CN-122013776-A - Self-adaptive conduit burial depth regulation and control system and method for underground continuous wall pouring construction

CN122013776ACN 122013776 ACN122013776 ACN 122013776ACN-122013776-A

Abstract

The invention discloses a self-adaptive conduit buried depth regulating system and a self-adaptive conduit buried depth regulating method for underground continuous wall casting construction, wherein the system comprises a concrete pump truck, a conduit lifting device, a monitoring module and a conduit buried depth control module; the system comprises a conduit lifting device, a conduit burial depth control module, a concrete pump truck, a pump pipe lifting device and a pump pipe control module, wherein the conduit lifting device is used for lifting a conduit, the conduit burial depth control module is used for controlling the operation of the pump pipe lifting device, the concrete pump truck is provided with a concrete pump, a pump pipe, the pump pipe lifting device and the pump pipe control module, the pump pipe lifting device is used for lifting the pump pipe, the pump pipe control module is used for controlling the operation of the concrete pump and the pump pipe lifting device, the monitoring module monitors and collects state data related to the depth of a pump pipe inserted into a conduit, the elevation of the concrete liquid level and parameters of the conduit burial depth in real time, and the conduit burial depth control module receives and processes the monitoring data from the monitoring module, shares the monitoring data with the pump pipe control module and outputs signals to control the conduit lifting device to lift the conduit, so that the conduit burial depth of the conduit is kept within a set range. The invention is suitable for casting underground engineering of continuous walls with higher depth.

Inventors

JIANG ZHIAN
JIAO CHENLEI
HU WEI
ZHANG BAOZENG
HU MINGTAO
CHU XU

Assignees

中国水电基础局有限公司

Dates

Publication Date: 20260512
Application Date: 20260309

Claims (10)

