CN-122013679-A - Intelligent annular spraying device and method for pier stud

CN122013679ACN 122013679 ACN122013679 ACN 122013679ACN-122013679-A

Abstract

The invention relates to the technical field of bridge construction maintenance, in particular to an intelligent annular spraying device and method for pier studs, comprising an annular spraying mechanism, a humidity acquisition module, a strength monitoring module, a controller and a water supply mechanism, wherein the annular spraying mechanism is circumferentially arranged on the periphery of the pier studs and is communicated with the water supply mechanism through a water supply pipeline to form a stable physical water film maintenance layer, so that the problems of film damage and maintenance interruption caused by high wind tearing are avoided; the surface humidity data is monitored in real time through the concrete surface humidity sensor, spraying maintenance is automatically started when the humidity is lower than a preset threshold value, the continuous wet state is ensured, the concrete stress sensor collects stress or strain data in real time and generates a concrete strength value, spraying is automatically stopped when the strength reaches the preset threshold value, and accurate on-demand maintenance is realized. By adopting the technical scheme, the technical problems of poor maintenance continuity and quick water evaporation in high-altitude strong wind environment are effectively solved.

Inventors

ZHANG CHENGMING
HUANG PENG
ZHANG HENG
LIU LEI
CAO BIN
YANG HUI
CHEN XIAOXIAO
Zhong Ganyao
YANG YONGZHEN
MAO GUANGMING
HUANG YUYI
SUN MI
HU JUN
Xi Chenghu
ZHANG JUN
TANG XIAO
ZHANG YANGE
YU BO
LI BIN

Assignees

四川港建水利水电工程有限责任公司
四川路桥建设集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260416

Claims (9)

1. An intelligent annular spraying device of a pier stud is characterized in that, The device comprises an annular spraying mechanism, a humidity acquisition module, an intensity monitoring module, a controller and a water supply mechanism, wherein the annular spraying mechanism is fixed on the periphery of the pier column in a layered and encircling manner through a telescopic annular support and is used for uniformly spraying maintenance water to the surface of the pier column; The humidity acquisition module comprises at least two groups of concrete surface humidity sensors fixedly arranged on the surface of the pier stud, wherein the concrete surface humidity sensors are respectively arranged on the surface of the windward opening and the leeward opening of the pier stud, and the humidity acquisition module is used for acquiring humidity data of the surface of the pier stud in real time; the strength monitoring module is a concrete stress sensor pre-embedded in the pier column, and is used for collecting stress or strain data in the pier column in real time and generating a concrete strength value according to a preset strength calculation model; the humidity acquisition module and the intensity monitoring module are both in communication connection with the controller, and the water supply mechanism is communicated with the annular spraying mechanism through a water supply pipeline and is electrically connected with the controller; The controller is configured to: Receiving pier column surface humidity data acquired by the humidity acquisition module, and sending a starting signal to the water supply mechanism when the surface humidity data is lower than a preset humidity threshold value so as to drive the annular spraying mechanism to carry out spraying maintenance; And receiving the concrete strength value acquired by the strength monitoring module, and sending a stop signal to the water supply mechanism to terminate the spraying operation when the concrete strength value reaches a preset curing termination strength threshold value.
2. The intelligent annular spraying device of the pier column according to claim 1, wherein, The humidity acquisition module further comprises an environment humidity sensor, wherein the environment humidity sensor is arranged at the outer side of the pier stud at a rain shelter position and is electrically connected with the controller and used for acquiring environment air humidity data, and the controller dynamically adjusts spraying duration and spraying frequency according to the difference value between the surface humidity and the environment humidity.
3. The intelligent annular spraying device of the pier column according to claim 2, wherein, The annular spraying mechanism comprises an annular water supply pipe and a plurality of adjustable spray heads, wherein the annular water supply pipe is fixed on the periphery of the pier stud in a surrounding mode and is communicated with the water supply mechanism through a water supply pipeline, the adjustable spray heads are uniformly distributed along the annular water supply pipe, a spray head water outlet of each adjustable spray head is arranged towards the surface of the pier stud, and the spraying angle and the spraying amount of each adjustable spray head can be independently adjusted.
4. The intelligent annular spraying device of the pier column according to claim 3, wherein, The water supply pipeline is provided with an electromagnetic valve which is in communication connection with the controller.
5. The intelligent annular spraying device of the pier column according to claim 4, wherein, The intelligent annular spraying device further comprises a temperature acquisition module, the temperature acquisition module comprises a concrete surface temperature sensor and an environment temperature sensor, the concrete surface temperature sensor and the environment temperature sensor are respectively arranged at the position of the pier column surface and the position of the pier column outside, which is away from light, the concrete surface temperature sensor and the environment temperature sensor are electrically connected with the controller, the concrete surface temperature sensor is used for acquiring the pier column surface temperature in real time, the environment temperature sensor is used for acquiring the environment temperature in real time, and the controller is used for assisting in judging spraying start time according to temperature difference data between the pier column surface temperature and the environment temperature.
6. The intelligent annular spraying device of the pier column according to claim 5, wherein, The intelligent annular spraying device further comprises a chromaticity acquisition module, wherein the chromaticity acquisition module is arranged on the surface of the pier stud and is electrically connected with the controller and used for acquiring chromaticity information of the surface of the pier stud, and the intelligent annular spraying device is used for assisting in judging the dry and wet state of the surface and is used as a redundant input signal for spraying control.
7. The intelligent annular spraying device of the pier column according to claim 6, wherein, The water supply mechanism comprises a main water tank, a standby water tank, a main variable-frequency water pump and a standby water variable-frequency water pump, wherein the input end of the main variable-frequency water pump is connected with a main water tank pipeline, the output end of the main variable-frequency water pump is connected with an annular water supply pipe through a water supply pipeline, the input end of the standby water variable-frequency water pump is connected with the standby water tank pipeline, the output end of the standby water variable-frequency water pump is connected with the annular water supply pipe through the water supply pipeline, the main water tank and the standby water tank are respectively provided with an insulating layer and an electric heat tracing device, and the water supply pipeline is a heat insulating pipe and is provided with a heat tracing device and a back flushing interface.
8. An intelligent annular spraying method for pier studs, which is applied to the intelligent annular spraying device for pier studs according to claim 7, is characterized by comprising the following steps: Collecting pier column surface humidity data in real time through the concrete surface humidity sensor, collecting stress or strain data in the pier column in real time through the concrete stress sensor, and generating a concrete strength value according to a preset strength calculation model; comparing the collected surface humidity data with a preset humidity threshold, and when the surface humidity is lower than the preset humidity threshold, sending a starting signal to the water supply mechanism by the controller to drive the annular spraying mechanism to carry out spraying maintenance; And comparing the generated concrete strength value with a preset curing termination strength threshold, and when the concrete strength value reaches the preset curing termination strength threshold, sending a stop signal to the water supply mechanism by the controller to terminate the spraying operation.
9. The intelligent annular spraying method of the pier column according to claim 8, wherein, The preset curing termination strength threshold is 70% of the designed strength of the concrete.

