CN112482448A - Foundation pit hydraulic support monitoring mechanism - Google Patents
Foundation pit hydraulic support monitoring mechanism Download PDFInfo
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- CN112482448A CN112482448A CN202011293928.5A CN202011293928A CN112482448A CN 112482448 A CN112482448 A CN 112482448A CN 202011293928 A CN202011293928 A CN 202011293928A CN 112482448 A CN112482448 A CN 112482448A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
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Abstract
The invention provides a foundation pit hydraulic support monitoring mechanism, which comprises: two support seats; a cross-shaped hydraulic supporting device is connected between the two supporting seats; the cross hydraulic support device is provided with four telescopic support rods; a pressure sensor is arranged on the telescopic supporting rod; the microcontroller controls each telescopic supporting rod to extend and retract through the extension driving module; when the support base is overloaded by the lateral pressure of the foundation pit, the pressure sensor can sense the lateral pressure, and transmits a signal to the pressure alarm display module through a wire, and the support base is acted by extending the control supporting rod of the driving module to support the support base, so that the support base is supported to prevent the collapse of the support base, and the collapse accident can be effectively prevented. When carrying out excavation supporting, the strong point is comparatively dispersed, and is effectual to the support of a support seat, does not contact with ground, and it has effectively solved current supporting construction and has all supported on ground and a support seat through the bracing piece that the slope was placed, and the problem that the supporting effect is poor.
Description
Technical Field
The invention relates to the technical field of foundation pit supporting, in particular to a hydraulic supporting monitoring mechanism for a foundation pit.
Background
In recent years, with the development of power grid construction, power transmission and transformation projects are increasing. In the process of tower foundation construction, foundation pit supporting is a very important and very common technology, can ensure orderly promotion of engineering, has a very prominent meaning, and is related to the final durability and safety of the engineering. The foundation pit supporting structure has various forms, and the foundation pit supporting structure has the function of preventing underground water and soil outside the foundation pit from flowing into the foundation pit. As shown in fig. 1, the supporting structure of the foundation pit is inserted into the bottom of the foundation pit and tightly supports the side wall of the foundation pit through the supporting plate, and then tightly supports the supporting plate through the inclined strut sinking into the bottom of the foundation pit, the supporting structure needs to ensure that the supporting plate is stably inserted into the bottom of the foundation pit to resist the upward acting force attached to the supporting plate by the inclined strut, and the supporting plate is prevented from being jacked away from the bottom of the foundation pit, so that the supporting plate needs to be inserted into a large depth when the supporting structure is installed, the operation is complex, the cost is high, and the pressure monitoring.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a monitoring mechanism for a hydraulic support of a foundation pit, which comprises: two support seats; a cross-shaped hydraulic supporting device is connected between the two supporting seats;
the cross hydraulic support device is provided with four telescopic support rods;
every two telescopic supporting rods are arranged on the same straight line;
one end of the telescopic supporting rod is rotatably connected with the connecting position of the supporting seat;
the other end of the telescopic supporting rod is connected with a supporting control box;
a microcontroller, an extension driving module and a pressure alarm display module are arranged in the support control box;
a pressure sensor is arranged on the telescopic supporting rod;
the microcontroller controls each telescopic supporting rod to extend and retract through the extension driving module;
the microcontroller acquires foundation pit side slope pressure through connecting pressure sensor, and when the pressure of acquireing surpassed the threshold value, increase holding power through stretching scalable bracing piece of drive module control, the suggestion of reporting to the police is carried out through pressure warning display module simultaneously.
