CN111335921B - Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method - Google Patents
Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method Download PDFInfo
- Publication number
- CN111335921B CN111335921B CN202010133622.7A CN202010133622A CN111335921B CN 111335921 B CN111335921 B CN 111335921B CN 202010133622 A CN202010133622 A CN 202010133622A CN 111335921 B CN111335921 B CN 111335921B
- Authority
- CN
- China
- Prior art keywords
- grouting
- pipe
- slurry
- pipe body
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 90
- 238000007599 discharging Methods 0.000 claims abstract description 48
- 238000004873 anchoring Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000011440 grout Substances 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 21
- 239000011435 rock Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000012466 permeate Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an automatic grouting device for mounting a single-point displacement meter and a sectional grouting mounting method. The device comprises an automatic grouting system, a base section for system installation, a hollow section for single-point displacement meter installation and an anchoring section; the automatic grouting system consists of a grouting pump, a grouting control console, a grouting/slurry discharging liquid flow sensor, a check valve, a grouting pipe and a slurry discharging pipe; the anchoring section and the base section are automatically grouted, and the hollow section is not grouted, so that the cement grout is prevented from permeating into the displacement meter. In the automatic grouting process, the grouting console judges whether to stop grouting according to the signal of the liquid flow sensor, and sends an instruction to a motor of a grouting pump through a servo driver, so that the real-time control of the grouting process is realized. The invention can realize segmented grouting, save the consumption of cement paste, improve the accuracy of data acquisition, and simultaneously can accurately control the grouting time and ensure the grouting quality of each segment.
Description
The technical field is as follows:
the invention relates to the field of underground engineering monitoring, in particular to an automatic grouting device for single-point displacement meter installation and a sectional grouting installation method.
Background art:
monitoring and measuring in underground engineering construction are important means for guaranteeing the construction safety and quality of the whole underground engineering. And monitoring the deformation of surrounding rocks, the settlement of the earth surface and the settlement of buildings on the ground in the construction process so as to determine construction countermeasures and measures in time and ensure safe construction.
The monitoring of the deformation of the underground engineering surrounding rock is taken as an important link in construction monitoring, and has important significance for evaluating the safety and reliability of primary support and secondary lining design in real time. In the existing method for monitoring the deformation of the surrounding rock, monitoring based on a displacement meter is one of the main means, wherein a single-point displacement meter is more commonly used.
There are four common mounting methods for single point displacement meters.
Firstly, cement grout is poured into the bottom of the mounting hole, the depth of the grout is generally 200-250mm, and the single-point displacement meter anchor head is inserted into the cement grout in the hole to be anchored. But this grouting method is not suitable for upward grouting. When the grouting device is used for downward grouting, if a rock stratum with certain permeability is encountered, whether the depth of the slurry meets the requirement cannot be judged, the reliable anchoring of the anchoring head and the rock stratum is influenced, and the accuracy of displacement monitoring data is further influenced.
And secondly, binding and fixing the anchor head and the cement slurry of the paper bag, inserting the anchor head end of the single-point displacement meter into the hole, and anchoring the anchor head and the cement slurry together at the bottom of the hole after the paper bag is dissolved. The method is not suitable for up-grouting and the operation of the paper-covered cement slurry is not easy to control.
Thirdly, the anchor head and the grouting pipe are inserted into the hole at the same time, and integral grouting anchoring is realized. The method is not suitable for upward grouting, and the integral grouting can cause cement paste to permeate into the displacement sensor to influence the accuracy of displacement reading. Meanwhile, the method has more cement paste consumption and no economical efficiency.
Fourthly, a grouting pipe, an exhaust drain pipe and a fixed sealing device are introduced to perform full-hole pressure grouting. Although the grouting method can realize upward and downward grouting, the full-hole grouting can cause cement paste to permeate into the displacement sensor, so that the accuracy of displacement reading is influenced; meanwhile, the method has more cement paste consumption and no economical efficiency; the standard for stopping grouting by the method is the grouting of the exhaust and drainage pipe, and the grouting quality is difficult to control due to the fact that certain time delay and misjudgment exist in manual judgment.
