CN215672212U - Automatic pressure-measuring grouting system for tunnel portal suitable for high-water pressure condition pipe-jacking construction - Google Patents
Automatic pressure-measuring grouting system for tunnel portal suitable for high-water pressure condition pipe-jacking construction Download PDFInfo
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- CN215672212U CN215672212U CN202121934906.2U CN202121934906U CN215672212U CN 215672212 U CN215672212 U CN 215672212U CN 202121934906 U CN202121934906 U CN 202121934906U CN 215672212 U CN215672212 U CN 215672212U
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Abstract
The utility model relates to the technical field of pipe-jacking construction, and discloses an automatic pressure-measuring grouting system for a tunnel portal, which is suitable for pipe-jacking construction under a high water pressure condition, is applied to an assembled tunnel portal water-stopping device and a tunnel portal embedded steel ring, and comprises: a slurry mixing system; the grouting system is communicated with the slurry mixing system; the grouting system comprises grouting pipes extending to the assembled tunnel portal water stopping device and the tunnel portal embedded steel ring; the measurement and control system comprises a pressure sensor arranged on the assembled tunnel portal water stop device, a liquid level sensor arranged in the slurry mixing system and a data transmission module respectively and electrically connected with the pressure sensor and the liquid level sensor; the control platform is respectively and electrically connected with the grouting system and the data transmission module. The tunnel portal automatic pressure-measuring grouting system suitable for pipe-jacking construction under the high water pressure condition, provided by the utility model, has a good monitoring function so as to be convenient for workers to adjust in time, and is simple in structure and high in automation degree.
Description
Technical Field
The utility model relates to the technical field of pipe jacking construction, in particular to an automatic pressure measuring and grouting system for a tunnel portal, which is suitable for pipe jacking construction under high water pressure conditions.
Background
In engineering practice, pipe jacking construction inevitably encounters rich water conditions. Particularly, under the condition of high water pressure, accidents such as water gushing, sand gushing or ground subsidence easily occur in pipe jacking construction, and the safety of surrounding buildings, structures, pipelines and roads can be seriously threatened. Therefore, the requirement of pipe jacking construction on the tunnel portal water stopping device is high.
The traditional pipe-jacking tunnel portal water stopping device is fixed on a tunnel portal embedded steel ring through rubber curtain cloth, and the sealing water stopping of the tunnel portal is realized through structures such as a pressing plate, a turning plate and a bolt. However, the traditional pipe-jacking portal water-stopping device lacks an effective monitoring means for thick mud in the portal ring and cannot be adjusted in time, so that the rubber curtain cloth in the pipe-jacking portal water-stopping device is easily abraded or torn by the jacking pipe joint, a gap is formed between the rubber curtain cloth and the pipe joint, and the water-stopping sealing effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art, and provides the tunnel portal automatic pressure measuring and grouting system which has a good monitoring function so as to be convenient for workers to adjust in time, has a simple structure and high automation degree and is suitable for high-water-pressure condition pipe jacking construction.
In order to achieve the purpose, the utility model adopts the following scheme:
the utility model provides an automatic pressure measurement slip casting system in portal suitable for construction of high water pressure condition push pipe, is applied to on pin-connected panel portal stagnant water device and the pre-buried steel ring in portal, includes:
a slurry mixing system;
the grouting system is communicated with the slurry mixing system; the grouting system comprises grouting pipes extending to the assembled tunnel portal water stopping device and the tunnel portal embedded steel ring;
the measurement and control system comprises a pressure sensor arranged on the assembled tunnel portal water stopping device, a liquid level sensor arranged in the slurry mixing system and a data transmission module which is electrically connected with the pressure sensor and the liquid level sensor respectively;
and the control platform is electrically connected with the grouting system and the data transmission module respectively.
Further, the slurry mixing system comprises a slurry mixer and a slurry storage box; the slurry mixing machine is communicated with the slurry storage box; the liquid level sensor is arranged in the slurry storage tank and used for monitoring the liquid level of the thick slurry in the slurry storage tank.
Further, the grouting system also comprises a grouting pump and a valve; the grouting pump is communicated between the grout storage box and the grouting pipe and is electrically connected with the control platform; the valve is arranged on the grouting pipe.
