CN105971025B - Counterforce device and method for the oblique cone penetration test of tunnel internal - Google Patents
Counterforce device and method for the oblique cone penetration test of tunnel internal Download PDFInfo
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- CN105971025B CN105971025B CN201610321945.2A CN201610321945A CN105971025B CN 105971025 B CN105971025 B CN 105971025B CN 201610321945 A CN201610321945 A CN 201610321945A CN 105971025 B CN105971025 B CN 105971025B
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- 230000035515 penetration Effects 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 105
- 239000010959 steel Substances 0.000 claims abstract description 105
- 230000003068 static effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 235000004443 Ricinus communis Nutrition 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 210000001015 abdomen Anatomy 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- -1 silt Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of counterforce device and method for the oblique cone penetration test of tunnel internal.Two first channel-section steels are arranged on the both sides of cone penetration test bottom of the frame, it is fixedly connected between the web at two first channel-section steel both ends by steel pipe, second channel-section steel is across the symmetrical fixed mount in ground between two first channel-section steel top surfaces, second channel-section steel is located at the surface of steel pipe, and Anchor plate kit and counter-force support adjusting part are mounted on two the second channel-section steels；Anchor plate kit includes angle steel and pressing plate；Counter-force support adjusting part includes fixing pipe, screw rod and two stop nuts.Counterforce device of the present invention takes full advantage of bolt and bolt hole on the concrete pipe sheet of Subway Tunnel Lining, oblique and horizontal direction cone penetration test can be carried out, the safety of guarantee test process, overcome existing counterforce device and existing deficiency during cone penetration test is carried out in tunnel.
Description
Technical field
The present invention relates to a kind of counterforce device and method for the oblique cone penetration test of tunnel internal, for subway tunnel
The cone penetration test carried out in road.
Background technology
Cone penetration test is to use two-bridge probe or the experiment that the injection soil body is detected on the ground of three bridges probe,
The experiment can record static point resistance, sidewall resistance and pore water pressure of the probe during downward injection soil layer, pass through
These parameters can have a preliminary understanding to soil mass property.By the injection soil body of popping one's head in, it is necessary to counterforce device is set up, to provide
Counter-force needed for penetration process.
Current technology, spiral shape earth anchor is typically rotatably inserted into the soil body by hydraulic means, then reaction beam is passed through
It is bolted on earth anchor, and then will be pressed into power set on reaction beam.But such counterforce device is for will be
The interior cone penetration test carried out of subway tunnel does not apply to simultaneously, because the lining cutting of subway tunnel is spelled by concrete pipe sheet at present
Dress forms, it is impossible to uses earth anchorage.Also, when carrying out cone penetration test in tunnel, starched due to having to reinforce outside lining cutting
Liquid, underground water, silt, mud, it can be gushed into tunnel internal in holes, it is necessary to take certain safeguard procedures.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to providing one kind is used for the oblique static sounding of tunnel internal
The counterforce device and method of experiment.
The purpose of the present invention is achieved through the following technical solutions：
First, a kind of counterforce device for the oblique cone penetration test of tunnel internal：
Device includes cone penetration test frame, two first channel-section steels, two second channel-section steels, Anchor plate kit and counter-force support
Adjusting part；Two first channel-section steel horizontal parallels are arranged on the both sides of cone penetration test bottom of the frame, two first channel-section steels two
It is fixedly connected between the web at end by steel pipe, two second channel-section steels are perpendicular to the first channel-section steel and are arranged symmetrically in the first channel-section steel
Both ends, for the second channel-section steel across ground fixed mount between two first channel-section steel top surfaces, the second channel-section steel is located at the surface of steel pipe, two
Anchor plate kit and counter-force support adjusting part are mounted on individual second channel-section steel.
Described cone penetration test frame underrun bolt is arranged on the top flange of the first channel-section steel, under the second channel-section steel
It is bolted to connection between the both ends on the edge of a wing and the first channel-section steel top flange, between the middle part of the second channel-section steel lower flange and steel pipe
It is bolted.
Described Anchor plate kit includes angle steel and pressing plate, and two angle steel are abreast arranged on the second channel-section steel vertically by bolt
On web outside face, pressing plate is articulated between two angle steel bottoms, and its jointed shaft is identical with the second channel-section steel length direction, two pressures
Plate is arranged on by bolt on the concrete pipe sheet of tunnel internal.
