CN111157704B - Test method of grouting test device for vertical structural surface - Google Patents
Test method of grouting test device for vertical structural surface Download PDFInfo
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- CN111157704B CN111157704B CN202010063632.8A CN202010063632A CN111157704B CN 111157704 B CN111157704 B CN 111157704B CN 202010063632 A CN202010063632 A CN 202010063632A CN 111157704 B CN111157704 B CN 111157704B
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- 238000012360 testing method Methods 0.000 title claims abstract description 147
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 239000002002 slurry Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention provides a grouting test device and a grouting test method for a vertical structural surface, wherein the test device comprises a base, a plurality of lower clamping pieces, a top seat, a plurality of upper clamping pieces, a plurality of supporting vertical rods, a plurality of transverse pipes, a plurality of flexible grouting pipes and a plurality of fixing pieces; the upper clamping pieces are used for fixing the upper structural surface test piece on the top seat; every two adjacent support montants link to each other through a horizontal pipe, and horizontal pipe lateral wall runs through and is equipped with the bar hole, and a plurality of flexible slip casting pipes are located a plurality of horizontal intraducts one by one, a plurality of flexible slip casting pipe one end and a plurality of guide pulp passageway one by one intercommunication, and the other end passes the bar hole and is located outside the horizontal pipe, a plurality of mounting one by one slidable mounting is on a plurality of horizontal pipes. The technical scheme provided by the invention has the beneficial effects that: the upper and lower structural surface test pieces are prevented from moving during grouting, the test effect is affected, and the position of the fixing piece is adjusted according to test requirements, so that the grouting machine is more in line with the actual engineering conditions.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering test devices, in particular to a test method of a grouting test device for a vertical structural surface.
Background
In geotechnical engineering, a structural surface is a very important structure in a rock mass, and refers to a discontinuous surface with extremely low or no tensile strength, and different structural surfaces have different mechanical properties and different scales. The study of the performance of the structural surface can help to understand the properties of the rock mass, and the grasping of the mechanical properties of the rock mass has very obvious significance for guiding engineering practice. However, in real life, the mechanical properties of the rock mass structural plane are often not easy to be measured directly, and any excavation disturbance can lead to the properties of the rock mass structural plane, so that the research on the structural plane is very difficult to adopt an in-situ test. According to the current research situation, indoor tests are generally adopted to research the structural surface, and various structural surfaces are manually guided to create the structural surface for research through monitoring and collecting all data on site. In practical engineering applications, it is often necessary to fill the structural face with slurry, so as to reduce the influence of the structural face on the integrity of the rock mass, and thereby ensure the stability of the rock mass. Therefore, the structural surface filling test is a very important indoor research test in engineering practical application.
At present, according to related query data, no special structural face grouting test device is available for carrying out structural face grouting filling test, and the structural face grouting filling test is generally adopted to directly carry out grouting on a certain structural face. The grouting method cannot control the thickness of the structural surface on one hand, so that the structural surface is displaced in the grouting process, the distance is set to be separated from the original structural surface, and the expected grouting filling effect of the structural surface cannot be achieved; on the other hand, direct grouting often has time difference because of the random positions of the whole structural surface which cannot be uniformly distributed at the same time, and the slurry cannot be ensured to be uniformly distributed in the structural surface, so that the test effect is influenced.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a grouting test device and a grouting test method for a vertical structural surface.
