CN104931414B - A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig - Google Patents
A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig Download PDFInfo
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- CN104931414B CN104931414B CN201510340794.0A CN201510340794A CN104931414B CN 104931414 B CN104931414 B CN 104931414B CN 201510340794 A CN201510340794 A CN 201510340794A CN 104931414 B CN104931414 B CN 104931414B
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention is a kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig, it is characterised in that the device includes main body frame, measuring system and water-adding system；Main body frame includes model casing, portable plate, hydraulic jack and experiment section of jurisdiction；Measuring system includes earth pressure gauge, pore pressure gauge, foil gauge and data collecting instrument；Water-adding system includes peristaltic pump, flexible pipe and capillary.Hydraulic jack applies xial feed to experiment swelled ground, and water-adding system contacts band uniform water delivery to experiment section of jurisdiction with steady rate by capillary with experiment swelled ground.Gathered using data collecting instrument and record each measurement point soil pressure of experiment swelled ground, pore water pressure and segment deformation data.The present invention can accurately measure the expansive force and swelled ground range of expansion suffered by slurry balance shield tunnel duct piece, make up existing method deficiency, slurry balance shield tunnel swelled ground expansion character parameter can be provided for association areas such as engineering geology, Tunnel Engineering.
Description
Technical field
The invention belongs to Geological Engineering, Tunnel Engineering technical field, more particularly, to a kind of swelled ground area mud and water balance
Duct pieces of shield tunnel force analysis experimental rig.
Background technology
United States bureau of reclamation in 1938 is found that swelled ground problem, then drawn first in the siphon pipe engineering of a steel
Extensive concern is played.To the sixties in last century, swelled ground problem is in widespread attention and correlative study is developed rapidly.More particularly to
Slurry balance shield tunnel, residual slurry and underground water continue to tunnel perimeter soil body penetration after being installed in section of jurisdiction, and swelled ground is inhaled
Deformation is expanded after water, expansive force is produced under section of jurisdiction and surrounding soil constraint.Research used field monitoring hand mostly in the past
Section, however, because site environment is complex and disturbing factor is more, can not often obtain suffered by authentic and valid analysis section of jurisdiction
The expansive force and swelled ground range of expansion arrived.In summary, there is no at present a can test swelled ground area mud and water balance shield
The experimental rig of structure tunnel duct piece stress.
The content of the invention
The invention aims to a kind of swelled ground area slurry balance shield for overcoming above-mentioned technological deficiency and providing
Tunnel duct piece force analysis experimental rig.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig, it is characterised in that the device
Including main body frame, measuring system and water-adding system.
Described main body frame includes model casing, portable plate, hydraulic jack and experiment section of jurisdiction.Described model casing is overall
Framework is supported using angle steel, and positive facade uses fixation steel plate using fixed safety glass, side elevation, and top bottom surface uses detachable steel
Plate；Described side elevation steel plate is passed through provided with round hole for testing section of jurisdiction；Described portable plate includes upper and lower two pieces, position
It in model casing, can vertically move, be experiment swelled ground in the middle of two pieces of portable plates；Described hydraulic jack includes two
It is individual, respectively above upper mobile board and below lower portable plate, for applying vertical load to experiment swelled ground；Described experiment
Section of jurisdiction is made using analog material, is closely connected with side elevation round hole.
Described measuring system includes some earth pressure gauges, some pore pressure gauges, some foil gauges and data acquisition
Instrument.Described earth pressure gauge and pore pressure gauge are laid in portable plate inner surface and experiment section of jurisdiction periphery respectively；Described
Earth pressure gauge is used to measure experiment section of jurisdiction periphery experiment expansion soil stress distribution；Described pore pressure gauge, which is used to measure, to be tested
The experiment swelled ground pore water pressure distribution of section of jurisdiction periphery；Described strain gauge adhesion is in the experiment inside and outside both sides in section of jurisdiction, for measuring
Segment deformation；Described data collecting instrument is used to gathering and record earth pressure gauge, pore pressure gauge and foil gauge measurement data.
Described water-adding system includes peristaltic pump, flexible pipe and capillary.Described peristaltic pump can accurately control water delivery speed
Rate；Described capillary from experiment section of jurisdiction point multiple directions by water uniformly introduce experiment section of jurisdiction with test swelled ground contact band.
