CN-121992792-A - Underwater concrete pouring guide pipe regulating and controlling system and regulating and controlling method thereof

CN121992792ACN 121992792 ACN121992792 ACN 121992792ACN-121992792-A

Abstract

The invention provides an underwater concrete pouring conduit regulation and control system and a regulation and control method thereof, wherein the regulation and control system comprises a jacket; the system comprises a catheter, a height automatic monitoring device, a catheter depth measuring device, a pouring square quantity monitoring device and a data processing and decision making module. The method and the device realize continuous, automatic and high-precision calculation of the embedded depth of the conduit by carrying out collaborative acquisition and fusion analysis on multisource construction information such as the height of a concrete pouring interface, the depth of a conduit inlet, the pouring square quantity and the like, avoid the problems of error accumulation and insufficient instantaneity caused by intermittent measurement depending on manual experience in the traditional construction process, enable the embedded depth of the conduit to be always in a controllable range by synchronously monitoring the state of the concrete interface and the spatial position of the conduit, thereby effectively reducing the risk of quality defects such as slurry and mud clamping caused by too shallow embedded depth, and reducing the pipe blocking and pipe pulling difficulty caused by too deep embedded depth.

Inventors

CHEN CHENG
CHEN QIAN
WAN JIE
MENG DONG
LIU LIBIN
LI SHIJIE
LI JIACHENG
LI XUESONG
LI DEJIE
ZHAO XU
FU WANGLIN
DU LEI
Lv shuangjiang
XU ZONGLING

Assignees

中交第二航务工程局有限公司

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (10)

1. The underwater concrete pouring conduit regulation and control system is characterized by comprising the following components: a jacket (1) disposed on the ground above the pile hole; a conduit (4) inserted into the pile hole from the inside of the jacket (1) and used for casting concrete; The automatic height monitoring device (2) is arranged on the jacket (1) and is used for continuously measuring the height of a concrete pouring interface; a conduit depth measuring device (5) arranged on the jacket (1) for measuring the depth of the inlet of the conduit; The pouring square quantity monitoring device (6) is arranged at the feeding end of the guide pipe (4) and is used for acquiring the real-time pouring square quantity of the concrete; The data processing and decision-making module is used for receiving the data of the height automatic monitoring device (2), the catheter depth measuring device (5) and the pouring party quantity monitoring device (6), carrying out fusion analysis on the received data and generating construction guiding information.
2. The underwater concrete pouring conduit regulation and control system according to claim 1, wherein the automatic height monitoring device (2) comprises a measuring hammer, a steel wire rope, a tension detecting unit and a control unit, the control unit judges the medium state of the measuring hammer according to the change relation between the dead weight of the measuring hammer and the tension of the steel wire rope, and when the tension is lower than a preset threshold value, the measuring hammer is judged to reach a concrete interface, and the corresponding lowering depth is recorded.
3. The underwater concrete placement conduit regulation and control system of claim 2, wherein the outlet control unit is provided with a slurry-slurry demarcation threshold and a slurry-concrete demarcation threshold, the demarcation threshold is a dynamic threshold, and the initial value of the demarcation threshold is set based on the weight of the measuring hammer and the slurry parameters of the construction site and is regulated according to the characteristics of the tensile depth curve in the measuring process.
4. The underwater concrete placement catheter control system as recited in claim 3, wherein the control unit is configured to identify a medium mutation location and adaptively correct a demarcation threshold value by performing a first-order differential analysis and a second-order differential analysis on the tension depth curve.
5. The underwater concrete placement conduit regulation and control system as set forth in any one of claims 1-4, further comprising a pile top identification probe (3) preset at a designed pile top elevation position, the pile top identification probe being electrically connected with the automatic height monitoring device (2) for auxiliary confirmation of whether the concrete reaches the pile top elevation when the measuring hammer enters a preset check interval.
6. The underwater concrete pouring conduit regulation and control system according to claim 1 is characterized in that the conduit (4) is of a multi-section splicing structure; The catheter depth measuring device (5) comprises a host machine (501), wherein an elastic telescopic rod (502) is hinged to the side end face of the host machine, a roller type meter counter (503) is arranged at the end of the elastic telescopic rod (502) and used for rolling contact with the outer wall of the catheter and measuring axial displacement of the catheter, and reset springs (504) connected with the shell of the host machine (501) are arranged on the upper side and the lower side of the elastic telescopic rod (502) so that the roller type meter counter (503) can recover to a fitting state after crossing the joint of the catheter (4).
7. The underwater concrete placement conduit regulation and control system of claim 6, wherein an edge calculation module is integrated in the host machine (501), the edge calculation module is configured to analyze step characteristics of signals of the roller meter (503) to automatically identify the disassembly node number of the conduit, and to combine the disassembly node number with actual measurement data of the roller meter (503) to calculate the real-time access depth of the conduit; The edge calculation module is also configured with redundancy check for the real-time entrance depth of the guide pipe based on the single section standard length of the guide pipe (4), and when the check deviation exceeds a preset threshold value, the abnormality prompt is triggered.
8. The underwater concrete placement conduit regulation and control system as set forth in claim 7, wherein the data processing and decision module is configured with a real-time burial depth calculation module for calculating the conduit (4) based on the conduit real-time access depth, the concrete placement interface height and the pore-forming depth; and the data processing and decision-making module is also provided with safety pre-warning logic which is executed based on the real-time burial depth of the catheter and is used for prompting continuous pouring, paying attention to burial depth or pipe drawing operation.
9. The underwater concrete placement conduit regulation and control system of claim 8, wherein the data processing and decision module is further provided with a multi-source information fusion diagnosis unit for fusing theoretical elevation, actual measurement elevation and conduit burial depth change characteristics of the concrete and identifying reaming or necking working conditions.
10. An underwater concrete pouring conduit regulating and controlling method is characterized in that the underwater concrete pouring conduit regulating and controlling system is adopted, and the method comprises the following steps: s1, acquiring real-time height information of a concrete pouring interface in an underwater concrete pouring process; S2, synchronously acquiring displacement information of the pouring guide pipe (4) relative to the orifice or the reference surface, and determining the real-time access depth of the guide pipe (4) according to the displacement information. S3, calculating the real-time burial depth of the guide pipe (4) in the concrete based on the real-time height information of the concrete pouring interface and the real-time access depth of the guide pipe (4); S4, acquiring a real-time pouring square quantity of the concrete, and performing correlation analysis on the pouring square quantity, the real-time height of a concrete pouring interface and the real-time burial depth of the guide pipe (4) to judge the current pouring state; S5, generating corresponding construction early warning information and/or construction operation guiding information according to the pouring state and the real-time burial depth of the guide pipe (4).

