CN-121976466-A - Maintenance method for solar drip irrigation type bridge support mortar layer

CN121976466ACN 121976466 ACN121976466 ACN 121976466ACN-121976466-A

Abstract

A maintenance method for a solar energy drip irrigation type bridge support mortar layer. The method comprises the steps of constructing a solar energy drip irrigation type bridge support mortar layer maintenance system, preparing in the early stage, laying a covering layer, initializing drip irrigation parameters, performing automatic maintenance operation, dynamically regulating and controlling temperature and humidity, managing maintenance period, recovering the system, archiving files and the like. The invention has the advantages that the solar power supply module is adopted to realize conversion and storage of light energy to electric energy without depending on commercial power, the timer and the temperature and humidity monitoring module are used for cooperatively controlling to realize automatic adjustment of drip irrigation frequency and dynamic regulation of temperature and humidity, the non-woven fabric cooling, the cotton heat-insulating layer and the accurate drip irrigation water supplementing are combined to maintain the optimal maintenance environment with the mortar humidity of more than or equal to 95 percent and the temperature of 5-35 ℃, the drip irrigation mode is adopted to accurately supplement water, the green construction concept is met, and the design of the cover layer compaction and fixation, the standby lithium battery and the like can effectively cope with severe weather such as high temperature, strong wind, continuous overcast and rainy weather and the like, and ensure the continuity and the stability of the maintenance process.

Inventors

Man hui
LI CHAOJIE
GUO YONGZHI
BIAN CHUNMING
CHEN LEIMING
ZHANG MING
CHEN PENGFEI
LIU ZEWEI
YAO ZHANFANG
WANG XIANDONG
ZHANG YASONG
LI JIANXUE
ZHANG ZHIDONG
LI QIULI
WANG XUN
YAN YUHONG

Assignees

中铁六局集团有限公司
中铁六局集团丰桥桥梁有限公司

Dates

Publication Date: 20260505
Application Date: 20260129

Claims (8)

1. A maintenance method of a solar energy drip irrigation type bridge support mortar layer is characterized by comprising the following steps in sequence: 1) constructing a solar energy drip irrigation type bridge support mortar layer maintenance system, wherein the system comprises a solar energy power supply module (3), a drip irrigation execution module (4), a cover moisturizing module (5), a monitoring module (6) and a controller (33), the solar energy power supply module consists of a solar cell panel (31) and a lithium battery (32), the solar cell panel (31) is fixed on a support positioned on the outer side of the bridge support (1) in an inclined mode, the cover moisturizing module (5) comprises a non-woven fabric layer and covers the exposed surface of the bridge support mortar layer (2), the drip irrigation execution module (4) comprises a micro diaphragm pump (41), a timer (42) and a PE drip irrigation pipe (43), a water inlet of the micro diaphragm pump (41) is connected with a water source through a pipeline, a water outlet of the PE drip irrigation pipe (43) is arranged on the surface of the bridge support mortar layer (2) in a surrounding mode, a plurality of water droppers (44) are arranged on the PE drip irrigation pipe (43) at intervals, the timer (42) is electrically connected with the micro diaphragm pump (41), the monitoring module (6) comprises a temperature sensor and a humidity sensor, a humidity sensor (31) and a wireless sensor (33) are connected with a humidity sensor (2) on the surface of the bridge support through a wireless sensor, and a wireless sensor is connected with the humidity sensor (33) and a wireless sensor is in contact with the surface of the bridge support, and the humidity sensor is in a wireless control unit The lithium battery (32), the micro diaphragm pump (41) and the timer (42) are electrically connected; 2) The preparation in the early stage comprises the steps of cleaning the floating slurry and greasy dirt on the surface of the support cushion stone 24 hours before grouting, pre-wetting a base surface and removing accumulated water, grouting in a supported template, and controlling the temperature of the mortar entering the template to be less than or equal to 30 ℃ and the basic temperature to be less than or equal to 35 ℃ in the grouting process; 3) The covering layer is paved, after grouting, a non-woven fabric layer is tightly attached to the whole exposed surface of the bridge support mortar layer (2) within 1-4 hours before the initial setting of the bridge support mortar layer (2), and then the periphery of the bridge support mortar layer is compacted and fixed by a pressing strip so as to prevent wind blowing and lifting; 4) Setting initial drip irrigation parameters through a timer (42), setting the initial drip irrigation parameters to drip irrigation for 5-10min every 1h in a normal temperature environment with the temperature of 15-25 ℃ and encrypting the initial drip irrigation parameters to drip irrigation for 5-10min every 0.5h in a high-temperature strong wind environment with the temperature of more than 30 ℃ or the wind speed of more than 3 m/s; 5) The automatic maintenance operation comprises the steps of starting a solar cell panel (31) under the control of a controller (33), charging a lithium battery (32) and supplying power to all power utilization components in the system, directly supplying power to the lithium battery (32) in continuous rainy days, periodically starting a micro diaphragm pump (41) under the control of a timer (42), uniformly drip irrigation and supplementing water to the surface of a bridge support mortar layer (2) through a drip emitter on a PE drip irrigation pipe (43), and simultaneously collecting temperature and humidity monitoring data of the surface of the bridge support mortar layer (2) in real time by utilizing a temperature sensor and a humidity sensor and transmitting the temperature and humidity monitoring data to the controller (2) through a wireless transmission unit; 6) The controller (33) performs dynamic regulation and control on the temperature and humidity according to the temperature and humidity monitoring data, when the temperature is monitored to be more than 35 ℃, the non-woven fabric layer is kept to be fully covered until the surface temperature of the bridge support mortar layer (2) is reduced to 8-12 ℃, when the temperature is monitored to be less than 5 ℃, a cotton heat preservation layer is additionally arranged on the outer side of the non-woven fabric layer, drip irrigation and water supplementing is stopped, the humidity is maintained by virtue of the water retention of the non-woven fabric layer, when the ambient temperature is lower than 0 ℃, drip irrigation and water supplementing is strictly forbidden, and heat preservation and moisture preservation are performed only by virtue of the covering and moisturizing module (5) so as to prevent the bridge support mortar layer (2) from being frozen and damaged, and when the humidity is monitored to be less than 90%, the controller (33) triggers a timer (42) to shorten drip irrigation interval time so as to encrypt drip irrigation frequency; 7) The maintenance period management and system recovery are that the common mortar maintenance period is not less than 7 days, the high-strength shrinkage-free grouting material maintenance period is not less than 14 days, the compressive strength test is carried out by adopting the same-condition maintenance test blocks on the 3 rd, 7 th and 14 th days of maintenance, the template is removed after the strength reaches 20MPa required by the high-speed railway bridge and culvert engineering construction quality standard (TB 10752-2018), and the system is removed after the strength reaches more than 80% of design value; 8) And (3) archival archiving, namely cleaning the mortar remained on the surface of the bridge support (1), screwing the support bolts, and finishing temperature and humidity monitoring data, drip irrigation parameter adjustment records and strength detection reports in the maintenance process to form the complete maintenance archival archiving.
2. The maintenance method of a solar energy drop irrigation type bridge support mortar layer according to claim 1, wherein in the step 1), the covering and moisturizing module (5) further comprises a cotton insulation layer, and the cotton insulation layer covers the outside of the non-woven fabric layer when the environmental temperature is too low.
3. The method for maintaining a mortar layer of a solar energy drop irrigation type bridge support according to claim 1, wherein in the step 1), the controller (33) is an MPPT solar 12V charging and discharging controller.
4. The maintenance method of a solar drip irrigation type bridge support mortar layer according to claim 1, wherein in the step 1), the inclination angle of the solar cell panel (31) is set to 30-45 degrees according to the local latitude.
5. The method for maintaining a mortar layer of a solar energy drop irrigation type bridge support according to claim 1, wherein in the step 1), the interval between the drippers (44) on the PE drop irrigation pipe (43) is 5-10cm, and the flow rate of the micro diaphragm pump (41) is set to be 1-3L/min.
6. The maintenance method of a solar energy drop irrigation type bridge support mortar layer according to claim 1, wherein in the step 1), each side surface of the bridge support mortar layer (2) is provided with at least one temperature and humidity sensor respectively.
7. The maintenance method of a solar drip irrigation type bridge support mortar layer according to claim 1, wherein in the step 1), the water retention rate of the non-woven fabric layer is more than 90%.
8. The method for maintaining a mortar layer of a solar energy drop irrigation type bridge support according to claim 1, wherein in the step 1), the lithium battery (32) is a 12V lithium battery.

Description

Maintenance method for solar drip irrigation type bridge support mortar layer Technical Field The invention belongs to the technical field of bridge engineering construction maintenance, and particularly relates to a maintenance method for a solar drip irrigation type bridge support mortar layer. Background The bridge support is a key stress component for connecting the upper structure and the lower structure of the bridge, and the installation quality of the bridge support can directly influence the bearing stability, the durability and the driving safety of the bridge. In the bridge support installation process, high-strength non-shrinkage mortar is generally adopted to fix the lower structure of the bridge support of the steel structure in a grouting manner, and a layer of bridge support mortar layer is formed after the mortar is solidified. The strength of the mortar is closely related to the maintenance quality, and stable temperature and humidity environment (humidity is more than or equal to 95% and temperature is 5-35 ℃) needs to be maintained within 7-14 days after pouring, otherwise, the problems of water loss cracking, insufficient strength and the like are easy to occur, so that the diseases such as uneven stress and void of a support are caused, and the service life of a bridge is seriously influenced. The existing bridge support mortar layer curing method mainly comprises manual watering curing, covering moisture-preserving curing, traditional drip irrigation curing and the like. The manual watering maintenance needs to be carried out by arranging special persons for watering regularly, the problems of low maintenance efficiency and high labor cost exist, the operation difficulty is high in the scenes of outdoor remote bridges, high pier bridges and the like, the uniformity of watering frequency is difficult to ensure, local water loss phenomenon is easy to occur, covering and moisturizing maintenance usually adopts covering materials such as plastic films and non-woven fabrics, continuous water supplement is difficult to realize by simple covering, particularly, the water evaporation is too fast to meet long-term moisturizing requirements in severe weather such as high temperature, strong wind and the like, the traditional drip irrigation maintenance can realize quantitative water supply, but relies on commercial power for supplying power, cannot be applicable in the bridge construction scene without commercial power covering in the open air, and an effective dynamic temperature and humidity regulation mechanism is lacked, so that the maintenance requirements under the condition of varied climates are difficult to cope. In addition, the existing solar irrigation technology is mainly applied to the agricultural field, the technical scheme is mainly designed aiming at soil moisture supply, special requirements of bridge support mortar layer maintenance on temperature and humidity control precision, moisture supply uniformity and severe environment resistance are not considered, and a bridge support mortar layer maintenance scene cannot be directly adapted. Therefore, a bridge support mortar layer maintenance method which can adapt to a field commercial power-free environment, realize accurate regulation and control of temperature and humidity and reduce artificial dependence is needed. Disclosure of Invention In order to solve the problems, the invention aims to provide a maintenance method for a solar drip irrigation type bridge support mortar layer. In order to achieve the purpose, the maintenance method of the solar energy drip irrigation type bridge support mortar layer provided by the invention comprises the following steps in sequence: 1) The system comprises a solar power supply module, a drip irrigation execution module, a covering moisture-preserving module, a monitoring module and a controller, wherein the solar power supply module consists of a solar panel and a lithium battery, the solar panel is fixed on a bracket positioned on the outer side of the bridge support in a tilting manner, the covering moisture-preserving module comprises a non-woven fabric layer and covers the exposed surface of the bridge support, the drip irrigation execution module comprises a micro diaphragm pump, a timer and a PE drip irrigation pipe, a water inlet of the micro diaphragm pump is connected with a water source through a pipeline, a water outlet of the micro diaphragm pump is connected with one end of the PE drip irrigation pipe, the PE drip irrigation pipe is arranged on the surface of the bridge support mortar layer in a surrounding mode, a plurality of drippers are arranged on the PE drip irrigation pipe at intervals, the timer is electrically connected with the micro diaphragm pump, the monitoring module comprises a temperature sensor, a humidity sensor and a wireless transmission unit, a temperature sensing element on the temperature sensor and a humidity sensing element on the humidity sensor a