Described counter-force support adjusting part includes fixing pipe, screw rod and two stop nuts, the both ends of the second channel-section steel
Vertically-mounted fixing pipe is fixedly welded with, screw rod is actively set in fixing pipe, and whole section of screw rod is threaded, above fixing pipe
Be respectively cased with stop nut on the screw rod of lower section, screw rod bottom is connected with castor, and castor is used for and the concrete in tunnel internal
Section of jurisdiction surface contacts.
The second described channel-section steel web side is outside, and open side is inner side.
The one side of two described angle steel is fixed on web side, and pressing plate is hinged between two angle steel another sides, and
And rotate and install towards outside.
2nd, the method for the oblique cone penetration test of a kind of tunnel internal, comprises the following steps：
1) valve is arranged on the injected hole of concrete pipe sheet by screwed pipe；
2) valve is opened, water drilling drill bit is extend into injected hole through mechanical valve and screwed pipe carries out holes, after holes
Extract drill bit and close valve；
3) any described counterforce device of claim 1~6 is arranged on the concrete pipe sheet of subway tunnel；
4) cone penetration test device is arranged in cone penetration test frame, valve is opened, by the spy of static sounding
Head stretches into injected hole, carries out cone penetration test；
5) after cone penetration test terminates, probe is extracted, valve is closed, unloads cone penetration test device；
6) lower platen is unloaded from concrete pipe sheet, removes counterforce device；
7) lower valve is unloaded, injected hole is closed with rapid hardening and early strength cement.
The step 3) is specifically that pressing plate first is arranged on into tunnel inner concrete section of jurisdiction to be used for fixed bolt hole, is made quiet
Power cone penetration test frame is located at directly over injected hole, then adjusts cone penetration test machine by the stop nut of adjusting means corner
The gradient of frame installation, and the stop nut of fixing pipe upper and lower is tightened so that cone penetration test shelf position is fixed.
In the step 1), the both ends of screwed pipe are respectively provided with external screw thread, one end and the internal thread phase of concrete pipe sheet injected hole
Even, the other end is connected with the internal thread of valve.
The beneficial effects of the invention are as follows：
The present invention combines the specific environment in subway tunnel, devises the counterforce device, can be by cone penetration test machine
Frame is firmly connected with concrete pipe sheet, then the leveling of cone penetration test frame is carried out using the stop nut on surrounding screw rod.
Therefore, counterforce device of the present invention takes full advantage of bolt and bolt hole on the concrete pipe sheet of Subway Tunnel Lining,
The cone penetration test of the vertical direction of conventional levels device can not only be carried out, and oblique cone penetration test can be carried out.
And test method employs valve, effectively prevent the slurry of tunnel outer, silt, mud, underground water etc. from pouring in tunnel, ensure
The safety of experiment process, overcome existing counterforce device and existing deficiency during cone penetration test is carried out in tunnel.
Brief description of the drawings
Fig. 1 is the overall structure diagram of counterforce device of the present invention；
Fig. 2 is cone penetration test frame, the first channel-section steel, the scheme of installation of steel pipe；
Fig. 3 is the scheme of installation that counter-force supports adjusting part；
Fig. 4 is local installation enlarged diagram of the fixing pipe on screw rod；
Fig. 5 is the local installation enlarged diagram that steel pipe is connected with the first channel-section steel；
Fig. 6 is the installation diagrammatic cross-section of apparatus of the present invention oblique cone penetration test in tunnel；
Fig. 7 is sensing point position view of the embodiment of the present invention；
Fig. 8 is the depth of the embodiment of the present invention and the relation data figure of static point resistance.
In figure：Cone penetration test frame 1, the first channel-section steel 2, steel pipe 3, the second channel-section steel 4, castor 5, angle steel 6, pressing plate 7, spiral shell
Bar 8, fixing pipe 9, stop nut 10.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, counterforce device of the present invention is arranged on the concrete pipe sheet of subway tunnel, including cone penetration test
Frame 1, including two first channel-section steels, 2, two second channel-section steels 4, Anchor plate kit and counter-force support adjusting part；Two first channel-section steels
2 horizontal parallels are arranged on the both sides of the bottom of cone penetration test frame 1, pass through between the web at two both ends of first channel-section steel 2
Steel pipe 3 is fixedly connected, and two second channel-section steels 4 are perpendicular to the first channel-section steel 2 and are arranged symmetrically in the both ends of the first channel-section steel 2, the second groove
For steel 4 across ground fixed mount between two top surfaces of first channel-section steel 2, the second channel-section steel 4 is located at the surface of steel pipe 3, two the second grooves
Anchor plate kit and counter-force support adjusting part are mounted on steel 4, Anchor plate kit and counter-force the support adjusting part at both ends are relative
Claim arrangement.
