CN106592673B - River channel construction section bottom mud monitoring and processing device and construction method thereof - Google Patents

Abstract

The invention discloses a river channel construction section sediment monitoring and processing device and a construction method thereof. The construction method comprises the following steps: the method comprises the following steps of measurement lofting, foundation pit excavation, bottom mud treatment pool construction, bottom mud recovery pool construction, bottom mud monitoring box arrangement and bottom mud monitoring test operation. The river channel construction section sediment monitoring and cleaning device is simple in structure, has obvious effects of monitoring and cleaning the sediment of the river channel construction section, not only improves the strength of the river channel construction section, but also is convenient for treating the sediment with high pollutant content, and prevents secondary pollution caused by the release of pollutants in the sediment.

Description

River channel construction section bottom mud monitoring and processing device and construction method thereof

Technical Field

The invention relates to a river construction section bottom mud monitoring and processing device and a construction method thereof.

background

With the development of socioeconomic and the improvement of living standard, the requirements of people on the environmental quality are higher and higher. Riverways and lakes play an important role in the life of people. In the early stage, due to the insufficient understanding of people on the environmental pollution problem and the insufficient construction strength of sewage pipe networks and treatment facilities, the river channel is the main receptor for sewage discharge to a great extent, a large amount of untreated domestic sewage and industrial wastewater are directly discharged into the river channel, so that water body pollution is caused, and then pollutants enter bottom mud to form polluted sludge with different degrees. Pollutants are exchanged between the bottom mud and the water body, and when the amount of the pollutants in the water body is large, the pollutants are adsorbed by the bottom mud; when the amount of the pollutants in the water body is small, the pollutants adsorbed in the bottom mud are released into the water again. Therefore, when the river channel is used as a sewage receiving receptor for a long time, the sediment is bound to be polluted.

Water quality treatment among the prior art generally is to the water purification treatment, does not handle the silt of riverbed bottom, and bottom silt not only can absorb the pollutant, can release the absorbed pollutant again to the water simultaneously and form secondary pollution, consequently when making the pollutant and holding back, still need clear up the quality of the just better protection river course water of silt.

disclosure of Invention

the invention aims to provide a river construction section bottom mud monitoring and treating device and a technical scheme of a construction method thereof aiming at the defects in the prior art, the river construction section bottom mud monitoring and treating device is simple in structure and strong in operability, has obvious bottom mud monitoring and cleaning effects on a river construction section, improves the strength of the river construction section, prevents collapse when a bottom mud treating pool and a bottom mud recovery pool are constructed, is convenient to treat bottom mud with high pollutant content, improves the water quality of a river water body, prevents secondary pollution caused by the release of pollutants in the bottom mud, reduces the labor intensity of manual operation, and reduces the construction and maintenance cost.

In order to solve the technical problems, the invention adopts the following technical scheme:

The utility model provides a river course construction section bed mud monitoring processing apparatus which characterized in that: the bottom mud monitoring device comprises bottom mud monitoring boxes, a bottom mud treatment pool and a bottom mud recovery pool, wherein the bottom mud treatment pool is connected with the bottom mud recovery pool through a mud output pipe, a mud pump is arranged on the mud output pipe, a water inlet pipe is arranged on the top surface of the bottom mud treatment pool, the water inlet pipe is communicated to the water body of a river channel, a water suction pump is arranged on the water inlet pipe, a stirring mechanism is arranged in the bottom mud treatment pool, the bottom mud monitoring boxes are located in a mud layer and are fixedly connected in the mud layer through a support frame, the bottom mud monitoring boxes are connected with the bottom mud treatment pool through conveying pipes, and two adjacent bottom mud monitoring boxes are connected through conveying pipes; the bottom mud monitoring box is arranged in the sludge layer, so that the pollutants in the sludge layer of the construction section of the river channel can be monitored in real time, when the content of pollutants in the bottom mud reaches a set value, a pressurizing and mud sucking mechanism in the bottom mud monitoring box starts to work, the bottom mud is sucked into a pressurizing and mud sucking cavity and conveyed into a bottom mud treatment pool through a conveying pipe, a water pump introduces water in a river channel into the bottom mud treatment pool, after being mixed and stirred with the bottom mud, the mixture enters a bottom mud recovery tank through a mud output pipe under the action of a mud pump, so that the uniform treatment is convenient, the mud at the bottom of the riverbed is effectively reduced, but also reduces the content of pollutants, is beneficial to improving the water quality of the riverway, can reduce the difficulty of manual cleaning and monitoring due to the design of the sediment monitoring and processing device, and the cleaning and maintenance cost is reduced, only the bottom mud recovery tank needs to be cleaned regularly, and the labor intensity is reduced.

Further, rabbling mechanism includes first motor and stirring rake, and first motor fixed connection is on the top in sediment processing pond, and the stirring rake rotates the below of connecting at first motor, drives the stirring rake through first motor and rotates, and then mixes absorptive silt and water stirring, and the output of the silt of being convenient for can effectively prevent simultaneously because of the jam that causes the pipeline in the silt too little, influences the normal transport of silt, has prolonged sediment monitoring processing apparatus's life.

further, the bottom mud monitoring box comprises a box body, a cover plate and a monitoring device, wherein a linking through hole is arranged on the box body, inner threads are arranged on the inner side surfaces of two ends of the linking through hole, the linking through hole is in threaded connection with a conveying pipe, the cover plate is positioned above the box body, a pressure boosting mud sucking cavity is arranged between the cover plate and the box body, a pressure boosting mud sucking mechanism is arranged in the pressure boosting mud sucking cavity, a mud outlet is arranged between the pressure boosting mud sucking cavity and the linking through hole, the monitoring device is fixedly connected on the top surface of the cover plate, a mud passing hole is arranged on the cover plate, pipeline positioning plates are arranged on the side surfaces of the box body positioned at two ends of the linking through hole, through the design of the inner threads, the connecting strength between the box body and the conveying pipe can be effectively improved, the sealing degree is improved, the normal conveying of mud is, make the transport of bed mud more stable high-efficient, can effectively prevent simultaneously that the stone of great granule from getting into the pressure boost in the silt layer and inhaling the mud chamber and cause the jam, the bed mud is inhaled the mud chamber through the pressure boost and is gone out the mud hole and get into and link up the through-hole, prevents that the bed mud from appearing adverse current and influencing the delivery pressure in the conveyer pipe.

further, mud mechanism is inhaled in pressure boost includes second motor, pivot and inhales the mud core, is provided with the baffle on the bottom surface of apron, and second motor fixed connection is in the top of baffle, inhales the mud core and connects the second motor through the pivot, drives the pivot through the second motor and rotates, and then drives and inhale the mud core and rotate, realizes the suction to the bed mud, and the baffle can reduce because of the vibration that the second motor produced, has improved the stability of bed mud monitoring box.

Further, be provided with the chip in the monitoring devices, signal transmitter, signal receiver and tester, signal transmitter and signal receiver symmetry set up the both sides at the chip, and connect the chip through the wire, the tester is located the below of chip, the tester passes through the wire and connects the chip, cross the downthehole detection needle that is provided with of mud, detect the tester of needle connection, bed mud in the silt layer gets into and crosses the mud hole, and adhere to on detecting the needle, the tester carries out the analysis of pollutant kind and content through bed mud to detecting on the needle, with information transfer to chip, through control second motor work after the data contrast with setting for in the chip, the chip passes through signal transmitter simultaneously and transmits the kind and the content information real-time of pollutant to remote control terminal in with the bed mud, the operating personnel of being convenient for in time knows the condition.

further, the pipeline locating plate includes the clamp plate that two symmetries set up, be provided with the locating hole on the clamp plate, pass the locating hole through the screw rod, realize the fixed connection of pipeline locating plate and box, form spacing hole between two clamp plates, spacing downthehole symmetry is provided with the extrusion piece, be provided with the counter bore on the terminal surface of clamp plate, be provided with adjusting screw in the counter bore, adjusting screw connects the extrusion piece, the design of clamp plate is easy to assemble and dismantlement not only, and can improve the tight degree of clamp of conveyer pipe, prevent to take place to leak because of not hard up, can adjust the volume of stretching out of extrusion piece through rotating adjusting screw, the stability of duct connections has been improved.

Furthermore, scales are arranged on the extrusion pieces, and the design of the scales can improve the positioning accuracy and the mounting accuracy of the conveying pipe during mounting, so that the two extrusion pieces are uniformly stressed, and the mounting and dismounting speeds are improved.

The construction method of the river channel construction section bottom mud monitoring and processing device is characterized by comprising the following steps:

1) survey lofting

a. firstly, according to the actual situation of a construction section of a surveyed river channel, making a construction scheme through measurement data, determining machine tool equipment and workers according to the construction scheme, then setting an equipment storage area at a position 200-300 m away from the construction section of the river channel, making warning signs around the equipment storage area, then conveying the machine tool equipment to the equipment storage area, and performing debugging work on the machine tool equipment;

b. Then, the excavator is driven to the edge of the construction section of the river channel, the slope of the construction section is cleaned and flapped tightly, then a reinforced area is defined on the slope by white lime powder according to the design sizes of the sediment treatment pool and the sediment recovery pool, then protection plates are laid according to the size of the reinforced area, the protection plates are laid downwards along the slope from the upper edge, and each protection plate is fixedly connected with the slope by a bolt until the whole reinforced area is laid;

2) excavation of foundation pit

a. after the protection plates are laid, determining the installation position of the bottom mud treatment pool according to the design requirements of a drawing, then, driving the excavator to a position 10-20 m away from the construction section, wherein the excavation length is 10-15 m, the excavation width is 8-12 m, the design depth is 1/2 of the distance from the top end of the construction section to the bottom of the river bed, excavating for 5 times, and the excavation depth of each time is 1/5 of the design depth until the final foundation pit is excavated;

b. Installing support plates on the side wall of the foundation pit according to design requirements of a drawing, installing a transverse positioning frame between two opposite support plates, fixing by using a fixing piece, preventing the side wall of the foundation pit from collapsing due to the action of external extrusion force and influencing the final forming of the foundation pit, enabling the central position of the foundation pit to form a cuboid cavity when the transverse positioning frame is abutted against the support plates, enabling the size of the cuboid cavity to be matched with that of the bottom mud treatment pool, then installing a vertical measuring instrument at the position close to the side wall at the bottom of the foundation pit, continuously observing the deformation condition of the support plates for 24 hours until the deformation of the support plates is within a design range, and then constructing the bottom mud treatment pool;

3) Construction of bottom mud treatment pool

a. Firstly, installing a mud grab bucket on a crane, enabling the mud grab bucket to be placed to the bottom along a foundation pit, excavating an installation pit at the bottom of the foundation pit, wherein the length and the width of the installation pit are matched with those of the foundation pit, and the depth of the installation pit is the distance from the bottom of the foundation pit to a river bed until the excavation of the installation pit is finished;

b. Cleaning the bottom surface and the side surface of the mounting pit, pouring with concrete, wherein the pouring thickness of the concrete is 10-20 cm, meanwhile, a round hole with the diameter of 60-90 cm is formed in the side surface close to the construction section, a wood stick is inserted into the round hole, the wood stick penetrates through the sludge layer, and a circular wood board is used for plugging the end surface of the round hole to form a bottom sludge treatment tank;

c. When the strength of the concrete meets the design requirement, determining the installation position of a sealing plate between the concrete on the side wall and the support plate, then installing a first motor on the top surface of the sealing plate, installing a stirring paddle on the bottom surface of the sealing plate, and then horizontally installing the sealing plate on the top surface of the bottom mud treatment pool;

d. Then installing a water inlet pipe with a water suction pump on a sealing plate, enabling the water outlet end of the water inlet pipe to be communicated with the sediment treatment tank, enabling the water inlet end of the water inlet pipe to be communicated with the river water body, then installing a sludge output pipe with the sludge suction pump on the sealing plate, enabling the distance between the inlet end of the sludge output pipe and the bottom surface of the sediment treatment tank to be less than 30-40 cm, sealing the outlet end of the sludge output pipe by using a sealing cover, and sealing the first motor;

e. after the bottom mud treatment tank is installed, removing a supporting plate and a transverse positioning frame in the foundation pit, backfilling clay into the foundation pit until the top surface of the backfilled clay is 6-8 m away from the top surface of the construction section, fixing the mud pump and the water pump when backfilling to the positions of the mud pump and the water pump, and then backfilling to prevent the leakage of the joint of the mud pump and the water pump from affecting the final sludge conveying effect;

4) Bottom mud recovery pool construction

firstly, leveling and cleaning the bottom surface and the side wall of a bottom mud recovery pool, then pouring concrete, wherein the thickness of the poured concrete is 30-40 cm, and installing a net cover above the bottom mud recovery pool after the strength of the concrete meets the design requirement;

5) arrangement of bottom mud monitoring boxes

a. determining the installation positions of the bottom mud monitoring boxes in a mud layer at the bottom of a river bed according to the size of the construction section of the river channel and the position of the accumulated mud, inserting white plastic bags into the corresponding installation positions, keeping the distance between every two installation positions at 1-2 m, and distributing the installation positions in a rectangular shape;

b. then, forming a groove with the size matched with that of the bottom sediment monitoring box at each mounting position, and then placing the bottom sediment monitoring box with the support frame into the groove for fixing until the bottom sediment monitoring box at each mounting position is mounted;

c. Then, a through groove is formed between every two adjacent bottom mud monitoring boxes, a support plate is installed in the through groove, then a conveying pipe is installed in the support plate, the two ends of the conveying pipe are respectively connected with the connecting through holes of the bottom mud monitoring boxes until the designed conveying pipe is installed completely, and then the support plate is detached;

d. drilling a hole with the diameter of 60-90 cm along the position of the wooden stick by using a drilling machine, enabling the hole to be matched with the round hole on the bottom mud treatment pool, then installing a conveying pipe in the hole, enabling one end of the conveying pipe to be connected with the round hole on the bottom mud treatment pool, and enabling the other end of the conveying pipe to be connected with a bottom mud monitoring box close to the wooden stick;

e. Finally, dismantling the protection plate on the slope surface of the construction end surface;

6) Sediment monitoring test run

The monitoring device on the sediment monitoring box is started at first, pollutants in the sludge at the bottom of the river channel construction section are detected through the monitoring device, when the content of the pollutants exceeds a set value of the monitoring device, the pressurizing sludge suction mechanism in the pressurizing sludge suction cavity starts to work, the sludge around the sediment monitoring box is sucked, the sludge enters the connecting hole through the sludge outlet hole and then is gathered into the conveying pipe, and finally the sludge enters the sediment treatment pool.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

1. the bottom mud monitoring box is arranged in the sludge layer, so that pollutants in the sludge layer of the construction section of the river channel can be monitored in real time, when the content of the pollutants in the bottom mud reaches a set value, a pressurizing sludge suction mechanism in the bottom mud monitoring box starts to work, the bottom mud is sucked into a pressurizing sludge suction cavity and conveyed into a bottom mud treatment pool through a conveying pipe, water in the river channel is introduced into the bottom mud treatment pool by a water suction pump, and the water and the bottom mud are mixed and stirred and then enter a bottom mud recovery pool through a sludge output pipe under the action of a sludge pump, so that the uniform treatment is facilitated, the sludge at the bottom of the river bed is effectively reduced, the content of the pollutants is reduced, and the improvement of the water quality of the river channel is facilitated;

2. The design of the sediment monitoring and processing device can reduce the difficulty of manual cleaning and monitoring, reduce the cleaning and maintenance cost, only need to clean the sediment recovery tank regularly, and reduce the labor intensity;

3. the design of the internal thread on the box body can effectively improve the connection strength between the box body and the conveying pipe, improve the sealing degree and prevent the normal conveying of sludge from being influenced by air leakage, and the pressurizing sludge suction cavity can not only suck the bottom sludge of a sludge layer, but also has the function of pressurizing conveying, so that the conveying of the bottom sludge is more stable and efficient, and simultaneously, larger-grained stones in the sludge layer can be effectively prevented from entering the pressurizing sludge suction cavity to cause blockage;

4. The detector analyzes the types and the content of pollutants in the sediment on the detection needle, transmits information to the chip, controls the second motor to work after comparing the information with data set in the chip, and simultaneously transmits the types and the content of the pollutants in the sediment to the remote control terminal in real time through the signal transmitter by the chip, so that an operator can know the conditions in time;

5. the design of the clamping plate is convenient to mount and dismount, the clamping degree of the conveying pipe can be improved, leakage caused by looseness is prevented, the extending amount of the extrusion piece can be adjusted by rotating the adjusting screw, and the connecting stability of the conveying pipe is improved;

6. the construction method provided by the invention has simple steps, not only improves the strength of the construction section of the river channel, prevents collapse when the bottom mud treatment tank and the bottom mud recovery tank are constructed, but also is convenient for treating the bottom mud with higher pollutant content, improves the water quality of the river channel water body, prevents secondary pollution caused by the release of pollutants in the bottom mud, reduces the labor intensity of manual operation, and reduces the construction and maintenance cost.

drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a construction effect diagram of a river construction section sediment monitoring and processing device and a construction method thereof;

FIG. 2 is a schematic structural view of a bottom mud monitoring box according to the present invention;

FIG. 3 is a schematic structural view of the pipe positioning plate according to the present invention;

fig. 4 is a schematic structural diagram of the monitoring device of the present invention.

In the figure: 1-constructing a section; 2-a bottom mud treatment tank; 3-a bottom mud recovery tank; 4-a first motor; 5-a sludge output pipe; 6-a mud pump; 7-water inlet pipe; 8-a water pump; 9-a conveying pipe; 10-bottom mud monitoring box; 11-a support frame; 12-a box body; 13-engaging the through hole; 14-a cover plate; 15-a monitoring device; 16-mud passing holes; 17-a detection needle; 18-a second electric machine; 19-a pressurized mud sucking cavity; 20-a rotating shaft; 21-a mud suction core body; 22-a mud outlet hole; 23-a pipe positioning plate; 24-a screw; 25-a clamping plate; 26-positioning holes; 27-a limiting hole; 28-pressing a sheet; 29-counter bore; 30-adjusting screws; 31-a chip; 32-a signal transmitter; 33-a signal receiver; 34-a tester; 35-sludge layer; 36-stirring paddle.

Detailed Description

As shown in fig. 1 to 4, the river channel construction section sediment monitoring and processing device of the invention comprises a sediment monitoring box 10, a sediment processing tank 2 and a sediment recovery tank 3, wherein the sediment processing tank 2 is connected with the sediment recovery tank 3 through a sediment output pipe 5, a mud pump 6 is arranged on the sediment output pipe 5, a water inlet pipe 7 is arranged on the top surface of the sediment processing tank 2, the water inlet pipe 7 is communicated with the water body of the river channel, a water pump 8 is arranged on the water inlet pipe 7, a stirring mechanism is arranged in the sediment processing tank 2, the stirring mechanism comprises a first motor 4 and a stirring paddle 36, the first motor 4 is fixedly connected with the top end of the sediment processing tank 2, the stirring paddle 36 is rotatably connected below the first motor 4, the stirring paddle 36 is driven by the first motor 4 to rotate, so as to stir and mix the absorbed sediment and water, thereby facilitating the output of the sediment, and simultaneously effectively preventing the pipeline from being blocked due to the fact that the moisture in the sediment is too little, the normal conveying of the sludge is influenced, and the service life of the bottom sludge monitoring and treating device is prolonged.

the sediment monitoring boxes 10 are positioned in the sludge layer 35 and fixedly connected in the sludge layer 35 through a support frame 11, the sediment monitoring boxes 10 are connected with the sediment treatment tank 2 through a conveying pipe 9, two adjacent sediment monitoring boxes 10 are connected through the conveying pipe 9, pollutants in the sludge layer 35 of the river channel construction section 1 can be monitored in real time by installing the sediment monitoring boxes 10 in the sludge layer 35, when the content of the pollutants in the sediment reaches a set value, a pressurizing sludge suction mechanism in the sediment monitoring boxes 10 starts to work to suck the sediment into a pressurizing sludge suction cavity 19 and convey the sediment into the sediment treatment tank 2 through the conveying pipe 9, a water pump 8 introduces water in the river channel into the sediment treatment tank 2, the water is mixed and stirred with the sediment and then enters the sediment recovery tank 3 through a sludge output pipe 5 under the action of a sludge pump 6, the treatment is convenient, the sludge at the bottom of the river bed is effectively reduced, and the content of the pollutants is reduced, the design of the sediment monitoring and processing device is favorable for improving the water quality of a river channel, the difficulty of manual cleaning and monitoring can be reduced, the cleaning and maintenance cost is reduced, only the sediment recovery tank 3 needs to be cleaned regularly, the labor intensity is reduced, the sediment monitoring box 10 comprises a box body 12, a cover plate 14 and a monitoring device 15, a linking through hole 13 is arranged on the box body 12, inner threads are arranged on the inner side surfaces of two ends of the linking through hole 13, the linking through hole 13 is in threaded connection with a conveying pipe 9, the cover plate 14 is positioned above the box body 12, a pressure boosting sediment suction cavity 19 is arranged between the cover plate 14 and the box body 12, a pressure boosting sediment suction mechanism is arranged in the pressure boosting sediment suction cavity 19, a sediment outlet 22 is arranged between the pressure boosting sediment suction cavity 19 and the linking through hole 13, the monitoring device 15 is fixedly connected on the top surface of the cover plate 14, a sediment passing hole 16 is arranged on the cover plate 14, pipeline positioning plates 23 are, through the design of internal screw thread, can effectively improve the joint strength of box 12 and conveyer pipe 9, improve sealed degree, prevent to appear leaking gas and influence the normal transport of silt, pressure boost suction chamber 19 not only can inhale the bed mud on silt layer 35, and the effect of pressure boost transport has, the transport that makes the bed mud is more stable high-efficient, can effectively prevent simultaneously that the stone of great granule in silt layer 35 from getting into pressure boost suction chamber 19 and causing the jam, the bed mud gets into linking through-hole 13 through pressure boost suction chamber 19 and mud outlet 22, prevent that the bed mud from appearing adverse current and influencing the conveying pressure in the conveyer pipe 9.

the mud mechanism is inhaled in pressure boost includes second motor 18, pivot 20 and inhale mud core 21, be provided with the baffle (not marking out in the picture) on the bottom surface of apron 14, 18 fixed connection of second motor are in the top of baffle, inhale mud core 21 and connect second motor 18 through pivot 20, drive pivot 20 through second motor 18 and rotate, and then drive and inhale mud core 21 and rotate, realize the suction to the bed mud, the baffle can reduce the vibration because of the production of second motor 18, the stability of bed mud monitoring box 10 has been improved.

The monitoring device 15 is internally provided with a chip 31, a signal transmitter 32, a signal receiver 33 and a tester 34, the signal transmitter 32 and the signal receiver 33 are symmetrically arranged at two sides of the chip 31 and are connected with the chip 31 through leads, the tester 34 is positioned below the chip 31, the tester 34 is connected with the chip 31 through leads, a detection needle 17 is arranged in a sludge passing hole 16, the detection needle 17 is connected with the tester 34, bottom sludge in a sludge layer 35 enters the sludge passing hole 16 and is attached to the detection needle 17, the tester 34 analyzes the type and content of pollutants in the bottom sludge on the detection needle 17 and transmits information to the chip 31, the second motor 18 is controlled to work after comparing with data set in the chip 31, meanwhile, the chip 31 transmits the type and content information of the pollutants in the bottom sludge to a remote control terminal through the signal transmitter 32 in real time, so that an operator can know the conditions in time, the results of monitoring for contaminants are shown in table 1.

element name	standard bottom mud (mg/kg)
		copper (Cu)	30±3
platinum (II)	53±4
		Zinc	168±15
Cadmium (Cd)	0.55±0.12
		chromium (III)	354±25
Nickel (II)	72±5

TABLE 1 monitoring of contaminants

the pipeline positioning plate 23 comprises two clamping plates 25 which are symmetrically arranged, the clamping plates 25 are provided with positioning holes 26, a screw rod 24 penetrates through the positioning holes 26 to realize the fixed connection of the pipeline positioning plate 23 and the box body 12, a limiting hole 27 is formed between the two clamping plates 25, the limiting hole 27 is internally and symmetrically provided with squeezing pieces 28, the end surface of the clamping plate 25 is provided with a counter bore 29, an adjusting screw 30 is arranged in the counter bore 29, the adjusting screw 30 is connected with the squeezing pieces 28, the design of the clamping plates 25 is not only convenient to install and disassemble, but also can improve the clamping degree of the conveying pipe 9 and prevent leakage caused by loosening, the extending amount of the squeezing pieces 28 can be adjusted by rotating the adjusting screw 30, the connecting stability of the conveying pipe 9 is improved, the squeezing pieces 28 are provided with scales, the scale design can improve the positioning accuracy and the installation accuracy of the conveying pipe 9 during installation, and ensure that the stress, the speed of installation and dismantlement is improved.

The construction method of the bottom mud monitoring and processing device for the river construction section 1 comprises the following steps:

1) survey lofting

a. firstly, according to the actual situation of a construction section 1 of a surveying river channel, a construction scheme is formulated through measurement data, tool equipment and workers are determined according to the construction scheme, then an equipment storage area is set at a position 200-300 m away from the construction section of the river channel, warning signs are made around the equipment storage area, the tool equipment is conveyed to the equipment storage area, and the tool equipment is debugged;

b. then, the excavator is driven to the edge of the river construction section 1, the slope of the construction section 1 is cleaned and flapped tightly, then a reinforcing area is defined on the slope by white lime powder according to the design size of the sediment treatment tank 2 and the sediment recovery tank 3, then protection plates are laid according to the size of the reinforcing area, the protection plates are laid downwards along the slope from the upper edge, and each protection plate is fixedly connected with the slope by a stud until the whole reinforcing area is laid;

2) excavation of foundation pit

a. After the protection plates are laid, determining the installation position of the bottom mud treatment pool 2 according to the design requirements of a drawing, then, opening the excavator to a position 110-20 m away from the construction section, wherein the excavation length is 10-15 m, the excavation width is 8-12 m, the design depth is 1/2 of the distance from the top end of the construction section 1 to the bottom of the river bed, excavating for 5 times, and the excavation depth of each time is 1/5 of the design depth until the final foundation pit is excavated;

b. installing support plates on the side wall of the foundation pit according to the design requirements of a drawing, installing a transverse positioning frame between two opposite support plates, fixing by using a fixing piece, preventing the side wall of the foundation pit from collapsing due to the action of external extrusion force and influencing the final forming of the foundation pit, enabling the central position of the foundation pit to form a cuboid cavity when the transverse positioning frame is abutted against the support plates, enabling the size of the cuboid cavity to be matched with the size of the bottom mud treatment pool 2, then installing a vertical measuring instrument at the position close to the side wall at the bottom of the foundation pit, continuously observing the deformation condition of the support plates for 24 hours until the deformation of the support plates is within the design range, and then constructing the bottom mud treatment pool 2;

3) Construction of bottom mud treatment pool

a. Firstly, installing a mud grab bucket on a crane, enabling the mud grab bucket to be placed to the bottom along a foundation pit, excavating an installation pit at the bottom of the foundation pit, wherein the length and the width of the installation pit are matched with those of the foundation pit, and the depth of the installation pit is the distance from the bottom of the foundation pit to a river bed until the excavation of the installation pit is finished;

b. Cleaning the bottom surface and the side surface of the mounting pit, pouring with concrete, wherein the pouring thickness of the concrete is 10-20 cm, meanwhile, a round hole with the diameter of 60-90 cm is formed in the side surface close to the construction section 1, a wood stick is inserted into the round hole, the wood stick penetrates through the sludge layer 35, and the end surface of the round hole is plugged with a round wood board to form a bottom sludge treatment tank 2;

c. when the strength of the concrete meets the design requirement, determining the installation position of a sealing plate (not shown in the figure) between the concrete on the side wall and the support plate, then installing a first motor 4 on the top surface of the sealing plate, installing a stirring paddle 36 on the bottom surface of the sealing plate, and then horizontally installing the sealing plate on the top surface of the bottom mud treatment pool 2;

d. then, installing a water inlet pipe 7 with a water suction pump 8 on a sealing plate, enabling the water outlet end of the water inlet pipe 7 to be communicated with the bottom mud treatment pool 2, enabling the water inlet end of the water inlet pipe 7 to be communicated with the river water body, then installing a sludge output pipe 5 with a sludge suction pump 6 on the sealing plate, enabling the distance between the inlet end of the sludge output pipe 5 and the bottom surface of the bottom mud treatment pool 2 to be less than 30-40 cm, sealing the outlet end of the sludge output pipe 5 by using a sealing cover, carrying out sealing treatment on the first motor 4, and meanwhile installing a circuit pipeline (not marked in the figure) above the first motor 4;

e. After the bottom mud treatment tank 2 is installed, removing a supporting plate and a transverse positioning frame in the foundation pit, backfilling clay into the foundation pit until the top surface of the backfilled clay is 6-8 m away from the top surface of the construction section 1, fixing the mud pump 6 and the water pump 8 when backfilling to the positions of the mud pump 6 and the water pump 8, then backfilling to prevent the leakage of the joint of the mud pump 6 and the water pump 8 and influence on the final sludge conveying effect, tamping the backfilled clay by using a tamper, fixing the outlet end of the sludge output pipe 5, and marking;

4) Bottom mud recovery pool construction

Firstly, leveling and cleaning the bottom surface and the side wall of the bottom mud recovery pool 3, then pouring with concrete, wherein the thickness of the pouring is 30-40 cm, positioning a pouring area with a wood plate during pouring to prevent uneven pouring of the concrete, and installing a mesh cover (not shown in the figure) above the bottom mud recovery pool 3 after the strength of the concrete meets the design requirement, so that the safety is improved;

Then installing a storage battery box at a position 3-4 m away from the bottom mud recovery tank, and connecting the storage battery box with a circuit pipeline;

5) Arrangement of bottom mud monitoring boxes

a. Determining the installation positions of the bottom mud monitoring boxes 10 in a mud layer 35 at the bottom of a river bed according to the size of a river channel construction section 1 and the position of mud accumulation, inserting white plastic bags into the corresponding installation positions, keeping the distance between every two installation positions at 1-2 m, and distributing the installation positions in a rectangular shape;

b. Then, forming a groove with the size matched with that of the bottom sediment monitoring box 10 at each mounting position, and then placing the bottom sediment monitoring box 10 with the support frame 11 into the groove for fixing until the bottom sediment monitoring box 10 at each mounting position is mounted;

c. then, a through groove is formed between two adjacent bottom mud monitoring boxes 10, a support plate is arranged in the through groove, then a conveying pipe 9 is arranged in the support plate, two ends of the conveying pipe 9 are respectively connected with the connecting through holes 13 of the bottom mud monitoring boxes 10 until the designed conveying pipe 9 is completely arranged, and then the support plate is removed;

d. drilling a hole with the diameter of 60-90 cm along the position of the wooden stick by using a drilling machine, enabling the hole to be matched with the round hole on the bottom mud treatment pool 2, then installing a conveying pipe 9 in the hole, enabling one end of the conveying pipe 9 to be connected with the round hole on the bottom mud treatment pool 2, and enabling the other end of the conveying pipe 9 to be connected with a bottom mud monitoring box 10 close to the wooden stick;

e. Finally, the protection plate on the slope surface of the construction end surface is dismantled, and the monitoring device above the box body is connected with the circuit pipeline through the conveying pipe;

6) sediment monitoring test run

the method comprises the steps of firstly starting a monitoring device 15 on a bottom mud monitoring box 10, detecting pollutants in bottom mud of a river channel construction section 1 through the monitoring device 15, when the content of the pollutants exceeds a set value of the monitoring device 15, starting a pressurizing mud suction mechanism in a pressurizing mud suction cavity 19 to suck the mud around the bottom mud monitoring box 10, entering a connecting through hole 13 through a mud outlet hole 22, converging the mud into a conveying pipe 9, finally entering a bottom mud treatment pool 2, sucking water in the river channel into the bottom mud treatment pool 2 through a water suction pump 8, diluting the mud after stirring by a stirring paddle 36, uniformly entering the bottom mud recovery pool 3 through a mud output pipe 5 under the action of a mud suction pump 6, and cleaning the bottom mud in the bottom mud recovery pool 3 by a worker at a regular time, wherein the bottom mud of a mud layer can be monitored and cleaned by the bottom mud monitoring and processing device at a regular time.

the above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.

Claims (7)

1. The utility model provides a river course construction section bed mud monitoring processing apparatus which characterized in that: the bottom sludge monitoring device comprises bottom sludge monitoring boxes, a bottom sludge treatment pool and a bottom sludge recovery pool, wherein the bottom sludge treatment pool is connected with the bottom sludge recovery pool through a sludge output pipe, a sludge pump is arranged on the sludge output pipe, a water inlet pipe is arranged on the top surface of the bottom sludge treatment pool, the water inlet pipe is communicated to a water body of a river channel, a water pump is arranged on the water inlet pipe, a stirring mechanism is arranged in the bottom sludge treatment pool, the bottom sludge monitoring boxes are located in a sludge layer and fixedly connected in the sludge layer through a support frame, the bottom sludge monitoring boxes are connected with the bottom sludge treatment pool through conveying pipes, and two adjacent bottom sludge monitoring boxes are connected through the conveying pipes;

the sediment monitoring case includes box, apron and monitoring devices, be provided with the linking through-hole on the box, all be provided with the internal thread on the both ends medial surface that links up the through-hole, link up through-hole threaded connection the conveyer pipe, the apron is located the top of box, the apron with it inhales the mud chamber to be provided with the pressure boost between the box, the pressure boost is inhaled the mud intracavity and is provided with the pressure boost and inhales mud mechanism, the pressure boost inhale the mud chamber with it is provided with out the mud hole to link up between the through-hole, monitoring devices fixed connection be in on the top surface of apron, be provided with the mud hole on the apron, the box is located all be provided with the pipeline locating plate on the side that links.

2. the river channel construction section sediment monitoring and processing device of claim 1, characterized in that: the stirring mechanism comprises a first motor and a stirring paddle, the first motor is fixedly connected to the top end of the bottom mud treatment pool, and the stirring paddle is rotatably connected to the lower portion of the first motor.

3. the river channel construction section sediment monitoring and processing device of claim 1, characterized in that: the mud mechanism is inhaled in pressure boost includes second motor, pivot and inhales the mud core, be provided with the baffle on the bottom surface of apron, second motor fixed connection be in the top of baffle, it passes through to inhale the mud core the pivot is connected the second motor.

4. the river channel construction section sediment monitoring and processing device of claim 1, characterized in that: be provided with chip, signal transmitter, signal receiver and inspection appearance in the monitoring devices, signal transmitter with the signal receiver symmetry sets up the both sides of chip, and connect through the wire the chip, the inspection appearance is located the below of chip, the inspection appearance passes through the wire and connects the chip, cross the downthehole detection needle that is provided with of mud, it connects to detect the needle the inspection appearance.

5. the river channel construction section sediment monitoring and processing device of claim 1, characterized in that: the pipeline positioning plate comprises two symmetrically arranged clamping plates, positioning holes are arranged on the clamping plates,

The pipeline positioning plate and the box body are fixedly connected through the screw rod penetrating through the positioning hole, a limiting hole is formed between the two clamping plates, the extrusion pieces are symmetrically arranged in the limiting hole, counter bores are formed in the end faces of the clamping plates, adjusting screws are arranged in the counter bores, and the adjusting screws are connected with the extrusion pieces.

6. The river channel construction section sediment monitoring and processing device of claim 5, characterized in that: scales are arranged on the extruding sheet.

7. The construction method of the river channel construction section sediment monitoring and processing device according to claim 1, characterized by comprising the following steps:

1) Survey lofting

a. firstly, according to the actual situation of a construction section of a surveyed river channel, making a construction scheme through measurement data, determining machine tool equipment and workers according to the construction scheme, then setting an equipment storage area at a position 200-300 m away from the construction section of the river channel, making warning signs around the equipment storage area, then conveying the machine tool equipment to the equipment storage area, and performing debugging work on the machine tool equipment;

b. then, the excavator is driven to the edge of the construction section of the river channel, the slope of the construction section is cleaned and flapped tightly, then a reinforced area is defined on the slope by white lime powder according to the design sizes of the sediment treatment pool and the sediment recovery pool, then protection plates are laid according to the size of the reinforced area, the protection plates are laid downwards along the slope from the upper edge, and each protection plate is fixedly connected with the slope by a bolt until the whole reinforced area is laid;

2) excavation of foundation pit

a. After the protection plates are laid, determining the installation position of the bottom mud treatment pool according to the design requirements of a drawing, then, driving the excavator to a position 10-20 m away from the construction section, wherein the excavation length is 10-15 m, the excavation width is 8-12 m, the design depth is 1/2 of the distance from the top end of the construction section to the bottom of the river bed, excavating for 5 times, and the excavation depth of each time is 1/5 of the design depth until the final foundation pit is excavated;

b. installing support plates on the side wall of the foundation pit according to the design requirements of a drawing, installing a transverse positioning frame between two opposite support plates, fixing by using a fixing piece, enabling the transverse positioning frame to be installed to abut against the support plates and simultaneously enabling the central position of the foundation pit to form a cuboid cavity, enabling the size of the cuboid cavity to be matched with the size of the bottom mud treatment pool, then installing a vertical measuring instrument at the position, close to the side wall, of the bottom of the foundation pit, continuously observing the deformation condition of the support plates for 24 hours until the deformation of the support plates is within the design range, and then constructing the bottom mud treatment pool;

3) Construction of bottom mud treatment pool

a. Firstly, installing a mud grab bucket on a crane, enabling the mud grab bucket to be placed to the bottom along a foundation pit, excavating an installation pit at the bottom of the foundation pit, wherein the length and the width of the installation pit are matched with those of the foundation pit, and the depth of the installation pit is the distance from the bottom of the foundation pit to a river bed until the excavation of the installation pit is finished;

b. Cleaning the bottom surface and the side surface of the mounting pit, pouring with concrete, wherein the pouring thickness of the concrete is 10-20 cm, meanwhile, a round hole with the diameter of 60-90 cm is formed in the side surface close to the construction section, a wood stick is inserted into the round hole, the wood stick penetrates through the sludge layer, and a circular wood board is used for plugging the end surface of the round hole to form a bottom sludge treatment tank;

c. when the strength of the concrete meets the design requirement, determining the installation position of a sealing plate between the concrete on the side wall and the support plate, then installing a first motor on the top surface of the sealing plate, installing a stirring paddle on the bottom surface of the sealing plate, and then horizontally installing the sealing plate on the top surface of the bottom mud treatment pool;

d. Then installing a water inlet pipe with a water suction pump on a sealing plate, enabling the water outlet end of the water inlet pipe to be communicated with the sediment treatment tank, enabling the water inlet end of the water inlet pipe to be communicated with the river water body, then installing a sludge output pipe with the sludge suction pump on the sealing plate, enabling the distance between the inlet end of the sludge output pipe and the bottom surface of the sediment treatment tank to be less than 30-40 cm, sealing the outlet end of the sludge output pipe by using a sealing cover, and sealing the first motor;

e. after the bottom mud treatment tank is installed, removing a support plate and a transverse positioning frame in the foundation pit, backfilling clay into the foundation pit until the top surface of the backfilled clay is 6-8 m away from the top surface of the construction section, tamping the backfilled clay by using a tamper, fixing the outlet end of a sludge output pipe, and marking;

4) bottom mud recovery pool construction

Firstly, leveling and cleaning the bottom surface and the side wall of a bottom mud recovery pool, then pouring concrete, wherein the thickness of the poured concrete is 30-40 cm, and installing a net cover above the bottom mud recovery pool after the strength of the concrete meets the design requirement;

5) Arrangement of bottom mud monitoring boxes

a. Determining the installation positions of the bottom mud monitoring boxes in a mud layer at the bottom of a river bed according to the size of the construction section of the river channel and the position of the accumulated mud, inserting white plastic bags into the corresponding installation positions, keeping the distance between every two installation positions at 1-2 m, and distributing the installation positions in a rectangular shape;

b. then, forming a groove with the size matched with that of the bottom sediment monitoring box at each mounting position, and then placing the bottom sediment monitoring box with the support frame into the groove for fixing until the bottom sediment monitoring box at each mounting position is mounted;

c. Then, a through groove is formed between every two adjacent bottom mud monitoring boxes, a support plate is installed in the through groove, then a conveying pipe is installed in the support plate, the two ends of the conveying pipe are respectively connected with the connecting through holes of the bottom mud monitoring boxes until the designed conveying pipe is installed completely, and then the support plate is detached;

d. drilling a hole with the diameter of 60-90 cm along the position of the wooden stick by using a drilling machine, enabling the hole to be matched with the round hole on the bottom mud treatment pool, then installing a conveying pipe in the hole, enabling one end of the conveying pipe to be connected with the round hole on the bottom mud treatment pool, and enabling the other end of the conveying pipe to be connected with a bottom mud monitoring box close to the wooden stick;

e. finally, dismantling the protection plate on the slope surface of the construction end surface;

6) Sediment monitoring test run

The monitoring device on the sediment monitoring box is started at first, pollutants in the sludge at the bottom of the river channel construction section are detected through the monitoring device, when the content of the pollutants exceeds a set value of the monitoring device, the pressurizing sludge suction mechanism in the pressurizing sludge suction cavity starts to work, the sludge around the sediment monitoring box is sucked, the sludge enters the connecting hole through the sludge outlet hole and then is gathered into the conveying pipe, and finally the sludge enters the sediment treatment pool.