In summary, in order to overcome the defects of the existing grouting method, the invention discloses an automatic grouting device for mounting a single-point displacement meter and a sectional grouting method.
Disclosure of Invention
The invention aims to provide an automatic grouting device for mounting a single-point displacement meter and a sectional grouting mounting method, which can realize sectional grouting, save the using amount of cement paste and ensure that the cement paste does not permeate into a displacement sensor, thereby improving the accuracy of data acquisition. In addition, the automatic grouting system can control grouting time more accurately, so that grouting quality is guaranteed.
In order to achieve the purpose, the invention adopts the technical scheme that:
an automatic grouting device for mounting a single-point displacement meter comprises a grouting system, a base section for mounting the system, a hollow section for mounting the single-point displacement meter and an anchoring section;
the hollow section comprises a hollow pipe, one end of the hollow pipe is connected with the anchoring section through a sealing steel plate I, and the other end of the hollow pipe is connected with the base section through a sealing steel plate II;
the grouting system comprises a grouting pump, the grouting pump is connected with a grouting hose, the grouting hose is connected with a grouting pipe body, and the free end of the grouting pipe body is connected with a grouting pipe head; the grouting system is characterized in that a rotating disc used for driving the grouting pipe to advance and retreat is arranged on the grouting pipe, a grouting liquid flow sensor is connected to the grouting hose, the grouting system further comprises a slurry discharging pipe body arranged in parallel with the grouting pipe body, a slurry discharging pipe head is connected to the free end of the slurry discharging pipe body, the other end of the slurry discharging pipe body is connected with the slurry discharging hose, a slurry discharging liquid flow sensor is arranged on the slurry discharging hose, and the grouting liquid flow sensor, the slurry discharging liquid flow sensor and a driving motor of the grouting pump are connected with a grouting control console.
The automatic grouting device for mounting the single-point displacement meter is characterized in that the anchoring section comprises an anchoring head, and the anchoring head is connected to the outer side of the first sealing steel plate.
The automatic grouting device for mounting the single-point displacement meter is characterized in that the base section comprises a flange plate, and an expansion bolt is arranged on the flange plate.
The automatic grouting device for mounting the single-point displacement meter comprises a pull rod connected with the anchoring head, the pull rod is arranged in the hollow pipe, the other end of the pull rod is connected with a displacement sensor, and the displacement sensor is mounted on the second sealing steel plate.
The automatic grouting device for mounting the single-point displacement meter is characterized in that a check valve is arranged in the grouting pipe body.
The automatic grouting device for mounting the single-point displacement meter is characterized in that the grouting pipe body and the slurry discharging pipe body are both external threaded pipes, and the grouting pipe body and the first sealing steel plate, the second sealing steel plate and the flange plate are connected through threads.
The automatic grouting device for mounting the single-point displacement meter is characterized in that the end part of the slurry discharge pipe head is provided with a hole, and the position of the hole is far away from the slurry discharge pipe body when the automatic grouting device is used for upward grouting; when the grouting pipe is used for downward grouting, the opening position is close to the grout discharging pipe body.
The automatic grouting device for the installation of the single-point displacement meter is characterized in that the end parts of the grouting pipe head and the slurry discharge pipe head are respectively provided with a filter screen.
The method for installing the single-point displacement meter by the automatic grouting device installed with the single-point displacement meter in the segmented grouting mode comprises the following steps:
(1) positioning and drilling: positioning the position of the monitoring hole and drilling according to the monitoring requirement;
(2) the grouting device is installed and fixed: cleaning the plane of the bedrock, inserting the grouting device into the grouting hole, fixing the whole grouting device on the bedrock by adopting an expansion bolt, and simultaneously ensuring that the grouting pipe head and the grout discharging pipe head respectively penetrate through the outer side of the first sealing steel plate;
(3) grouting an anchoring section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting control console, when the grouting flow is equal to the slurry discharge flow and the slurry discharge pipe stably discharges slurry, the controller of the grouting control console judges that the grouting is stopped, and the grouting is finished; after grouting, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the anchoring section; installing pipe heads for the grouting pipe body and the slurry discharge pipe body again, and pushing the pipe heads into the base section;
(4) grouting the base section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting control console, when the grouting flow is equal to the slurry discharge flow and the slurry discharge pipe stably discharges slurry, the controller of the grouting control console judges that the grouting is stopped, and the grouting is finished; and after the grouting of the base section is finished, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the base section to finish the whole grouting process.