1. The self-adaptive conduit burial depth regulation and control system for the pouring construction of the underground continuous wall is characterized by comprising a concrete pump truck, a conduit lifting device, a monitoring module and a conduit burial depth control module; The pipe lifting device is used for lifting the pipe, and is arranged on the pouring construction platform; the concrete pump truck is used for conveying concrete, a concrete pump, a pump pipe lifting device and a pump pipe control module are arranged on the concrete pump truck, the concrete pump is used for continuously conveying the concrete along a pipeline by utilizing pressure, the pump pipe is used for conveying the concrete from the concrete pump truck to a pouring position, and the output end of the pump pipe is inserted into a guide pipe; The monitoring module is used for monitoring and collecting state data related to the depth of the pump pipe inserted into the guide pipe, the elevation of the concrete liquid level and the burial depth parameter of the guide pipe in real time; The conduit burial depth control module receives the monitoring data from the monitoring module, processes the monitoring data to obtain data, namely the depth of the pump pipe inserted into the conduit, the elevation of the concrete liquid level, the conduit burial depth and the distance between the concrete liquid level and the wall top of the underground continuous wall, sends the processed data to the pump pipe control module, and outputs a signal to control the conduit lifting device to lift the conduit according to the processed data so as to keep the conduit burial depth within a set range; And the pump pipe control module outputs signals to control the pump pipe lifting device to lift the pump pipe and start and stop the concrete pump according to the data from the conduit burial depth control module.
2. The system for regulating and controlling the burial depth of an adaptive conduit for casting construction of an underground diaphragm wall according to claim 1, further comprising a pump pipe auxiliary supporting device for keeping the pump pipe upright during casting, wherein the pump pipe auxiliary supporting device comprises a plurality of arc-shaped guard plates hinged in sequence through hinges, the arc-shaped inner side surfaces of the arc-shaped guard plates are matched with the outer surfaces of the pump pipes, the arc-shaped guard plates are coated on the outer surfaces of the pump pipes, and each hinge is provided with a baffle for limiting the arc-shaped guard plates to turn outwards.
3. The system for regulating and controlling the burial depth of a conduit in accordance with claim 2, wherein each baffle is provided with a magnet, the monitoring module comprises a magnetic induction counter arranged at the top end of the conduit, and the depth of the pump pipe inserted into the conduit is detected by the count value of the magnetic induction counter.
4. The self-adaptive pipe burying depth control system for pouring construction of underground diaphragm wall according to claim 1, wherein the pipe lifting device comprises at least one lifter and a plurality of openable clamping arms, each clamping arm comprises a pair of clamps, the pipe is clamped when the pair of clamps are closed, the clamping arms are divided into two groups, namely an A group clamping arm and a B group clamping arm, the pipe burying depth control module outputs signals to control lifting parts of the lifter and opening and closing of clamps of the clamping arms of the groups, the A group clamping arm is linked with the lifting end of a lifter, when the pipe needs to be lifted, the clamps of the A group clamping arm are closed and lifted along with the lifting end of the lifter, the clamps of the B group clamping arm are opened and kept motionless, when the lifting end of the lifter moves to a position or an upper travel limit switch and a lower travel limit switch of the lifter, the clamps of the B group clamping arm are closed, then the clamps of the A group clamping arm are released, the lifting end of the lifter moves reversely and is reset, rubber pads are arranged on the inner sides of the clamps, and anti-skid patterns are arranged on the outer surfaces of the pipe.
5. The self-adaptive conduit burial depth regulating system for pouring construction of underground diaphragm wall according to claim 1, wherein the conduit lifting device comprises two groups of lifters, namely an A group lifter and a B group lifter, wherein the A group clamping arm is arranged at the lifting end of the A group lifter, the B group clamping arm is arranged at the lifting end of the B group lifter, and when the conduit needs to be lifted, the A group lifter and the B group lifter alternately lift and reset.
6. The self-adaptive conduit burial depth regulating system for pouring construction of the underground diaphragm wall according to claim 1, wherein the conduit comprises a fixed long pipe with a plurality of sections of fixed lengths and a plurality of sections of regulating pipes with different lengths from the fixed long pipe, the upper end of the fixed long pipe or the regulating pipe is provided with a flaring port, an annular bulge is arranged at the position 10-15 cm away from the port at the lower end of the fixed long pipe or the regulating pipe, the diameter of the annular bulge is equal to the outer diameter of the port at the upper end, the port at the lower end of the fixed long pipe or the regulating pipe is in plug-in fit with the port at the upper end of the fixed long pipe or the regulating pipe, an annular clamp is arranged at the plug-in position, and a U-shaped groove for covering the annular bulge and an upper end interface is arranged inside the annular clamp.
7. The adaptive conduit burial depth control system for underground diaphragm wall casting construction of claim 6, wherein the control pipe is composed of two detachable half-ring pipes.
8. The self-adaptive conduit burial depth regulating system for pouring construction of underground continuous wall according to claim 1, wherein the monitoring module comprises a laser distance meter and/or an ultrasonic distance meter, and the laser distance meter and/or the ultrasonic distance meter are used for measuring the distances between the concrete liquid level, the conduit top end and the reference point of the vertical section of the pump pipe and the reference plane.
