CN113431602A - Secondary grouting operation system of shield tunneling machine - Google Patents
Secondary grouting operation system of shield tunneling machine Download PDFInfo
- Publication number
- CN113431602A CN113431602A CN202110830964.9A CN202110830964A CN113431602A CN 113431602 A CN113431602 A CN 113431602A CN 202110830964 A CN202110830964 A CN 202110830964A CN 113431602 A CN113431602 A CN 113431602A
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- Prior art keywords
- liquid
- grouting
- pump
- pipeline
- slurry
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- 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.)
- Pending
Links
- 230000005641 tunneling Effects 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 134
- 239000002002 slurry Substances 0.000 claims abstract description 43
- 238000007569 slipcasting Methods 0.000 claims abstract description 12
- 230000032258 transport Effects 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 239000004568 cement Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/163—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure using a pump
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a secondary grouting operation system of a shield tunneling machine, which comprises a liquid A tank, a liquid B tank, a liquid A grouting pump, a liquid B grouting pump, an electronic flowmeter A and an electronic flowmeter B, wherein the liquid A tank is used for storing the liquid A, the liquid A grouting pump pumps the liquid A in the liquid A tank and transports the liquid A to a grouting gun, and the electronic flowmeter A is arranged at the outlet of the liquid A grouting pump and monitors the flow rate of the liquid A; the B liquid case is used for storing the B thick liquid, B liquid slip casting pump draws the B thick liquid in the B liquid case, transports to the slip casting rifle, B liquid slip casting pump export department installation B electron flowmeter, the velocity of flow of monitoring B thick liquid. The secondary grouting operation system of the shield machine can accurately control the injection proportion of the secondary grouting slurry A and the secondary grouting slurry B, and the grouting pressure can be effectively controlled, so that the grouting quality problem and the safety risk are avoided.
Description
Technical Field
The invention relates to the field of secondary grouting operation systems of shield tunneling machines. More specifically, the invention relates to a secondary grouting operation system of a shield tunneling machine with high precision.
Background
In recent years, shield machines are widely applied to construction of highways, subways and water and power transmission tunnels, and the shield machines of the engineering are large in diameter and large in segment size and weight. The shield segment is a permanent lining structure of the tunnel by a shield method, the quality of the shield segment is directly related to the overall quality and safety of the tunnel, and the waterproof performance and the durability of the tunnel are directly influenced.
At present, a secondary grouting system adopts manual local manual operation, the injection ratio of cement paste and water glass cannot be effectively controlled, the conditions of injection in different proportions under different requirements cannot be met, and a great amount of time and energy are consumed when the injection ratio is adjusted manually.
The traditional secondary grouting process changes the grouting rate by adjusting the oil pressure of a grouting pump, and judges the flow size through the movement frequency of a plunger pump, so that the proportional injection of double-liquid slurry is completed, a large amount of labor and time are consumed, and the slurry proportioning accuracy is poor. Therefore, a novel secondary grouting operation construction method with low labor consumption and high slurry proportioning accuracy needs to be found.
Disclosure of Invention
To achieve these objects and other advantages in accordance with the purpose of the invention, a preferred embodiment of the present invention provides a secondary grouting operation system of a shield tunneling machine, which is characterized by comprising a liquid A tank, a liquid B tank, a liquid A grouting pump, a liquid B grouting pump, an electronic flowmeter A and an electronic flowmeter B, wherein
The liquid A box is used for storing the liquid A, the liquid A in the liquid A box is pumped by the liquid A grouting pump and conveyed to a grouting gun, an electronic flowmeter A is installed at the outlet of the liquid A grouting pump, and the flow rate of the liquid A is monitored;
the B liquid case is used for storing the B thick liquid, B liquid slip casting pump draws the B thick liquid in the B liquid case, transports to the slip casting rifle, B liquid slip casting pump export department installation B electron flowmeter, the velocity of flow of monitoring B thick liquid.
According to a preferred embodiment of the present invention, the secondary grouting operation system of the shield machine further includes a control unit, the control unit is connected to the electronic flowmeter a and the electronic flowmeter B, the liquid grouting pump a and the liquid grouting pump B, and the control unit receives flow data of the electronic flowmeter a and the electronic flowmeter B and controls the rotation speeds of the liquid grouting pump a and the liquid grouting pump B.
According to a preferred embodiment of the invention, in the secondary grouting operation system of the shield tunneling machine, the slurry A in the slurry A tank is pumped by the slurry A pump and is transported to a grouting gun through a pipeline A, an electronic pressure gauge A is arranged on the pipeline A,
and the B liquid grouting pump extracts the B slurry in the B liquid box and transports the B slurry to a grouting gun through a B pipeline, a B electronic pressure gauge is installed on the B pipeline, and a B electronic pressure gauge is installed on the B pipeline.
According to a preferred embodiment of the invention, the shield machine secondary grouting operation system is characterized in that an A stirrer is further arranged in/outside the liquid A tank.
According to a preferred embodiment of the invention, the secondary grouting operation system of the shield machine is characterized in that an A pressure sensor is arranged on the pipeline A and used for monitoring the liquid level in the pipeline A;
and a B pressure sensor is arranged on the B pipeline to monitor the pressure of the grouting pipeline.
According to a preferred embodiment of the invention, the pump speeds of the liquid A grouting pump and the liquid B grouting pump of the secondary grouting operation system of the shield tunneling machine can be manually adjusted.
According to a preferred embodiment of the invention, the secondary grouting operation system of the shield tunneling machine is characterized in that an A liquid air valve is arranged on the A pipeline, and a B liquid air valve is arranged on the B pipeline.
The invention at least comprises the following beneficial effects: the secondary grouting operation system of the shield machine can accurately control the injection proportion of the secondary grouting slurry A and the secondary grouting slurry B, and the grouting pressure can be effectively controlled, so that the grouting quality problem and the safety risk are avoided. Meanwhile, the injection proportion of the slurry A and the slurry B is regulated and controlled by the control unit, so that the grouting process is simple and easy, and intelligent and people-saving effects can be realized.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a secondary grouting operation system of a shield tunneling machine in the invention.
FIG. 2 is a front view of a tank A according to the present invention.
FIG. 3 is a top view of the tank A of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1 to 3, a preferred embodiment of the present invention provides a secondary grouting operation system of a shield tunneling machine, comprising a liquid tank a 1, a liquid tank B2, a liquid grouting pump a 3, a liquid grouting pump B4, an electronic flowmeter a 5 and an electronic flowmeter B6, wherein
The liquid A box 1 is used for storing the liquid A, the liquid A grouting pump 3 is used for pumping the liquid A in the liquid A box 1 and transporting the liquid A to a grouting gun 7, an electronic flowmeter A5 is installed at the outlet of the liquid A grouting pump and used for monitoring the flow rate of the liquid A;
b liquid case 2 is used for storing the B thick liquid, B liquid slip casting pump 4 extracts the B thick liquid in the B liquid case 2 transports to slip casting rifle 7, B liquid slip casting pump export department installation B electron flowmeter 6 monitors the velocity of flow of B thick liquid.
In the above embodiment, the slurry a in the slurry tank 1 is extracted by the slurry a pump 3, and at the same time, the slurry B in the slurry tank 2 is extracted by the slurry B pump 4, and the slurry a and the slurry B are simultaneously transported to the grouting gun and mixed before the grouting gun 7.
It should be noted that the above grouting operation system has a further purpose, and if it is not necessary to mix two kinds of grout, only one kind of grout needs to be used, only the liquid a grouting pump 3 or the liquid B grouting pump 4 may be started, and only one kind of grout is pumped.
In another embodiment, the secondary grouting operation system of the shield machine further includes a control unit, the control unit is connected to the receiving unit and receives the flow data of the a electronic flowmeter 5 and the B electronic flowmeter 6, the a liquid grouting pump 3 and the B liquid grouting pump 4, the control unit receives the flow data of the a electronic flowmeter 5 and the B electronic flowmeter 6 and controls the rotation speeds of the a liquid grouting pump 3 and the B liquid grouting pump 4, the a electronic flowmeter 5 displays the flow speed of the a slurry, the B electronic flowmeter 6 displays the flow speed of the B slurry, and if the flow speeds do not reach the standard, the control unit respectively controls the rotation speeds of the a liquid grouting pump 3 and the B liquid grouting pump 3, so as to adjust the flow speed of the a slurry and the flow speed of the B slurry to make the flow speeds reach the standard.
According to a preferred embodiment of the invention, the A liquid grouting pump 3 pumps the A liquid in the A liquid tank 1 and transports the A liquid to a grouting gun through an A pipeline, an A electronic pressure gauge 9 is arranged on the A pipeline,
the B liquid grouting pump 4 extracts the B slurry in the B liquid box 2 and transports the B slurry to the grouting gun 7 through a B pipeline, a B electronic pressure gauge 10 is installed on the B pipeline, and the B electronic pressure gauge 10 is installed on the B pipeline.
For example, sometimes the pipeline is blocked, and the pressure is overlarge. In case discover that A electron manometer, B electron manometer's pressure reaches the predetermined value, can artifically close A liquid grouting pump, B liquid grouting pump, still pump into thick liquid under the very big condition of pressure, cause the pipeline to scrap.
The system can realize automatic grouting and sequential operation of grouting processes: starting the liquid pump A, starting the liquid pump B after 10s, continuing grouting at a constant speed after the flow monitored by the electronic flowmeter A/B reaches a set value, stopping grouting after the electronic pressure gauge A/B displays that the grouting pressure is greater than a set termination pressure, and stopping grouting when any one of the two pipeline pressures reaches the set termination pressure, wherein grouting is finished at the moment.
In actual construction, the slurry A used by the shield tunneling machine is usually cement slurry and is formed by mixing water and cement, and in order to ensure the control of the cement slurry precision in the construction process, the cross section area of the slurry A tank is designed to be close to 1m2In order to facilitate observation of the liquid level condition of the liquid tank A1, a slurry suction pipe placing groove 13 is formed in the position, close to the outer wall, in the tank, the slurry suction pipe placing groove 13 is communicated with the inside of the liquid tank A, one end, close to the outer side, of the slurry suction pipe placing groove 13 is transparent, scale marks are arranged on the transparent end, and the liquid slurry A in the liquid tank A is pumped by the liquid slurry suction pipe.
One cement bag in the market is 50kg, the height of each scale mark is 0.1m, and one scale corresponds to two cement bags. The water quality is accurately known according to the scales, so that the added cement amount can be more accurately controlled, the water-cement ratio amount can be accurately controlled, and the method is simple and easy to operate.
In another embodiment, a stirrer A is further installed in/outside the liquid A tank 1 to stir the slurry A.
In another embodiment, the pipeline A is provided with a pressure sensor A, and the pressure on the pipeline A is monitored in real time; and a B pressure sensor is arranged on the B pipeline to monitor the pressure of the grouting pipeline on the B pipeline in real time.
The control unit is connected with the receiving pressure sensor 11 and the B pressure sensor 12, and controls to close the liquid A grouting pump or the liquid B grouting pump once the pressure of the pipeline A or the pipeline B is monitored to be overlarge.
According to a preferred embodiment of the invention, the pump speeds of the liquid A grouting pump and the liquid B grouting pump of the secondary grouting operation system of the shield tunneling machine can be manually adjusted.
According to a preferred embodiment of the invention, the secondary grouting operation system of the shield tunneling machine is characterized in that an A liquid air valve is arranged on the A pipeline, and a B liquid air valve is arranged on the B pipeline.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (7)
1. A secondary grouting operation system of a shield tunneling machine is characterized by comprising an A liquid tank, a B liquid tank, an A liquid grouting pump, a B liquid grouting pump, an A electronic flowmeter and a B electronic flowmeter, wherein the A liquid tank, the B liquid grouting pump, the A electronic flowmeter and the B electronic flowmeter are arranged in sequence, and the A liquid tank, the B liquid tank, the A liquid grouting pump, the B liquid grouting pump, the A electronic flowmeter and the B electronic flowmeter are arranged in sequence in
The liquid A box is used for storing the liquid A, the liquid A in the liquid A box is pumped by the liquid A grouting pump and conveyed to a grouting gun, an electronic flowmeter A is installed at the outlet of the liquid A grouting pump, and the flow rate of the liquid A is monitored;
the B liquid case is used for storing the B thick liquid, B liquid slip casting pump draws the B thick liquid in the B liquid case, transports to the slip casting rifle, B liquid slip casting pump export department installation B electron flowmeter, the velocity of flow of monitoring B thick liquid.
2. The secondary grouting operation system of the shield tunneling machine of claim 1, further comprising a control unit,
the control unit is connected with the receiving electronic flowmeter A, the electronic flowmeter B, the liquid grouting pump A and the liquid grouting pump B.
3. The secondary grouting operation system of the shield tunneling machine according to claim 1, wherein the slurry A in the slurry A tank is pumped by the slurry A pump and transported to a grouting gun through a pipeline A, an electronic pressure gauge A is installed on the pipeline A,
and the B liquid grouting pump extracts the B slurry in the B liquid box and transports the B slurry to a grouting gun through a B pipeline, a B electronic pressure gauge is installed on the B pipeline, and a B electronic pressure gauge is installed on the B pipeline.
4. The secondary grouting operation system of the shield tunneling machine according to claim 1, wherein an A stirrer is further installed inside/outside the A liquid tank.
5. The secondary grouting operation system of the shield tunneling machine according to claim 1, wherein an A pressure sensor is mounted on the A pipeline; and a B pressure sensor is arranged on the B pipeline.
6. The secondary grouting operation system of the shield tunneling machine according to claim 1, wherein the pump speeds of the liquid A grouting pump and the liquid B grouting pump are manually adjustable.
7. The secondary grouting operation system of the shield tunneling machine according to claim 2, wherein a liquid A gas valve is installed on the pipeline A, and a liquid B gas valve is installed on the pipeline B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830964.9A CN113431602A (en) | 2021-07-22 | 2021-07-22 | Secondary grouting operation system of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830964.9A CN113431602A (en) | 2021-07-22 | 2021-07-22 | Secondary grouting operation system of shield tunneling machine |
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| Publication Number | Publication Date |
|---|---|
| CN113431602A true CN113431602A (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110830964.9A Pending CN113431602A (en) | 2021-07-22 | 2021-07-22 | Secondary grouting operation system of shield tunneling machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202001023U (en) * | 2011-04-07 | 2011-10-05 | 中铁十一局集团城市轨道工程有限公司 | Improved shield machine grouting pipeline system |
| KR101927909B1 (en) * | 2017-12-26 | 2018-12-12 | 씨에스지오텍 주식회사 | An automatic control method a grout liquid chemical injection using plural pipe |
| CN209908518U (en) * | 2019-03-31 | 2020-01-07 | 北京市政建设集团有限责任公司 | Double-fluid synchronous grouting system for shield engineering |
| CN111571815A (en) * | 2020-05-22 | 2020-08-25 | 王志杰 | Mixed grouting preparation system |
| CN111720128A (en) * | 2020-05-25 | 2020-09-29 | 中交天和机械设备制造有限公司 | Double-liquid synchronous grouting system of shield machine |
| CN111828029A (en) * | 2020-07-09 | 2020-10-27 | 中铁隧道集团二处有限公司 | Slurry shield circulation system |
| CN215292522U (en) * | 2021-07-22 | 2021-12-24 | 中交第二航务工程局有限公司 | Secondary grouting operation system of shield tunneling machine |
-
2021
- 2021-07-22 CN CN202110830964.9A patent/CN113431602A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202001023U (en) * | 2011-04-07 | 2011-10-05 | 中铁十一局集团城市轨道工程有限公司 | Improved shield machine grouting pipeline system |
| KR101927909B1 (en) * | 2017-12-26 | 2018-12-12 | 씨에스지오텍 주식회사 | An automatic control method a grout liquid chemical injection using plural pipe |
| CN209908518U (en) * | 2019-03-31 | 2020-01-07 | 北京市政建设集团有限责任公司 | Double-fluid synchronous grouting system for shield engineering |
| CN111571815A (en) * | 2020-05-22 | 2020-08-25 | 王志杰 | Mixed grouting preparation system |
| CN111720128A (en) * | 2020-05-25 | 2020-09-29 | 中交天和机械设备制造有限公司 | Double-liquid synchronous grouting system of shield machine |
| CN111828029A (en) * | 2020-07-09 | 2020-10-27 | 中铁隧道集团二处有限公司 | Slurry shield circulation system |
| CN215292522U (en) * | 2021-07-22 | 2021-12-24 | 中交第二航务工程局有限公司 | Secondary grouting operation system of shield tunneling machine |
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