It should be further noted that a signal processing circuit is also arranged inside the supporting control box;
the pressure sensor is connected with the microcontroller through a signal processing circuit;
the signal processing circuit includes: the circuit comprises a first operational amplifier circuit A1, a second operational amplifier circuit A2, a third operational amplifier circuit A3, a fourth operational amplifier circuit A4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D1 and a diode D2;
the positive electrode connecting end of the first operational amplifier circuit A1 is connected with a pressure sensor; the negative electrode connecting end of the first operational amplifier circuit A1 is respectively connected with the output end of the first operational amplifier circuit A1 and the first end of the resistor R1; the second end of the resistor R1 is respectively connected with the first end of the capacitor C1, the first end of the resistor R3 and the negative electrode connecting end of the second operational amplifier circuit A2;
the positive connecting end of the second operational amplifier circuit A2 is connected with the first end of the resistor R2; the second end of the resistor R2, the anode of the diode D1, the cathode of the diode D2, the second end of the resistor R12, the second end of the resistor R13, the second end of the capacitor C5 and the second end of the capacitor C6 are grounded respectively;
the second end of the capacitor C1, the second end of the resistor R3, the output end of the second operational amplifier circuit A2 and the first end of the resistor R4 are connected together; a second end of the resistor R4 is respectively connected with a cathode of the diode D1, an anode of the diode D2 and a first end of the resistor R5; the second end of the resistor R5 is respectively connected with the negative electrode connecting end of the third operational amplifier circuit A3, the first end of the capacitor C2 and the first end of the resistor R7;
the second end of the capacitor C2 is respectively connected with the second end of the resistor R8, the sliding end of the resistor R8, the first end of the resistor R9 and the output end of the third operational amplifier circuit A3; the second end of the resistor R7 is connected with the first end of the resistor R8;
a second end of the resistor R9 is respectively connected with a first end of the resistor R10 and a first end of the capacitor C3;
the second end of the resistor R10, the second end of the capacitor C3, the first end of the resistor R12, the first end of the resistor R13, the first end of the capacitor C5, the first end of the capacitor C6, the first end of the capacitor C4 and the first end of the resistor R11 are connected;
the second end of the capacitor C4 and the second end of the resistor R11 are respectively connected with the positive electrode connecting end of the fourth operational amplifier circuit A4;
and the negative electrode connecting end of the fourth operational amplifier circuit A4 is respectively connected with the output end of the fourth operational amplifier circuit A4 and the output end of the signal processing circuit.
It is further noted that the telescopic support rod is provided with a fixed section and a telescopic section;
the first end of the fixed section is fixedly connected with the shell of the support control box;
a cavity is arranged in the fixed section, a cavity opening is arranged at the second end of the fixed section, and the first end of the telescopic section extends into the cavity of the fixed section through the cavity opening;
the second end of the telescopic section is rotatably connected with the connecting position of the supporting seat.
It should be further noted that hydraulic drive is adopted between the fixed section and the telescopic section to realize the telescopic section to be telescopic in the cavity of the fixed section; the stretching driving module adopts a hydraulic driving device.
It is further noted that the inner wall of the cavity of the fixed section is provided with internal threads;
the outer surface of the telescopic section is provided with external threads; the external thread of the telescopic section is matched with the internal thread of the inner wall of the cavity through threads;
the stretching driving module adopts a servo motor to drive the fixed section to rotate.
It should be further noted that a step is arranged at the second end of the telescopic section, and a first through hole is arranged on the step;
a connecting plate is arranged at the connecting position of the support seat, and is provided with a second through hole;
the first through hole and the second through hole are connected in a matched mode through bolts or rivets.
It should be further noted that the support base is provided with two connecting positions; the two connecting positions are respectively and correspondingly arranged at the two ends of the supporting seat.
It should be further noted that the box body for supporting the control box is disc-shaped; the pressure alarm display module is arranged at the upper end of the support control box;
the pressure alarm display module adopts an LED lamp to display and alarms through a buzzer;
or a digital display screen is adopted for display.
It should be further noted that a power supply battery, a power supply circuit, a charging interface and a charging circuit are also arranged in the support control box;
the power supply battery is used for supplying power to the electric elements in the mechanism by connecting the power supply circuit;
the power supply battery is connected with an external power supply through the charging circuit and the charging interface in sequence for charging.
It should be further noted that a wireless communication module is also arranged inside the supporting control box; a control key is arranged on the support control box body;
the microcontroller is communicated with the upper computer by connecting the wireless communication module;
the microcontroller acquires a control instruction input by a user through connection with the control key.
According to the technical scheme, the invention has the following advantages:
when the supporting seat is overloaded by the lateral pressure of the foundation pit, the pressure sensor senses the pressure sensor and transmits a signal to the pressure alarm display module through a lead, and the stretching driving module controls the supporting rod to stretch to act on the supporting seat, so that the supporting seat is propped against to prevent the supporting seat from collapsing, and collapse accidents can be effectively prevented.