9. An adaptive conduit burial depth control method for underground diaphragm wall casting construction using the adaptive conduit burial depth control system for underground diaphragm wall casting construction of claim 1, characterized in that the method comprises the following steps: Setting a known reference surface elevation, a depth of a casting groove of the underground continuous wall, an elevation of a designed top surface of the underground continuous wall, a total length of a guide pipe and a length from a reference point of a vertical section of a pump pipe to an output port of the pump pipe, wherein in the concrete casting process, a guide pipe embedded depth control module calculates data and known data detected in real time by a monitoring module to obtain the elevation of the concrete liquid surface, the embedded depth of the guide pipe, the depth of the pump pipe inserted into the guide pipe and the distance from the concrete liquid surface to the designed top surface of the underground continuous wall in real time, an output signal controls a guide pipe lifting device to work so as to adjust the embedded depth of the guide pipe, when the distance between the concrete liquid surface and the wall top of the underground continuous wall is greater than 100m, the depth of the guide pipe embedded into the concrete surface is in a range of 2.0-3.0 m, when the distance between the concrete liquid surface and the wall top of the underground continuous wall is in a range of 50 m-100 m, and the depth of the guide pipe embedded into the concrete surface is in a range of 2.0-2.0 m; The pump pipe control module receives the following information from the conduit burial depth control module in real time, namely the elevation of the concrete liquid level, the insertion depth of the pump pipe into the conduit and the distance between the concrete liquid level and the designed top surface of the underground diaphragm wall, when the concrete liquid level is greater than 30m from the designed top surface of the underground diaphragm wall, the output signal of the pump pipe control module controls the pump pipe lifting device to lift the pump pipe, so that the height range between the output port of the pump pipe and the concrete liquid level is 0.5-1.5 m, and when the concrete liquid level is less than or equal to 30m from the designed top surface of the underground diaphragm wall, the following two methods are adopted for adjusting the height of the pump pipe: The first method comprises the steps of enabling the height of the outlet end of a pump pipe higher than the liquid level of concrete to be 1.5 m-1.8 m, and increasing external water head difference; In the second method, a pump pipe is inserted below the concrete liquid level in the guide pipe, the height lower than the concrete liquid level is in the range of 1.5-1.8 m, and part of pumping kinetic energy is directly transferred to the lower concrete, so that the diffusivity of the upper section concrete is further enhanced.
10. The method for adjusting and controlling the burial depth of the self-adaptive guide pipe for pouring construction of the underground diaphragm wall according to claim 8, which is characterized by comprising the following method steps: The method comprises the steps of setting the design height of the underground diaphragm wall to be H, setting the distance between the concrete liquid surface and the design top surface of the underground diaphragm wall to be L, when the distance between the concrete liquid surface and the design top surface of the underground diaphragm wall is more than or equal to 120m, dividing the casting process into three stages according to the distance between the concrete liquid surface and the design top surface of the underground diaphragm wall, wherein the initial casting stage corresponds to 2/3H < L < H, the middle casting stage corresponds to 1/3H < L < 2/3H, the later casting stage corresponds to 0< L < 1/3H, the height range setting value of the conduit embedded depth range setting value and the height range setting value of the outlet end of the pump pipe relative to the concrete liquid surface are adjusted according to different stages, and the conduit embedded depth control module and the pump pipe control module correspondingly output signals to the pump pipe lifting device and the conduit lifting device according to information detected by the monitoring module, so that the distance between the outlet end of the pump pipe and the concrete liquid surface and the conduit embedded depth setting value of each stage are maintained within the corresponding set value ranges, and the distance range setting value between the outlet end of the conduit embedded depth of the conduit of the pump pipe and the concrete liquid surface of each stage is adjusted according to the following method: and (3) an initial pouring stage: the set value of the burial depth of the guide pipe is 2.0-3.0 m, and the set value of the height range of the outlet end of the pump pipe relative to the concrete liquid level is 1.0-1.5 m; The middle pouring stage, namely adjusting a set value of a conduit burial depth range to 2.0-2.5 m, and adjusting a set value of a height range of an outlet end of a pump pipe relative to a concrete liquid level to 1.0-1.5 m; The post pouring stage is to gradually adjust the set value of the burial depth range of the guide pipe to 2.0-2.5 m to 2.0-3.0 m; When the concrete liquid level is smaller than or equal to 30m from the designed top surface of the underground diaphragm wall, the height of the pump pipe is adjusted by adopting the following two modes: in the first mode, the height of a pump pipe is lifted, and the height range of the outlet end of the pump pipe relative to the concrete liquid level is set to be 1.5-1.8 m; In the second mode, the set value range of the distance between the outlet end of the pump pipe and the concrete liquid level is adjusted from a positive value to a negative value, and the set value of the height range of the outlet end of the pump pipe relative to the concrete liquid level is adjusted to be-1.5 m to-0.5 m.

