CN205804424U - A kind of counterforce device for the oblique cone penetration test of tunnel internal - Google Patents
A kind of counterforce device for the oblique cone penetration test of tunnel internal Download PDFInfo
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- CN205804424U CN205804424U CN201620448395.6U CN201620448395U CN205804424U CN 205804424 U CN205804424 U CN 205804424U CN 201620448395 U CN201620448395 U CN 201620448395U CN 205804424 U CN205804424 U CN 205804424U
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- 230000035515 penetration Effects 0.000 title claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 104
- 239000010959 steel Substances 0.000 claims abstract description 104
- 238000003825 pressing Methods 0.000 claims abstract description 17
- 235000004443 Ricinus communis Nutrition 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 230000007812 deficiency Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 description 11
- 239000002689 soil Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 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
- 230000003014 reinforcing effect Effects 0.000 description 2
- -1 silt Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of counterforce device for the oblique cone penetration test of tunnel internal.Two first channel-section steels are arranged on the both sides bottom cone penetration test frame, all connect by steel pipe is fixing between the web at two first channel-section steel two ends, second channel-section steel across ground symmetry fixed mount between two first channel-section steel end faces, second channel-section steel is positioned at the surface of steel pipe, two the second channel-section steels is mounted on Anchor plate kit and counter-force supports adjusting part；Anchor plate kit includes angle steel and pressing plate；Counter-force supports adjusting part and includes fixing pipe, screw rod and two stop nuts.This utility model counterforce device 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, overcomes existing counterforce device and carries out the deficiency of existence during cone penetration test in tunnel.
Description
Technical field
This utility model relates to a kind of counterforce device for the oblique cone penetration test of tunnel internal, for ground
The cone penetration test carried out in ferrum tunnel.
Background technology
Cone penetration test uses two-bridge probe or the three bridges injection soil body on the ground of popping one's head in detect
Test, this test can record probe static point resistance during downward injection soil layer, sidewall resistance and
Pore water pressure, can have a preliminary understanding by these parameters to soil mass property.Will be by probe injection soil
Body, it is necessary to set up counterforce device, to provide counter-force needed for penetration process.
Current technology, it is common that spiral type earth anchor is rotatably inserted into the soil body by hydraulic means, then by counter-force
Beam is bolted on earth anchor, and then will be pressed into power set and be arranged on reaction beam.But, so
Counterforce device for the cone penetration test to carry out in subway tunnel inapplicable because subway at present
The lining cutting in tunnel is all assembled by concrete pipe sheet, it is impossible to use earth anchorage.Further, tunnel is being carried out
In road during cone penetration test, owing to having reinforcing serosity, subsoil water, silt, mud outside lining cutting, broken
Kong Shihui gushs entrance tunnel internal, it is necessary to take certain safeguard procedures.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, it is provided that a kind of oblique for tunnel internal
To the counterforce device of cone penetration test.
The purpose of this utility model is achieved through the following technical solutions:
This utility model includes cone penetration test frame, two first channel-section steels, two second channel-section steels, pressing plates
Assembly and counter-force support adjusting part；Two first channel-section steel horizontal parallel are arranged on cone penetration test frame ground
The both sides in portion, all connect by steel pipe is fixing between the web at two first channel-section steel two ends, two second channel-section steels
Be perpendicular to the first channel-section steel and be arranged symmetrically in the two ends of the first channel-section steel, the second channel-section steel across ground fixed mount at two
Between first channel-section steel end face, the second channel-section steel is positioned at the surface of steel pipe, and two the second channel-section steels are mounted on pressure
Board component and counter-force support adjusting part.
Described cone penetration test frame underrun bolt is arranged on the top flange of the first channel-section steel, and second
It is bolted to connection between two ends and the first channel-section steel top flange of channel-section steel lower flange, the second channel-section steel lower flange
Middle part and steel pipe between be bolted.
Described Anchor plate kit includes angle steel and pressing plate, and two angle steel are arranged on the most abreast by bolt
On two channel-section steel web outside faces, pressing plate is articulated with between two angle steel bottoms, and its jointed shaft and the second channel-section steel are long
Degree direction is identical, and two pressing plates are arranged on the concrete pipe sheet of tunnel internal by bolt.
Described counter-force supports adjusting part and includes fixing pipe, screw rod and two stop nuts, the second channel-section steel
Both ends are fixedly welded with vertically-mounted fixing pipe, and screw rod is actively set in fixing pipe, and whole section of screw rod all carries
Having screw thread, the screw rod above and below fixing pipe is respectively cased with stop nut, screw rod bottom connects castor,
Castor is for contacting with the concrete pipe sheet surface at tunnel internal.
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, pressing plate be hinged on two angle steel another sides it
Between, and installation is rotated towards outside.
The beneficial effects of the utility model are:
This utility model combines the specific environment in subway tunnel, devises described counterforce device, can be by static(al)
Cone penetration test frame is firmly connected with concrete pipe sheet, then uses the stop nut on surrounding screw rod to carry out static(al)
The leveling of cone penetration test frame.
Therefore, this utility model counterforce device takes full advantage of bolt on the concrete pipe sheet of Subway Tunnel Lining
And bolt hole, the cone penetration test of the vertical direction of conventional levels device can not only be carried out, and can carry out
Oblique cone penetration test.And test method have employed valve, effectively prevent tunnel outer slurry,
Silt, mud, subsoil water etc. pour in tunnel, it is ensured that the safety of process of the test, overcome existing counterforce device
The deficiency of existence during cone penetration test is carried out in tunnel.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this utility model counterforce device；
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 that enlarged diagram is installed in fixing pipe local on screw rod；
Fig. 5 is that enlarged diagram is installed in the local of steel pipe and the connection of the first channel-section steel；
Fig. 6 is this utility model device installation generalized section of oblique cone penetration test in tunnel；
Fig. 7 is this utility model embodiment sensing point position view；
Fig. 8 is the degree of depth relation data figure with static point resistance of this utility model embodiment.
In figure: cone penetration test frame the 1, first channel-section steel 2, steel pipe the 3, second channel-section steel 4, castor 5, angle
Steel 6, pressing plate 7, screw rod 8, fixing pipe 9, stop nut 10.
Detailed description of the invention
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, this utility model counterforce device is arranged on the concrete pipe sheet of subway tunnel, including
Cone penetration test frame 1, including 2, two second channel-section steels 4 of two first channel-section steels, Anchor plate kit and counter-force
Support adjusting part；Two first channel-section steel 2 horizontal parallel are arranged on two bottom cone penetration test frame 1
Side, all connects by steel pipe 3 is fixing between the web at two first channel-section steel 2 two ends, two second channel-section steels 4
Being perpendicular to the first channel-section steel 2 and be arranged symmetrically in the two ends of the first channel-section steel 2, the second channel-section steel 4 is across ground fixed mount
Between two first channel-section steel 2 end faces, the second channel-section steel 4 is positioned at the surface of steel pipe 3, two the second channel-section steels 4
On be mounted on Anchor plate kit and counter-force and support adjusting part, the Anchor plate kit at two ends and counter-force and support regulation group
The symmetrical layout of part.
Being embodied as being easily installed, the top flange of the first channel-section steel 2 has screw, and web has through hole.
As depicted in figs. 1 and 2, cone penetration test frame 1 underrun bolt is arranged on the first channel-section steel 2
Top flange on, be bolted between two ends and first channel-section steel 2 top flange of the second channel-section steel 4 lower flange
Connect, as it is shown in figure 5, be bolted between middle part and the steel pipe 3 of the second channel-section steel 4 lower flange, spiral shell
Bolt is fixed through steel pipe 3 with nut screwing clamping.
As it is shown on figure 3, Anchor plate kit includes angle steel 6 and pressing plate 7, two angle steel 6 are the most parallel by bolt
Be arranged on the second channel-section steel 4 web outside face, pressing plate 7 is articulated with between two angle steel 6 bottoms, its hinge
Spindle is identical with the second channel-section steel 4 length direction, and two pressing plates 7 are arranged on the coagulation of tunnel internal by bolt
On soil section of jurisdiction.
As shown in Figure 3 and Figure 4, counter-force support adjusting part includes fixing pipe 9, screw rod 8 and two spacing spiral shells
Female 10, the both ends of the second channel-section steel 4 are fixedly welded with vertically-mounted fixing pipe 9, and screw rod 8 is actively set on
In fixing pipe 9, whole section of screw rod 8 is all threaded, and the screw rod 8 above and below fixing pipe 9 is respectively cased with
Stop nut 10, screw rod 8 bottom connects castor 5, and castor 5 is used for and the pipe of concrete at tunnel internal
Sheet surface contacts；As it is shown in figure 5, by the regulation stop nut 10 position on screw rod 8 so that screw rod
8 and fixing pipe 9 be relatively fixed, and then make whole device be in level or skewed with what tunnel adapted
State.
The open side of two the second channel-section steels 4 faces installs inwardly so that the second channel-section steel 4 web side is outward
Side, open side is inner side.
Two angle steel 6 open side of the second channel-section steel 4 face installs inwardly so that the one side of angle steel 6 is solid
Being scheduled on web side, another side is positioned at outside.
The one side of two angle steel 6 is fixed on web side, pressing plate 7 be hinged on two angle steel 6 another sides it
Between, and installation is rotated towards outside.
Embodiment of the present utility model and implementation process thereof are as follows:
This utility model carries out actually used and feeler inspection experiment in the case of subway tunnel pipe sheet assembling is complete.
(1) being arranged on concrete pipe sheet injected hole by screwed pipe by valve, valve uses mechanical type ball valve,
The two ends of screwed pipe have external screw thread, and one end is connected with the female thread of concrete pipe sheet injected hole, the other end and valve
The female thread of door is connected；Valve can effectively prevent the slurry of tunnel outer, silt, mud, subsoil water etc. from gushing
Enter tunnel, it is ensured that the safety of process of the test.
(2) open valve, the drill bit of water drilling is stretched into injected hole and carries out holes；
(3) after holes completes, extract drill bit, close valve；
(4) first pressing plate 7 is arranged on the bolt hole that inner concrete section of jurisdiction, tunnel is used for fixing, makes static(al) touch
Trial and error test frame 1 is positioned at directly over injected hole, then regulates static(al) by the stop nut 10 of adjusting means corner
The gradient that cone penetration test frame 1 is installed, and the stop nut 10 tightening fixing pipe 9 upper and lower makes static(al)
Cone penetration test frame 1 position is fixed, as shown in Figure 6.
(5) gradient of counterforce device is regulated by eight stop nuts 10；
(6) cone penetration test device is arranged in cone penetration test frame 1, opens valve, will visit
Head stretches into injected hole, carries out cone penetration test.
(7) after cone penetration test terminates, probe is extracted, close valve, unload cone penetration test dress
Put；
(8) from concrete pipe sheet, unload lower platen 7, remove counterforce device；
(9) unload lower valve, close injected hole with rapid hardening and early strength cement, it is ensured that tunnel safety.
Embodiment uses the cone penetration test location point after this utility model device as it is shown in fig. 7, its result
As shown in Figure 8, figure can substantially be judged before and after shield-tunneling construction, carry out cone penetration test, compare gained
The static point resistance arrived, after shield-tunneling construction, in the range of tunnel bottom about 2 meters, static point resistance is much larger than original state
Soil, has illustrated grouting and reinforcing region, toward exterior domain (about 9 meters deep) static point resistance less than undisturbed soil, is to execute
Work disturbance region, then region outward, static point resistance is basically unchanged, and illustrates that construction disturbance is the most inconspicuous.
Thus can determine whether range of disturbance and degree that the soil body causes by shield-tunneling construction.
From embodiment, its obvious technical effects of this utility model highlights, and can carry out conventional levels and oblique
Cone penetration test, it is ensured that the safety of process of the test, effectively prevent the slurry of tunnel outer, silt, silt
Mud, subsoil water etc. pour in tunnel, overcome existing counterforce device and carry out depositing during cone penetration test in tunnel
Deficiency.
Claims (6)
1. for a counterforce device for the oblique cone penetration test of tunnel internal, including cone penetration test machine
Frame (1), it is characterised in that: include two first channel-section steels (2), two second channel-section steels (4), pressing plate groups
Part and counter-force support adjusting part；Two first channel-section steel (2) horizontal parallel are arranged on cone penetration test frame
(1) both sides of bottom, all fixing even by steel pipe (3) between the web at two first channel-section steel (2) two ends
Connecing, two second channel-section steels (4) are perpendicular to the first channel-section steel (2) and are arranged symmetrically in the two of the first channel-section steel (2)
End, the second channel-section steel (4) across ground fixed mount between two first channel-section steel (2) end faces, the second channel-section steel (4)
It is positioned at the surface of steel pipe (3), two the second channel-section steels (4) is mounted on Anchor plate kit and counter-force supports
Adjusting part.
A kind of counter-force for the oblique cone penetration test of tunnel internal the most according to claim 1 fills
Put, it is characterised in that: described cone penetration test frame (1) underrun bolt is arranged on the first channel-section steel
(2) on top flange, logical between two ends and the first channel-section steel (2) top flange of the second channel-section steel (4) lower flange
Cross the fixing connection of bolt, be bolted between middle part and the steel pipe (3) of the second channel-section steel (4) lower flange.
A kind of counter-force for the oblique cone penetration test of tunnel internal the most according to claim 1 fills
Put, it is characterised in that: described Anchor plate kit includes angle steel (6) and pressing plate (7), two angle steel (6)
Being arranged on the most abreast on the second channel-section steel (4) web outside face by bolt, pressing plate (7) is articulated with two
Between root angle steel (6) bottom, its jointed shaft and the second channel-section steel (4) length direction are identical, two pressing plates (7)
It is arranged on the concrete pipe sheet of tunnel internal by bolt.
A kind of counter-force for the oblique cone penetration test of tunnel internal the most according to claim 1 fills
Put, it is characterised in that: described counter-force supports adjusting part and includes fixing pipe (9), screw rod (8) and two
Individual stop nut (10), the both ends of the second channel-section steel (4) are fixedly welded with vertically-mounted fixing pipe (9),
Screw rod (8) is actively set in fixing pipe (9), and whole section of screw rod (8) is all threaded, fixing pipe (9)
Above and below screw rod (8) on be respectively cased with stop nut (10), screw rod (8) bottom connects castor
(5), castor (5) is for contacting with the concrete pipe sheet surface at tunnel internal.
A kind of counter-force for the oblique cone penetration test of tunnel internal the most according to claim 1 fills
Put, it is characterised in that: described the second channel-section steel (4) web side is outside, and open side is inner side.
A kind of counter-force for the oblique cone penetration test of tunnel internal the most according to claim 2 fills
Put, it is characterised in that: the one side of two described angle steel (6) is fixed on web side, and pressing plate (7) cuts with scissors
It is connected between two angle steel (6) another sides, and rotates installation towards outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448395.6U CN205804424U (en) | 2016-05-16 | 2016-05-16 | A kind of counterforce device for the oblique cone penetration test of tunnel internal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448395.6U CN205804424U (en) | 2016-05-16 | 2016-05-16 | A kind of counterforce device for the oblique cone penetration test of tunnel internal |
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| Publication Number | Publication Date |
|---|---|
| CN205804424U true CN205804424U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620448395.6U Active CN205804424U (en) | 2016-05-16 | 2016-05-16 | A kind of counterforce device for the oblique cone penetration test of tunnel internal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971025A (en) * | 2016-05-16 | 2016-09-28 | 浙江大学 | Counter force device and method used for oblique static force penetration test inside tunnel |
-
2016
- 2016-05-16 CN CN201620448395.6U patent/CN205804424U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971025A (en) * | 2016-05-16 | 2016-09-28 | 浙江大学 | Counter force device and method used for oblique static force penetration test inside tunnel |
| CN105971025B (en) * | 2016-05-16 | 2018-03-16 | 浙江大学 | Counterforce device and method for the oblique cone penetration test of tunnel internal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |