CN103115669A - Testing apparatus for simulating sandy gravel ground layer shield driving vibration - Google Patents
Testing apparatus for simulating sandy gravel ground layer shield driving vibration Download PDFInfo
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- CN103115669A CN103115669A CN2013100244533A CN201310024453A CN103115669A CN 103115669 A CN103115669 A CN 103115669A CN 2013100244533 A CN2013100244533 A CN 2013100244533A CN 201310024453 A CN201310024453 A CN 201310024453A CN 103115669 A CN103115669 A CN 103115669A
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Abstract
The invention relates to testing apparatus for simulating sandy gravel ground layer shield driving vibration. The testing apparatus for simulating the sandy gravel ground layer shield driving vibration comprises a non-cover square transparent model box, an electrical machine and a metal cutter head, wherein the non-cover square transparent model box comprises angle steel side stand columns, an angle steel beam and side panels. One side panel of the model box is transformed, namely a vertical angle steel middle stand column is additionally arranged on the side panel, and thus the side panel is divided into a detachable part and a non-detachable part, wherein the detachable part is split into a detachable square aluminum alloy plate and a detachable bar-type aluminum alloy plate. The metal cutter head is connected with the detachable square aluminum alloy plate, and the position of the metal cutter head is adjusted through the changes of combination of position in the vertical direction of the detachable square aluminum alloy plate and the detachable bar-type aluminum alloy plate, and the electric machine drives the metal cutter head to rotate in the non-cover square transparent model box. The metal cutter head is composed of a plurality of U-type metal cutters, the U-type metal cutters are arranged on the metal cutter head along the different diameter directions, and the included angles of any two diameters are the same.
Description
Technical field
The invention belongs to technical field of civil engineering, is a kind ofly to cause the ambient vibration pilot model apparatus for the sand-pebble layer Shield Construction Method Used.
Background technology
Expansion and development along with the city, track traffic has become to be alleviated congested in traffic and improves the optimal selection that people go on a journey, urban track traffic all can by buildings and densely populated urban area, be paid close attention to by people also more and more in process of construction to surrounding environment influence.The sand-pebble layer in Some Domestic city (as Beijing, Chengdu etc.) has that buried depth is shallow, grain diameter is large, grating is good, hard-packed characteristics, running tunnel Suporting structure knife disc tool and sandy gravel particle collision induced vibration in tunneling process easily reaches the earth's surface, not only disturb residents, produce larger environment social influence, and when amplitude is large, frequency may have surface structures when low and damages, produces the non-uniform settling equivalent risk.
It is the common method of environmental impact analysis that the working-yard measures, but limited by field condition, measures simultaneously operating mode single, is difficult to illustrate from aspects such as different cutterhead forms and grain diameter, tunnel thickness of earth-fill cover, cutterhead rotating speeds the mechanism of production of vibration.
Summary of the invention
The present invention aims to provide and a kind ofly causes the ambient vibration pilot model apparatus for the sand-pebble layer Shield Construction Method Used, this device has reliability and extendability is strong, the characteristics that operability is good can be used for studying the factors such as different cutterhead forms, grain diameter, thickness of earth-fill cover, cutterhead rotating speed and shield driving are caused the impact of ambient vibration.
Concrete technical scheme is as follows:
comprise without the square transparent mould molding box of top cover, motor, and metal cutterhead, comprise angle steel edge column (1) without the square transparent model case of top cover, angle steel crossbeam (2), side panel (3), it is characterized in that: a side panel transformation for model casing adds vertical angle steel central post (4), side panel is divided into removable section and non-dismountable part, removable section is divided into detachable square aluminum alloy sheets (5) and detachable bar shaped aluminium alloy plate (6), the metal cutterhead is connected with detachable square aluminum alloy sheets (5), make up to adjust the position of metal cutterhead by the upper-lower position that changes detachable square aluminum alloy sheets (5) and detachable bar shaped aluminium alloy plate (6), driven by motor metal cutterhead is turning without the square transparent mould molding box of top cover inward turning, the metal cutterhead is comprised of rosette (8) and a plurality of U-shaped metal cutters (10), U-shaped metal cutter (10) is arranged along the different-diameter direction of rosette (8), and any two diameter angles equate.
Detachable square aluminum alloy sheets (5) and detachable bar shaped aluminium alloy plate (6) aluminium alloy sheets.
Described motor (9) is variable speed machine.
Described cylinder (7) is the galvanized iron sheet material.
Rosette (8) is selected circular corrosion resistant plate.
U-shaped metalwork (8) selects the stainless steel cut polishing to form.
U-shaped metal cutter (10) is fixed by bolt and rosette, and U-shaped metal cutter (10) is by the multi-form cutterhead of different combine analog.
