 internal communication are arranged on the case lid 1a.
The sidewall of casing 1 is stretched out in the water side that the bottom that is vertically arranged with internal mold 3 that PVC round tube constitutes, internal mold 3 in the casing 1 has internal mold spilled water hole 3a, an internal mold 3; The below, water side of internal mold 3 is equipped with tank 8; The outer external mold 2 that is with steel has external mold spilled water hole 2a on the internal mold 3 on the external mold 2.The quantity of internal mold spilled water hole 3a is less than or equals external mold spilled water hole 2a, and arbitrary internal mold spilled water hole 3a all aligns with corresponding external mold spilled water hole 2a.
These routine external mold 2 water sides closely are connected by welding with casing 1 sidewall contact position, and the bottom of the other end of external mold 2 places on the back-up block 11 of casing 1 sidewall welding.Also be provided with valve on the gutter 7.The height of the water side of internal mold 3 and external mold 2 is lower than the height of the other end.
Claims (4)
1. sluicing formula pipe-plate lining model testing case, comprise case lid (1a), casing (1), the front and back walls middle part of casing (1) is provided with piezometer tube leadout hole (6), the bottom of the front and back walls of casing (1) is provided with drain hole (7), accurate water pressure gauge (5) and inlet opening (4) with casing (1) internal communication are arranged on the case lid (1a), it is characterized in that: the bottom that is vertically arranged with internal mold (3), the internal mold (3) of PVC round tube formation in the described casing (1) has the water side of internal mold spilled water hole (3a), internal mold (3) and stretches out the sidewall of casing (1); The below, water side of internal mold (3) is equipped with tank (8); Internal mold (3) is gone up the outer external mold (2) that is with steel, has external mold spilled water hole (2a) on the external mold (2), and the quantity of internal mold spilled water hole (3a) is less than or equals external mold spilled water hole (2a), and arbitrary internal mold spilled water hole (3a) all aligns with corresponding external mold spilled water hole (2a).
2. sluicing formula pipe-plate lining model testing case according to claim 1, it is characterized in that: described external mold (2) water side closely is connected by welding with casing (1) sidewall contact position, and the bottom of the other end of external mold (2) places on the back-up block (11) of casing (1) sidewall welding.
3. sluicing formula pipe-plate lining model testing case according to claim 1 and 2 is characterized in that described gutter also is provided with valve on (7).
4. sluicing formula pipe-plate lining model testing case according to claim 1 and 2 is characterized in that the height of the water side of described internal mold (3) and external mold (2) is lower than the height of the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200009597U CN201915970U (en) | 2010-12-23 | 2011-01-04 | Draining type segment lining model test box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020676379.5 | 2010-12-23 | ||
| CN201020676379 | 2010-12-23 | ||
| CN2011200009597U CN201915970U (en) | 2010-12-23 | 2011-01-04 | Draining type segment lining model test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201915970U true CN201915970U (en) | 2011-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200009597U Expired - Lifetime CN201915970U (en) | 2010-12-23 | 2011-01-04 | Draining type segment lining model test box |
Country Status (1)
| Country | Link |
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| CN (1) | CN201915970U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135491A (en) * | 2010-12-23 | 2011-07-27 | 西南交通大学 | Drainage type segment lining model pore hydrostatic test device |
| CN102562092A (en) * | 2012-01-31 | 2012-07-11 | 西南交通大学 | Testing container for tunnel lining model |
| CN102587932A (en) * | 2012-02-02 | 2012-07-18 | 西南交通大学 | Loading frame for tunnel lining model test |
| CN107084832A (en) * | 2017-06-09 | 2017-08-22 | 北京工业大学 | The model test apparatus of simulation tunnel single shell lining part waterproof and water drainage system performance |
| CN108426706A (en) * | 2018-02-02 | 2018-08-21 | 西南交通大学 | A kind of high hydraulic pressure area shield formula TBM Segments Design test-beds |
-
2011
- 2011-01-04 CN CN2011200009597U patent/CN201915970U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135491A (en) * | 2010-12-23 | 2011-07-27 | 西南交通大学 | Drainage type segment lining model pore hydrostatic test device |
| CN102562092A (en) * | 2012-01-31 | 2012-07-11 | 西南交通大学 | Testing container for tunnel lining model |
| CN102562092B (en) * | 2012-01-31 | 2013-11-20 | 西南交通大学 | Testing container for tunnel lining model |
| CN102587932A (en) * | 2012-02-02 | 2012-07-18 | 西南交通大学 | Loading frame for tunnel lining model test |
| CN107084832A (en) * | 2017-06-09 | 2017-08-22 | 北京工业大学 | The model test apparatus of simulation tunnel single shell lining part waterproof and water drainage system performance |
| CN108426706A (en) * | 2018-02-02 | 2018-08-21 | 西南交通大学 | A kind of high hydraulic pressure area shield formula TBM Segments Design test-beds |
| CN108426706B (en) * | 2018-02-02 | 2023-10-17 | 西南交通大学 | Shield type TBM tunnel segment design test bench for high water pressure area |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20120613 |