Description

Intelligent annular spraying device and method for pier stud Technical Field The invention relates to the technical field of bridge construction maintenance, in particular to an intelligent annular spraying device and method for pier columns. Background After the bridge pier concrete pouring is completed, continuous maintenance is needed to ensure that cement is fully hydrated, and the problems of shrinkage crack and insufficient strength caused by too fast evaporation of water are prevented. The traditional curing mode mostly adopts covering plastic film, straw curtain or manual watering, relies on manual experience to judge curing time and duration. Wherein, the plastic film is one of the curing means widely used at present because of low cost and simple operation. However, in high altitude mountainous areas, traditional plastic films are extremely easy to tear and break by strong wind due to severe weather conditions, so that moisture on the surface of the pier column is rapidly evaporated, and shrinkage cracks appear in concrete. The frequent replacement of the film not only increases the construction cost, but also interrupts the maintenance continuity, and seriously affects the early strength development and the structural durability of the concrete. In addition, manual watering mode is difficult to carry out accurate regulation and control according to concrete actual water demand state, often appears watering inadequately or excessively watering problem. Therefore, how to realize continuous, accurate and automatic maintenance of pier concrete in the environments with high altitude, strong wind and severe temperature and humidity changes is a technical problem to be solved in the field. Disclosure of Invention The invention aims to provide an intelligent annular spraying device and method for pier studs, which solve the technical problems of maintenance interruption and shrinkage crack caused by rapid evaporation of concrete water due to easy damage of plastic films in a high-altitude strong wind environment in the prior art. In order to achieve the purpose, the invention provides an intelligent annular spraying device of a pier stud, which comprises an annular spraying mechanism, a humidity acquisition module, a strength monitoring module, a controller and a water supply mechanism, wherein the annular spraying mechanism is fixed on the periphery of the pier stud in a layered and encircling manner through a telescopic annular bracket and is used for uniformly spraying maintenance water to the surface of the pier stud; The humidity acquisition module comprises at least two groups of concrete surface humidity sensors fixedly arranged on the surface of the pier stud, wherein the concrete surface humidity sensors are respectively arranged on the surface of the windward opening and the leeward opening of the pier stud, and the humidity acquisition module is used for acquiring humidity data of the surface of the pier stud in real time; the strength monitoring module is a concrete stress sensor pre-embedded in the pier column, and is used for collecting stress or strain data in the pier column in real time and generating a concrete strength value according to a preset strength calculation model; the humidity acquisition module and the intensity monitoring module are both in communication connection with the controller, and the water supply mechanism is communicated with the annular spraying mechanism through a water supply pipeline and is electrically connected with the controller; The controller is configured to: Receiving pier column surface humidity data acquired by the humidity acquisition module, and sending a starting signal to the water supply mechanism when the surface humidity data is lower than a preset humidity threshold value so as to drive the annular spraying mechanism to carry out spraying maintenance; And receiving the concrete strength value acquired by the strength monitoring module, and sending a stop signal to the water supply mechanism to terminate the spraying operation when the concrete strength value reaches a preset curing termination strength threshold value. The humidity acquisition module further comprises an environment humidity sensor, wherein the environment humidity sensor is arranged at the outer side of the pier stud and is electrically connected with the controller and used for acquiring environment air humidity data, and the controller dynamically adjusts spraying duration and spraying frequency according to the difference value between the surface humidity and the environment humidity. The annular spraying mechanism comprises an annular water supply pipe and a plurality of adjustable spray heads, wherein the annular water supply pipe is fixed on the periphery of the pier stud in a surrounding mode and is communicated with the water supply mechanism through a water supply pipeline, the adjustable spray heads are uniformly distributed along the annular water supply pipe, a