The supporting rod of the hydraulic supporting and monitoring mechanism for the foundation pit is connected with the supporting seat through the bolt, and the supporting rod can extend and compress and is convenient to construct and disassemble.
When carrying out excavation supporting, the strong point is comparatively dispersed, and is effectual to the support of a support seat, and adjusts the seat and pass through the bracing piece and connect two support seats simultaneously, does not contact with ground, and it has effectively solved current supporting construction and has all supported on ground and a support seat through the bracing piece that the slope was placed, problem that the supporting effect is poor.
The foundation pit hydraulic support monitoring mechanism provided by the invention is light, flexible and convenient, occupies small space, and can effectively increase the operation area of the foundation pit.
Compared with the supporting of cement brick walls and retaining cast-in-place piles, the hydraulic supporting and monitoring mechanism for the foundation pit provided by the invention can be recycled, is beneficial to shortening the construction period, saving materials and improving the working efficiency.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a prior art schematic;
FIG. 2 is a schematic view of a hydraulic support monitoring mechanism of a foundation pit;
FIG. 3 is a top view of a hydraulic support monitoring mechanism for a foundation pit;
FIG. 4 is a schematic view of a cross-shaped hydraulic support device;
FIG. 5 is a schematic view of an embodiment of a hydraulic support monitoring mechanism of a foundation pit;
fig. 6 is a signal processing circuit diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a foundation pit hydraulic support monitoring mechanism, as shown in figures 2 to 5, comprising: two support bases 1; a cross-shaped hydraulic supporting device 3 is connected between the two supporting seats 1;
the cross-shaped hydraulic supporting device 3 is provided with four telescopic supporting rods 4; every two telescopic supporting rods 4 are arranged on the same straight line; one end of the telescopic supporting rod 4 is rotatably connected with the connecting position 2 of the supporting seat 1; the other end of the telescopic supporting rod 4 is connected with a supporting control box 5; a microcontroller 11, an extension driving module 12 and a pressure alarm display module 6 are arranged in the support control box 5; the telescopic supporting rod 4 is provided with a pressure sensor 13; the microcontroller 11 controls each telescopic supporting rod 4 to extend and retract through the extension driving module 12;
microcontroller 11 acquires foundation ditch side slope lateral pressure through connecting pressure sensor 13, and when the pressure of acquireing exceeded the threshold value, through stretching drive module 12 control scalable bracing piece 4 and increase the holding power, reports to the police through pressure warning display module 6 simultaneously and indicates.
Aiming at the problems of the existing foundation pit supporting structure, the invention preferably utilizes the hydraulic principle, adopts the method of combining the cross hydraulic operation box and the four supporting rods, is connected with the supporting seats 1 at two sides and is not contacted with the ground, and effectively solves the problem that the existing supporting structure is supported on the ground through the obliquely arranged supporting rods, and the supporting effect is poor. Through installation pressure sensor 13 and alarm device in the bracing piece, realize the real-time supervision to foundation ditch side slope pressure to pressurize in real time, when exceeding the set pressure value, the alarm reports to the police, thereby effectively reduces the emergence of foundation ditch collapse accident.
The units and algorithm steps of each example described by the hydraulic support monitoring mechanism for the foundation pit provided by the invention can be realized by electronic hardware, computer software or a combination of the electronic hardware and the computer software, and in order to clearly illustrate the interchangeability of the hardware and the software, the components and the steps of each example are generally described according to functions in the above description. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The block diagram shown in the drawings of the invention providing a hydraulic support monitoring mechanism for a foundation pit is a functional entity only and does not necessarily correspond to a physically separate entity. That is, these functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or pico controller 11 devices.
As an embodiment provided by the present invention, the telescopic supporting rod 4 is provided with a fixed section 7 and a telescopic section 8; the first end of the fixed section 7 is fixedly connected with the shell of the support control box 5; a cavity is arranged in the fixed section 7, a cavity opening is arranged at the second end of the fixed section 7, and the first end of the telescopic section 8 extends into the cavity of the fixed section 7 through the cavity opening; the second end of the telescopic section 8 is rotatably connected with the connecting position 2 of the supporting seat 1.