Has the advantages that:
compared with the prior art, the technical scheme provided by the invention has the advantages that:
1. the hollow section is positioned between the anchoring section and the base section, so that cement slurry cannot permeate into the displacement meter, the use amount of the cement slurry is effectively reduced, and the economic benefit is improved. Meanwhile, the joint of the pull rod and the displacement sensor is isolated from the slurry by a sealing steel plate, and waterproof slurry permeates into the displacement sensor, so that the installation survival rate of the single-point displacement meter is improved.
2. In the automatic grouting device, the grouting control console judges whether to stop grouting according to the signal of the liquid flow sensor and sends an instruction to the motor of the grouting pump through the servo driver, so that the grouting process is controlled in real time, the grouting stopping time is accurately controlled, and the grouting quality is ensured.
3. The invention adopts the form of the corresponding slurry discharge pipe head to meet the requirements of grouting at all angles: when the grouting pipe is used for upward grouting, the opening position at the end part of the grouting pipe head is far away from the grouting pipe body; when the grouting pipe is used for downward grouting, the opening position is close to the grout discharging pipe body.
Drawings
Fig. 1 is a schematic structural diagram of an automatic grouting device for single-point displacement meter installation according to an embodiment of the invention;
FIG. 2 is a schematic illustration of a void section in an embodiment of the present invention;
FIG. 3 is a schematic illustration of grouting an anchor section according to an embodiment of the invention;
FIG. 4 is a schematic illustration of a base section grouting according to an embodiment of the invention;
FIG. 5 is a flowchart of a grouting start-stop control according to an embodiment of the present invention;
FIG. 6 is a schematic view of a grouting tip and a grout discharge tip according to an embodiment of the present invention;
the figure shows that: 1-anchoring head, 2-pull rod, 3-displacement sensor, 4-flange plate, 5-expansion bolt, 6-lead, 7-grouting pipe head, 8-grouting pipe body, 9-grout discharge pipe head, 10-grout discharge pipe body, 11(1) -sealing steel plate I; 11(2) -sealing steel plate II, 12-sealing rubber ring, 13-check valve, 14-hollow pipe, 15-rotating disk, 16-grouting hose, 17-grouting hose, 18-grouting liquid flow sensor, 19-grouting liquid flow sensor, 20-grouting pump, 21-motor, 22-grouting console, 23-anchoring section, 24-hollow section, 25-base section, 26-bedrock, 701-grouting pipe head end screw thread, 702-grouting pipe head double screw thread, 703-grouting pipe head filter screen, 901-upward grouting pipe head end screw thread, 902-upward grouting pipe head double screw thread, 903-upward grouting pipe head filter screen, 904-downward grouting pipe head end screw thread, 905-downward grouting pipe head double screw thread, 906-discharge of slurry pipe head filter screen during downward grouting.
Detailed Description
As shown in fig. 1 to 6, the automatic grouting device for single-point displacement meter installation of the present embodiment includes a grouting system, a foundation section for system installation, a hollow section for single-point displacement meter installation, and an anchoring section; the hollow section is positioned between the anchoring section and the base section, so that cement slurry cannot permeate into the displacement meter, the use amount of the cement slurry is effectively reduced, and the economic benefit is improved. Meanwhile, the joint of the pull rod and the displacement sensor is isolated from the slurry by the sealing steel plate, so that the cement slurry is prevented from permeating into the displacement sensor, and the accuracy of displacement monitoring data is greatly improved. The range of the anchoring section is from the hole bottom to the first sealing steel plate of the hollow section, and the range of the base section is from the second sealing steel plate of the hollow section to the flange plate.
The hollow section comprises a hollow pipe 14, one end of the hollow pipe 14 is connected with the anchoring section through a first sealing steel plate 11(1), and the other end of the hollow pipe 14 is connected with the base section through a second sealing steel plate 11 (2);
the grouting system comprises a grouting pump 20, the grouting pump 20 is connected with a grouting hose 16, the grouting hose 16 is connected with a grouting pipe body 8, and the free end of the grouting pipe body 8 is connected with a grouting pipe head 7; the grouting system is characterized in that a rotating disk 15 used for driving the grouting pipe to advance and retreat is arranged on the grouting pipe body 8, a grouting liquid flow sensor 18 is connected to the grouting hose 16, the grouting system further comprises a slurry discharging pipe body 10 arranged in parallel with the grouting pipe body, a slurry discharging pipe head 9 is connected to the free end of the slurry discharging pipe body, a slurry discharging hose 17 is connected to the other end of the slurry discharging pipe body, a slurry discharging liquid flow sensor 19 is arranged on the slurry discharging hose, and the grouting liquid flow sensor 18, the slurry discharging liquid flow sensor 19 and a driving motor 21 of the grouting pump 20 are connected with a grouting control console 22. In the grouting start-stop control flowchart of this embodiment, as shown in fig. 5, a grouting console 22 starts a grouting pump motor 21, and first, a grouting liquid flow sensor 18 and a discharge liquid flow sensor 19 perform signal data self-checking, and acquire signal data after detecting normal; otherwise, maintaining and checking until normal. The flow analog signals collected by the grouting liquid flow sensor 18 and the slurry discharge liquid flow sensor 19 are transmitted to the AD converter, and the AD converter converts the received analog signals into digital signals and transmits the digital signals to the controller in real time. When the grouting and discharging flow ratio is less than 1, the controller in the grouting control console judges to continue grouting, a continuous grouting instruction is sent to a motor 21 of the grouting pump through a servo driver, and the grouting pump continues to work; when the ratio of the grouting and discharging flow is greater than 1 and the ratio rises rapidly, a dangerous case is prompted, the water gushing phenomenon of a stratum aquifer in a grouting hole can occur, a controller in a grouting control console judges that grouting is stopped, a grouting stopping instruction is sent to a motor 21 of a grouting pump through a servo driver, the grouting pump stops working, and active treatment is carried out on site; when the grouting and discharging flow ratio is 1 and the discharging pipe stably discharges slurry, the controller in the grouting control console judges to stop grouting, a grouting stopping instruction is sent to the motor 21 of the grouting pump through the servo driver, the grouting pump stops working, and grouting is completed.
The anchoring section comprises an anchoring head 1 which is connected to the outer side of the first sealing steel plate 11 (1).
The base section comprises a flange plate 4, and expansion bolts 5 are arranged on the flange plate. Set up 4 expansion bolt holes on the ring flange 4, the aperture is 16mm, 1 slip casting pipe hole, and the aperture is 25mm, 1 arranges the thick liquid pipe hole, and the aperture is 20 mm. The outer diameter of the grouting pipe 8 is 25mm, and the wall thickness is 3 mm. The external diameter of the slurry discharge pipe 10 is 20mm, the wall thickness is 2.5mm, and smooth passing of cement slurry can be guaranteed.
The single-point displacement meter comprises a pull rod 2 connected with the anchoring head, the pull rod 2 is arranged in the PVC pipe 14, the other end of the pull rod 2 is connected with a displacement sensor 3, and the displacement sensor 3 is installed on the second sealing steel plate 11 (2).
A check valve 13 is arranged in the grouting pipe body.
The grouting pipe body and the slurry discharging pipe body are both external threaded pipes, and the grouting pipe body and the slurry discharging pipe body are connected with the sealing steel plate I, the sealing steel plate II and the flange plate through threads.
The end part of the slurry discharge pipe head is provided with a hole, and when the slurry discharge pipe head is used for upward grouting, the position of the hole is far away from the slurry discharge pipe body; when the grouting pipe is used for downward grouting, the opening position is close to the grout discharging pipe body. Fig. 6 is a schematic view of a grouting pipe head and a slurry discharge pipe head according to the present invention. (a) The part is a grouting pipe head and comprises pipe head end part threads 701, pipe head double threads 702 and a pipe head filter screen 703; (d) the part is a section view of the grouting pipe head; (b) the part is a slurry discharging pipe head during upward grouting, and comprises pipe head end part threads 901, pipe head double threads 902 and a pipe head filter screen 903; (e) the part is a section view of the slurry discharge pipe head during upward grouting; (c) the part is a slurry discharging pipe head during downward grouting, and comprises pipe head end part threads 904, pipe head double threads 905 and a pipe head filter screen 906; (e) the part is a section view of the slurry discharge pipe head when downward slurry is injected.
The double threads are used for connecting the pipe head with the grouting pipe body or the slurry discharging pipe body while being connected with the sealing steel plate.
The end parts of the grouting pipe head and the slurry discharge pipe head are respectively provided with a filter screen. The filter screen has the advantages that when the grouting pipe body or the slurry discharge pipe body is separated from the pipe head, free flow of cement slurry is avoided under the action of self-weight pressure, the cement slurry can stably flow in and be discharged under the action of grouting pressure, and the ideal size of a filter screen grid is about 1 mm.
The method for installing the single-point displacement meter by the automatic grouting device installed with the single-point displacement meter in the segmented grouting mode comprises the following steps:
(1) positioning and drilling: positioning the position of the monitoring hole and drilling according to the monitoring requirement;
(2) the grouting device is installed and fixed: cleaning the plane of the bedrock, inserting the grouting device into the grouting hole, fixing the whole grouting device on the bedrock by adopting an expansion bolt, and simultaneously ensuring that the grouting pipe head and the grout discharging pipe head respectively penetrate through the outer side of the first sealing steel plate;
(3) grouting an anchoring section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting console, when the grouting flow is equal to the slurry discharge flow, the controller of the grouting console judges that grouting is stopped, and grouting is finished; after grouting, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the anchoring section; installing pipe heads for the grouting pipe body and the slurry discharge pipe body again, and pushing the pipe heads into the base section;
(4) grouting the base section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting console, when the grouting flow is equal to the slurry discharge flow, the controller of the grouting console judges that grouting is stopped, and grouting is finished; and after the grouting of the base section is finished, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the base section to finish the whole grouting process.
After the installation is finished, the working process of the single-point displacement meter is as follows: when the rock mass collapses or is locally deformed unevenly, the rock mass stretches or compresses the pull rod 2, so that the pull rod 2 can do cutting magnetic induction line motion in the displacement sensor 3 to generate an electric signal, and the displacement can be indirectly measured. During this process the forces of deformation of the rock mass will break the hollow tube 14 and the hollow tube 14 will not affect the relative movement of the tie rod 2.
The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.
Claims (2)
1. An automatic grouting device for mounting a single-point displacement meter is characterized by comprising an automatic grouting system, a base section for mounting the automatic grouting system, a hollow section for mounting the single-point displacement meter and an anchoring section;
the hollow section comprises a hollow pipe, one end of the hollow pipe is connected with the anchoring section through a sealing steel plate I, and the other end of the hollow pipe is connected with the base section through a sealing steel plate II;
the automatic grouting system comprises a grouting pump, the grouting pump is connected with a grouting hose, the grouting hose is connected with a grouting pipe body, and the free end of the grouting pipe body is connected with a grouting pipe head; the automatic grouting system comprises a grouting pipe body, a grouting hose, a grouting control console, a rotating disc, a grouting pipe head, a grouting hose, a grouting pipe head, a grouting pump, a grouting control console and a grouting pump, wherein the rotating disc is used for driving the grouting pipe body to advance and retreat;
the anchoring section comprises an anchoring head, and the anchoring head is connected to the outer side of the first sealing steel plate;
the base section comprises a flange plate, and expansion bolts are arranged on the flange plate;
the single-point displacement meter comprises a pull rod connected with the anchoring head, the pull rod is arranged in the hollow pipe, the other end of the pull rod is connected with a displacement sensor, and the displacement sensor is installed on the second sealing steel plate;
a check valve is arranged in the grouting pipe body;
the grouting pipe body and the slurry discharging pipe body are both external threaded pipes, and are in threaded connection with the sealing steel plate I, the sealing steel plate II and the flange plate;
the end part of the slurry discharge pipe head is provided with a hole, and when the slurry discharge pipe head is used for upward grouting, the position of the hole is far away from the slurry discharge pipe body; when the grouting pipe is used for downward grouting, the opening position is close to the grout discharging pipe body;
the end parts of the grouting pipe head and the slurry discharge pipe head are respectively provided with a filter screen.
2. A method for single point displacement meter sectional grouting installation by using the automatic grouting device for single point displacement meter installation of claim 1, characterized by comprising the following steps:
(1) positioning and drilling: positioning the position of the monitoring hole and drilling according to the monitoring requirement;
(2) the grouting device is installed and fixed: cleaning the plane of the bedrock, inserting the grouting device into the grouting hole, fixing the whole grouting device on the bedrock by adopting an expansion bolt, and simultaneously ensuring that the grouting pipe head and the grout discharging pipe head respectively penetrate through the outer side of the first sealing steel plate;
(3) grouting an anchoring section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting control console, when the grouting flow is equal to the slurry discharge flow and the slurry discharge pipe stably discharges slurry, the controller of the grouting control console judges that the grouting is stopped, and the grouting is finished; after grouting, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the anchoring section; installing pipe heads for the grouting pipe body and the slurry discharge pipe body again, and pushing the pipe heads into the base section;
(4) grouting the base section: starting a grouting pump by a grouting console to start grouting; the signal of the liquid flow sensor is transmitted to the grouting control console, when the grouting flow is equal to the slurry discharge flow and the slurry discharge pipe stably discharges slurry, the controller of the grouting control console judges that the grouting is stopped, and the grouting is finished; and after the grouting of the base section is finished, withdrawing the grouting pipe body and the slurry discharging pipe body, and permanently keeping the grouting pipe head and the slurry discharging pipe head in the base section to finish the whole grouting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133622.7A CN111335921B (en) | 2020-02-28 | 2020-02-28 | Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133622.7A CN111335921B (en) | 2020-02-28 | 2020-02-28 | Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111335921A CN111335921A (en) | 2020-06-26 |
| CN111335921B true CN111335921B (en) | 2021-07-30 |
Family
ID=71183992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010133622.7A Active CN111335921B (en) | 2020-02-28 | 2020-02-28 | Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111335921B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031822B (en) * | 2020-08-19 | 2022-10-25 | 北京大地高科地质勘查有限公司 | Be used for colliery roof slip casting to consolidate with automatic horizontal slip casting equipment |
| CN113008440B (en) * | 2021-03-10 | 2023-01-10 | 山东科技大学 | Flexible liquid injection sensor detection method based on genetic algorithm optimization neural network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882568A (en) * | 2017-11-29 | 2018-04-06 | 山东大学 | Single-point displacement meter grouting device and method suitable for tunnel engineering |
| CN109681249A (en) * | 2019-01-25 | 2019-04-26 | 山东焱鑫矿用材料加工有限公司 | Mining slip casting anchor cable construction method is vented in one kind |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090500A2 (en) * | 2009-02-09 | 2010-08-12 | 주식회사 상신산업 | Expandable rock bolt tube |
| CN102268868A (en) * | 2010-06-02 | 2011-12-07 | 中国京冶工程技术有限公司 | Repeated adaptive grouting system and construction method |
| CN201857984U (en) * | 2010-10-30 | 2011-06-08 | 中国矿业大学 | Fast mounting device for resin anchor rod |
| CN202416314U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Grouting bag type enlarged-end anchor rod |
| CN103850696B (en) * | 2014-01-22 | 2016-04-13 | 山东科技大学 | Multistage anchoring type grouting rock bolt and anchoring process thereof |