The embodiment of the invention provides a grouting test device for a vertical structural surface, which comprises a base, a plurality of lower clamping pieces, a top seat, a plurality of upper clamping pieces, a plurality of supporting vertical rods, a plurality of transverse pipes, a plurality of flexible grouting pipes and a plurality of fixing pieces, wherein the base is provided with a plurality of upper clamping pieces;
the lower clamping pieces can be slidably mounted on the top of the base along the horizontal direction, the lower clamping pieces are used for being abutted against the periphery of the lower structural surface test piece so as to fix the lower structural surface test piece on the base, the lower ends of the supporting vertical rods are fixedly connected with the base, the upper parts of the supporting vertical rods are hollow so as to form a slurry guide channel, the top seat is fixedly connected with the upper ends of the supporting vertical rods, the upper clamping pieces can be slidably mounted on the bottom of the top seat along the horizontal direction, and the upper clamping pieces are used for being abutted against the periphery of the upper structural surface test piece so as to fix the upper structural surface test piece on the top seat, so that the upper structural surface test piece is opposite to the lower structural surface test piece and is arranged at intervals up and down;
every two adjacent support montants pass through one horizontal pipe links to each other, horizontal pipe lateral wall run through be equipped with horizontal pipe extending direction is parallel bar hole, a plurality of flexible slip casting pipe one by one locate a plurality of in the horizontal pipe, a plurality of flexible slip casting pipe one end with a plurality of guide thick liquid passageway one by one communicates, the other end passes the bar hole is located horizontal outside the pipe, a plurality of mounting one by one can be followed horizontal pipe extending direction slidable mounting in a plurality of on the horizontal pipe, flexible slip casting pipe is located horizontal outside one end is fixed in on the mounting, be used for with go up the structural surface test piece with it is relative between the structural surface test piece down.
Further, the mounting includes rotatory lantern ring and guniting pipe, rotatory lantern ring cover is located on the violently pipe, guniting pipe one end with rotatory lantern ring intercommunication is in order to form the intercommunication interface, the other end with go up the structural plane test piece with it is relative between the structural plane test piece down, flexible slip casting pipe passes the one end in bar hole with the intercommunication interface connection.
Further, the device also comprises a cutting, wherein the side wall of the guniting pipe is penetrated with a jack, and the cutting is inserted into the jack so as to adjust the pulp outlet of the guniting pipe.
Further, a friction layer is arranged on the contact surface of the lower clamping piece, which is abutted against the lower structural surface test piece; and/or the number of the groups of groups,
a friction layer is arranged on the contact surface of the upper clamping piece, which is abutted against the upper structural surface test piece; and/or the number of the groups of groups,
the base is solid, the footstock is hollow setting.
Further, the device also comprises a pulp inlet pipe and a plurality of pulp guide pipes, wherein one end of the pulp inlet pipe is used for feeding pulp, the other end of the pulp inlet pipe is communicated with one ends of the plurality of pulp guide pipes, and the other ends of the plurality of pulp guide pipes are respectively communicated with the upper ends of the plurality of support vertical rods one by one; and/or the number of the groups of groups,
the upper part of the supporting vertical rod is in telescopic arrangement.
Further, the base top undercut forms many catching grooves, and a plurality of lower holder downwardly protruding stretches into the lock joint portion, lock joint portion lock joint in the catching groove is in order to realize sliding in the horizontal direction, be equipped with the setting element on the base, the setting element is used for restriction down behind the holder removes down the holder is at the removal of horizontal direction.
Further, the locating piece is a spring, one end of the spring is connected with the side wall of the end part of the base away from the buckling groove, the other end of the spring is connected with the buckling part, and when the lower clamping piece clamps the lower structural surface test piece, the spring is in a stretching state.
Further, the bottom of the top seat is recessed upwards to form a plurality of buckling grooves, a plurality of upper clamping pieces protrude upwards to form buckling parts, the buckling parts are buckled in the buckling grooves so as to realize horizontal sliding, and the top seat is provided with positioning pieces which are used for limiting the upper clamping pieces to move horizontally after the upper clamping pieces move.
Further, the locating piece is a spring, one end of the spring is connected with the side wall of the buckling groove far away from the end part of the top seat, the other end of the spring is connected with the buckling part, and when the upper clamping piece clamps the upper structural surface test piece, the spring is in a stretching state.