Furthermore, the control platform comprises a data receiving module, a controller, a data display, a liquid level early warning device and a pressure early warning device; the data receiving module is electrically connected with the data transmission module; the data receiving module is electrically connected with the controller respectively; the controller is respectively electrically connected with the data display, the liquid level early warning device, the pressure early warning device and the grouting system.
Furthermore, the assembled hole door water stopping device comprises a combined steel ring, an inflatable water stopping rubber ring and a water stopping rubber pad, wherein the combined steel ring is installed on the hole door embedded steel ring, and the water stopping rubber pad is arranged between the combined steel ring and the hole door embedded steel ring; an inflatable water-stopping rubber ring is arranged in the combined steel ring;
at least 4 pressure sensors are uniformly distributed around the combined steel ring.
Further, the grouting pipe comprises a main grouting pipe, a first grouting branch pipe and a second grouting branch pipe; one end of the grouting main pipe is communicated with the grouting pump; the other ends of the first grouting branch pipes are respectively communicated with the first grouting branch pipes; the first grouting branch pipe is arranged along the outer ring of the combined steel ring; one end of the second grouting branch pipe is perpendicular to the first grouting branch pipe and communicated with the first grouting branch pipe, and the other end of the second grouting branch pipe penetrates through the outer ring of the combined steel ring to reach the inner ring of the combined steel ring.
Further, the valves include electrically operated valves and manually operated valves; the electric valve and the manual valve are both arranged on the main grouting pipe; the electric valve is electrically connected with the control platform.
Furthermore, at least two liquid level sensors are distributed in the pulp storage box.
Compared with the prior art, the utility model has the following advantages:
1. the utility model provides thick mud for pipe-jacking construction by utilizing a mud mixing system, the thick mud is injected into a gap formed by an assembled type hole door water-stopping device, a hole door embedded steel ring and a pipe joint by a grouting system, the liquid level (storage amount) and the pressure of the thick mud are monitored in real time by a measurement and control system, the storage amount of the thick mud in the mud mixing system is monitored in real time by a liquid level sensor, the working personnel can conveniently know and reasonably adjust and control the storage amount of the thick mud in the mud mixing system, the pressure of the thick mud in the gap formed by the assembled type hole door water-stopping device, the hole door embedded steel ring and the pipe joint is monitored in real time by a pressure sensor, the mixing process and the grouting process of the thick mud are controlled by a control platform, the pressure of the thick mud is timely adjusted, the sealing performance and the water-stopping performance of the assembled type hole door water-stopping device are ensured, the safety of pipe-jacking construction is ensured, and the utility model has informatization and intellectualization, Integration and the like.
2. The storage amount of the thick mud in the mud storage tank is monitored in real time by arranging the liquid level sensor, so that the storage amount of the thick mud can be ensured in a practical manner, waste caused by excessive production can be avoided, and the mixed thick mud is environment-friendly and nontoxic and conforms to the concept of 'green, safe, environment-friendly and efficient'.
Drawings
The present application will be described in further detail with reference to the following drawings and detailed description.
Fig. 1 is a schematic structural diagram of an automatic pressure-measuring grouting system for a tunnel portal, which is suitable for high-water pressure condition pipe-jacking construction and is applied to an assembled tunnel portal water-stopping device and a tunnel portal embedded steel ring.
Fig. 2 is a schematic structural diagram of the assembled hole gate water stopping device, the hole gate embedded steel ring, the pipe joint and the grouting pipe.
FIG. 3 is a schematic structural diagram of a first grouting branch pipe, a second grouting branch pipe and a pressure sensor on a combined steel ring.
FIG. 4 is a schematic block diagram of the electrical connection of each structure of the tunnel portal automatic pressure measuring grouting system suitable for high water pressure condition pipe jacking construction.