Description

Underwater concrete pouring guide pipe regulating and controlling system and regulating and controlling method thereof Technical Field The invention relates to the field of underwater concrete pouring, in particular to an underwater concrete pouring conduit regulating and controlling system and a regulating and controlling method thereof. Background The underwater concrete pouring is widely applied to the construction fields of wading structures such as water conservancy and hydropower engineering, cross-sea bridge foundation engineering, ports and wharfs and the like, and the construction quality is directly related to the overall safety and service durability of the structure. In the prior engineering practice, the pipe-method underwater concrete pouring is widely adopted as a mainstream construction process because the pipe-method underwater concrete pouring can realize continuous molding of concrete under the condition of underwater or high water head. In the construction process of the conduit method, the depth of the conduit embedded in the poured concrete is one of the key control parameters for determining the pouring quality. If the conduit is too shallow, the fresh concrete easily damages the surface layer of the concrete which is not initially set under the action of dead weight and impact, so that slurry or floating slurry is rolled into the concrete to form quality defects such as slurry turning and clamping, and even pile breaking risks are caused when the slurry is serious, and if the conduit is too deep, the smoothness of discharging in a pipe is affected due to the increase of the flowing resistance of the concrete, so that the pipe plugging probability is increased, the pipe pulling resistance is obviously improved, and the difficulty is brought to construction operation. Therefore, in the whole pouring process, the buried depth of the conduit is continuously and accurately monitored and controlled, and the method is a necessary condition for guaranteeing continuous and compact pouring of the underwater concrete. However, existing conduit depth monitoring approaches still suffer from significant drawbacks in engineering applications. On one hand, the partial monitoring scheme adopts high-precision sensing technologies such as fiber bragg gratings, pressure sensors and the like, and the position of a concrete interface is indirectly calculated by sensing the change of water pressure or strain. The system is complex in structure and high in manufacturing cost, has strict requirements on installation conditions and maintenance environments, is difficult to ensure long-term stability and reliability under deep hole, high-muddy water and strong disturbance construction conditions, and limits popularization and application in actual engineering. On the other hand, in most construction sites, the conduit burial depth still mainly depends on a manual measurement mode to obtain. The common practice is that constructors intermittently measure the position of the concrete liquid level by means of simple tools such as a measuring hammer, a pull rope or a measuring tape, and then manually estimate the burial depth by combining the length of the guide pipe. The method is significantly affected by artificial experience, the measurement accuracy is low, the touch feeling of the measuring hammer is easy to be disturbed and the reading error is large under the conditions of thick slurry and fuzzy interface, meanwhile, the casting operation is usually required to be interrupted during manual measurement, continuous and real-time dynamic monitoring is difficult to realize, the risk working conditions such as abnormal change of the concrete liquid level or sudden sinking of a conduit cannot be found in time, in addition, constructors need to frequently perform measurement operation on a wet and slippery narrow working platform, and high potential safety hazards exist. Therefore, the regulation and control system and the regulation and control method for the underwater concrete pouring guide pipe are provided to solve the problems. Disclosure of Invention The invention mainly aims to provide an underwater concrete pouring conduit regulation and control system and a regulation and control method thereof, which solve the problems that the conduit burial depth depends on manual experience, the monitoring precision is low, the real-time performance is poor and abnormal working conditions are difficult to discover in time in the existing underwater concrete pouring process. In order to solve the technical problems, the invention adopts the technical scheme that the underwater concrete pouring conduit regulation and control system and the regulation and control method thereof comprise the following steps: a jacket disposed on the ground above the pile hole; a conduit inserted into the pile hole from the inside of the jacket and used for casting concrete; The automatic height monitoring device is arranged on the jacke