Description

Self-adaptive conduit burial depth regulation and control system and method for underground continuous wall pouring construction Technical Field The invention relates to the technical field of building construction, in particular to a self-adaptive conduit burial depth regulation and control system and method for underground continuous wall casting construction. Background At present, the underground diaphragm wall is widely applied to the fields of urban underground engineering, hydraulic engineering and the like, and plays a vital role in water conservancy, environmental protection and urban infrastructure construction as an important seepage-proofing structure. The water conservancy impervious wall is generally used for preventing underground water from leaking, guaranteeing water source safety and surrounding environment stability, and is widely applied to projects such as dams, embankments, underground water level control, reservoirs and the like. However, due to the complexity of the construction environment and the high requirement on the seepage-proofing effect, the construction quality of the water conservancy seepage-proofing wall directly influences the seepage-proofing effect and long-term safety of engineering. The traditional underground diaphragm wall pouring technology generally adopts a mode of lifting a crane together with a guide pipe section by section, but the method has obvious defects in water conservancy impervious wall construction. In order to reduce the pipe lifting frequency, workers often keep larger burial depth (usually more than 10 m), so that the problems of insufficient concrete fluidity, segregation, slurry mixing, pipe blocking and the like are caused, and the seepage prevention effect and the overall structural quality of the wall are further affected. Especially in the deep water conservancy diaphragm wall of burying, in the great pouring process of degree of depth, the change of pouring concrete from the flow state to plastic state makes the concrete of watering earlier solidify in advance at the top, and resistance is big when later pouring concrete jack-up, and the uneven of in-process concrete makes pouring quality difficult to control, probably leads to the barrier performance to drop, causes even serious problems such as leaking, wall body crack. In addition, the existing construction mode relies on manual operation, so that the control of the depth of the buried pipe is inaccurate. The workers often reduce the pipe lifting frequency because of complex operation or trouble-saving drawings, and the irregular manual operation further increases the construction complexity and risk, reduces the construction efficiency and increases the labor intensity and the potential safety hazard of the workers. Therefore, in the construction of water conservancy impervious walls and other underground structures, how to accurately control the burial depth of the guide pipe, ensure the uniform pouring of concrete, avoid the problems of segregation, uneven pushing and the like in the traditional method, and become the technical problem to be solved in the industry. The invention provides a self-adaptive conduit buried depth regulating and controlling system and method for casting construction of ultra-deep underground continuous wall, which aim to regulate conduit buried depth through pump pipe lifting and real-time control, optimize concrete casting process, ensure construction quality of water conservancy impervious wall and other underground engineering structures, reduce manual operation defects, improve construction efficiency and safety, and have wide application prospect. Disclosure of Invention The invention provides a self-adaptive conduit burial depth regulating and controlling system and a method for underground diaphragm wall pouring construction, which aim to solve the technical problems in the prior art. The invention adopts the technical proposal for solving the technical problems in the prior art that: the system comprises a concrete pump truck, a conduit lifting device, a monitoring module and a conduit burial depth control module; The pipe lifting device is used for lifting the pipe, and is arranged on the pouring construction platform; the concrete pump truck is used for conveying concrete, a concrete pump, a pump pipe lifting device and a pump pipe control module are arranged on the concrete pump truck, the concrete pump is used for continuously conveying the concrete along a pipeline by utilizing pressure, the pump pipe is used for conveying the concrete from the concrete pump truck to a pouring position, and the output end of the pump pipe is inserted into a guide pipe; The monitoring module is used for monitoring and collecting state data related to the depth of the pump pipe inserted into the guide pipe, the elevation of the concrete liquid level and the burial depth parameter of the guide pipe in real time; The conduit burial depth control module receives the