For the telescopic mode between the fixed section 7 and the telescopic section 8, the telescopic section 8 can be driven by hydraulic pressure preferably, so that the telescopic section 8 can be stretched in the cavity of the fixed section 7; the extension driving module 12 adopts a hydraulic driving device.
For the telescopic mode between the fixed section 7 and the telescopic section 8, the other mode provided by the invention is that the inner wall of the cavity of the fixed section 7 is provided with internal threads; the outer surface of the telescopic section 8 is provided with external threads; the external thread of the telescopic section 8 is matched with the internal thread of the inner wall of the cavity through threads; the stretching driving module 12 adopts a servo motor to drive the fixed section 7 to rotate.
As an embodiment provided by the present invention, a step is provided at the second end of the telescopic section 8, and a first through hole is provided on the step; the connecting position 2 of the support seat 1 is provided with a connecting plate, and the connecting plate is provided with a second through hole; the first through hole and the second through hole are connected in a matched mode through bolts or rivets. Two connecting positions 2 are arranged on the supporting seat 1; the two connecting positions 2 are respectively and correspondingly arranged at two ends of the supporting seat 1.
It will be understood that when an element or layer is referred to as being "on" or "coupled to" another element or layer, it can be directly on or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The hydraulic support monitoring mechanism of the foundation pit provided by the invention uses relative terms of space such as "below …", "below", "lower", "above" and the like to describe the relationship of one element or feature to another element or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.
The term used by the foundation pit hydraulic support monitoring mechanism provided by the invention is only used for describing the specific embodiment and is not intended to limit the expression in the document. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Further, the invention provides a foundation pit hydraulic support monitoring mechanism, which relates to the following construction and site conditions: the method is suitable for the foundation pit support of the power transmission line engineering with a smaller foundation pit range, a narrower operation surface and an excavation depth within 5 m. The site conditions are that the underground water level is high, no important buildings or underground pipelines are arranged near the foundation pit, and the soil layer is soft soil, silt and mucky soil generally.
The foundation pit hydraulic support monitoring mechanism provided by the invention utilizes the hydraulic transmission principle to adjust the telescopic length of the telescopic support rod 4, and the telescopic support rod 4 is arranged in a cross structure. Support control box 5 through setting up can realize that a plurality of bracing pieces adjust simultaneously, and be the cross setting, when supporting, the strong point is dispersion relatively, and is good to the supporting effect of a support seat 1, connects two support seats 1 simultaneously through the bracing piece, does not contact with ground, and it has effectively solved current supporting construction and has all supported on ground and a support seat 1 through the bracing piece that the slope was placed, the poor problem of supporting effect.
In the drawings provided by the invention, the cross-shaped hydraulic support device 3 is a connecting part of four support rods, and power is transmitted through the pressure inside oil preferably by using the oil as a working medium based on the driving operation of the extension driving module 12. The basic principle is that the pressure inside the liquid is equal everywhere. The pressure is equal, and the larger the stressed area is, the larger the pressure is, the more effective the pressure can resist the side pressure of the foundation pit slope.
One end of each of the four support rods is connected with the supporting seat 1, one end of each of the four support rods is connected with the supporting control box 5, the support rods have flexibility, the length can be adjusted according to the size of a foundation pit, the support rods are crossed and connected to the upper end and the lower end of the supporting seat 1, supporting points are dispersed, and the supporting effect on the supporting seat 1 is good.
