CN110524674A - Shunt immersed tube pipeline section condenses pipe device and construction method - Google Patents
Shunt immersed tube pipeline section condenses pipe device and construction method Download PDFInfo
- Publication number
- CN110524674A CN110524674A CN201910737765.6A CN201910737765A CN110524674A CN 110524674 A CN110524674 A CN 110524674A CN 201910737765 A CN201910737765 A CN 201910737765A CN 110524674 A CN110524674 A CN 110524674A
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- Prior art keywords
- condenser pipe
- temperature
- pipeline section
- immersed tube
- tube pipeline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0081—Process control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/143—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations for measuring surface temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- General Engineering & Computer Science (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A kind of shunt immersed tube pipeline section condenses pipe device, including be embedded in immersed tube pipeline section condenser pipe, be arranged in for detecting the temperature sensor of concrete temperature by condenser pipe, immersed tube pipeline section surface sets multiple spare mouths of a river, is connected by three-way connection with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with inlet and outlet.Relative to traditional condensing plant, when coolant water temperature is more than setting value, it the spare mouth of a river can be used to cement out high-temperature cooling water, keep coolant water temperature under certain value.The present invention efficiently solves the aquation heat problem that large-scale immersed tube pipeline section generates, and immersed tube pipeline section intensity is made to reach design requirement, guarantees wall quality.
Description
Technical field
The present invention relates to mass concrete maintenance technology, more particularly, to a kind of immersed tube pipeline section condense pipe device and
Construction method.
Background technique
In recent years, immersed tube tunnel is because can be well solved the leap problem in waters, while is reduced again to ambient enviroment
It influences, solves the problems, such as the shipping of water field of big area, thus using increasing in across river engineering over strait.Wherein immersed tube pipeline section
It is prefabricated be a vital ring in immersed tube tunnel engineering, the quality of pipeline section is related to the success or not of engineering.And in immersed tube
When pouring side wall concrete in prefabricated engineering, due to the constraint by underplate concrete, by hydration heat of concrete generation
The temperature difference caused by portion's concrete temperature rise and New-old concrete shrink difference, and generation tensile stress in portion's easily leads to structure within the walls on the outside
There is crack.Therefore, the heat of hydration for how efficiently controlling inside concrete avoids the generation of thermal cracking from becoming pipeline section pre-
The emphasis and difficult point of system.Common treatment measures are mostly to adjust concrete mix in engineering at present, adjust concrete former material
Temperature and external sprinkling maintenance is carried out to reduce the heat of hydration, but these treatment measures have biggish limitation.It is existing simultaneously
Often length is larger for some condensation tube apparatus, and cooling water passes through longer distance, often the coolant water temperature before reaching water outlet
Degree has risen to concrete temperature, loses condensation effect, therefore can not efficiently solve the heat of hydration generated when concreting
Problem is still also easy to produce thermal stress cracks, to make walls concrete intensity that design requirement be not achieved.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of immersed tube pipeline section condensation pipe device and construction method, methods
Simply, easy construction, construction effect are good, can efficiently solve the aquation heat problem of immersed tube pipeline section concrete generation, make concrete
Intensity reaches design requirement, guarantees wall quality.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of shunt immersed tube pipeline section condensation pipe device, described device includes the condenser pipe being embedded in immersed tube pipeline section side wall
Be arranged in by condenser pipe for detecting the temperature sensor of concrete temperature, immersed tube pipeline section surface sets multiple spare mouths of a river, leads to
Three-way connection is crossed to be connected with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with inlet and outlet.
Further, the temperature sensor includes water inlet temperature sensor and medium temperature sensor, the water inlet
Temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, and medium temperature sensor is for collecting
The temperature variation data of each condenser pipe surrounding concrete can be detected effectively by the way that temperature data is transmitted to background control system
Concrete internal temperature variation
The water inlet temperature sensor is set to around the water inlet condenser pipe；The medium temperature sensor is set to institute
It states around each condenser pipe bending section.
The S-shaped sinuous setting of vertical profile structure of the condensation tube assembly.
The cross-sectional structure of the condensation tube assembly is monolayer alignment.
In cross section, each condenser pipe is set in the middle part of immersed tube pipeline section.
The condenser pipe top curved section is made of crooked joint, three-way connection, electromagnetic water valve and condenser pipe.
The condensing plant by temperature sensor detection condenser pipe in coolant water temperature, when coolant water temperature be more than setting value,
It the spare mouth of a river can be used to cement out high-temperature cooling water, coolant water temperature in condenser pipe kept to maintain under certain value.
The cooling water of condenser pipe is sent into condenser pipe through high powered water pump for normal-temperature water, while handing over heat by high pressure water extraction machine
Cooling water after changing extracts condenser pipe out.
A kind of construction method of shunt immersed tube pipeline section condensation pipe device, the described method comprises the following steps:
It is calculated Step 1: condenser pipe, temperature measuring point are embedded: selecting the condenser pipe of suitable diameter according to engineering practice, really
Determine temperature sensor burial place, condensation pipe diameter is selected according to immersed tube pipeline section side wall thicknesses, and thickness is less than more than or equal to 0.6m
0.8m is selectedCondenser pipe；Thickness is more than or equal to 0.8m and selects less than 1.0mCondenser pipe；Thickness is big
It is selected in 1.0mCondenser pipe；
Step 2: line setting, material are processed: according to the determined numerical value of previous step, the line setting on smooth location,
Screwing steel bars and condenser pipe；
Step 3: thermometric facility, condenser pipe install: production steel reinforcement cage, determine position installation condenser pipe, electromagnetic water valve and
Temperature sensor；
Step 4: template, facility installation review: building side wall template, install relevant device and check, including condenser pipe is close
The inspection of closing property, temperature measuring equipment inspection, Fan Equipment inspection, steel reinforcement cage inspection；
Step 5: concreting, condensing plant starting；
Step 6: temperature dynamic controls: according to temperature sensor feedback data dynamic regulation cooling water rate, controlling coagulation
Soil temperature degree；
Step 7: condenser pipe mud jacking.
Beneficial effects of the present invention are mainly manifested in: (1), method and step is simple, design is reasonable and it is simple and convenient to use, real
Border Engineering operation is practical；(2), practical temperature control process relies on intelligent temperature sensor Real-time Feedback, can be with by this method
Improve cooling efficiency；(3), practical value is high and using effect is good, compares existing cooling means, high-efficient, larger to reduce greatly
The probability that crack generates；(4), it is provided with the spare mouth of a river compared to traditional condensing plant, high-temperature cooling water can be cemented out, kept
Coolant water temperature is under certain value, good cooling results；(5), applied widely, the immersed tube pipe of various sizes can be effectively applicable to
Section.
Detailed description of the invention
Fig. 1 is method flow block diagram of the invention.
Fig. 2 is condensation pipe device vertical section overall schematic
Fig. 3 is immersed tube pipeline section schematic cross section.
Fig. 4 is condensation pipe device vertical section partial schematic diagram.
Fig. 5 is crooked joint schematic diagram at the spare mouth of a river of condenser pipe.
Fig. 6 is condenser pipe crooked joint.
Description of symbols
1-condenser pipe；2-immersed tube pipeline sections；3-water inlets；4-water outlets；5-water inlet temperature sensors；6-is spare
The mouth of a river；7-medium temperature sensors；8-crooked joints；9-short tubes；10-three-way connections；11-electromagnetic water valves；12-is spare
Mouth of a river adapter tube.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawing to the present invention make into
The description of one step.
Referring to Fig.1~Fig. 6, a kind of immersed tube pipeline section condensation pipe device, described device includes being embedded in 2 side wall of immersed tube pipeline section
Condenser pipe 1 and be arranged in by condenser pipe for detecting the temperature sensor of concrete temperature, 2 surface of immersed tube pipeline section sets multiple standby
Water nozzle 6 is connected by three-way connection 10 with condenser pipe 1；The two ends of the condensation tube assembly are respectively equipped with water inlet 3 and go out
The mouth of a river 4.
Further, the temperature sensor includes water inlet temperature sensor 5 and medium temperature sensor 7, the water inlet
Mouth temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, and medium temperature sensor is for receiving
The temperature variation data for collecting each condenser pipe surrounding concrete can be examined effectively by the way that temperature data is transmitted to background control system
Survey concrete internal temperature variation
The water inlet temperature sensor is set to around the water inlet condenser pipe；The medium temperature sensor is set to institute
It states around each condenser pipe bending section.
The S-shaped sinuous setting of vertical profile structure of the condensation tube assembly.
The cross-sectional structure of the condensation tube assembly is monolayer alignment.
In cross section, each condenser pipe is set in the middle part of immersed tube pipeline section.
The condenser pipe top curved section is made of crooked joint 8, three-way connection, electromagnetic water valve and condenser pipe.
The condensing plant by temperature sensor detection condenser pipe in coolant water temperature, when coolant water temperature be more than setting value,
It the spare mouth of a river can be used to cement out high-temperature cooling water, coolant water temperature in condenser pipe kept to maintain under certain value.
The cooling water of condenser pipe is sent into condenser pipe through high powered water pump for normal-temperature water, while handing over heat by high pressure water extraction machine
Cooling water after changing extracts condenser pipe out.
A kind of construction method process flow of immersed tube pipeline section condensation pipe device as shown in Figure 1.The condenser pipe, thermal detector
With immersed tube pipeline section relative position as shown in Fig. 2, condenser pipe is embedded in immersed tube inner tube segment, the water inlet temperature sensor is set to
Around the water inlet condenser pipe, medium temperature sensor is set to around each condenser pipe lateral bending section.Condense pipe device
Cross section is as shown in figure 3, two adjacent parallel condensers are connected by crooked joint.Pipe device horizontal profile is condensed as shown in figure 4, cold
Solidifying pipe is set in the middle part of immersed tube pipeline section.
Detailed process is as follows:
It is 11.5m with width, is highly 6.4m, for length is the immersed tube pipeline section of 20m.
1, condenser pipe, temperature measuring point are embedded calculates:
It selectsThe steel pipe of thickness 3mm, each parallel tube spacing are 500mm, longitudinally leave every section tube coupling end
200mm starts to arrange, bottommost condenser pipe and pipeline section bottom boundaries are away from for 1000mm.Entery and delivery port need to draw concrete surface
1000mm or more, the spare mouth of a river need to draw concrete surface 1000mm or more.
2, line setting, material processing: according to the determined numerical value of previous step, the line setting on smooth location, processing
Reinforcing bar and condenser pipe.Because condensation section length is big, when processing, carrying pay attention to that steel pipe can not be damaged, while paying attention to construction personnel's safety.
3, thermometric facility, condenser pipe installation:
Steel reinforcement cage is made, is determining position installation condenser pipe and temperature sensor.The following is needed to pay attention to when installation:
1) when sensor is installed, need to be isolated with insulating materials with reinforcing bar contact position sensor, so as to monitor coagulation
The internal temperature variation of soil.
2) condenser pipe is installed while banding steel cage, condenser pipe will be staggered with main reinforcement when installation, when local pipeline section is wrong
When being provided with difficulty, the position of appropriate moving condensation pipe.Condenser pipe is firm with framework of steel reinforcement or cableway binding, prevents from mixing
In solidifying soil casting process, condenser pipe is deformed or is fallen off.
3) sensor is numbered in a pre-installation.After sensor is installed, it is necessary to carry out testing and debugging.Medium temperature passes
Sensor is numbered by water (flow) direction, is followed successively by 7-1,7-2,7-3；The spare mouth of a river by water (flow) direction number, be followed successively by 6-1,
6-2、6-3···。
4, facility installation review: including condenser pipe leak detection, temperature measuring equipment inspection, pump equipment inspection, steel reinforcement cage
It checks.Specifically, water sending device is 25GDL2-12 type water pump, it is connected with water inlet；Water plug is that the centrifugation of 4-72C type is drawn water
Machine is connected with water outlet.
5, concreting, condensing plant starting:
1) prepared by concrete
The concrete for being suitble to this engineering to use is prepared, pays attention to the cement using low hydration heat.
2) casting concrete
Tamping is vibrated while casting concrete, pays attention to that condenser pipe and temperature sensor can not be damaged when vibrating.Concrete
When pouring, concrete must not direct impact temperature sensor, be damaged to prevent sensor.
3) water flowing is cooling
After concrete covers and vibrates, start thermometric after waiting 10h, while the water flowing in condenser pipe can be started.
The flow control of cooling water is in 1.2-1.5m3/h.Nearby quarantine measures are arranged in intake-outlet, forbid irrelevant personnel close, operate
Personnel take care.
6, temperature controls:
According to temperature sensor feedback data dynamic regulation cooling water rate, concrete temperature is controlled.
1) data collection
This project is connected to a computer by being embedded in wall temperature sensor, can accurately detect mass concrete temperature
Difference.Water inlet temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, medium temperature sensing
Device is used to collect the temperature variation data of each condenser pipe surrounding concrete.For shown in Fig. 4, the detection of water inlet temperature sensor
Temperature is numerical value 1；The medium temperature sensing detection temperature that number is 7-1 is numerical value 2.
2) data comparison
Numerical value 1 and numerical value 2 compare, and when numerical value 2 is more than 1.6 times of numerical value 1, i.e., when cooling water temperature is excessively high, carry out cold
But water is replaced；When numerical value 2 is less than 1.6 times of numerical value 1, i.e., when cooling water temperature is normal, water flowing as usual, by next centre
Temperature sensor data and numerical value 1 compare, and so repeat to the last one sensor.
3) cooling water is replaced
Cooling water overheats in condenser pipe at this time, to guarantee condensation effect, must extract superheated water out.Continue by taking Fig. 4 as an example, into
Water outlet water pump stops operating, and electromagnetic water valve is closed at 6-1, and 6-1 connects a 4-72C type centrifugation water pumper, and 6-2 connects one
25GDL2-12 type water pump forms two condensing circuits.Continue to monitor, answers device when coolant water temperature returns to room temperature at 7-1
Original continues water flowing.Repeated data collection step.
4) points for attention
1. temperature control and thermometric record must assure that and be carried out continuously, when temperature dynamic controls must someone monitor at the scene.
2. temperature measurement data conscientiously should be recorded carefully, report without delay as a result, so that the temperature control to concrete is implemented more timely
Maintenance measure.
3. atmospheric temperature and the difference of surface temperature of concrete should control within 10 DEG C；The rate of temperature fall of concrete is generally not
Preferably greater than 2 DEG C/d.
7, condenser pipe is in the milk:
After concrete strength reaches code requirement, condenser pipe should be filled up with cement slurry immediately, cement slurry compression strength is not
It obtains and is less than statistics concrete strength.
In conclusion the solution of the present invention is controlled suitable for immersed tube pipeline section temperature joint.The immersed tube pipeline section that the present invention uses is cold
Solidifying pipe device and construction method the advantages such as facilitate, work well with using.The present invention is disclosed as above with preferred embodiment, but
Not to limit the scope of protection of the present invention.Since the case where immersed tube pipeline section generates crack in the construction process, is widely present,
The present invention can be used in most of immersed tube pipeline sections, or the present invention is slightly retouched and changed and is applied again.Protection model of the invention
Claims should be subject to by enclosing.
Claims (10)
1. a kind of shunt immersed tube pipeline section condenses pipe device, which is characterized in that described device includes being embedded in immersed tube pipeline section side wall
In condenser pipe and be arranged in by condenser pipe for detecting the temperature sensor of concrete temperature, immersed tube pipeline section surface sets multiple standby
Water nozzle is connected by three-way connection with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with inlet and outlet.
2. shunt immersed tube pipeline section according to claim 1 condenses pipe device, which is characterized in that the temperature sensor packet
Water inlet temperature sensor and medium temperature sensor are included, the water inlet temperature sensor is for collecting water inlet condenser pipe week
The temperature variation data of concrete is enclosed, medium temperature sensor is used to collect the temperature change number of each condenser pipe surrounding concrete
According to, by the way that temperature data is transmitted to background control system, can effectively detect concrete internal temperature variation.
3. shunt immersed tube pipeline section according to claim 2 condenses pipe device, which is characterized in that the water inlet temperature passes
Sensor is set to around the water inlet condenser pipe；The medium temperature sensor is set to around each condenser pipe bending section.
4. shunt immersed tube pipeline section described according to claim 1~one of 3 condenses pipe device, which is characterized in that the condensation
The S-shaped sinuous setting of the vertical profile structure of tube assembly.
5. shunt immersed tube pipeline section described according to claim 1~one of 3 condenses pipe device, which is characterized in that the condensation
The cross-sectional structure of tube assembly is monolayer alignment.
6. shunt immersed tube pipeline section according to claim 5 condenses pipe device, which is characterized in that each cold in cross section
Solidifying pipe is set in the middle part of immersed tube pipeline section.
7. immersed tube pipeline section described according to claim 1~one of 3 condenses pipe device, which is characterized in that at the top of the condenser pipe
Bending section is made of crooked joint, three-way connection, electromagnetic water valve and condenser pipe.
8. shunt immersed tube pipeline section described according to claim 1~one of 3 condenses pipe device, which is characterized in that the condensation
Equipment is by coolant water temperature in temperature sensor detection condenser pipe, when coolant water temperature is more than setting value, can be used the spare mouth of a river will
High-temperature cooling water cements out, and coolant water temperature in condenser pipe is kept to maintain under certain value.
9. shunt immersed tube pipeline section described according to claim 1~one of 3 condenses pipe device, which is characterized in that condenser pipe
Cooling water is sent into condenser pipe through high powered water pump for normal-temperature water, while extracting the cooling water after heat exchange out by high pressure water extraction machine
Condenser pipe.
10. a kind of construction method of shunt immersed tube pipeline section condensation pipe device as described in claim 1, which is characterized in that institute
State method the following steps are included:
It is calculated Step 1: condenser pipe, temperature measuring point are embedded: selecting the condenser pipe of suitable diameter according to engineering practice, determine temperature
Sensor burial place is spent, condensation pipe diameter is selected according to immersed tube pipeline section side wall thicknesses, and thickness is more than or equal to 0.6m and is less than 0.8m
It selectsCondenser pipe；Thickness is more than or equal to 0.8m and selects less than 1.0mCondenser pipe；Thickness is greater than
1.0m selectingCondenser pipe；
Step 2: line setting, material are processed: according to the determined numerical value of previous step, the line setting on smooth location, processing
Reinforcing bar and condenser pipe；
Step 3: thermometric facility, condenser pipe are installed: production steel reinforcement cage is determining position installation condenser pipe, electromagnetic water valve and temperature
Sensor；
Step 4: template, facility installation review: building side wall template, install relevant device and check, including condenser pipe airtightness
Inspection, temperature measuring equipment inspection, Fan Equipment inspection, steel reinforcement cage inspection；
Step 5: concreting, condensing plant starting；
Step 6: temperature dynamic controls: according to temperature sensor feedback data dynamic regulation cooling water rate, controlling coagulation soil temperature
Degree；
Step 7: condenser pipe mud jacking.
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| CN201910737765.6A CN110524674A (en) | 2019-08-12 | 2019-08-12 | Shunt immersed tube pipeline section condenses pipe device and construction method |
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| CN201910737765.6A CN110524674A (en) | 2019-08-12 | 2019-08-12 | Shunt immersed tube pipeline section condenses pipe device and construction method |
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| CN111779279A (en) * | 2020-06-30 | 2020-10-16 | 中国一冶集团有限公司 | Method for controlling internal and external temperature difference of mass concrete |
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| CN111779279A (en) * | 2020-06-30 | 2020-10-16 | 中国一冶集团有限公司 | Method for controlling internal and external temperature difference of mass concrete |
| CN115419071A (en) * | 2022-09-06 | 2022-12-02 | 中建八局第一建设有限公司 | Large-volume concrete cooling system and construction method |
| CN115419071B (en) * | 2022-09-06 | 2023-06-20 | 中建八局第一建设有限公司 | Large-volume concrete cooling system and construction method |
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Application publication date: 20191203 |
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