The embodiment of the invention provides a test method, which uses the grouting test device for the vertical structural surface, and comprises the following steps:
s1, placing a lower structural surface test piece among a plurality of lower clamping pieces, sliding the plurality of lower clamping pieces to enable the lower clamping pieces to be abutted with the lower structural surface test piece so as to fix the lower structural surface test piece on a base;
s2, placing an upper structural surface test piece among a plurality of upper clamping pieces, sliding the upper clamping pieces to enable the upper clamping pieces to be abutted with the upper structural surface test piece so as to fix the upper structural surface test piece on a top seat;
s3, moving the position of the fixing piece on the transverse tube, so that a slurry spraying opening of the slurry spraying tube is opposite to the upper structural surface test piece and the lower structural surface test piece, uniform slurry injection is realized, and slurry can smoothly enter between the upper structural surface test piece and the lower structural surface test piece;
s4, grouting is carried out from the upper ends of the support vertical rods, and the slurry flows into slurry guide channels of the support vertical rods from a plurality of slurry guide pipes and then flows into flexible grouting pipes to be injected between the upper structural surface test piece and the lower structural surface test piece.
The technical scheme provided by the embodiment of the invention has the beneficial effects that: the lower structural surface test piece is fixed on the base by the lower clamping piece, the upper structural surface test piece is fixed on the footstock by the upper clamping piece, so that the upper structural surface test piece is opposite to the lower structural surface test piece, and the upper structural surface test piece and the lower structural surface test piece are prevented from moving when grouting is carried out between the lower structural surface test piece and the upper structural surface test piece, and the test effect is influenced. The distance between the structural surfaces can be adjusted according to test requirements so as to achieve the condition of actually conforming to engineering.
Through removing the position of rotatory lantern ring on the violently pipe, adjustable slip casting pipe is in the position on the violently pipe, rotates the spout of rotatory lantern ring adjustment guniting pipe, adjustable direction of play thick liquid, can change the passageway size of guniting pipe through removing the cutting, adjustable play thick liquid volume of guniting pipe can control the thickness of filling material to a certain extent, guarantees to evenly filling between the structural plane, makes the test result reach the ideal state.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a grouting testing device for a vertical structural surface;
FIG. 2 is a schematic diagram of the upper and lower structural surface test pieces fixed to the grouting test device for the vertical structural surface in FIG. 1;
FIG. 3 is a top or top plan view of the base, lower clamp and spring of FIG. 1, and a bottom plan view of the top mount, upper clamp and spring;
FIG. 4 is a top view of the vertical structural surface grouting testing device of FIG. 1;
FIG. 5 is a schematic view of the cross tube and fastener of FIG. 1;
fig. 6 is a schematic cross-sectional view of the mount of fig. 1.
In the figure: the device comprises a base 1, a lower clamping piece 2, a top seat 3, an upper clamping piece 4, a support vertical rod 5, a support rod 51, a first support tube 52, a second support tube 53, a transverse tube 6, a strip-shaped hole 61, a fixing piece 7, a rotary sleeve ring 71, a guniting tube 72, an inserting hole 721, a cutting 73, a communication interface 74, a positioning bolt 75, a friction layer 8, a buckling groove 9, a buckling part 10, a spring 11, a slurry inlet tube 12, a slurry guide tube 13, an upper structural surface test piece 14 and a lower structural surface test piece 15.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 6, an embodiment of the present invention provides a grouting testing device for a vertical structural surface, which includes a base 1, a plurality of lower clamping members 2, a top base 3, a plurality of upper clamping members 4, a plurality of vertical supporting members 5, a plurality of transverse pipes 6, a plurality of flexible grouting pipes and a plurality of fixing members 7.
The lower clamping pieces 2 can be horizontally and slidably mounted at the top of the base 1, the lower clamping pieces 2 are used for being abutted against the periphery of the lower structural surface test piece 15 so as to fix the lower structural surface test piece 15 on the base 1, and friction layers 8 are arranged on contact surfaces of the lower clamping pieces 2 and the lower structural surface test piece 15, so that the stability of fixing the lower structural surface test piece 15 on the base 1 can be enhanced. In this embodiment, referring to fig. 1 and 3, the top of the base 1 is recessed downward to form a plurality of fastening grooves 9, a plurality of the lower clamping members 2 protrude downward to form fastening portions 10, and the fastening portions 10 are fastened in the fastening grooves 9 (the fastening portions 10 are partially located outside the base 1 in fig. 1 and 2), so as to realize sliding in the horizontal direction. The base 1 is provided with a positioning piece, and the positioning piece is used for limiting the movement of the lower clamping piece 2 in the horizontal direction after the lower clamping piece 2 moves. In this embodiment, the positioning member is a spring 11, one end of the spring 11 is connected with the side wall of the fastening slot 9 away from the end of the base 1, the other end of the spring is connected with the fastening portion 10, and when the lower clamping member 2 clamps the lower structural surface test piece 15, the spring 11 is in a stretched state.