The metal cutterhead is connected by the galvanized iron sheet cylinder with detachable square aluminum alloy sheets (5).
Beneficial effect
Model casing device of the present invention can be simulated the ambient vibration that sand-pebble layer shield tunnel tunneling construction causes, be used for studying the factors such as different cutterhead forms, grain diameter, thickness of earth-fill cover, cutterhead rotating speed and shield driving caused the impact of ambient vibration, with low cost, operability good, reliability is high.
Description of drawings
Fig. 1: structural representation of the present invention;
Fig. 2: model casing device front elevation in embodiment;
Fig. 3: model casing device vertical view in embodiment;
Fig. 4: galvanized iron sheet cylindrical conformation schematic diagram;
Fig. 5: metal cutterhead front view (FV);
Fig. 6: U-shaped metal cutter front view (FV)
Fig. 7: U-shaped metal cutter outboard profile
In figure: angle steel edge column (1), angle steel crossbeam (2), side panel (3), vertical angle steel central post (4), detachable bar shaped aluminium alloy plate (5), detachable square aluminum alloy sheets (6), galvanized iron sheet cylinder (7), metal cutterhead (8), variable speed machine (9), U-shaped metal cutter (10).
Embodiment:
Comprise angle steel edge column (1), angle steel crossbeam (2), side panel (3) without the square transparent model case of top cover, a side panel transformation for model casing adds vertical angle steel central post (4), side panel is divided into removable section and non-dismountable part, acrylic board that non-dismountable part is all selected in side panel, the detachable part subpanel adopts the thick aluminium alloy plate of 2mm.Removable section is divided into a detachable square plate (6) and eight detachable stripe board (5), wherein detachable square plate specification is 400mm * 400mm, detachable square plate center drilling diameter 200mm, detachable elongated plates specification is 400mm * 100mm, can make up to adjust detachable square plate position by upper-lower position, the model casing framework is welded by the L70*5 angle steel, and all plates are all fixed by bolt and angle steel; Select the transparent mould molding box be easy to take pictures with inspection box near the metal cutterhead particle Oscillation Amplitude change.
Galvanized iron sheet cylinder (7) adopts the thick galvanized iron sheet of 1.5mm to make, and an end is welded into integral body with detachable square plate (6), and the end heart therein is welded with a rotating shaft and is connected with variable speed machine.
Metal cutterhead (8) is the thick circular stainless-steel sheet of 5mm, and drills through the circular hole of diameter 3mm on steel plate, and circular hole is arranged and quantity is pressed accompanying drawing 5 settings, and U-shaped metal cutter (9) is connected and fixed by M2.5 screw and rosette, forms cutterhead; Disk can be divided into three, four, six deciles, consist of the cutterhead of three, four, six width, U-shaped metal cutter (10) is placed along the rosette diametric(al).The shield driving of research under different cutterheads causes the impact of ambient vibration.
Welding one rotating shaft of center, the rosette back side, in rosette back side cutting, the galvanized iron sheet cylinder is stuck in groove and uses oil lubricating, and rotating shaft is connected with variable speed machine, drives rosette by variable speed machine and rotates, the simulation shield cutter circumgyration incision soil body.
After laying graded sand and stone in model casing, can settle the velocity and acceleration sensor in necromancer and surface before cutterhead, be used for vibration survey.
By detachable stripe board and detachable square plate, adjust upper-lower position with change the galvanized iron sheet cylinder in model casing vertically to the position, the thickness of earth-fill cover of simulation shield tunnel changes; By the multi-form combination of U-shaped metal cutter, simulate multi-form cutterhead; By adjusting variable speed machine rotating speed and graded sand and stone particle, can simulate different rotating speeds and grain diameter and change, with the ambient vibration research that realizes that multi-state, multifactor lower sand-pebble layer shield driving cause.
Claims (8)
1. one kind is used for the test unit that the shield driving of simulation sand-pebble layer is vibrated, comprise without the square transparent mould molding box of top cover, motor, and metal cutterhead, comprise angle steel edge column (1) without the square transparent model case of top cover, angle steel crossbeam (2), side panel (3), it is characterized in that: a side panel transformation for model casing adds vertical angle steel central post (4), side panel is divided into removable section and non-dismountable part, removable section is divided into detachable square aluminum alloy sheets (6) and detachable bar shaped aluminium alloy plate (5), the metal cutterhead is connected with detachable square aluminum alloy sheets (6), make up to adjust the position of metal cutterhead by the upper-lower position that changes detachable square aluminum alloy sheets (6) and detachable bar shaped aluminium alloy plate (5), driven by motor metal cutterhead is turning without the square transparent mould molding box of top cover inward turning, and metal cutterhead (8) is comprised of rosette and a plurality of U-shaped metal cutters (10), and U-shaped metal cutter (10) is fixed on rosette.
2. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, it is characterized in that: described U-shaped metal cutter (10) is arranged along the different-diameter direction of rosette, and any two diameter angles equate.
3. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, is characterized in that: detachable square aluminum alloy sheets (6) and detachable bar shaped aluminium alloy plate (5) aluminium alloy sheets.
4. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, it is characterized in that: described motor (9) is variable speed machine.
5. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, it is characterized in that: rosette is selected circular corrosion resistant plate.
6. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, it is characterized in that: U-shaped metal cutter (10) selects the stainless steel cut polishing to form.
7. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1, it is characterized in that: U-shaped metal cutter (10) is fixed by bolt and rosette, and U-shaped metal cutter (10) is by the multi-form cutterhead of different combine analog.
8. a kind of test unit for simulation sand-pebble layer shield driving vibration according to claim 1 is characterized in that: the metal cutterhead is connected by galvanized iron sheet cylinder (7) with detachable square aluminum alloy sheets (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100244533A CN103115669A (en) | 2013-01-22 | 2013-01-22 | Testing apparatus for simulating sandy gravel ground layer shield driving vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100244533A CN103115669A (en) | 2013-01-22 | 2013-01-22 | Testing apparatus for simulating sandy gravel ground layer shield driving vibration |
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| CN103115669A true CN103115669A (en) | 2013-05-22 |
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| CN2013100244533A Pending CN103115669A (en) | 2013-01-22 | 2013-01-22 | Testing apparatus for simulating sandy gravel ground layer shield driving vibration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900677A (en) * | 2014-03-31 | 2014-07-02 | 北京工业大学 | Experiment model device used for researching induced vibration propagation law in shield driving |
| CN107014603A (en) * | 2017-06-06 | 2017-08-04 | 中铁隧道集团有限公司 | A kind of experimental method for obtaining different geology operating mode shield cutter exciting forces |
| CN107014616A (en) * | 2017-05-09 | 2017-08-04 | 中铁工程装备集团有限公司 | Main bearing of shield machine radial vibration load test system and test method |
| CN114061992A (en) * | 2020-08-06 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Assembled model groove device for indoor shield tunneling test and test method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101403306A (en) * | 2008-11-10 | 2009-04-08 | 西南交通大学 | Soil pressure balancing type tunnel shielding simulation experiment system |
| CN101881173A (en) * | 2010-03-29 | 2010-11-10 | 上海盾构设计试验研究中心有限公司 | Synchronous grouting simulation test platform of shield tunneling machine |
| CN102680390A (en) * | 2012-03-27 | 2012-09-19 | 北京工业大学 | Test device and method for simulating tunnel excavation to cause soil arching effect |
-
2013
- 2013-01-22 CN CN2013100244533A patent/CN103115669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403306A (en) * | 2008-11-10 | 2009-04-08 | 西南交通大学 | Soil pressure balancing type tunnel shielding simulation experiment system |
| CN101881173A (en) * | 2010-03-29 | 2010-11-10 | 上海盾构设计试验研究中心有限公司 | Synchronous grouting simulation test platform of shield tunneling machine |
| CN102680390A (en) * | 2012-03-27 | 2012-09-19 | 北京工业大学 | Test device and method for simulating tunnel excavation to cause soil arching effect |
Non-Patent Citations (1)
| Title |
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| 李贤妮: "《盾构掘进试验***的研制》", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900677A (en) * | 2014-03-31 | 2014-07-02 | 北京工业大学 | Experiment model device used for researching induced vibration propagation law in shield driving |
| CN107014616A (en) * | 2017-05-09 | 2017-08-04 | 中铁工程装备集团有限公司 | Main bearing of shield machine radial vibration load test system and test method |
| CN107014616B (en) * | 2017-05-09 | 2023-04-18 | 中铁工程装备集团有限公司 | Radial vibration loading test system and test method for main bearing of shield machine |
| CN107014603A (en) * | 2017-06-06 | 2017-08-04 | 中铁隧道集团有限公司 | A kind of experimental method for obtaining different geology operating mode shield cutter exciting forces |
| CN107014603B (en) * | 2017-06-06 | 2019-03-15 | 中铁隧道集团有限公司 | A kind of experimental method obtaining different geology operating condition shield cutter exciting forces |
| CN114061992A (en) * | 2020-08-06 | 2022-02-18 | 中国电建集团华东勘测设计研究院有限公司 | Assembled model groove device for indoor shield tunneling test and test method thereof |
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Application publication date: 20130522 |