CN113027470A - Shield tunneling machine grouting system and shield tunneling machine grouting control method - Google Patents
Shield tunneling machine grouting system and shield tunneling machine grouting control method Download PDFInfo
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- CN113027470A CN113027470A CN201911355407.5A CN201911355407A CN113027470A CN 113027470 A CN113027470 A CN 113027470A CN 201911355407 A CN201911355407 A CN 201911355407A CN 113027470 A CN113027470 A CN 113027470A
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- grouting
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- pressure sensor
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005641 tunneling Effects 0.000 title claims description 29
- 239000004519 grease Substances 0.000 claims abstract description 152
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 239000002689 soil Substances 0.000 claims description 11
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000007569 slipcasting Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
-
- 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
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A shield machine grouting system and a shield machine grouting control method comprise a shield tail, a grease injection unit, a grouting unit and a controller, wherein a front cavity and a rear cavity are arranged in the shield tail; a plurality of first grease pressure sensors are arranged in the front cavity and the rear cavity; the grease injection unit comprises a grease pump assembly and at least one grease pipeline; the grease pump assembly is provided with an electromagnetic flow valve and a grease pump, and the grease pipeline comprises a pneumatic ball valve and a grease injection point; the grease injection point, the pneumatic ball valve, the grease pump and the electromagnetic flow valve are sequentially connected, and the grease injection point is respectively communicated with the front cavity and the rear cavity; the grouting unit comprises at least one grouting pipeline, and the grouting pipeline comprises a grouting pump, a grouting pressure sensor and a grouting point which are sequentially connected; the controller is connected with first grease pressure sensor, electromagnetic flow valve, pneumatic ball valve, slip casting pressure sensor, grouting pump and grease pump respectively. The invention can monitor the conditions of grease pressure and grouting pressure in real time, thereby automatically adjusting the injection amount of grease and slurry at the shield tail.
Description
Technical Field
The invention relates to the technical field of shield tunneling machines, in particular to a shield tunneling machine grouting system and a shield tunneling machine grouting control method.
Background
The shield machine is used for urban subway construction, not only needs to penetrate a river channel, but also needs to penetrate a dense building house, and the working reliability of the shield machine is related to the construction safety of the subway and the safety of ground buildings. In the past, road surface collapse and house cracking and even collapse accidents caused by improper design or operation of the shield tunneling machine often occur because the seal of the shield tail brush fails or the grouting amount is insufficient, so that the grouting amount and the grouting pressure of the shield tunneling machine play a crucial role in preventing ground settlement in the tunneling process. The control mode of the grouting system of the existing shield machine is pressure control, the grease consumption of the tail of the shield is large, namely grouting is stopped when the grouting pressure reaches a maximum set value, and due to the fact that the grouting pressure fluctuates greatly, the instantaneous pressure reaches the set value, the grouting pump is frequently jumped and stopped, the grouting pump needs to be frequently started, and great inconvenience is brought to construction.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. To this end, an object of the present invention is to provide a grouting system of a shield tunneling machine.
The second purpose of the invention is to provide a grouting control method of the shield tunneling machine.
In order to achieve the above object, a first embodiment of the present invention provides a grouting system for a shield machine, including a shield tail and a segment, where the shield tail is located in a soil body, the segment is located in the shield tail, a front cavity and a rear cavity are arranged in the shield tail, and an area a is arranged between the soil body and the segment; a plurality of first grease pressure sensors are arranged in the front cavity and the rear cavity; the grease injection unit comprises a grease pump assembly and at least one grease pipeline; the grease pump assembly is provided with an electromagnetic flow valve and a grease pump, and the grease pipeline comprises a pneumatic ball valve and a grease injection point; the grease injection point, the pneumatic ball valve, the grease pump and the electromagnetic flow valve are sequentially connected, and the grease injection point is respectively communicated with the front cavity and the rear cavity;
the grouting unit comprises at least one grouting pipeline, the grouting pipeline comprises a grouting pump, a grouting pressure sensor and a grouting point which are sequentially connected, and the grouting point is communicated with the area A;
the controller comprises a lower computer and an upper computer, wherein the lower computer is respectively connected with the first grease pressure sensor, the electromagnetic flow valve, the pneumatic ball valve, the grouting pressure sensor, the grouting pump and the grease pump and is used for receiving pressure signals of the first grease pressure sensor and the grouting pressure sensor and controlling the electromagnetic flow valve, the pneumatic ball valve, the grouting pump and the grease pump to be opened or closed; the upper computer is connected with the lower computer, receives the signal fed back by the lower computer, and sends out an alarm or/and sends out a control instruction to the lower computer.
Based on the design, the conditions of the grease pressure and the grouting pressure can be monitored in real time by 4 detection points of the front cavity and the rear cavity, so that the injection amount of the shield tail grease and the slurry can be automatically adjusted.
In addition, the grouting system of the shield machine provided by the above embodiment of the present invention may further have the following additional technical features:
the grease pipeline still includes second grease pressure sensor, second grease pressure sensor locates and annotates between fat point and the pneumatic ball valve, and second grease pressure sensor is arranged in detecting the grease pressure in the grease pipeline.
The quantity of the first grease pressure sensors in the front cavity and the rear cavity is 4, the first grease pressure sensors are evenly distributed at four corners of the front cavity and the rear cavity respectively, and the grease pressure at each position in the front cavity and the rear cavity can be monitored in real time.
The grease pipeline further comprises a first manual ball valve for manually controlling the on-off of the grease pipeline.
The number of grease pipelines is 4, and grease injection is more uniform.
The grouting pipeline further comprises a second manual ball valve for manually controlling the on-off of the grouting pipeline.
The number of grouting pipelines is 4, and grouting is more uniform.
In order to achieve the above object, a second aspect of the present invention provides a method for controlling grouting of a shield machine, which uses a grouting system of the shield machine to perform operations, and during a tunneling process of the shield machine, a lower computer receives pressure signals fed back by a first grease pressure sensor, a second grease pressure sensor and a grouting pressure sensor in real time and reports the pressure signals to an upper computer, and the method includes the following specific steps:
(1) starting a grease pump, establishing pressure in a front cavity and a rear cavity of a shield tail, starting a grouting pump, detecting the grease pressure of the front cavity and the rear cavity in real time by first grease pressure sensors of the front cavity and the rear cavity, detecting the grouting pressure in real time by grouting pressure sensors, and simultaneously comparing the grease pressure with the grouting pressure by an upper computer;
(2) when the grease pressure is higher than the grouting pressure, the lower computer controls the minimum opening degree of a valve port of the electromagnetic flow valve, the air supply pressure is a preset minimum value, and the grease injection amount is injected at the minimum value;
(3) when the grease pressure is lower than the grouting pressure, the lower computer controls the opening degree of a valve port of the electromagnetic flow valve to be maximum, the air supply pressure is a preset maximum value, and the grease injection amount is injected at the maximum value;
the grease consumption of the shield tail is reduced to the minimum on the premise of ensuring that the grease pressure of 4 detection points of the front cavity and the rear cavity is higher than the grouting pressure at any moment by dynamically adjusting the grease injection amount of the shield tail;
(4) when the grease pressure detected by any grease pressure sensor is suddenly reduced to 0, the grease sealing of the front cavity and the back cavity of the shield tail is possibly failed, grouting leakage occurs, an upper computer alarms, a lower computer controls a grouting pump to be closed, the shield machine stops propelling, the opening degree of a valve port of an electromagnetic flow valve is controlled to be maximum, and the grease injection amount is injected into the front cavity and the back cavity at the maximum until the grouting leakage stops.
Based on the design, the grease pressure at the 4 detection points of the front cavity and the rear cavity is monitored in real time and is higher than the grouting pressure, so that the injection amount of the shield tail grease and the slurry can be automatically and dynamically adjusted, and the consumption of the shield tail grease is reduced to the minimum.
In addition, the grouting control method for the shield tunneling machine according to the embodiment of the present invention may further have the following additional technical features:
further comprising the step (5):
and a jump stop time delay is preset on the upper computer, when the grouting pressure detected by the grouting pressure sensor exceeds the preset maximum grouting pressure value and lasts for more than two seconds, the upper computer gives an alarm, and meanwhile, the lower computer controls the grouting pump to be closed. By the arrangement, the leakage caused by the influence of the grouting pressure exceeding the maximum set value on the shield tail sealing effect for a long time can be prevented, and the frequent jumping and stopping of the grouting pump can be prevented.
Drawings
Fig. 1 is a cross-sectional view of a shield tail according to the present invention.
FIG. 2 is a distribution diagram of a first grease pressure sensor in either the front or rear cavity in accordance with the present invention.
Fig. 3 is a schematic structural diagram of a grouting unit in the invention.
FIG. 4 is a schematic structural diagram of a grease injection unit according to the present invention.
FIG. 5 is a schematic block diagram of the grouting and greasing of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the tunneling process of the shield tunneling machine in the soil body 3, a cavity is formed between the soil body 3 and the duct piece 2, and in order to prevent the soil body 3 from collapsing to cause ground settlement, continuous grouting needs to be performed in the cavity to fill the cavity.
Referring to fig. 1-2, a grouting system of a shield machine comprises a shield tail 1, a pipe piece 2, a grease injection unit 5, a grouting unit 6 and a controller 7, wherein the shield tail 1 is positioned in a soil body 3, the pipe piece 2 is positioned in the shield tail 1, a grouting channel 8 and a grout stopping plate 9 are arranged between the shield tail 1 and the soil body 3, a front cavity 11 and a rear cavity 12 are arranged in the shield tail 1, a shield tail brush 10 is arranged between the front cavity 11 and the rear cavity 12, an area a is arranged between the soil body 3 and the pipe piece 2, and grout flows into the area a from the grouting channel 8; a plurality of first grease pressure sensors 4 are arranged in the front cavity 11 and the rear cavity 12, the number of the first grease pressure sensors 4 in the front cavity 11 and the rear cavity 12 is preferably 4, the first grease pressure sensors are uniformly distributed at four corners of the front cavity 11 and the rear cavity 12 respectively, namely 4 first grease pressure sensors 4 are arranged at the upper left, upper right, lower left and lower right of the front cavity 11 and the rear cavity 12 respectively; when in operation, grease is injected into the interior of the front and rear cavities 11, 12.
Referring to fig. 3-5, the grease filling unit 5 includes a grease pump assembly 51 and at least one grease line 52, and the number of the grease lines 52 is preferably 4; the grease pump assembly 51 is provided with an electromagnetic flow valve 511 and a grease pump 512, and the grease pipeline 52 comprises a pneumatic ball valve 521, a grease injection point 522, a second grease pressure sensor 523 and a first manual ball valve 524 for manually controlling the on-off of the grease pipeline 52; the grease injection point 522 is communicated with the front cavity 11 and the rear cavity 12 respectively, and the second grease pressure sensor 523 is arranged between the grease injection point 522 and the pneumatic ball valve 521. The grease injection point 522, the pneumatic ball valve 521, the grease pump 512 and the electromagnetic flow valve 511 are connected in sequence; the grouting unit 6 comprises at least one grouting pipeline 61, and the number of the grouting pipelines 61 is preferably 4; the grouting pipeline 61 comprises a grouting pump 611, a grouting pressure sensor 612, a grouting point 613 and a second manual ball valve 614 for manually controlling the on-off of the grouting pipeline 61, which are connected in sequence, and the grouting point 613 is communicated with the area A; the controller 7 comprises a lower computer 71 and an upper computer 72, wherein the lower computer 71 is respectively connected with the first grease pressure sensor 4, the electromagnetic flow valve 511, the pneumatic ball valve 521, the grouting pressure sensor 612, the grouting pump 611 and the grease pump 512, and is used for receiving pressure signals of the first grease pressure sensor 4 and the grouting pressure sensor 612 and controlling the opening/closing of the electromagnetic flow valve 511, the pneumatic ball valve 521, the grouting pump 611 and the grease pump 512; the upper computer 72 is connected with the lower computer 71, and the upper computer 72 receives the signal fed back by the lower computer 71 and sends out an alarm or/and sends out a control instruction to the lower computer 71.
Referring to fig. 1 and fig. 3-5, a method for controlling grouting of a shield machine, which utilizes a grouting system of the shield machine to perform operations, and sets three grouting modes for soft soil, hard rock and a composite stratum, wherein the grouting parameters of the three modes are different, i.e., the maximum set value and the minimum set value of grouting pressure are different, and the grouting speed is different, so as to solve the phenomena of grouting difficulty and insufficient grouting.
In the tunneling process of the shield tunneling machine, the lower computer 71 receives pressure signals fed back by the first grease pressure sensor 4, the second grease pressure sensor 523 and the grouting pressure sensor 612 in real time and reports the pressure signals to the upper computer 72, and the specific steps are as follows:
(1) the grease pump 512 is started, pressure is firstly built in the front cavity 11 and the rear cavity 12 of the shield tail 1, the grouting pump 611 is started, the first grease pressure sensors 4 of the front cavity 11 and the rear cavity 12 start to detect grease pressure of the front cavity 11 and the rear cavity 12 in real time, the grouting pressure sensor 612 detects grouting pressure in real time, and meanwhile the upper computer 72 compares the grease pressure with the grouting pressure;
(2) when the grease pressure is higher than the grouting pressure, the lower computer 71 controls the opening degree of a valve port of the electromagnetic flow valve 511 to be minimum, the air supply pressure is a preset minimum value, and the grease injection amount is injected at the minimum value;
(3) when the grease pressure is lower than the grouting pressure, the lower computer 71 controls the opening degree of a valve port of the electromagnetic flow valve 511 to be maximum, the air supply pressure is a preset maximum value, and the grease injection amount is injected at the maximum value; by dynamically adjusting the grease injection amount of the shield tail 1, the grease consumption of the shield tail 1 is reduced to the minimum on the premise that the grease pressure of 4 detection points of the front cavity 11 and the rear cavity 12 is higher than the grouting pressure at any moment.
(4) When the grease pressure detected by any grease pressure sensor is suddenly reduced to 0, at this time, the grease sealing of the front cavity 11 and the rear cavity 12 of the shield tail 1 may be failed, grouting leakage occurs, the upper computer 72 gives an alarm, the lower computer 71 controls the grouting pump 611 to be closed, the shield machine is pushed to stop, the opening degree of the valve port of the electromagnetic flow valve 511 is controlled to be maximum, and the grease injection amount is injected into the front cavity 11 and the rear cavity 12 at the maximum value until the grouting leakage stops.
(5) The upper computer 72 presets a jump-stop time delay, when the grouting pressure detected by the grouting pressure sensor 612 exceeds a preset maximum grouting pressure value and lasts for more than two seconds, the upper computer 72 gives an alarm, and meanwhile the lower computer 71 controls the grouting pump 611 to be closed; therefore, the leakage caused by the influence of the grouting pressure exceeding the maximum set value on the sealing effect of the shield tail 1 for a long time can be prevented, and the frequent jumping and stopping of the grouting pump 611 can be prevented.
According to the invention, the first grease pressure sensor 4 is arranged in the front cavity 11 and the rear cavity 12, namely the sealing cavity of the shield tail 1, so that the grease pressure value of the sealing cavity can be truly reflected, and the real-time control is matched with the grouting pressure, thereby preventing the leakage of grout due to the breakdown of the sealing cavity and causing construction risks; the grouting system of the shield machine can automatically control the grouting amount, reduce the grease consumption, control the grouting pressure to be stable, and prevent the grouting pump 611 from frequently jumping and stopping due to the fact that the grouting instantaneous pressure is higher.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A grouting system of a shield tunneling machine comprises a shield tail (1) and pipe pieces (2), wherein the shield tail (1) is located in a soil body (3), the pipe pieces (2) are located in the shield tail (1), a front cavity (11) and a rear cavity (12) are arranged in the shield tail (1), and an area A is arranged between the soil body (3) and the pipe pieces (2); the method is characterized in that: a plurality of first grease pressure sensors (4) are arranged in the front cavity (11) and the rear cavity (12);
the device is characterized by also comprising a grease injection unit (5), a grouting unit (6) and a controller (7), wherein the grease injection unit (5) comprises a grease pump assembly (51) and at least one grease pipeline (52); the grease pump assembly (51) is provided with an electromagnetic flow valve (511) and a grease pump (512), and the grease pipeline (52) comprises a pneumatic ball valve (521) and a grease injection point (522); the grease injection point (522), the pneumatic ball valve (521), the grease pump (512) and the electromagnetic flow valve (511) are sequentially connected, and the grease injection point (522) is respectively communicated with the front cavity (11) and the rear cavity (12);
the grouting unit (6) comprises at least one grouting pipeline (61), the grouting pipeline (61) comprises a grouting pump (611), a grouting pressure sensor (612) and a grouting point (613) which are sequentially connected, and the grouting point (613) is communicated with the area A;
the controller (7) comprises a lower computer (71) and an upper computer (72), wherein the lower computer (71) is respectively connected with the first grease pressure sensor (4), the electromagnetic flow valve (511), the pneumatic ball valve (521), the grouting pressure sensor (612), the grouting pump (611) and the grease pump (512) and is used for receiving pressure signals of the first grease pressure sensor (4) and the grouting pressure sensor (612) and controlling the opening/closing of the electromagnetic flow valve (511), the pneumatic ball valve (521), the grouting pump (611) and the grease pump (512); the upper computer (72) is connected with the lower computer (71), and the upper computer (72) receives signals fed back by the lower computer (71) and sends out an alarm or/and sends out a control instruction to the lower computer (71).
2. The grouting system of a shield tunneling machine according to claim 1, wherein: the grease pipeline (52) further comprises a second grease pressure sensor (523), and the second grease pressure sensor (523) is arranged between the grease injection point (522) and the pneumatic ball valve (521).
3. The grouting system of a shield tunneling machine according to claim 1, wherein: the number of the first grease pressure sensors (4) in the front cavity (11) and the rear cavity (12) is 4, and the first grease pressure sensors are uniformly distributed at four corners in the front cavity (11) and the rear cavity (12) respectively.
4. The grouting system of a shield tunneling machine according to claim 1, wherein: the grease pipeline (52) further comprises a first manual ball valve (524) for manually controlling the on-off of the grease pipeline (52).
5. The grouting system of a shield tunneling machine according to claim 4, wherein: the number of the grease pipelines (52) is 4.
6. The grouting system of a shield tunneling machine according to claim 1, wherein: the grouting pipeline (61) further comprises a second manual ball valve (614) for manually controlling the on-off of the grouting pipeline (61).
7. The grouting system of a shield tunneling machine according to claim 6, wherein: the number of the grouting pipelines (61) is 4.
8. A grouting control method of a shield tunneling machine is characterized by comprising the following steps: the shield machine grouting system of claims 1-7 is used for operation, and during the tunneling process of the shield machine, the lower computer (71) receives pressure signals fed back by the first grease pressure sensor (4), the second grease pressure sensor (523) and the grouting pressure sensor (612) in real time and reports the pressure signals to the upper computer (72), and the specific steps are as follows:
(1) the method comprises the following steps that a grease pump (512) is started, pressure is built in a front cavity (11) and a rear cavity (12) of a shield tail (1), a grouting pump (611) is started, grease pressure of the front cavity (11) and the rear cavity (12) is detected by first grease pressure sensors (4) of the front cavity (11) and the rear cavity (12) in real time, grouting pressure is detected by a grouting pressure sensor (612) in real time, and meanwhile an upper computer (72) compares the grease pressure with the grouting pressure;
(2) when the grease pressure is higher than the grouting pressure, the lower computer (71) controls the opening degree of a valve port of the electromagnetic flow valve (511) to be minimum, the air supply pressure is a preset minimum value, and the grease injection amount is injected at the minimum value;
(3) when the grease pressure is lower than the grouting pressure, the lower computer (71) controls the opening degree of a valve port of the electromagnetic flow valve (511) to be maximum, the air supply pressure is a preset maximum value, and the grease injection amount is injected at the maximum value;
(4) when the grease pressure detected by any grease pressure sensor suddenly drops to 0, the upper computer (72) gives an alarm, the lower computer (71) controls the grouting pump (611) to be closed, the opening degree of a valve port of the electromagnetic flow valve (511) is controlled to be maximum, and the grease injection amount is injected into the front cavity (11) and the rear cavity (12) at the maximum until grouting leakage stops.
9. The grouting control method of the shield tunneling machine according to claim 8, characterized in that: further comprising the step (5):
a jump-stop time delay is preset on the upper computer (72), when the grouting pressure detected by the grouting pressure sensor (612) exceeds a preset maximum grouting pressure value and exceeds a preset time T, the upper computer (72) gives an alarm, and meanwhile the lower computer (71) controls the grouting pump (611) to be closed.
10. The grouting control method of the shield tunneling machine according to claim 9, characterized in that: the T is 2-3 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911355407.5A CN113027470A (en) | 2019-12-25 | 2019-12-25 | Shield tunneling machine grouting system and shield tunneling machine grouting control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911355407.5A CN113027470A (en) | 2019-12-25 | 2019-12-25 | Shield tunneling machine grouting system and shield tunneling machine grouting control method |
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| Publication Number | Publication Date |
|---|---|
| CN113027470A true CN113027470A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911355407.5A Pending CN113027470A (en) | 2019-12-25 | 2019-12-25 | Shield tunneling machine grouting system and shield tunneling machine grouting control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033399A (en) * | 2021-11-17 | 2022-02-11 | 上海地铁盾构设备工程有限公司 | Intelligent monitoring system for synchronous grouting of subway tunnel shield |
-
2019
- 2019-12-25 CN CN201911355407.5A patent/CN113027470A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033399A (en) * | 2021-11-17 | 2022-02-11 | 上海地铁盾构设备工程有限公司 | Intelligent monitoring system for synchronous grouting of subway tunnel shield |
| CN114033399B (en) * | 2021-11-17 | 2024-03-15 | 上海地铁盾构设备工程有限公司 | Intelligent monitoring system for synchronous grouting of subway tunnel shield |
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