Double-continuous-beam reinforced foundation for power transmission line tower with inclination monitoring function

Abstract

The application provides a double-continuous-beam reinforcing foundation for a power transmission tower with an inclination monitoring function, relates to the technical field of power transmission tower reinforcing foundations, and comprises four embedded bases arranged in a rectangular array, a lower base column installed on the top of each embedded base, and an upper base column installed on the top of the lower base column, an outer hoop plate is installed on the lower outer side of each lower base column and the upper outer side of the upper base column, a lower continuous-beam mechanism is installed between the four lower base columns, an upper continuous-beam mechanism is installed between the four upper base columns, and a reinforcing mechanism is installed at the center of the four embedded bases; an adjusting mechanism is installed inside the lower base column; the application connects the four foundations that are independently distributed in the traditional way into a whole cooperative working system through the combination of the embedded base, the lower base column, the upper base column, the lower continuous-beam mechanism and the upper continuous-beam mechanism; stress sharing and dynamic compensation are achieved, and the inclination risk caused by the uneven settlement of the surface of a mined-out area is effectively resisted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power transmission tower foundation reinforcement, and particularly relates to a double-continuous-beam foundation for a power transmission line tower with an inclination monitoring function. BACKGROUND

[0002] With the extension of the power transmission network in China to remote mountainous areas, mined-out areas and other complex geological regions, the geological disasters (such as mined-out area subsidence, soft soil foundation settlement) and extreme weather (strong wind, blizzard, earthquake) threatening the power transmission line towers are becoming increasingly serious. As the core bearing body of the power transmission line, the stability of the tower foundation directly affects the safe operation of the power grid. However, the traditional independent foundation design has inherent defects such as weak cooperative work ability, poor geological adaptability, and lagging monitoring and adjustment, and has been difficult to meet the high reliability power transmission demand. Moreover, the power transmission line towers are inevitably built above mined-out areas, and coal mining will cause uneven subsidence of the upper ground, and uneven subsidence and cracks can be seen everywhere, which has a great impact on the safety of the power transmission line tower foundation, such as the distortion of the power transmission line tower, the settlement of the foundation, the translation of the position, the change of the sag, and various conditions. In order to eliminate the safety hazards of the power transmission line above the mined-out area and ensure the normal mining of coal and the safe operation of the line, it is necessary to reform the power transmission line and the power transmission line tower foundation affected by coal mining under the premise of considering economy.

[0003] The traditional power transmission line tower mostly adopts independent foundation design, and the four foundation units are separated from each other, lacking effective connection and cooperation mechanism. When encountering geological disasters such as uneven subsidence of the ground surface in the mined-out area and stratum slip, the independent foundation cannot realize stress sharing and dynamic compensation, and is easy to cause the overall tilt of the tower or even collapse due to local settlement difference. At the same time, the continuous beam structure of rigid connection is easy to produce stress concentration when deforming, causing node fracture or component damage, and the anti-deformation ability is weak. Moreover, under special geological conditions such as mined-out area and soft soil foundation, the traditional foundation has small bottom area and single load transfer path, which is easy to cause the unit area pressure of the foundation to exceed the standard, causing bearing failure. For extreme loads such as earthquake, strong wind and icing, the anti-pulling, wind-resistant and anti-seismic performance of the independent foundation depends on single components (such as independent foundation bolts), lacks multi-dimensional load dispersion system, and often causes overall instability due to overload of a certain foundation. In addition, the traditional foundation cannot dynamically adjust the support force according to the real-time deformation of the soil, and has insufficient pre-control ability for geological disasters. Moreover, the monitoring of the existing tower foundation relies on artificial regular inspection (such as total station instrument measurement of inclination), lacks real-time dynamic monitoring means, and is difficult to capture the trend of small deformation and give early warning. The existing tower foundation height adjustment is mostly fixed by one-time pouring of concrete at the construction stage, and if the ground surface subsidence or pouring error occurs later, the foundation height difference cannot be accurately calibrated, which causes structural overload and long-term operation safety hazards. Therefore, it is urgent to develop a tower foundation that can solve the above technical problems. SUMMARY

[0004] To solve the above technical problems, the application provides a double-continuous beam reinforced foundation for a power transmission line tower with inclination monitoring function.

[0005] The technical scheme adopted by the application is as follows: a double-continuous beam reinforced foundation for a power transmission line tower with inclination monitoring function, comprising four embedded bases arranged in a rectangular matrix, a lower foundation column mounted on the top of each embedded base, and an upper foundation column vertically mounted on the top of the lower foundation column, a base plate for fixed connection with the power transmission line tower being mounted on the top of the upper foundation column, a hoop plate structure being mounted on the lower part of each lower foundation column and the upper part of the upper foundation column, a lower continuous beam mechanism being mounted between the hoop plate structures of the four lower foundation columns, an upper continuous beam mechanism being mounted between the hoop plate structures of the four upper foundation columns, a reinforcing mechanism cooperating with the lower continuous beam mechanism and the upper continuous beam mechanism being mounted at the central position between the four embedded bases, and a positioning monitoring assembly for improving the continuous beam support force and monitoring soil movement being mounted between the diagonally arranged lower continuous beam mechanism and the upper continuous beam mechanism.