The use of the present invention：Model roof box, upper hydraulic jack and upper mobile board are removed first, experiment section of jurisdiction is installed
And foil gauge is pasted, fill out to put experiment swelled ground and be layered into model casing and hit reality, while earth pressure gauge and hole needed for embedded measurement
Gap WG, upper mobile board, upper hydraulic jack are placed when testing swelled ground and filling out and put to preset height respectively above it
With model roof box, xial feed is applied to experiment swelled ground by hydraulic jack up and down.Set peristaltic pump water delivery speed, water
Pass sequentially through flexible pipe, capillary and contact band with experiment swelled ground even into experiment section of jurisdiction.Gathered and remembered using data collecting instrument
Each measurement point soil pressure of record experiment swelled ground, pore water pressure and segment deformation data.
The beneficial effect of technical solution of the present invention：
The present invention can accurately measure the expansive force and swelled ground range of expansion suffered by slurry balance shield tunnel duct piece,
Make up existing method not enough, slurry balance shield tunnel swelled ground can be provided for association areas such as engineering geology, Tunnel Engineering
Expansion character parameter.
Brief description of the drawings
Fig. 1 is the positive facade structural representation of device of the invention；
Fig. 2 is device side facade structures schematic diagram of the invention；
In Fig. 1,1 is model casing, and 2 be experiment swelled ground, and 3 be experiment section of jurisdiction, and 4 be portable plate, and 5 be hydraulic jack, and 6 are
Hydraulic pump, 7 be peristaltic pump, and 8 be flexible pipe, and 9 be capillary, and 10 be earth pressure gauge, and 11 be pore pressure gauge, and 12 be foil gauge,
13 be data collecting instrument.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
In specific embodiment, as shown in figure 1, the device includes model casing 1, swelled ground 2 is tested, section of jurisdiction 3, portable plate is tested
4, hydraulic jack 5, hydraulic pump 6, peristaltic pump 7, flexible pipe 8, capillary 9, earth pressure gauge 10, pore pressure gauge 11, foil gauge
12, data collecting instrument 13.
The side elevation of model casing 1 is passed through provided with round hole for testing section of jurisdiction 3.Portable plate 4 includes upper and lower two pieces, is located at
It in model casing 1, can vertically move, be experiment swelled ground 2 in the middle of two pieces of portable plates 4.Hydraulic jack 5 includes two,
It is located at the top of upper mobile board 4 and the lower section of lower portable plate 4 respectively, for applying vertical load to experiment swelled ground 2.
Earth pressure gauge 10 and pore water pressure 11 are counted is laid in the inner surface of portable plate 4 and the experiment periphery of section of jurisdiction 3 respectively, is used for
The measurement experiment stress of swelled ground 2 and pore water pressure distribution, foil gauge 12 is pasted onto the experiment inside and outside both sides in section of jurisdiction 3, for measuring
Experiment section of jurisdiction 3 is deformed, and data collecting instrument 13 is used to gather and record measurement data.
As shown in Fig. 2 capillary 9 uniformly introduces experiment section of jurisdiction 3 and experiment swelled ground from the experiment direction Jiang Shui of section of jurisdiction 3 eight
2 contact bands.
Device is in use, first remove the top plate of model casing 1, upper hydraulic jack 5 and upper mobile board 4, installation developmental tube
Piece 3 simultaneously pastes foil gauge 12, fills out to put experiment swelled ground 2 and be layered into model casing 1 and hits reality, while soil pressure needed for embedded measurement
Meter 10 with pore pressure gauge 11, when test swelled ground 2 fill out put to preset height when above it respectively place upper mobile board 4,
Upper hydraulic jack 5 and the top plate of model casing 1, xial feed is applied by hydraulic jack 5 up and down to experiment swelled ground 2.Setting
The water delivery speed of peristaltic pump 7, water passes sequentially through flexible pipe 8, capillary 9 and contacts band with experiment swelled ground 2 even into experiment section of jurisdiction 3.
Gathered using data collecting instrument 13 and record each measurement point soil pressure of experiment swelled ground, pore water pressure and segment deformation data.
Claims (1)
1. a kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig, it is characterised in that the device bag
Include main body frame, measuring system and water-adding system；
Described main body frame includes model casing, portable plate, hydraulic jack and experiment section of jurisdiction；Described model casing general frame
Supported using angle steel, positive facade is using fixed safety glass, and side elevation uses fixation steel plate, and top bottom surface uses detachable steel plate；
Described side elevation steel plate is passed through provided with round hole for testing section of jurisdiction；Described portable plate includes upper and lower two pieces, positioned at mould
It in molding box, can vertically move, be experiment swelled ground in the middle of two pieces of portable plates；Described hydraulic jack includes two,
It is located at respectively above upper mobile board and below lower portable plate, for applying vertical load to experiment swelled ground；Described developmental tube
Piece is made using analog material, is closely connected with side elevation round hole；
Described measuring system includes some earth pressure gauges, some pore pressure gauges, some foil gauges and data collecting instrument；Institute
The earth pressure gauge and pore pressure gauge stated are laid in portable plate inner surface and experiment section of jurisdiction periphery respectively；Described soil pressure
Count for measuring experiment section of jurisdiction periphery experiment expansion soil stress distribution；Described pore pressure gauge is used to measure experiment section of jurisdiction week
Side experiment swelled ground pore water pressure distribution；Described strain gauge adhesion becomes in the experiment inside and outside both sides in section of jurisdiction for measuring section of jurisdiction
Shape；Described data collecting instrument is used to gathering and record earth pressure gauge, pore pressure gauge and foil gauge measurement data；
Described water-adding system includes peristaltic pump, flexible pipe and capillary；Described peristaltic pump can accurately control water delivery speed；Institute
The capillary stated from experiment section of jurisdiction point multiple directions by water uniformly introduce experiment section of jurisdiction with test swelled ground contact band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340794.0A CN104931414B (en) | 2015-06-18 | 2015-06-18 | A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340794.0A CN104931414B (en) | 2015-06-18 | 2015-06-18 | A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104931414A CN104931414A (en) | 2015-09-23 |
| CN104931414B true CN104931414B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510340794.0A Expired - Fee Related CN104931414B (en) | 2015-06-18 | 2015-06-18 | A kind of swelled ground area slurry balance shield tunnel duct piece force analysis experimental rig |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105242010B (en) * | 2015-09-28 | 2017-06-27 | 山东大学 | The model test apparatus and method of the lower swell-shrink characteristic earth tunnel of drying and watering cycle effect |
| CN105510219A (en) * | 2015-11-30 | 2016-04-20 | 中国矿业大学 | Circulation model testing method capable of flexibly controlling base plate elevation and distance |
| CN105891105B (en) * | 2016-06-15 | 2018-09-14 | 南京大学 | A kind of multi-boundary Condition dilatometer and soil expansion test method |
| CN108181072A (en) * | 2018-03-09 | 2018-06-19 | 西南交通大学 | System is tested for the dynamic response of tunnel structure and country rock in rich water sandy soil stratum |
| CN108872297B (en) * | 2018-08-27 | 2023-12-05 | 中铁十五局集团有限公司 | Shield tail grouting slurry coagulation and segment floating process model test device |
| CN109900406B (en) * | 2019-03-15 | 2024-05-17 | 广西岩土新技术有限公司 | Device for measuring negative friction conversion coefficient of expansive soil layer, design method and measurement method |
| CN112414461B (en) * | 2020-11-11 | 2022-10-04 | 长沙理工大学 | Measurement system for dynamic mechanical response of intelligent acquisition concrete surface course |
| CN114486671B (en) * | 2021-12-16 | 2023-12-22 | 广东省交通规划设计研究院集团股份有限公司 | Intelligent transmission embolism water pressure test device for ultra-deep drilling of cross-over tunnel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221601B (en) * | 2011-06-08 | 2013-09-04 | 上海大学 | Temperature-controlled type unsaturated soil consolidometer |
| CN102519790B (en) * | 2011-12-07 | 2013-11-20 | 上海大学 | Method for determining support pressure on excavation face of slurry shield tunnel |
| CN104390845B (en) * | 2014-11-26 | 2017-01-11 | 同济大学 | Portable multifunctional soil mechanical property test device |
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| CN104931414A (en) | 2015-09-23 |
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