The figure includes:
the system comprises a slurry mixing system 1, a slurry mixing machine 11, a slurry storage tank 12, a grouting system 2, a grouting pipe 21, a grouting main pipe 211, a first grouting branch pipe 212, a second grouting branch pipe 213, a grouting pump 22, a valve 23, an electric valve 231, a manual valve 232, a measurement and control system 3, a pressure sensor 31, a liquid level sensor 32, a data transmission module 33, a control platform 4, a data receiving module 41, a controller 42, a data display 43, a liquid level early warning device 44, a pressure early warning device 45, a spliced type tunnel door water stopping device 5, a combined steel ring 51, an inflatable water stopping rubber ring 52, a water stopping rubber pad 53, a tunnel door embedded steel ring 6, a pipe joint 7 and a working well 8.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
It should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "middle", and the like, which indicate the orientation or position, are used in the drawings of the present embodiment for convenience of description, and should not be construed as limiting the present disclosure.
The embodiment is from a rectangular pipe jacking project for crossing a canal, the section size of the pipe jacking is 9.8 multiplied by 5.9m, the thickness of the river bed covering soil is about 4.5m, the depth of the canal water is about 1.0 m-4.3 m, the crossing stratum is mainly a silt layer, and the maximum water pressure is about 0.16 MPa.
As shown in fig. 1 to 4, the rectangular pipe jacking project comprises a pipe jacking working well 8, an assembled type tunnel portal water stopping device 5, a tunnel portal embedded steel ring 6 and a pipe joint 7. The assembled tunnel portal water stopping device 5 comprises a combined steel ring 51, an inflatable water stopping rubber ring 52 and a water stopping rubber pad 53, wherein the combined steel ring 51 is installed on the tunnel portal embedded steel ring 6, and the water stopping rubber pad 53 is arranged between the combined steel ring 51 and the tunnel portal embedded steel ring 6 and used for stopping water; an inflatable water-stopping rubber ring 52 is arranged in the combined steel ring 51; after the inflation is finished, an annular gap can be formed between the inflatable water-stopping rubber ring 52 and the portal embedded steel ring 6, the pipe joint 7 and the soil body, thick slurry with certain pressure is injected into the gap in a pressing mode to prevent underground water and the soil body from flowing into the pipe-jacking working well 8, and if necessary, a traditional water-stopping device can be further installed on the assembled portal water-stopping device 5 to strengthen water stopping.
An automatic pressure-measuring grouting system for a tunnel portal suitable for high-water pressure condition pipe-jacking construction is applied to an assembled tunnel portal water-stopping device 5 and a tunnel portal embedded steel ring 6 and comprises a slurry mixing system 1, a grouting system 2, a measurement and control system 3 and a control platform 4. The slurry mixing system 1 is used for mixing thick slurry and temporarily storing the thick slurry. The grouting system 2 is communicated with the slurry mixing system 1; the grouting system 2 comprises a grouting pipe 21 extending to the assembled hole gate water stopping device 5 and the hole gate embedded steel ring 6. The measurement and control system 3 comprises a pressure sensor 31 arranged on the assembled hole door water stopping device 5, a liquid level sensor 32 arranged in the slurry mixing system 1 and a data transmission module 33 respectively electrically connected with the pressure sensor 31 and the liquid level sensor 32; the control platform 4 is electrically connected with the grouting system 2 and the data transmission module 33 respectively, and the control platform 4 can control the slurry mixing system 1 and the grouting system 2 to work.
The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition utilizes the slurry mixing system 1 to provide thick slurry for pipe-jacking construction mixing, the grouting system 2 injects the thick slurry into a gap formed by the assembled tunnel portal water-stopping device 5, the tunnel portal embedded steel ring 6 and the pipe joint 7, then the monitoring system 3 monitors the liquid level (storage amount) and the pressure in real time, the liquid level sensor 32 monitors the storage amount of the thick slurry in the slurry mixing system 1 in real time, the monitored liquid level information is fed back to the control platform 4 through the data transmission module 33, and a worker regulates and controls the slurry mixing system 1 to work according to the display information of the control platform 4, so that the slurry mixing system 1 reasonably controls the storage amount of the mixed thick slurry, the storage amount of the thick slurry can be ensured in a real-time manner, and waste caused by excessive production can be avoided; the pressure of thick slurry in a gap formed by the assembled type hole door water stopping device 5, the hole door embedded steel ring 6 and the pipe joint 7 is monitored in real time by using the pressure sensor 31, the monitored pressure information is fed back to the control platform 4 through the data transmission module 33, the control platform 4 controls the grouting system 2 to work, the grouting system 2 controls the thick slurry to be conveyed, the pressure of the thick slurry is adjusted in time, the sealing performance and the water stopping performance of the assembled type hole door water stopping device 5 are guaranteed, the pipe jacking construction safety is guaranteed, and the assembled type hole door water stopping device has the advantages of informatization, intellectualization, integration and the like.