The lower ends of the supporting vertical rods 5 are fixedly connected with the base 1, the upper parts of the supporting vertical rods 5 are hollow to form a slurry guide channel, and the supporting vertical rods 5 play a role in supporting the top seat 3 on one hand and play a role in guiding slurry on the other hand.
The footstock 3 with support montant 5 upper end fixed connection, a plurality of go up clamping piece 4 can be followed level to slidable mounting in footstock 3 bottom, a plurality of go up clamping piece 4 be used for with go up structural surface test piece 14 periphery looks butt, so that will go up structural surface test piece 14 be fixed in on the footstock 3, so that go up structural surface test piece 14 with lower structural surface test piece 15 is relative and up-down to the interval setting, go up clamping piece 4 with the contact surface of last structural surface test piece 14 looks butt is equipped with frictional layer 8, can strengthen the stability that upper structural surface test piece 14 is fixed in on the footstock 3. The manner of the upper clamping piece 4 sliding installed on the top seat 3 is multiple, in this embodiment, the top seat 3 and the upper clamping piece 4 have the same structure as the base 1 and the lower clamping piece 2, the bottom of the top seat 3 is recessed upwards to form a plurality of buckling grooves 9, a plurality of the upper clamping pieces 4 protrude upwards to form buckling parts 10, the buckling parts 10 are buckled in the buckling grooves 9 so as to realize sliding in the horizontal direction, and the top seat 3 is provided with a positioning piece which is used for limiting the movement of the upper clamping piece 4 in the horizontal direction after the movement of the upper clamping piece 4. In this embodiment, the positioning member is a spring 11, one end of the spring 11 is connected with the side wall of the buckling groove 9 away from the end of the top seat 3, the other end of the spring is connected with the buckling portion 10, and when the upper clamping member 4 clamps the upper structural surface test piece 14, the spring 11 is in a stretched state. The base 1 is solid setting, and footstock 3 is hollow setting to guarantee the stability of whole device.
Referring to fig. 1, 2, 5 and 6, each two adjacent support vertical rods 5 are connected through a transverse tube 6, a strip-shaped hole 61 parallel to the extending direction of the transverse tube 6 is penetrating through the side wall of the transverse tube 6, a plurality of flexible grouting tubes are arranged in the transverse tube 6 one by one, one ends of the flexible grouting tubes are communicated with the slurry guiding channels one by one, the other ends of the flexible grouting tubes penetrate through the strip-shaped hole 61 and are located outside the transverse tube 6, a plurality of fixing pieces 7 can be slidably mounted on the transverse tube 6 one by one along the extending direction of the transverse tube 6, and one ends of the flexible grouting tubes located outside the transverse tube 6 are fixed on the fixing pieces 7 and are used for being opposite to the upper structural surface test piece 14 and the lower structural surface test piece 15. The fixing members 7 slide on the transverse tubes 6 to adjust the positions of the grouting tubes, and it is understood that each fixing member 7 is used for fixing one grouting tube, each grouting tube is arranged in one transverse tube 6 and is communicated with the upper portion of one supporting vertical rod 5, when the fixing members 7 slide, the grouting tubes move towards the supporting vertical rods 5 communicated with the fixing members, and as the length of the grouting tubes is larger than that of the transverse tubes 6 between the fixing members 7 and the supporting vertical rods 5, the grouting tubes are flexible and can penetrate out from the strip-shaped holes 61. In this embodiment, the base 1 and the top seat 3 are disposed in a cube, four supporting vertical rods 5 are fixed on the peripheries of the base 1 and the top seat 3, and four transverse pipes 6, four slurry guiding pipes 13, four grouting pipes and four fixing pieces 7 are disposed corresponding to the four supporting vertical rods 5.