It is embodied as being easily installed, the top flange of the first channel-section steel 2 is provided with screw, and through hole is provided with web.
As depicted in figs. 1 and 2, the underrun bolt of cone penetration test frame 1 is arranged on the top flange of the first channel-section steel 2
On, it is bolted to connection between the both ends and the top flange of the first channel-section steel 2 of the lower flange of the second channel-section steel 4, as shown in figure 5, second
It is bolted between the middle part of the lower flange of channel-section steel 4 and steel pipe 3, bolt tightens fixation through steel pipe 3 with nut.
As shown in figure 3, Anchor plate kit includes angle steel 6 and pressing plate 7, two angle steel 6 are abreast arranged on vertically by bolt
On the web outside face of second channel-section steel 4, pressing plate 7 is articulated between two bottoms of angle steel 6, its jointed shaft and the length side of the second channel-section steel 4
To identical, two pressing plates 7 are arranged on by bolt on the concrete pipe sheet of tunnel internal.
As shown in Figure 3 and Figure 4, counter-force support adjusting part includes fixing pipe 9, screw rod 8 and two stop nuts 10, and second
The both ends of channel-section steel 4 are fixedly welded with vertically-mounted fixing pipe 9, and screw rod 8 is actively set in fixing pipe 9, the whole section of equal band of screw rod 8
There is a screw thread, be respectively cased with stop nut 10 on the screw rod 8 above and below fixing pipe 9, the bottom of screw rod 8 is connected with castor 5, castor 5
For being contacted with the concrete pipe sheet surface in tunnel internal；As shown in figure 5, by adjusting stop nut 10 on screw rod 8
Position so that screw rod 8 and fixing pipe 9 are relatively fixed, and then make whole device be in horizontality or incline with what tunnel was adapted
Ramp-like state.
The open side of two the second channel-section steels 4 faces to be installed inwardly so that the web side of the second channel-section steel 4 is outside, open side
For inner side.
Two open sides of angle steel 6 of the second channel-section steel 4 face to be installed inwardly so that the one side of angle steel 6 is fixed on web
Side, another side are located at outside.
The one side of two angle steel 6 is fixed on web side, and pressing plate 7 is hinged between two another sides of angle steel 6, and court
Rotation installation laterally.
Embodiments of the invention and its implementation process are as follows：
The present invention carries out actual use and feeler inspection experiment in the case where subway tunnel pipe sheet assembling finishes.
(1) valve being arranged on concrete pipe sheet injected hole by screwed pipe, valve uses mechanical ball valve, and the two of screwed pipe
End has external screw thread, and one end is connected with the internal thread of concrete pipe sheet injected hole, and the other end is connected with the internal thread of valve；Valve
It can effectively prevent the slurry of tunnel outer, silt, mud, underground water etc. from pouring in tunnel, the safety of guarantee test process.
(2) valve is opened, the drill bit of water drilling is stretched into injected hole carries out holes；
(3) after the completion of holes, drill bit is extracted, closes valve；
(4) pressing plate 7 is first arranged on tunnel inner concrete section of jurisdiction and is used for fixed bolt hole, make cone penetration test machine
Frame 1 is located at directly over injected hole, then adjusts the installation of cone penetration test frame 1 by the stop nut 10 of adjusting means corner
Gradient, and the stop nut 10 of the upper and lower of fixing pipe 9 is tightened so that the position of cone penetration test frame 1 is fixed, such as Fig. 6 institutes
Show.
(5) gradient of counterforce device is adjusted by eight stop nuts 10；
(6) cone penetration test device is arranged in cone penetration test frame 1, opens valve, probe is stretched into note
Hole is starched, carries out cone penetration test.
(7) after cone penetration test terminates, probe is extracted, valve is closed, unloads cone penetration test device；
(8) lower platen 7 is unloaded from concrete pipe sheet, removes counterforce device；
(9) lower valve is unloaded, closes injected hole with rapid hardening and early strength cement, it is ensured that tunnel safety.
Embodiment use apparatus of the present invention after cone penetration test location point as shown in fig. 7, its result as shown in figure 8,
It can substantially judge to carry out cone penetration test before and after shield-tunneling construction in figure, relatively resulting static point resistance, shield-tunneling construction
Afterwards, in the range of about 2 meters of tunnel bottom, static point resistance is much larger than undisturbed soil, illustrates there is grouting and reinforcing region, toward (about 9 meters of exterior domain
It is deep) static point resistance is less than undisturbed soil, and it is construction disturbance region, then region outward, static point resistance are basically unchanged, and illustrate that construction is disturbed
Dynamic unobvious.
Thus shield-tunneling construction range of disturbance and degree to caused by the soil body be can determine whether.
From embodiment, its obvious technical effects of the invention protrude, and can carry out conventional levels and oblique static sounding
Experiment, the safety of guarantee test process, effectively prevent the slurry of tunnel outer, silt, mud, underground water etc. from pouring in tunnel, gram
Existing counterforce device is taken and existing deficiency during cone penetration test is carried out in tunnel.
Claims (7)
1. a kind of counterforce device for the oblique cone penetration test of tunnel internal, including cone penetration test frame (1), it is special
Sign is：Adjusting part is supported including two first channel-section steels (2), two second channel-section steels (4), Anchor plate kit and counter-force；Two
One channel-section steel (2) horizontal parallel is arranged on the both sides of cone penetration test frame (1) bottom, the abdomen at two first channel-section steel (2) both ends
It is fixedly connected between plate by steel pipe (3), two second channel-section steels (4) are perpendicular to the first channel-section steel (2) and are arranged symmetrically in first
The both ends of channel-section steel (2), the second channel-section steel (4) across ground fixed mount between two first channel-section steel (2) top surfaces, the second channel-section steel (4) position
In be mounted on the surface of steel pipe (3), two the second channel-section steels (4) Anchor plate kit and counter-force support adjusting part；
Described Anchor plate kit includes angle steel (6) and pressing plate (7), and two angle steel (6) are abreast arranged on the by bolt vertically
On two channel-section steels (4) web outside face, pressing plate (7) is articulated between two angle steel (6) bottoms, its jointed shaft and the second channel-section steel (4)
Length direction is identical, and two pressing plates (7) are arranged on by bolt on the concrete pipe sheet of tunnel internal；
Described counter-force support adjusting part includes fixing pipe (9), screw rod (8) and two stop nuts (10), the second channel-section steel (4)
Both ends be fixedly welded with vertically-mounted fixing pipe (9), screw rod (8) is actively set in fixing pipe (9), whole section of screw rod (8)
It is threaded, stop nut (10) is respectively cased with the screw rod (8) above and below fixing pipe (9), screw rod (8) bottom is connected with
Castor (5), castor (5) are used to contact with the concrete pipe sheet surface in tunnel internal.
2. a kind of counterforce device for the oblique cone penetration test of tunnel internal according to claim 1, its feature exist
In：Described cone penetration test frame (1) underrun bolt is arranged on the top flange of the first channel-section steel (2), the second channel-section steel
(4) it is bolted to connection between the both ends of lower flange and the first channel-section steel (2) top flange, in the second channel-section steel (4) lower flange
It is bolted between portion and steel pipe (3).
3. a kind of counterforce device for the oblique cone penetration test of tunnel internal according to claim 1, its feature exist
In：Described the second channel-section steel (4) web side is outside, and open side is inner side.
4. a kind of counterforce device for the oblique cone penetration test of tunnel internal according to claim 3, its feature exist
In：The one side of two described angle steel (6) is fixed on the second channel-section steel (4) web side, and pressing plate (7) is hinged on two angle steel (6)
Between another side, and rotate and install towards outside.
A kind of 5. method of the oblique cone penetration test of tunnel internal, it is characterised in that comprise the following steps：
1) valve is arranged on the injected hole of concrete pipe sheet by screwed pipe；
2) valve is opened, water drilling drill bit is extend into injected hole through mechanical valve and screwed pipe carries out holes, is extracted after holes
Drill bit simultaneously closes valve；
3) any described counterforce device of Claims 1 to 4 is arranged on the concrete pipe sheet of subway tunnel；
4) cone penetration test device is arranged in cone penetration test frame (1), valve is opened, by the probe of static sounding
Injected hole is stretched into, carries out cone penetration test；
5) after cone penetration test terminates, probe is extracted, valve is closed, unloads cone penetration test device；
6) lower platen (7) is unloaded from concrete pipe sheet, removes counterforce device；
7) lower valve is unloaded, injected hole is closed with rapid hardening and early strength cement.
A kind of 6. method of the oblique cone penetration test of tunnel internal according to claim 5, it is characterised in that：The step
It is rapid that pressing plate (7) first specifically 3) is arranged on tunnel inner concrete section of jurisdiction for fixed bolt hole, make cone penetration test
Frame (1) is located at directly over injected hole, then adjusts cone penetration test frame by the stop nut (10) of adjusting means corner
(1) gradient of installation, and the stop nut (10) for tightening fixing pipe (9) upper and lower causes cone penetration test frame (1) position
Put fixation.
A kind of 7. method of the oblique cone penetration test of tunnel internal according to claim 5, it is characterised in that：The step
It is rapid 1) in, the both ends of screwed pipe are respectively provided with external screw thread, and one end is connected with the internal thread of concrete pipe sheet injected hole, the other end and valve
Internal thread be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321945.2A CN105971025B (en) | 2016-05-16 | 2016-05-16 | Counterforce device and method for the oblique cone penetration test of tunnel internal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610321945.2A CN105971025B (en) | 2016-05-16 | 2016-05-16 | Counterforce device and method for the oblique cone penetration test of tunnel internal |
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| Publication Number | Publication Date |
|---|---|
| CN105971025A CN105971025A (en) | 2016-09-28 |
| CN105971025B true CN105971025B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610321945.2A Active CN105971025B (en) | 2016-05-16 | 2016-05-16 | Counterforce device and method for the oblique cone penetration test of tunnel internal |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026033A (en) * | 2018-07-23 | 2018-12-18 | 石家庄铁道大学 | A kind of counterforce device in shield ancillary equipment |
| CN109442202B (en) * | 2018-10-29 | 2020-12-01 | 中国石油大学(华东) | Gas storage device for carbon dioxide flooding |
| CN109556964B (en) * | 2018-11-06 | 2021-12-14 | 宁波大学 | Monitoring control system of tunnel model test platform based on three-dimensional model |
| CN110206076B (en) * | 2019-05-28 | 2021-03-16 | 湖北理工学院 | Dynamic detection method and device for foundation constraint capacity of civil engineering structure |
| CN110702879B (en) * | 2019-10-21 | 2020-11-06 | 成都理工大学 | Device and method for measuring disturbance range of soil body after sampling |
| CN112664237B (en) * | 2020-12-29 | 2023-06-02 | 宁波朗达工程科技有限公司 | Tunnel supporting acting force adjusting device and method |
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|---|---|---|---|---|
| CN2263340Y (en) * | 1996-03-28 | 1997-09-24 | 铁道部第三勘测设计院 | Static measuring equipment |
| JP2009035945A (en) * | 2007-08-02 | 2009-02-19 | Japan Health Science Foundation | Device for testing foldable static cone penetration |
| CN103255754A (en) * | 2013-04-26 | 2013-08-21 | 同济大学 | Indoor inclined static cone penetration model test device |
| CN204964342U (en) * | 2015-09-11 | 2016-01-13 | 宁波工程学院 | Impervious testing arrangement of cement pipe piece |
| CN205804424U (en) * | 2016-05-16 | 2016-12-14 | 浙江大学 | A kind of counterforce device for the oblique cone penetration test of tunnel internal |
-
2016
- 2016-05-16 CN CN201610321945.2A patent/CN105971025B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263340Y (en) * | 1996-03-28 | 1997-09-24 | 铁道部第三勘测设计院 | Static measuring equipment |
| JP2009035945A (en) * | 2007-08-02 | 2009-02-19 | Japan Health Science Foundation | Device for testing foldable static cone penetration |
| CN103255754A (en) * | 2013-04-26 | 2013-08-21 | 同济大学 | Indoor inclined static cone penetration model test device |
| CN204964342U (en) * | 2015-09-11 | 2016-01-13 | 宁波工程学院 | Impervious testing arrangement of cement pipe piece |
| CN205804424U (en) * | 2016-05-16 | 2016-12-14 | 浙江大学 | A kind of counterforce device for the oblique cone penetration test of tunnel internal |
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| CN105971025A (en) | 2016-09-28 |
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