The slurry mixing system 1 comprises a slurry mixer 11 and a slurry storage box 12; the slurry mixing machine 11 is communicated with the slurry storage box 12; the liquid level sensor 32 is arranged in the slurry storage tank 12 and used for monitoring the liquid level of the thick slurry in the slurry storage tank 12. The slurry stirring machine 11 and the slurry storage tank 12 are both arranged beside the pipe-jacking working well 8, bentonite, clear water, additives and other materials are added into the slurry stirring machine 11 for stirring thick slurry, the stirred thick slurry has certain plastic fluidity and good water stopping performance, and cannot be separated within a certain time, and the additives are environment-friendly and nontoxic. The slurry storage tank 12 is used for temporarily storing the thick slurry mixed by the slurry mixer 11, the storage amount of the thick slurry in the slurry storage tank 12 is monitored in real time by arranging the liquid level sensor 32 in the slurry storage tank 12, the monitored liquid level information is fed back to the control platform 4 through the data transmission module 33, and a worker regulates and controls the slurry mixing system 1 to work according to the display information of the control platform 4, so that the slurry mixing system 1 reasonably controls the storage amount of the mixed thick slurry, the storage amount of the thick slurry can be really ensured, and waste caused by excessive production can be avoided; and the mixed thick slurry is environment-friendly and nontoxic, and accords with the concept of 'green, safety, environmental protection and high efficiency'.
Preferably, at least two liquid level sensors 32 are distributed in the slurry storage tank 12. At least two liquid level sensors 32 are arranged in the slurry storage tank 12, the storage amount of the thick slurry in the slurry storage tank 12 is monitored in real time in a multi-position, multi-angle and multi-quantity mode through the at least two liquid level sensors 32, monitoring information is generated and is conveyed to the data transmission module 33, then the monitored liquid level information is fed back to the control platform 4 through the data transmission module 33, a worker regulates and controls the slurry mixing system 1 to work according to the display information of the control platform 4, the slurry mixing system 1 is enabled to reasonably control the storage amount of the mixed thick slurry, and the monitoring accuracy is guaranteed.
Further, the grouting system 2 further comprises a grouting pump 22 and a valve 23; the grouting pump 22 is communicated with the grout storage tank 12, communicated with the grouting pipe 21 and electrically connected with the control platform 4; the valve 23 is arranged on the grouting pipe 21. The grouting pump 22 is arranged beside the pipe-jacking working well 8, is communicated with the slurry storage tank 12 and is connected with the control platform 4, and can be automatically started after the grouting pump 22 receives a starting control signal of the control platform 4, sucks thick slurry from the slurry storage tank 12, injects the thick slurry into the grouting pipe 21, and can be automatically closed after receiving a closing control signal of the control platform 4; realize the automatic transport of thick mud, the efficiency of construction is high-efficient, helps to accelerate to seal and the stagnant water to pin-connected panel entrance to a cave watertight fittings 5.
Wherein the valve 23 comprises an electric valve 231 and a manual valve 232; the electric valve 231 and the manual valve 232 are both arranged on the main grouting pipe 211; the electric valve 231 is electrically connected with the control platform 4, the electric valve 231 can be automatically opened after receiving an opening control signal of the control platform 4, and can be automatically closed after receiving a closing control signal, so that the automation is high, and manual operation is not needed; the manual valve 232 is used in emergency.
The grouting pipe 21 comprises a main grouting pipe 211, a first grouting branch pipe 212 and a second grouting branch pipe 213; one end of the grouting main pipe 211 is communicated with the grouting pump 22; the other ends of the first grouting branch pipes are respectively communicated with the first grouting branch pipes 212; the first grouting branch pipe 212 is arranged along the outer ring of the combined steel ring 51; one end of the second grouting branch pipe 213 is perpendicular to the first grouting branch pipe 212 and is communicated with the first grouting branch pipe 212, and the other end passes through the outer ring of the combined steel ring 51 to the inner ring of the combined steel ring 51. During grouting, thick slurry flows into the first grouting branch pipe 212 from the grouting main pipe 211, then flows into gaps among the assembled portal water stopping device 5, the portal embedded steel ring 6 and the pipe joints 7 through the second grouting branch pipe 213 and through the combined steel ring 51, so that construction of sealing performance and water stopping performance among the assembled portal water stopping device 5, the portal embedded steel ring 6 and the pipe joints 7 is realized, and automation is high.
Preferably, at least 4 pressure sensors 31 are uniformly distributed around the combined steel ring 51. Through setting up 4 at least pressure sensor 31, can the multi-angle, the multiposition, many accurately monitor the pressure information that gets dense mud in the pre-buried steel ring of entrance to a cave 6 and the 7 clearances of tube coupling in quantity, guarantee the accuracy of monitoring, and the pressure information feedback that will monitor through data transmission module 33 to control platform 4, and control slip casting system 2 work through control platform 4, slip casting system 2 control dense mud is carried, in time adjust the pressure of dense mud, guarantee pin-connected panel entrance to a cave sealing device 5's leakproofness and stagnant water nature, ensure the push pipe construction safety, it is informationalized to have, it is intelligent, characteristics such as integrate.
In the present embodiment, the control platform includes a data receiving module 41, a controller 42, a data display 43, a liquid level alarm 44, and a pressure alarm 45; the data receiving module 41 is electrically connected with the data transmitting module 33; the data receiving modules 41 are electrically connected to the controller 42 respectively; the controller 42 is electrically connected with the data display 43, the liquid level early-warning device 44, the pressure early-warning device 45 and the grouting system 2 respectively. Specifically, the controller 42 is electrically connected to the grouting pump 22 and the electric valve 231, respectively; the controller 42 is a conventional, off-the-shelf controller 42. The data receiving module 41 receives the liquid level information and the pressure information of the thick slurry fed back by the data transmission module 33 and feeds back the liquid level information and the pressure information to the controller 42, and the controller 42 respectively transmits the fed back liquid level information and the fed back pressure information of the thick slurry to the data display 43 for display; when the minimum limit value of the thick slurry pressure in the gap among the monitoring assembly type hole door water stopping device 5, the hole door embedded steel ring 6 and the pipe joint 7 is 0.9-1.0 time of the maximum water pressure; when the pressure of the thick mud is lower than the minimum limit value, the pressure early warning device 45 gives an alarm, the controller 42 sends an opening control signal to the grouting pump 22 and the electric valve 231, and the grouting pump 22 and the electric valve 231 are opened; when the pressure of the thick mud is higher than the minimum limit value, the pressure early-warning device 45 stops giving an alarm, the controller 42 sends out a closing control signal, and the grouting pump 22 and the electric valve 231 are closed; the automation is high-efficient, convenient and practical. The maximum limit value of the storage capacity of the thick mud in the mud storage tank 12 is preferably 0.9 times of the capacity of the mud storage tank 12, the minimum limit value is preferably 0.3 times of the capacity of the mud storage tank 12, when the storage capacity of the thick mud exceeds the specified limit value, the liquid level early-warning device 44 gives an alarm and informs constructors to regulate and control the mud mixing process; the automation is high-efficient, convenient and practical.
The pulp accompanying process of one embodiment of the utility model is as follows:
(1) when the storage volume of the thick slurry is lower than the minimum limit value, the liquid level early-warning device 44 sends out a warning signal,
(2) the operator informs the constructor to start mixing the slurry;
(3) starting the slurry mixer 11, and adding materials such as bentonite, clear water, CMC, soda, macromolecular compounds, additives and the like into the slurry mixer 11; wherein cmc is carboxymethyl cellulose;
(4) fully stirring the materials to form thick slurry with plastic fluidity and water stopping property;
(5) the mixed thick slurry is conveyed to a slurry storage tank 12 for temporary storage;
(6) when the storage capacity of the thick slurry in the slurry storage tank 12 exceeds the minimum limit value, the liquid level sensor 32 stops alarming, and the slurry mixing can be continued or stopped;
(7) if the slurry mixing is selected to be continued, when the storage capacity of the thick slurry exceeds the maximum limit value, the liquid level sensor 32 sends out an alarm signal, and the slurry mixing is stopped at the moment.
The construction process of one embodiment of the utility model is as follows:
(1) constructing a portal pre-buried steel ring 6 in the pipe-jacking working well 8 according to requirements, and correctly installing the assembled portal water stopping device 5 to inflate the inflatable water stopping rubber ring 52;
(2) a first grouting branch pipe 212 and a second grouting branch pipe 213 are arranged on the combined steel ring 51 and connected with a grouting main pipe, and an electric valve 231 and a manual valve 232 are arranged;
(3) arranging the slurry mixing machine 11, the slurry storage tank 12 and the grouting pump 22 on the ground and near the pipe-jacking working well 8, sequentially communicating the slurry mixing machine, the slurry storage tank 12 and the grouting pump 22, and connecting the main grouting pipe 211 to the grouting pump 22;
(4) the pressure sensor 31 is arranged on the combined steel ring 51 and is connected to the data receiving module 41 of the control platform 4 through the data transmission module 33;
(5) a hydraulic sensor is arranged in the slurry storage tank 12 and is connected to a data receiving module 41 of the control platform 4 through a data transmission module 33;
(6) the integrity of the tunnel portal automatic pressure measuring and grouting system suitable for high-water-pressure condition pipe jacking construction is checked, and test grouting is carried out before pipe jacking tunneling.
The pressure measuring and grouting process of one embodiment of the utility model comprises the following steps:
(1) when the pipe jacking machine starts to drive, injecting thick slurry into a gap formed by the assembled tunnel portal water stop device 5, the tunnel portal embedded steel ring 6 and the pipe joint 7 (or the pipe jacking machine);
(2) the pressure of the thick mud is monitored in real time through the pressure sensor 31, and pressure data are transmitted to the data receiving module 41 through the data transmission module 33 and displayed on the pressure early-warning device 45;
(3) when the pressure of the thick mud is less than the minimum limit value, the pressure early warning device 45 sends out a warning signal;
(4) the controller 42 sends an "on" control signal, the grouting pump 22 and the electrically operated valve 231 are opened;
(5) the thick slurry is continuously injected into a gap formed by the assembled tunnel portal water stop device 5, the tunnel portal embedded steel ring 6 and the pipe joint 7 (or a pipe jacking machine) through the main grouting pipe 211, the first grouting branch pipe 212 and the second grouting branch pipe 213;
(6) when the pressure of the thick mud exceeds the minimum limit value, the pressure early warning device 45 stops giving an alarm;
(7) the controller 42 issues a "close" control signal, the grouting pump 22 and the electrically operated valve 231 are closed;
(8) the push bench and the pipe joint 7 are continuously and stably pushed forward.
To sum up, the embodiment of the utility model provides an automatic pressure-measuring grouting system for a tunnel portal suitable for pipe-jacking construction under high water pressure conditions, wherein the automatic pressure-measuring grouting system for a tunnel portal suitable for pipe-jacking construction under high water pressure conditions utilizes a slurry mixing system 1 to provide thick slurry for pipe-jacking construction mixing, a grouting system 2 injects the thick slurry into a gap formed by an assembled tunnel portal water-stop device 5, a tunnel portal embedded steel ring 6 and a pipe joint 7, then a measurement and control system 3 monitors liquid level (storage amount) and pressure in real time, a liquid level sensor 32 is utilized to monitor the storage amount of the thick slurry in the slurry mixing system 1 in real time, the monitored liquid level information is fed back to a control platform 4 through a data transmission module 33, the control platform 4 controls the slurry mixing system 1 to work, so that the slurry mixing system 1 reasonably controls the storage amount of the mixed thick slurry, the storage amount of the thick slurry can be ensured practically, but also can avoid waste caused by excessive production; and utilize pressure sensor 31 real-time supervision pin-connected panel entrance to a cave sealing device 5, the pre-buried steel ring of entrance to a cave 6, the pressure of thick mud in the clearance of tube coupling 7 formation, pressure information feedback to control platform 4 through data transmission module will monitor, and through control platform 4 control slip casting system 2 work, slip casting system 2 control thick mud is carried, in time adjust the pressure of thick mud, guarantee pin-connected panel entrance to a cave sealing device 5's leakproofness and sealing performance, ensure push pipe construction safety, have characteristics such as informationization, intellectuality, integrate.
The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present application, and these modifications and substitutions should also be regarded as the protection scope of the present application.
Claims (8)
1. The utility model provides an automatic pressure measurement slip casting system in portal suitable for construction of high water pressure condition push pipe, is applied to on pin-connected panel portal stagnant water device and the pre-buried steel ring in portal, its characterized in that includes:
a slurry mixing system;
the grouting system is communicated with the slurry mixing system; the grouting system comprises grouting pipes extending to the assembled tunnel portal water stopping device and the tunnel portal embedded steel ring;
the measurement and control system comprises a pressure sensor arranged on the assembled tunnel portal water stopping device, a liquid level sensor arranged in the slurry mixing system and a data transmission module which is electrically connected with the pressure sensor and the liquid level sensor respectively;
and the control platform is electrically connected with the grouting system and the data transmission module respectively.
2. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition as claimed in claim 1, wherein the slurry mixing system comprises a slurry mixer and a slurry storage tank; the slurry mixing machine is communicated with the slurry storage box; the liquid level sensor is arranged in the slurry storage tank and used for monitoring the liquid level of the thick slurry in the slurry storage tank.
3. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition as claimed in claim 2, wherein the grouting system further comprises a grouting pump and a valve; the grouting pump is communicated between the grout storage box and the grouting pipe and is electrically connected with the control platform; the valve is arranged on the grouting pipe.
4. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition as claimed in claim 3, wherein the control platform comprises a data receiving module, a controller, a data display, a liquid level early-warning device and a pressure early-warning device; the data receiving module is electrically connected with the data transmission module; the data receiving module is electrically connected with the controller respectively; the controller is respectively electrically connected with the data display, the liquid level early warning device, the pressure early warning device and the grouting system.
5. The automatic pressure-measuring grouting system for the portal suitable for pipe-jacking construction under the high water pressure condition of claim 4, wherein the assembled portal water-stopping device comprises a combined steel ring, an inflatable water-stopping rubber ring and a water-stopping rubber pad, the combined steel ring is installed on the portal pre-embedded steel ring, and the water-stopping rubber pad is arranged between the combined steel ring and the portal pre-embedded steel ring; an inflatable water-stopping rubber ring is arranged in the combined steel ring;
at least 4 pressure sensors are uniformly distributed around the combined steel ring.
6. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition of claim 5, wherein the grouting pipe comprises a main grouting pipe, a first grouting branch pipe and a second grouting branch pipe; one end of the grouting main pipe is communicated with the grouting pump; the other ends of the first grouting branch pipes are respectively communicated with the first grouting branch pipes; the first grouting branch pipe is arranged along the outer ring of the combined steel ring; one end of the second grouting branch pipe is perpendicular to the first grouting branch pipe and communicated with the first grouting branch pipe, and the other end of the second grouting branch pipe penetrates through the outer ring of the combined steel ring to reach the inner ring of the combined steel ring.
7. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high-water-pressure condition as claimed in claim 6, wherein the valves comprise electric valves and manual valves; the electric valve and the manual valve are both arranged on the main grouting pipe; the electric valve is electrically connected with the control platform.
8. The automatic pressure-measuring grouting system for the tunnel portal suitable for pipe-jacking construction under the high water pressure condition of claim 2, wherein at least two liquid level sensors are distributed in the grout storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121934906.2U CN215672212U (en) | 2021-08-17 | 2021-08-17 | Automatic pressure-measuring grouting system for tunnel portal suitable for high-water pressure condition pipe-jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121934906.2U CN215672212U (en) | 2021-08-17 | 2021-08-17 | Automatic pressure-measuring grouting system for tunnel portal suitable for high-water pressure condition pipe-jacking construction |
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| Publication Number | Publication Date |
|---|---|
| CN215672212U true CN215672212U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121934906.2U Active CN215672212U (en) | 2021-08-17 | 2021-08-17 | Automatic pressure-measuring grouting system for tunnel portal suitable for high-water pressure condition pipe-jacking construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN215672212U (en) |
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2021
- 2021-08-17 CN CN202121934906.2U patent/CN215672212U/en active Active
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