Further, referring to fig. 6, the fixing member 7 includes a rotating collar 71, a grouting pipe 72 and a cutting 73, the rotating collar 71 is sleeved on the transverse pipe 6, one end of the grouting pipe 72 is communicated with the rotating collar 71 to form a communication interface 74, the other end of the grouting pipe is opposite to the space between the upper structural surface test piece 14 and the lower structural surface test piece 15, and the flexible grouting pipe penetrates through one end of the strip-shaped hole 61 to be connected with the communication interface 74, so that the fixing member 7 can rotate on the transverse pipe 6, thereby adjusting the angle of the grouting pipe 72, making it evenly grouting and ensuring that the slurry can smoothly enter between the upper structural surface test piece 15 and the lower structural surface test piece 15. The side wall of the guniting pipe 72 is penetrated with an insertion hole 721, and the cutting 73 is inserted into the insertion hole 721 to adjust the slurry outlet amount of the guniting pipe 72, thereby ensuring uniform filling between structural surfaces and ensuring that the test result reaches an ideal state. In this embodiment, the grouting pipe 72 is a square pipe, two opposite ends of the cutting 73 are abutted against two opposite inner side walls of the grouting pipe 73, and the cutting 73 is inserted into the insertion hole 721 and then fixed by the positioning bolt 75, which is the prior art and is not described in detail herein.
Further, referring to fig. 4, the grouting test device for a vertical structural surface further includes a slurry inlet pipe 12 and a plurality of slurry guide pipes 13, wherein one end of the slurry inlet pipe 12 is used for feeding slurry, the other end of the slurry inlet pipe is communicated with one end of the slurry guide pipes 13, and the other ends of the slurry guide pipes 13 are respectively communicated with the upper ends of the support vertical rods 5 one by one.
The upper portion of the supporting vertical rod 5 is in telescopic arrangement, the length of the supporting vertical rod 5 is convenient to adjust, the distance between the top seat 3 and the base 1 is convenient to adjust, and then the distance between the upper structural surface test piece 14 and the lower structural surface test piece 15 can be adjusted according to test requirements, so that the condition of actually conforming to engineering is achieved. The telescopic arrangement mode is multiple, in this embodiment, the support vertical rod 5 includes a support rod 51, a first support tube 52 and a second support tube 53, which all extend vertically, the lower end of the support rod 51 is fixedly connected with the lower end of the base 1, the lower end of the first support tube 52 is in threaded connection with the upper end of the support rod 51, the upper end of the first support tube 52 is in threaded connection with the lower end of the second support tube 53, the thread lengths on the first support tube 52 and the second support tube 53 can be set according to the needs, and as can be understood, the longer the thread length, the larger the telescopic adjustment range of the support vertical rod 5. In this embodiment, the scale marks are marked on the support vertical rod 5, so that the distance between the upper and lower structural surface test pieces 15 can be conveniently read.
The embodiment of the invention also provides a test method, which uses the grouting test device for the vertical structural surface, and comprises the following steps:
s1, placing a lower structural surface test piece 15 among a plurality of lower clamping pieces 2, sliding the plurality of lower clamping pieces 2, enabling the lower clamping pieces 2 to be abutted with the lower structural surface test piece 15, and fixing the lower structural surface test piece 15 on the base 1. Specifically, the lower clamping piece 2 is slid to enable the spring 11 to be in a stretched state, the lower structural surface test piece 15 is placed between the lower clamping pieces 2, the friction layer 8 of the lower clamping piece 2 is abutted against the periphery of the lower structural surface test piece 15, and due to the elastic restoring effect of the spring 11, the lower structural surface test piece 15 is clamped by the lower clamping piece 2, so that the stability of fixing the lower structural surface test piece 15 on the base 1 can be enhanced.
S2, placing the upper structural surface test piece 14 among the plurality of upper clamping pieces 4, sliding the plurality of upper clamping pieces 4, enabling the upper clamping pieces 4 to be abutted with the upper structural surface test piece 14, and fixing the upper structural surface test piece 14 on the top seat 3. Specifically, slide the holder 4, make the spring 11 be in tensile state, place the upper structure face test piece 14 between the holder 4, make the friction layer 8 of the holder 4 and the peripheral looks butt of upper structure face test piece 14, because the elasticity restoring effect of spring 11 for the upper structure face test piece 14 is pressed from both sides tightly by the holder 4, can strengthen the stability that upper structure face test piece 14 is fixed in on the footstock 3, guarantee in the slip casting in-process can not take place relative displacement because of the slip casting fills between upper structure face test piece 14 and the lower structure face test piece 15.
According to the test requirement, the distance between the top seat 3 and the base 1 is adjusted by adjusting the length of the supporting vertical rod 5, so that the distance between the upper structural surface test piece 14 and the lower structural surface test piece 15 is adjusted, and the condition which is in line with the actual engineering is achieved.
S3, moving the position of the fixing piece 7 on the transverse tube 6, so that the guniting port of the guniting tube 72 is opposite to the upper structural surface test piece 14 and the lower structural surface test piece 15, and the guniting port is uniformly grouted and can smoothly enter between the upper structural surface test piece 15 and the lower structural surface test piece 15. Specifically, by moving the rotary collar 71 at the position of the horizontal pipe 6, the position of the grouting pipe on the horizontal pipe 6 can be adjusted, the rotary collar 71 is rotated to adjust the grouting opening of the grouting pipe 72, the grouting direction can be adjusted, the channel size of the grouting pipe 72 can be changed by moving the cutting 73, the grouting amount of the grouting pipe 72 can be adjusted, the thickness of the filling material can be controlled to a certain extent, uniform filling between structural surfaces is ensured, and the test result reaches an ideal state.
S4, grouting is carried out from the upper end of the support vertical rod 5, and the slurry flows into the slurry guide channels of the support vertical rod 5 from a plurality of slurry guide pipes 13 and then flows into the flexible grouting pipes to be injected between the upper structural surface test piece 14 and the lower structural surface test piece 15. Specifically, grouting is performed from one end of the grouting pipe 12 far away from the grouting pipe 13, the grout flows into the grouting channel of the support vertical rod 5 from the plurality of grouting pipes 13, then flows into the flexible grouting pipe, is injected between the upper structural surface test piece 14 and the lower structural surface test piece 15 through the grouting openings of the grouting pipe 72, and performs grouting filling on the structural surface from different positions in multiple directions, so that the uniformity and stability of the grout can be ensured to a certain extent.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The test method of the grouting test device for the vertical structural surface is characterized by comprising a base, a plurality of lower clamping pieces, a top seat, a plurality of upper clamping pieces, a plurality of supporting vertical rods, a plurality of transverse pipes, a plurality of flexible grouting pipes and a plurality of fixing pieces;
the lower clamping pieces can be slidably mounted on the top of the base along the horizontal direction, the lower clamping pieces are used for being abutted against the periphery of the lower structural surface test piece so as to fix the lower structural surface test piece on the base, the lower ends of the supporting vertical rods are fixedly connected with the base, the upper parts of the supporting vertical rods are hollow so as to form a slurry guide channel, the top seat is fixedly connected with the upper ends of the supporting vertical rods, the upper clamping pieces can be slidably mounted on the bottom of the top seat along the horizontal direction, and the upper clamping pieces are used for being abutted against the periphery of the upper structural surface test piece so as to fix the upper structural surface test piece on the top seat, so that the upper structural surface test piece is opposite to the lower structural surface test piece and is arranged at intervals up and down;
every two adjacent support vertical rods are connected through one transverse pipe, the side wall of the transverse pipe is penetrated and provided with a strip-shaped hole parallel to the extending direction of the transverse pipe, a plurality of flexible grouting pipes are arranged in the transverse pipes one by one, one ends of the flexible grouting pipes are communicated with the slurry guiding channels one by one, the other ends of the flexible grouting pipes penetrate through the strip-shaped hole and are positioned outside the transverse pipe, a plurality of fixing pieces can be slidably arranged on the transverse pipes one by one along the extending direction of the transverse pipe, and one ends of the flexible grouting pipes positioned outside the transverse pipe are fixed on the fixing pieces and are used for being opposite to the upper structural surface test pieces and the lower structural surface test pieces;
the method comprises the following steps:
s1, placing a lower structural surface test piece among a plurality of lower clamping pieces, sliding the plurality of lower clamping pieces to enable the lower clamping pieces to be abutted with the lower structural surface test piece so as to fix the lower structural surface test piece on a base;
s2, placing an upper structural surface test piece among a plurality of upper clamping pieces, sliding the upper clamping pieces to enable the upper clamping pieces to be abutted with the upper structural surface test piece so as to fix the upper structural surface test piece on a top seat;
s3, moving the position of the fixing piece on the transverse tube, so that a slurry spraying opening of the slurry spraying tube is opposite to the upper structural surface test piece and the lower structural surface test piece, uniform slurry injection is realized, and slurry can smoothly enter between the upper structural surface test piece and the lower structural surface test piece;
s4, grouting is carried out from the upper ends of the support vertical rods, and the slurry flows into slurry guide channels of the support vertical rods from a plurality of slurry guide pipes and then flows into flexible grouting pipes to be injected between the upper structural surface test piece and the lower structural surface test piece.
2. The method according to claim 1, wherein the fixing member comprises a rotary collar and a grouting pipe, the rotary collar is sleeved on the transverse pipe, one end of the grouting pipe is communicated with the rotary collar to form a communication interface, the other end of the grouting pipe is opposite to the upper structural surface test piece and the lower structural surface test piece, and one end of the grouting pipe penetrating through the strip-shaped hole is connected with the communication interface.
3. The method according to claim 2, further comprising inserting strips, wherein insertion holes are formed in the side walls of the grouting pipes, and the inserting strips are inserted into the insertion holes to adjust the grouting amount of the grouting pipes.
4. The test method of the grouting test device for the vertical structural surface according to claim 1, wherein a friction layer is arranged on a contact surface of the lower clamping piece, which is abutted against the test piece for the lower structural surface; and/or the number of the groups of groups,
a friction layer is arranged on the contact surface of the upper clamping piece, which is abutted against the upper structural surface test piece; and/or the number of the groups of groups,
the base is solid, the footstock is hollow setting.
5. The test method of the grouting test device for the vertical structural surface according to claim 1, further comprising a slurry inlet pipe and a plurality of slurry guide pipes, wherein one end of each slurry inlet pipe is used for feeding slurry, the other end of each slurry inlet pipe is communicated with one ends of a plurality of slurry guide pipes, and the other ends of the plurality of slurry guide pipes are respectively communicated with the upper ends of a plurality of supporting vertical rods one by one; and/or the number of the groups of groups,
the upper part of the supporting vertical rod is in telescopic arrangement.
6. The method according to claim 1, wherein the top of the base is recessed downward to form a plurality of fastening grooves, the plurality of lower clamping members are protruded downward to form fastening parts, the fastening parts are fastened in the fastening grooves to realize horizontal sliding, and the base is provided with positioning members for limiting the movement of the lower clamping members in the horizontal direction after the movement of the lower clamping members.
7. The method according to claim 6, wherein the positioning member is a spring, one end of the spring is connected to a side wall of the buckling groove far away from the end of the base, the other end of the spring is connected to the buckling portion, and the spring is in a stretched state when the lower clamping member clamps the lower structural surface test piece.
8. The method according to claim 1, wherein the bottom of the top base is recessed upward to form a plurality of fastening grooves, the plurality of upper clamping members are protruded upward to form fastening parts, the fastening parts are fastened in the fastening grooves to realize horizontal sliding, and the top base is provided with positioning members for limiting the movement of the upper clamping members in the horizontal direction after the movement of the upper clamping members.
9. The method according to claim 8, wherein the positioning member is a spring, one end of the spring is connected to a side wall of the buckling groove away from the end of the top seat, the other end of the spring is connected to the buckling portion, and the spring is in a stretched state when the upper clamping member clamps the upper structural surface test piece.
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