[0006] Inclination monitoring sensors are mounted on the front end faces of the four upper foundation columns.

[0007] The positioning monitoring assembly comprises a support seat fixedly sleeved on the lower continuous beam mechanism and the upper continuous beam mechanism, a threaded tube fixed between the upper and lower support seats, and a bidirectional screw rod rotationally connected between the two threaded tubes, a limiting bolt being rotationally connected to one side face of the support seat; a fixing ring is fixedly sleeved to the middle part of the bidirectional screw rod, at least one horizontal turning handle rod being fixedly connected to the circumferential side of the fixing ring, at least two stop rods being vertically fixed to the top face and the bottom face of the turning handle rod, a deflection plate for monitoring soil settlement displacement being movably hinged between the two stop rods through a pin shaft, a plurality of grab soil grooves arranged in an up-down staggered manner being equidistantly formed in the two side faces of the deflection plate, and a passive acoustic sensor being embeddedly mounted on one side of the grab soil groove.

[0008] Further, an adjusting mechanism for adjusting the height of the upper foundation column is mounted in the lower foundation column.

[0009] Further, the hoop plate structure comprises an outer hoop plate and an inner hoop plate, the outer hoop plate being mounted on the outer side of the lower part of each lower foundation column and the outer side of the upper part of the upper foundation column, and the inner hoop plate being mounted on the inner side of the lower part of each lower foundation column and the inner side of the upper part of the upper foundation column, the two ends of the outer hoop plate and the inner hoop plate being fixedly connected by a plurality of bolts.

[0010] Further, the outer hoop plate and the inner hoop plate are both L-shaped plate structures, and an anti-skid groove is formed in the inner side face of each of the outer hoop plate and the inner hoop plate, and an anti-skid plate is padded in the anti-skid groove.

[0011] Further, the lower diaphragm mechanism and the upper diaphragm mechanism each comprise a connecting plate welded on the outer side of the inner hoop plate, two lateral connecting seats mounted on the outer side of the connecting plate by bolts, and a lateral connecting pipe mounted on the connecting plate; the top surface and the bottom surface of the connecting plate are each welded with a reinforcing plate; a diagonal connecting seat is further mounted on the connecting plate between the two lateral connecting seats, the outer end of the diagonal connecting seat is connected with a diagonal connecting pipe through a flange plate, and the inner ends of the two lateral connecting pipes in the same axial direction are connected and fixed through a reinforcing flange plate; a positioning and monitoring assembly for improving the diaphragm support force and monitoring the movement of the soil body is mounted between the diagonal connecting pipes in the lower diaphragm mechanism and the upper diaphragm mechanism.

[0012] Further, the reinforcing mechanism comprises two center seats arranged in parallel in the upper and lower directions, a plurality of locking telescopic support columns mounted on the circumferential side between the two center seats, and reinforcing flange plates welded at the four corners of the center seats; the inner ends of the diagonal connecting pipes are connected and fixed with the reinforcing flange plates on the center seats through bolts.

[0013] Further, the adjusting mechanism comprises a screw rod rotatably arranged in the middle part of the inner bottom surface of the lower base column, a reinforcing column vertically inserted into the rectangular port of the lower base column, and an inner hexagonal groove opened in the top end surface of the screw rod; the upper part of the reinforcing column is fixedly connected with the inner wall of the upper base column, and a threaded hole cooperating with the screw rod is vertically and penetratingly formed in the middle part of the reinforcing column; the middle part of the top surface of the base plate is provided with an operating port for rotating the screw rod.

[0014] Further, a positioning sleeve is sleeved between the upper part of the lower base column and the lower part of the upper base column, positioning bolts are mounted on the upper and lower ends of the outer side of the positioning sleeve, a plurality of positioning holes cooperating with the positioning bolts are equidistantly formed on the circumferential side of the upper part of the lower base column and the circumferential side of the lower part of the upper base column, and the inner ends of the positioning bolts are connected in the corresponding positioning holes.

[0015] Further, a hoop-type anti-seismic plate is mounted between the lower base column and the embedded base, and a “J”-shaped anti-pulling hook is mounted at the bottom of each of the four corners of the embedded base.

[0016] Further, a buffer groove is formed in the top part of the front end surface of the upper base column, a buffer plate is slidably mounted in the buffer groove, an inclination monitoring sensor is mounted on the front end surface of the buffer plate, one end of a buffer spring is fixedly connected with the four corners of the inner side surface of the buffer plate, and the other end of the buffer spring is fixedly connected with the inner side wall of the buffer groove; a power supply module for electrically connecting with the inclination monitoring sensor is mounted at the rear end in the buffer groove.

[0017] The present application has the following beneficial effects compared with the prior art:

[0018] 1. Through the combination of pre-buried foundations, lower and upper base columns, and lower and upper connecting beams, the four traditionally independent foundations are connected into a coordinated, integrated system. Compared to a single independent foundation, the connecting beam structure allows for stress sharing and dynamic compensation among the foundations. This significantly increases the amount of soil that can be carried by the tower foundation, significantly improving overall stability and effectively combating the risk of tilting caused by uneven surface settlement in the goaf. The double connecting beam structure, composed of various components, enhances overall deformation resistance. The L-shaped outer and inner hoop plates are bolted together, and combined with anti-slip plates (wooden boards) to enhance fit and stability, forming a flexible constraint structure. When local foundations shift due to settlement, the connecting beam mechanism can fine-tune their height by adjusting the tightness of the bolts, allowing the foundations to deform collaboratively within a certain range and avoiding stress concentration caused by rigid connections.

[0019] 2. This application can improve the adaptability and load dispersion capability under complex geological conditions, and is convenient for dealing with problems such as deformation and collapse of strata in goaf areas. The double-beam reinforced foundation transfers the load evenly by expanding the bottom area (distributed in a rectangular array of multiple bases), reduces the pressure per unit area of ​​the foundation, and improves the bearing capacity. At the same time, the reinforcement mechanism (center seat and locking telescopic support column) can dynamically adjust the support force according to the displacement of the soil, forming a three-level anti-deformation mechanism of "dispersion-transmission-compensation", reducing the additional stress on the tower caused by geological disasters. At the same time, it can play a role in resisting extreme loads and can cope with natural disasters such as strong winds, ice and snow. The collaborative working characteristics of the double-beam structure enable each foundation to share the load and avoid overloading of a single foundation. For example, the side connecting pipes and diagonal connecting pipes form a rigid frame through flanges and stiffened plates, which enhances the horizontal wind resistance. The pull-out hooks and seismic plates improve the pull-out and seismic resistance of the foundation, ensuring the safe operation of the transmission line under extreme conditions.

[0020] 3. This application facilitates real-time dynamic tilt monitoring through intelligent monitoring and adjustability. The tilt monitoring sensor (equipped with a buffer spring) built into the upper base column senses changes in the tower's verticality in real time. This data is remotely transmitted to a monitoring center, and warning thresholds are set to achieve automated monitoring and early warning of tilt risks. Combined with manual patrols (total station and level instrument inspections), this creates a dual tilt monitoring system of "real-time monitoring + periodic verification" to ensure timely detection of hidden dangers. The application also features highly adaptive adjustment, with an adjustment mechanism (screw-reinforcement column drive) supporting precise adjustment of the upper base column height (manually or with a tool-driven screw through the hexagonal socket). Combined with positioning sleeves and positioning bolts for locking, the baseplate height can be dynamically calibrated during installation or subsequent settlement, eliminating height differences caused by uneven concrete pouring or ground settlement, and preventing structural eccentricity caused by foundation height differences.

[0021] 4, The application has good durability and operation cost optimization effect; through multiple corrosion protection and connection reinforcement, and through ultrasonic and X-ray double detection of the welded joint, the integrity of the coupling beam structure is ensured; the high-strength bolts are re-tightened in stages and are provided with anti-loosening measures to prevent connection failure caused by long-term vibration. The surface of the steel member is coated with multi-layer asphalt anticorrosive paint, combined with the insulation protection of the anti-skid plate (wooden plate), to resist soil moisture and chemical corrosion and prolong the service life of the foundation; soil movement monitoring and low-cost operation: the positioning monitoring assembly (passive acoustic sensor + deflector plate) can sense soil vibration and displacement without power supply, and through the soil grabbing groove, the coupling with the soil is enhanced, realizing passive monitoring of underground pipeline leakage, ground subsidence and other hidden dangers. This design reduces the power supply and maintenance cost of traditional monitoring equipment, and through the adjustable mechanism, reduces the frequency of maintenance and reinforcement caused by settlement, significantly reducing the whole life cycle operation and maintenance cost.

[0022] 5, The installation process of the application adopts the process of "layered pouring - modular assembly - dynamic calibration", which is convenient for construction and modular assembly; the design of the embedded base and the uplift hook rib simplifies the foundation pit construction, and the bolt connection and flange disc interface support rapid assembly. The integrated design of the adjusting mechanism and the positioning monitoring assembly enables the on-site height calibration and the monitoring equipment installation to be completed synchronously, shortening the construction period and improving the engineering efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in conjunction with the drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the application;

[0025] Figure 2 It is a schematic diagram of the front view structure of the application;

[0026] Figure 3 It is a schematic diagram of the top view structure of the application;

[0027] Figure 4 It is a schematic diagram of the first view structure after the positioning sleeve is removed;

[0028] Figure 5 It is a schematic diagram of the second view structure after the positioning sleeve is removed;

[0029] Figure 6 It is a schematic diagram of the first view structure of the application;

[0030] Figure 7 It is a schematic diagram of the second view structure of the application;

[0031] Figure 8 It is a schematic diagram of the connection structure of the side connecting pipe and the diagonal connecting pipe and the reinforcing mechanism;

[0032] Figure 9 Figure 7 is a schematic view of the installation state of the side connecting pipe and the diagonal connecting pipe;

[0033] Figure 10 Figure 8 is a schematic view of the connection structure of the diagonal connecting pipe and the positioning monitoring assembly;

[0034] Figure 11 Figure 9 is a schematic view of the internal structure of the lower base column and the upper base column;

[0035] Figure 12 Figure 10 is a schematic view of the positional relationship between the reinforcing column and the screw rod;

[0036] Figure 13 Figure 11 is a schematic view of the structure of the positioning monitoring assembly;

[0037] Figure 14 Figure 12 is a schematic view of the installation structure of the buffer plate and the inclination monitoring sensor.

[0038] In the figure, the serial numbers are as follows: 1, pre-embedded base; 2, lower base column; 3, upper base column; 4, positioning sleeve; 5, base plate; 6, operation port; 7, outer hoop plate; 8, inner hoop plate; 9, connecting plate; 10, lateral connecting seat; 11, reinforcing plate; 12, anti-skid plate; 13, reinforcing column; 14, screw rod; 15, inclination monitoring sensor; 16, diagonal connecting seat; 17, anti-seismic plate; 18, center seat; 19, cross reinforcing rod; 20, locking telescopic support column; 21, side connecting pipe; 22, diagonal connecting pipe; 23, support seat; 24, anti-pulling hook rib; 25, limiting bolt; 26, threaded pipe; 27, bidirectional screw rod; 28, fixing ring; 29, handle rod; 30, rotation-stopping rod; 31, deflection plate; 32, passive acoustic sensor. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0040] As shown in the drawings, Figures 1 to 14 The present application provides a double connecting beam reinforced foundation for a power transmission line tower with inclination monitoring function, which comprises four pre-embedded bases 1 arranged in a rectangular array, a lower base column 2 installed on the top of each pre-embedded base 1, and an upper base column 3 vertically installed on the top of the lower base column 2, a positioning sleeve 4 is sleeved between the upper part of the lower base column 2 and the lower part of the upper base column 3; a base plate 5 is installed on the top of the upper base column 3, a hoop plate structure is installed on the lower part of each lower base column 2 and the upper part of the upper base column 3, and an anti-skid plate 12 is arranged between the hoop plate structure and the pre-embedded base 1.

[0041] As shown in the drawings, Figure 1 , 4, 7, 11 and 12, the hoop plate structure comprises outer hoop plates 7 and inner hoop plates 8, the outer hoop plates 7 are installed on the lower outer sides of each lower column 2 and the upper outer sides of each upper column 3, the inner hoop plates 8 are installed on the lower inner sides of each lower column 2 and the upper inner sides of each upper column 3, and the two ends of the outer hoop plates 7 and the inner hoop plates 8 are fixed by a plurality of bolts. The outer hoop plates 7 and the inner hoop plates 8 are L-shaped plate structures, and the inner sides of the outer hoop plates 7 and the inner hoop plates 8 are provided with anti-skid grooves, and the anti-skid grooves are padded with anti-skid plates 12, the anti-skid plates 12 are made of wood, the wood is padded between the hoop plate structure and the embedded base 1, the wood can protect the column and strengthen the stability of the hoop plate structure, so that the hoop plate structure is more firmly and stably attached to the embedded base 1. When installing the outer hoop plates 7 and the inner hoop plates 8, the bolts are not tightened, and they are slightly fixed, so as to facilitate subsequent height adjustment operation, and after adjustment, the outer hoop plates 7 and the inner hoop plates 8 are tightened and locked.

[0042] The inner hoop plates 8 of the four lower columns 2 are provided with a lower beam connecting mechanism, the inner hoop plates 8 of the four upper columns 3 are provided with an upper beam connecting mechanism, and a reinforcing mechanism cooperating with the lower beam connecting mechanism and the upper beam connecting mechanism is installed at the center position between the four embedded bases 1; the lower column 2 is internally provided with an adjusting mechanism for adjusting the height of the upper column 3; the double-beam foundation composed of various components can connect multiple independent foundations into a whole through a specific structure, so that the foundations can support and work together; compared with a single independent foundation, the double-beam foundation composed of various components can better disperse and transfer stress when facing uneven subsidence of the surface of the goaf, avoid tilting or even collapse of the power transmission line tower due to excessive local foundation subsidence difference, and greatly improve the overall stability of the power transmission line tower foundation.

[0043] Due to the complex geological conditions of the goaf, problems such as stratum deformation and collapse are prone to occur; the lower beam mechanism and the upper beam mechanism in the double-beam foundation composed of various components can effectively resist such deformation, when a part of the foundation is affected by deformation, other parts of the foundation can be adjusted and compensated through the beam structure, thereby reducing the adverse effects on the power transmission line tower and ensuring the verticality and stability of the power transmission line tower; the double-beam foundation generally has a large bottom area, compared with the traditional single foundation, it can more evenly distribute the load borne by the power transmission line tower to the foundation, reducing the pressure borne by the unit area of the foundation, thereby improving the bearing capacity of the foundation, and it is more suitable for use in areas with relatively poor geological conditions such as goaf; after the connection between each component is completed, a system that works together is formed; when bearing load, each foundation works together to bear greater external force; for example, when encountering natural disasters such as strong winds, snow and ice, the load borne by the power transmission line tower increases, and the double-beam foundation formed can better bear these additional loads and ensure the safe operation of the power transmission line; since the double-beam foundation can adapt to uneven settlement, it avoids the generation of excessive additional stress on the power transmission line tower structure due to excessive settlement difference; this can prolong the service life of the power transmission line tower, reduce maintenance and reinforcement work caused by foundation settlement problems, and reduce operation and maintenance costs.

[0044] As shown in Figure 1 , 2 , 3, 12, the lower beam mechanism and the upper beam mechanism each include a connecting plate 9 welded to the middle part of the outer side of the inner hoop plate 8, a lateral connecting seat 10 installed on the outer side of the connecting plate 9 on both sides, and a side connecting pipe 21 installed at the outer end of the connecting plate 9. The top and bottom surfaces of the connecting plate 9 are each welded with four triangular reinforcing plates 11, and the inner ends of the reinforcing plates 11 are welded and fixed between the inner hoop plate 8; the connecting plate 9 between the two lateral connecting seats 10 is also provided with a diagonal connecting seat 16, and the outer end of the diagonal connecting seat 16 is connected with a diagonal connecting pipe 22 through a flange plate; the inner ends of the two side connecting pipes 21 in the same axial direction are connected and fixed through a reinforcing flange plate; the diagonal connecting pipe 22 in the lower beam mechanism and the upper beam mechanism is provided with a positioning and monitoring assembly for improving the beam support force and monitoring soil movement.

[0045] As shown in Figure 1 , 2, 4, 6, 8, the reinforcing mechanism comprises two upper and lower parallel center seats 18, a plurality of locking telescopic support columns 20 installed on the circumferential side between the two center seats 18, and reinforcing flanges welded at the four corners of the center seat 18, the center seat 18 is an octagonal plate, and a cross-shaped reinforcing rod 19 is integrally formed in the middle of the center seat 18, and the inner end of the diagonal connecting pipe 22 is connected and fixed with the reinforcing flange on the center seat 18 through bolts; the locking telescopic support column 20 is composed of a fixed cylinder, a top rod located in the fixed cylinder, and a locking bolt screwed on the upper part of the outer side of the fixed cylinder, and a plurality of locking holes are equidistantly arranged on the lower part of the outer side of the top rod, and the inner end of the locking bolt abuts in one of the locking holes.

[0046] As shown in Figure 10 , 11 , 12, the adjusting mechanism comprises a screw rod 14 rotatably arranged in the middle of the inner bottom surface of the lower base column 2, a reinforcing column 13 vertically inserted into the rectangular opening of the lower base column 2, and an inner hexagonal groove arranged on the top end surface of the screw rod 14, the upper part of the reinforcing column 13 is fixedly connected with the inner wall of the upper base column 3, and a threaded hole cooperating with the screw rod 14 is vertically and penetratively arranged in the middle of the reinforcing column 13; an operating opening 6 for rotating the screw rod 14 is arranged in the middle of the top surface of the base plate 5, and mounting holes for connecting the power transmission tower are arranged at the four corners of the top surface of the base plate 5; positioning bolts are arranged on the upper and lower ends of the outer side of the positioning sleeve 4, and a plurality of positioning holes cooperating with the positioning bolts are equidistantly arranged on the upper circumferential side of the lower base column 2 and the lower circumferential side of the upper base column 3, and the inner end of the positioning bolt is connected in the corresponding positioning hole.

[0047] The anti-seismic plate 17 in the form of a hoop is arranged between the lower base column 2 and the pre-buried base 1, and the "J" shaped anti-pulling hook 24 is arranged at the four corners of the bottom of the pre-buried base 1; the buffer groove is arranged on the top of the front end surface of the upper base column 3, the buffer plate is slidably arranged in the buffer groove, the inclination monitoring sensor 15 is arranged on the front end surface of the buffer plate, one end of the buffer spring is fixedly connected with the four corners of the inner side surface of the buffer plate, and the other end of the buffer spring is fixedly connected with the inner side wall of the buffer groove; the power supply module for electrically connecting with the inclination monitoring sensor 15 is arranged at the rear end in the buffer groove.

[0048] As shown in Figure 8 , 9, 10, 13, 14, the positioning monitoring assembly includes a support seat 23 fixedly sleeved on the upper and lower two diagonal connecting pipes 22, a threaded pipe 26 fixed between the opposite surfaces of the upper and lower two support seats 23, and a bidirectional screw rod 27 screw-connected between the interiors of the two threaded pipes 26, one side surface of the support seat 23 is screw-connected with a limiting bolt 25, and the inner end of the limiting bolt 25 is abuttingly locked with the outer wall of the diagonal connecting pipe 22; the middle part of the bidirectional screw rod 27 is fixedly sleeved with a fixing ring 28, the circumferential side of the fixing ring 28 is fixedly connected with three horizontally arranged handle bars 29, and the top surface and the bottom surface outer end and the middle part of the handle bars 29 are all vertically fixedly connected with a rotation-stopping rod 30, the upper two rotation-stopping rods 30 and the lower two rotation-stopping rods 30 are both movably hinged with a deflection plate 31 for monitoring the soil body settlement displacement through a pin shaft; the deflection plate 31 is in a drooping state under the action of gravity, a plurality of deflectable soil grabbing grooves are equidistantly formed in the two side surfaces of the deflection plate 31, the soil grabbing grooves on the two sides of the deflection plate 31 are arranged in a staggered manner, the soil grabbing effect of the deflection plate 31 buried in the soil layer can be improved through the staggered arrangement of the soil grabbing grooves; a passive acoustic sensor 32 is embeddedly installed at one side of the bottom of the deflectable soil grabbing groove; the model of the passive acoustic sensor 32 is DAS-U250, which is buried in the ground or underground, and is used for detecting seismic waves, object vibration or sound source position such as geological monitoring; the detection principle of the passive acoustic sensor 32 is that the mechanical vibration of soil and rock is sensed through a piezoelectric element or an accelerometer, and the vibration signal can be converted into an electric signal without power supply; after being buried, the vibration wave can be transmitted to the passive acoustic sensor 32 through solid medium, so as to realize the positioning of the seismic source or vibration source.

[0049] Through the cooperation of the adjusting mechanism and the positioning monitoring assembly, the structure design of the double-continuous beam foundation has certain adjustability, and additional stress is reduced.

[0050] Working principle: in the embodiment, the application further provides an installation method of the double-continuous beam foundation of the transmission line tower with the inclination monitoring function, which comprises the following steps:

[0051] Step one: first, according to the installation position of the transmission line tower, a pre-buried foundation pit is excavated, four pouring pools are excavated at the four corners in the foundation pit, and a steel reinforcement framework is laid in the pouring pools and the pre-buried foundation pit, then the lower layer of the pouring pools and the pre-buried foundation pit is poured with concrete (the depth of the pouring pool is one hundred centimeters, and the concrete pouring layer in the pre-buried foundation pit is thirty centimeters thick), the pre-buried base 1 is placed on the surface of the concrete layer of the corresponding pouring pool before the poured concrete is solidified, then the anti-pulling hook rib 24 is inserted into the concrete in the pouring pool, and the concrete in the pre-buried foundation pit is waited to complete the solidification and curing.

[0052] Step two, then install the lower column 2 on the top of the pre-embedded base 1 through a plurality of bolts, after the four lower columns 2 are installed, the upper column 3 with the reinforcing column 13 is installed on the lower column 2 (when installing, the hexagonal rod is inserted into the hexagonal slot on the top of the screw rod 14, the screw rod 14 does not rotate, and then the upper column 3 is manually rotated to drive the reinforcing column 13 to rotate and descend on the screw rod 14 to complete the preliminary installation, before the reinforcing column 13 enters the lower column 2, the screw rod 14 is rotated to make the reinforcing column 13 descend into the rectangular inner cavity of the lower column 2), then the positioning sleeve 4 is installed on the top of the upper column 3 to the joint position of the lower column 2 and the upper column 3, and then the base plate 5 is bolted on the top of the upper column 3, and then the construction personnel observe whether the heights of the four base plates 5 are consistent with the level meter (the purpose of observation here is to avoid uneven settlement of the concrete pouring platform during the solidification process), if there is a difference in the height of the base plate 5, the external hexagonal rod is inserted into the hexagonal slot to drive the screw rod 14 to rotate, and the rotating screw rod 14 can adjust the height of the reinforcing column 13 and the base plate 5 installed on the top of the upper column 3; after the height of each base plate 5 is adjusted to be consistent, the spacing between the lower column 2 and the upper column 3 is locked and fixed by the positioning bolt and the positioning sleeve 4.

[0053] Step three, then install the inclination monitoring sensor 15 with the power supply module in the buffer groove of the upper column 3, and the wire on the power supply module is pulled out from the threading hole on the side wall of the upper column 3, then the outer hoop plate 7 and the inner hoop plate 8 are installed on the lower column 2 and the upper column 3, then the lower beam mechanism is installed between the four lower columns 2 through the bolts and flanges, and then the upper beam mechanism is also installed between the four height-adjusted upper columns 3 through the bolts and flanges.

[0054] Step four, then adjust the spacing of the two center seats 18 in the reinforcing mechanism according to the spacing of the inner hoop plates 8 installed on the lower column 2 and the upper column 3, after the spacing of the center seat 18 is adjusted, the locking screw is used to lock and fix the locking telescopic support column 20 after adjustment, and then the adaptive adjustment of the reinforcing mechanism is completed; then adjust the spacing between the upper and lower diagonal connecting pipes 22 according to the adjusted reinforcing mechanism, rotate the bidirectional screw rod 27 fixed by the fixed ring 28 by rotating the handle rod 29, and when the bidirectional screw rod 27 rotates, the spacing between the two threaded pipes 26 is pushed or pulled, and then the purpose of adjusting the spacing between the upper and lower diagonal connecting pipes 22 is achieved; then install the adjusted diagonal connecting pipes 22, connect and fix the outer end of the diagonal connecting pipes 22 with the diagonal connecting seat 16 on the connecting plate 9; then connect and fix the inner end of the diagonal connecting pipes 22 with the reinforcing flange plate on the center seat 18; complete the assembly operation of the whole double-beam foundation.

[0055] Step five, then the welding of each welded connection node at the opening for detection, using ultrasonic testing and X-ray testing in combination, double protection welding quality, to ensure the integrity and reliability of the double beam foundation; then the high-strength bolts used for re-tightening operation, and according to the specified torque value of multiple times gradually tighten the bolt, avoid the structure damage caused by single tightening force too large; after the completion of the bolt fastening, using the lock nut, split pin and other multiple anti-loosening measures to ensure that the bolt connection is always stable and reliable in the long run.

[0056] Step six, then all the installed steel components are thoroughly surface treated; first use an electric steel wire brush to thoroughly remove surface rust, oil and other impurities until the metal gloss is exposed; then, evenly apply multiple layers of asphalt anticorrosive paint, the interval time and thickness of each layer of paint strictly follow the process standard to ensure the formation of a dense, durable anticorrosive coating, effectively resisting the corrosion of soil, moisture and other environmental factors on the steel components, greatly extending the service life of the structure.

[0057] Step seven, the foundation pit is backfilled; after the anticorrosive coating is fully dried and cured, select the backfilling soil material that meets the design requirements, and use the method of layered backfilling and layered tamping to perform the foundation backfilling operation; the thickness of each layer of backfilling soil is controlled within 30 cm, and small tamping machinery is used in combination with manual tamping to avoid the area where the structure is installed during tamping, ensuring that the backfilling soil density meets the design standard, providing stable lateral support for the double beam foundation, and ensuring the overall structure of the transmission line tower is firmly rooted in the ground; and after the backfilling soil body, the deflection plate 31 and the stop rod 30 are extruded by the soil body to limit the rotation handle 29, avoiding the change of the distance between the two threaded pipes 26 adjusted by the bidirectional screw rod 27; and when the deflection plate 31 is buried in the soil body, the passive acoustic sensor 32 installed at the bottom end can also monitor the movement of the soil body. The main monitoring method is to determine the initial position of the passive acoustic sensor 32 after burying, if the soil body moves due to the collapse of the mined-out area in the subsequent process, the passive acoustic sensor 32 installed at the bottom end of the deflection plate 31 will change position, and then the passive acoustic sensor 32 with the changed position will monitor the movement of the soil body, and also can realize the sensing of the mechanical vibration of the soil, rock soil and rock in the subsequent foundation pit, and can realize the positioning of the seismic source or vibration source.

[0058] Step eight, after the completion of the foundation pit backfill, the inclination monitoring sensor 15 installed on the upper foundation column 3 is located above the backfill layer, and finally the power transmission line tower is installed on the base plate 5, and the installation operation of the power transmission line tower is finally completed. Subsequently, continuous monitoring is carried out through the inclination monitoring sensor 15, so as to facilitate real-time monitoring of the inclination change of the tower body; the inclination instrument data is transmitted to the remote monitoring center, a warning threshold is set, and once the inclination of the tower body approaches or exceeds the threshold, an alarm is triggered to notify the operation and maintenance personnel; at the same time, professional personnel are arranged to conduct regular manual special patrol measurement, and precise measuring instruments such as total station and level are used to detect key indicators such as power transmission line tower foundation settlement and coupling beam structure deformation in detail, and the data of the inclination monitoring sensor 15 is mutually verified, so as to ensure that any potential safety hazard is found and handled in time, and the long-term stable operation of the power transmission line tower is ensured.

[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A double bent reinforcement foundation for a power transmission tower with tilt monitoring function, characterized in that: The utility model provides a transmission line tower foundation, including four pre -buried base (1), install the lower column (2) of every pre -buried base (1) top and install the upper column (3) of vertical installation lower column (2) top, the top of upper column (3) is installed the base plate (5) for with transmission line tower fixed connection, the lower part of every lower column (2) and the upper part of upper column (3) are installed hoop plate structure, install the lower tie beam mechanism between the hoop plate structure of four lower columns (2), install the upper tie beam mechanism between the hoop plate structure of four upper columns (3), install the reinforcing mechanism of cooperation with lower tie beam mechanism and upper tie beam mechanism in the center position between four pre -buried base (1), install the positioning monitoring assembly for improving tie beam support force and soil movement monitoring between diagonal arrangement lower tie beam mechanism and upper tie beam mechanism, The front end surface of four upper columns (3) is installed with inclination monitoring sensor (15), The positioning monitoring assembly includes the support seat (23) of fixed sleeve connection in lower tie beam mechanism and upper tie beam mechanism, the threaded tube (26) of fixed in two support seats (23) between and the two -way screw rod (27) of screw connection between two threaded tubes (26), the side surface of support seat (23) is screw connected with limit bolt (25), the middle part of two -way screw rod (27) is fixed sleeve connection with fixed ring (28), and the circumferential side of fixed ring (28) is fixed with at least one horizontal setting handle lever (29), the top surface and the bottom surface of handle lever (29) are vertically fixed with at least two stop levers (30), the adjacent two stop levers (30) are movably hinged with the deflection plate (31) for monitoring soil settlement displacement through pin shaft, a plurality of swingable soil grooves that are set up upside down are equidistantly formed in the two side surfaces of deflection plate (31), and the side of soil groove is embedded with passive acoustic sensor (32); The hoop plate structure includes outer hoop plate (7) and inner hoop plate (8), the lower part outside of every lower column (2) and the upper part outside of upper column (3) are installed with outer hoop plate (7), the lower part inside of every lower column (2) and the upper part inside of upper column (3) are installed with inner hoop plate (8), and the both ends of outer hoop plate (7) and inner hoop plate (8) are connected and fixed through a plurality of bolts; The lower tie beam mechanism and upper tie beam mechanism all include the connecting plate (9) of welding in the outer side of inner hoop plate (8), the lateral connecting seat (10) of installing on the both sides of the outer side of connecting plate (9) through bolt and the side connecting pipe (21) of installing on connecting plate (9), and the top surface and the bottom surface of connecting plate (9) are all welded with reinforced plate (11), the connecting plate (9) between two lateral connecting seats (10) is also installed with diagonal connecting seat (16), and the outer end of diagonal connecting seat (16) is connected with diagonal connecting pipe (22) through flange plate, and the inner end between two side connecting pipes (21) in same axial direction is connected and fixed through reinforced flange plate, and the positioning monitoring assembly for improving tie beam support force and soil movement monitoring is installed between diagonal connecting pipe (22) in lower tie beam mechanism and upper tie beam mechanism.

2. The double bent cap reinforced foundation for power transmission tower with inclination monitoring function according to claim 1, characterized in that: The lower column (2) is internally installed with the adjusting mechanism for adjusting the height of upper column (3).

3. The double bent cap reinforced foundation for power transmission tower with inclination monitoring function according to claim 1, characterized in that: The outer hoop plate (7) and the inner hoop plate (8) are both L-shaped plate structures, and anti-skid grooves are formed in the inner sides of the outer hoop plate (7) and the inner hoop plate (8), and anti-skid plates (12) are arranged in the anti-skid grooves.

4. The double bent cap reinforced foundation for power transmission line tower with inclination monitoring function according to claim 1, characterized in that: The reinforcing mechanism comprises two center seats (18) arranged in parallel, a plurality of locking telescopic supporting columns (20) arranged on the circumferential side between the two center seats (18), and reinforcing flanges welded at four corners of the center seat (18), and the inner end of the diagonal connecting pipe (22) is connected and fixed with the reinforcing flanges on the center seat (18) through bolts.

5. The double bent reinforced foundation for transmission tower with tilt monitoring function according to claim 2, characterized in that: The adjusting mechanism comprises a screw rod (14) rotatably arranged in the middle of the inner bottom surface of the lower base column (2), a reinforcing column (13) vertically inserted into the rectangular opening of the lower base column (2), and an inner hexagonal groove formed in the top end surface of the screw rod (14), the upper column body of the reinforcing column (13) is fixedly connected with the inner wall of the upper base column (3), and a threaded hole cooperating with the screw rod (14) is vertically and penetratingly formed in the middle of the reinforcing column (13); the middle of the top surface of the base plate (5) is provided with an operation opening (6) for rotating the screw rod (14).

6. The double bent reinforced foundation for transmission tower with tilt monitoring function according to claim 5, characterized in that: The lower base column (2) and the upper base column (3) are sleeved with a positioning sleeve (4) between the upper part of the lower base column (2) and the lower part of the upper base column (3), positioning bolts are arranged on the upper and lower ends of the outer side surface of the positioning sleeve (4), and a plurality of positioning holes cooperating with the positioning bolts are equidistantly formed on the circumferential side of the upper part of the lower base column (2) and the circumferential side of the lower part of the upper base column (3), and the inner end of the positioning bolt is connected in the corresponding positioning hole.

7. The double bent cap foundation for transmission tower with tilt monitoring function according to claim 1, characterized in that: The lower base column (2) and the embedded base (1) are provided with a hoop type anti-seismic plate (17), and the bottom four corners of the embedded base (1) are provided with "J" shaped anti-pulling hook ribs (24).

8. The double bent cap foundation for transmission tower with tilt monitoring function according to claim 1, characterized in that: The front end surface of the upper base column (3) is provided with a buffer groove, a buffer plate is slidably arranged in the buffer groove, an inclination monitoring sensor (15) is arranged on the front end surface of the buffer plate, one end of a buffer spring is fixedly connected with the four corners of the inner side surface of the buffer plate, and the other end of the buffer spring is fixedly connected with the inner side wall of the buffer groove; a power supply module for electrically connecting with the inclination monitoring sensor (15) is arranged at the rear end in the buffer groove.

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