As an embodiment provided by the present invention, as shown in fig. 6, a signal processing circuit 14 is further disposed inside the supporting control box 5;
the pressure sensor 13 is connected with the microcontroller 11 through a signal processing circuit 14;
the signal processing circuit 14 includes: the circuit comprises a first operational amplifier circuit A1, a second operational amplifier circuit A2, a third operational amplifier circuit A3, a fourth operational amplifier circuit A4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D1 and a diode D2;
the positive electrode connecting end of the first operational amplifier circuit A1 is connected with the pressure sensor 13; the negative electrode connecting end of the first operational amplifier circuit A1 is respectively connected with the output end of the first operational amplifier circuit A1 and the first end of the resistor R1; the second end of the resistor R1 is respectively connected with the first end of the capacitor C1, the first end of the resistor R3 and the negative electrode connecting end of the second operational amplifier circuit A2; the positive connecting end of the second operational amplifier circuit A2 is connected with the first end of the resistor R2; the second end of the resistor R2, the anode of the diode D1, the cathode of the diode D2, the second end of the resistor R12, the second end of the resistor R13, the second end of the capacitor C5 and the second end of the capacitor C6 are grounded respectively; the second end of the capacitor C1, the second end of the resistor R3, the output end of the second operational amplifier circuit A2 and the first end of the resistor R4 are connected together; a second end of the resistor R4 is respectively connected with a cathode of the diode D1, an anode of the diode D2 and a first end of the resistor R5; the second end of the resistor R5 is respectively connected with the negative electrode connecting end of the third operational amplifier circuit A3, the first end of the capacitor C2 and the first end of the resistor R7; the second end of the capacitor C2 is respectively connected with the second end of the resistor R8, the sliding end of the resistor R8, the first end of the resistor R9 and the output end of the third operational amplifier circuit A3; the second end of the resistor R7 is connected with the first end of the resistor R8; a second end of the resistor R9 is respectively connected with a first end of the resistor R10 and a first end of the capacitor C3; the second end of the resistor R10, the second end of the capacitor C3, the first end of the resistor R12, the first end of the resistor R13, the first end of the capacitor C5, the first end of the capacitor C6, the first end of the capacitor C4 and the first end of the resistor R11 are connected; the second end of the capacitor C4 and the second end of the resistor R11 are respectively connected with the positive electrode connecting end of the fourth operational amplifier circuit A4; the negative electrode connecting end of the fourth operational amplifier circuit a4 is respectively connected with the output end of the fourth operational amplifier circuit a4 and the output end of the signal processing circuit 14.
The pressure sensor 13 converts the collected pressure signal into a voltage signal V0, and transmits the voltage signal to the signal processing circuit 14. The signal processing circuit 14 involves a signal amplification unit and a signal filtering unit, and transmits the processed signal V1 to the microcontroller 11. The microcontroller 11 processes the pressure data. When pressure data reaches a certain value, can withstand supporting seat 1 through the holding power that increases scalable bracing piece 4 and prevent it from collapsing, can effectively prevent the emergence of the accident of collapsing. And if the pressure data exceeds the supporting force, alarming is carried out, and constructors are prompted to carry out treatment in time, so that collapse accidents are prevented.
The microcontroller 11 may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, the microcontroller 11, the pico controller 11, a microprocessor, and an electronic unit designed to perform the functions described herein, and in some cases, such an implementation may be implemented in the microcontroller 11. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software code may be embodied by a software application (or program) written in any suitable programming language, which may be stored in memory and executed by the microcontroller 11.
The pressure alarm Display module 6 may include at least one of a Liquid Crystal Display (LCD), a Thin Film Transistor LCD (TFT-LCD), an Organic Light-Emitting Diode (OLED) Display, a flexible Display, a three-dimensional (3D) Display, and the like.
As an embodiment provided by the present invention, the box body supporting the control box 5 is disc-shaped; the pressure alarm display module 6 is arranged at the upper end of the support control box 5; the pressure alarm display module 6 adopts an LED lamp to display and alarms through a buzzer; or a digital display screen is adopted for display.
A power supply battery 17, a power supply circuit, a charging interface and a charging circuit are also arranged in the support control box 5; the power supply battery 17 is used for supplying power to the internal electrical elements of the mechanism by connecting a power supply circuit; the power supply battery 17 is connected with an external power supply for charging through the charging circuit and the charging interface in sequence.
The inside of the supporting control box 5 is also provided with a wireless communication module 15; a control key 16 is arranged on the support control box 5; the microcontroller 11 is communicated with an upper computer by connecting a wireless communication module 15; the microcontroller 11 obtains the control instruction input by the user through connection with the control key 16.
According to the foundation pit hydraulic support monitoring mechanism provided by the invention, the pressure monitoring sensor can be arranged at the top of the supporting rod to monitor the lateral pressure of the foundation pit, so that the safety of the foundation pit support can be effectively reflected.
The signal processing circuit 14 greatly improves the monitoring accuracy of the base slope side pressure.
When large load change (large vehicles pass through) occurs around the foundation pit and the bearing capacity of the supporting structure is exceeded, an alarm can be sent out immediately, and collapse accidents are avoided.
The foundation pit hydraulic support monitoring mechanism provided by the invention is an effective supplement to foundation pit design and practical work. On the basis of practical research and effective analysis, the traditional inclined support is supported by the aid of the cross-shaped steel pipe rod, interaction forces on two sides of the foundation pit are utilized for supporting, and the inclined support is firm, stable and easy to operate.
The foundation pit hydraulic support monitoring mechanism provided by the invention realizes the telescopic function of the supporting rod by utilizing the hydraulic transmission principle or other modes, can enable the supporting device to adapt to foundation pits with different sizes, realizes cyclic utilization, and thus saves materials and reduces cost.
Through set up pressure sensor 13 at the bracing piece top, realize the real-time supervision to foundation ditch lateral pressure to link to each other with alarm device, when foundation ditch lateral pressure transships, in time start the warning, prevent the emergence of the accident of collapsing.
The foundation pit hydraulic support monitoring mechanism transmits an overloaded pressure signal to the microcontroller 11 based on signal transmission and signal processing, and then starts the extension driving module 12, so that the supporting rod extends, a reverse acting force is provided for the support steel plate in time, and the stability of a foundation pit side slope is maintained.
As will be appreciated by one skilled in the art, various aspects of the hydraulic support monitoring mechanism for a foundation pit provided by the present invention may be embodied as a system, method or program product. Accordingly, various aspects of the present disclosure may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a foundation ditch hydraulic support monitoring devices, its characterized in that includes: two support seats; a cross-shaped hydraulic supporting device is connected between the two supporting seats;
the cross hydraulic support device is provided with four telescopic support rods;
every two telescopic supporting rods are arranged on the same straight line;
one end of the telescopic supporting rod is rotatably connected with the connecting position of the supporting seat;
the other end of the telescopic supporting rod is connected with a supporting control box;
a microcontroller, an extension driving module and a pressure alarm display module are arranged in the support control box;
a pressure sensor is arranged on the telescopic supporting rod;
the microcontroller controls each telescopic supporting rod to extend and retract through the extension driving module;
the microcontroller acquires foundation pit side slope pressure through connecting pressure sensor, and when the pressure of acquireing surpassed the threshold value, increase holding power through stretching scalable bracing piece of drive module control, the suggestion of reporting to the police is carried out through pressure warning display module simultaneously.
2. The foundation pit hydraulic support monitoring mechanism of claim 1,
a signal processing circuit is also arranged in the supporting control box;
the pressure sensor is connected with the microcontroller through a signal processing circuit;
the signal processing circuit includes: the circuit comprises a first operational amplifier circuit A1, a second operational amplifier circuit A2, a third operational amplifier circuit A3, a fourth operational amplifier circuit A4, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a diode D1 and a diode D2;
the positive electrode connecting end of the first operational amplifier circuit A1 is connected with a pressure sensor; the negative electrode connecting end of the first operational amplifier circuit A1 is respectively connected with the output end of the first operational amplifier circuit A1 and the first end of the resistor R1; the second end of the resistor R1 is respectively connected with the first end of the capacitor C1, the first end of the resistor R3 and the negative electrode connecting end of the second operational amplifier circuit A2;
the positive connecting end of the second operational amplifier circuit A2 is connected with the first end of the resistor R2; the second end of the resistor R2, the anode of the diode D1, the cathode of the diode D2, the second end of the resistor R12, the second end of the resistor R13, the second end of the capacitor C5 and the second end of the capacitor C6 are grounded respectively;
the second end of the capacitor C1, the second end of the resistor R3, the output end of the second operational amplifier circuit A2 and the first end of the resistor R4 are connected together; a second end of the resistor R4 is respectively connected with a cathode of the diode D1, an anode of the diode D2 and a first end of the resistor R5; the second end of the resistor R5 is respectively connected with the negative electrode connecting end of the third operational amplifier circuit A3, the first end of the capacitor C2 and the first end of the resistor R7;
the second end of the capacitor C2 is respectively connected with the second end of the resistor R8, the sliding end of the resistor R8, the first end of the resistor R9 and the output end of the third operational amplifier circuit A3; the second end of the resistor R7 is connected with the first end of the resistor R8;
a second end of the resistor R9 is respectively connected with a first end of the resistor R10 and a first end of the capacitor C3;
the second end of the resistor R10, the second end of the capacitor C3, the first end of the resistor R12, the first end of the resistor R13, the first end of the capacitor C5, the first end of the capacitor C6, the first end of the capacitor C4 and the first end of the resistor R11 are connected;
the second end of the capacitor C4 and the second end of the resistor R11 are respectively connected with the positive electrode connecting end of the fourth operational amplifier circuit A4;
and the negative electrode connecting end of the fourth operational amplifier circuit A4 is respectively connected with the output end of the fourth operational amplifier circuit A4 and the output end of the signal processing circuit.
3. The foundation pit hydraulic support monitoring mechanism of claim 1,
the telescopic supporting rod is provided with a fixed section and a telescopic section;
the first end of the fixed section is fixedly connected with the shell of the support control box;
a cavity is arranged in the fixed section, a cavity opening is arranged at the second end of the fixed section, and the first end of the telescopic section extends into the cavity of the fixed section through the cavity opening;
the second end of the telescopic section is rotatably connected with the connecting position of the supporting seat.
4. The foundation pit hydraulic support monitoring mechanism of claim 3,
the fixed section and the telescopic section are driven by hydraulic pressure, so that the telescopic section is telescopic in the cavity of the fixed section; the stretching driving module adopts a hydraulic driving device.
5. The foundation pit hydraulic support monitoring mechanism of claim 3,
the inner wall of the cavity of the fixed section is provided with internal threads;
the outer surface of the telescopic section is provided with external threads; the external thread of the telescopic section is matched with the internal thread of the inner wall of the cavity through threads;
the stretching driving module adopts a servo motor to drive the fixed section to rotate.
6. The foundation pit hydraulic support monitoring mechanism of claim 3,
the second end of the telescopic section is provided with a step, and a first through hole is formed in the step;
a connecting plate is arranged at the connecting position of the support seat, and is provided with a second through hole;
the first through hole and the second through hole are connected in a matched mode through bolts or rivets.
7. The foundation pit hydraulic support monitoring mechanism of claim 3,
two connecting positions are arranged on the supporting seat; the two connecting positions are respectively and correspondingly arranged at the two ends of the supporting seat.
8. The foundation pit hydraulic support monitoring mechanism of claim 1,
the box body for supporting the control box is in a disc shape; the pressure alarm display module is arranged at the upper end of the support control box;
the pressure alarm display module adopts an LED lamp to display and alarms through a buzzer;
or a digital display screen is adopted for display.
9. The foundation pit hydraulic support monitoring mechanism of claim 1,
a power supply battery, a power supply circuit, a charging interface and a charging circuit are also arranged in the support control box;
the power supply battery is used for supplying power to the electric elements in the mechanism by connecting the power supply circuit;
the power supply battery is connected with an external power supply through the charging circuit and the charging interface in sequence for charging.
10. The foundation pit hydraulic support monitoring mechanism of claim 1,
the inside of the supporting control box is also provided with a wireless communication module; a control key is arranged on the support control box body;
the microcontroller is communicated with the upper computer by connecting the wireless communication module;
the microcontroller acquires a control instruction input by a user through connection with the control key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293928.5A CN112482448A (en) | 2020-11-18 | 2020-11-18 | Foundation pit hydraulic support monitoring mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293928.5A CN112482448A (en) | 2020-11-18 | 2020-11-18 | Foundation pit hydraulic support monitoring mechanism |
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| CN112482448A true CN112482448A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011293928.5A Pending CN112482448A (en) | 2020-11-18 | 2020-11-18 | Foundation pit hydraulic support monitoring mechanism |
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| CN (1) | CN112482448A (en) |
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| CN113482010A (en) * | 2021-08-14 | 2021-10-08 | 江苏宏顺环保科技有限公司 | Deep foundation pit supporting device with alarming function in abnormal state |
| CN113775532A (en) * | 2021-11-11 | 2021-12-10 | 济南英华自动化技术有限公司 | Distributed cable channel on-line monitoring system |
| CN114319374A (en) * | 2021-12-21 | 2022-04-12 | 海南大学 | Early warning automatic reaction's waterproof supporting construction of deep basal pit |
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