| CN206174965U (en) * | 2016-10-20 | 2017-05-17 | 北京瑞腾基础工程技术有限公司 | Double entry slip casting pipe slip casting device |
| CN206592139U (en) * | 2016-12-22 | 2017-10-27 | 山东科技大学 | A kind of external poured is segmented anchoring rod |
| CN108677944B (en) * | 2018-06-29 | 2020-08-14 | 北京矿务局综合地质工程公司 | Partition type high-pressure hole plugging grouting anchor rod and grouting method thereof |
| CN208870623U (en) * | 2018-08-30 | 2019-05-17 | 沈阳建筑大学 | The detachable anchor supporting construction of roadway support |
| CN110230511B (en) * | 2019-06-21 | 2020-10-09 | 安徽理工大学 | Anchor grouting device capable of exhausting gas for common anchor rod and using method thereof |
| CN110748368A (en) * | 2019-11-29 | 2020-02-04 | 西南交通大学 | Timely active supporting and anchoring system and method |
-
2020
- 2020-02-28 CN CN202010133622.7A patent/CN111335921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882568A (en) * | 2017-11-29 | 2018-04-06 | 山东大学 | Single-point displacement meter grouting device and method suitable for tunnel engineering |
| CN109681249A (en) * | 2019-01-25 | 2019-04-26 | 山东焱鑫矿用材料加工有限公司 | Mining slip casting anchor cable construction method is vented in one kind |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111335921A (en) | 2020-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108678777B (en) | Support method for tunnel fault fracture zone section | |
| CN104594348B (en) | Enlarged footing bellows anchor pole and construction method thereof | |
| CN111335921B (en) | Automatic grouting device for mounting single-point displacement meter and sectional grouting mounting method | |
| CN108661650B (en) | Construction method for deep and large vertical shaft in water-rich rock-magma area | |
| CN100557146C (en) | Fast plugging device for deep foundation pit precipitation well | |
| CN111945713A (en) | Construction method for grouting after rock-socketed inclined pile of offshore wind power foundation steel pipe pile | |
| CN108756910B (en) | Intelligent early warning type advanced grouting device for earth pressure balance shield and construction method | |
| CN105350953A (en) | Measuring method for coal seam gas pressure in complicated geological condition | |
| CN210396723U (en) | Gas pressure measuring device for double-hole pressure measurement | |
| CN205369231U (en) | Steel -pipe pile is filled in drilling | |
| CN109915070A (en) | The down-hole coal bed test gas pressure hole sealing device of one kind and method | |
| CN109629845A (en) | Concrete structure seam areas leakage treatment device and its construction method | |
| CN110593254A (en) | Construction method of cast-in-situ bored pile in stratum with karst cave in joint zone | |
| JP4036303B2 (en) | Ground injection method | |
| CN210829334U (en) | Hollow anchor rod with geological exploration and anchoring functions | |
| CN201218073Y (en) | Drill hole pipe reinforcing device | |
| CN108612546B (en) | Horizontal grouting construction method in closed environment | |
| CN109681240B (en) | Device and method for installing osmometer of tunnel lining water pressure monitoring system | |
| CN205116159U (en) | Supporting rig dry process pore -forming bored concrete pile that digs soon of back slip casting | |
| CN105178966A (en) | Grouting process for water blocking by wall breaking for mine vertical shafts | |
| CN218291937U (en) | Slip casting stock suitable for regional support of infiltration | |
| CN114892675B (en) | Foundation pit supporting structure with function of measuring foundation pit construction parameters | |
| CN103453843A (en) | Installation method of tunnel ruler-free measurement detachable reflector | |
| CN110630304A (en) | Hollow anchor rod with geological detection and anchoring functions and exhaust grouting method thereof | |
| CN105019458A (en) | Deep and thick sand layer covered karst cave grouting system device and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |