CN108360502B - In-situ uniaxial large-diameter pesticide injection stirring repair system and method for soil and underground water - Google Patents
In-situ uniaxial large-diameter pesticide injection stirring repair system and method for soil and underground water Download PDFInfo
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- CN108360502B CN108360502B CN201810088753.0A CN201810088753A CN108360502B CN 108360502 B CN108360502 B CN 108360502B CN 201810088753 A CN201810088753 A CN 201810088753A CN 108360502 B CN108360502 B CN 108360502B
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- 238000003756 stirring Methods 0.000 title claims abstract description 146
- 230000008439 repair process Effects 0.000 title claims abstract description 59
- 238000002347 injection Methods 0.000 title claims abstract description 57
- 239000007924 injection Substances 0.000 title claims abstract description 57
- 239000002689 soil Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000575 pesticide Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 20
- 239000003814 drug Substances 0.000 claims abstract description 56
- 238000005553 drilling Methods 0.000 claims description 48
- 238000010276 construction Methods 0.000 claims description 27
- 238000005086 pumping Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 8
- 238000010009 beating Methods 0.000 claims description 7
- 238000005067 remediation Methods 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 16
- 229940079593 drug Drugs 0.000 description 7
- 238000005507 spraying Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000012377 drug delivery Methods 0.000 description 6
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- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011066 ex-situ storage Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
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- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a soil and underground water in-situ single-shaft large-diameter pesticide injection stirring repair system and a method. The invention has the advantages that: the repair system is simple in structure and convenient to move, and can be done as soon as possible; the repair system stirs the soil and carries out intensive mixing with the medicament that erupts above that through stirring injection drill bit, and two spout two stir and can realize medicament and soil and water intensive mixing even, have avoided high pressure to spout the pressure soon and have been difficult to guarantee and high pressure spout the medicament along miscellaneous gap seepage flow that fills up, do not have the drawback with soil intensive mixing.
Description
Technical Field
The invention belongs to the technical field of in-situ remediation of soil and underground water, and particularly relates to an in-situ uniaxial large-diameter pesticide injection stirring remediation system and method for soil and underground water.
Background
The pollution of soil and underground water in China is increasingly severe, the pollution problem of industrial fields is prominent, and the restoration and treatment are urgently needed. The pollution site is common and wide in quantity, and the related pollutants comprise heavy metals, Volatile Organic Compounds (VOCs), semi-volatile organic compounds (SVOCs) and Total Petroleum Hydrocarbons (TPH). Particularly, VOCs and SVOCs have the characteristics of volatility, toxicity, concealment, accumulation, diversity and the like, are typical high-risk pollutants, are easy to cause huge long-term damage to the health and environmental quality of surrounding residents, and have huge social demands and market demands for developing restoration and treatment.
The soil and underground water restoration modes include in-situ restoration and ex-situ restoration, the ex-situ restoration has large pollution diffusion risk, secondary pollution is caused, the requirement on a construction site is high, and some polluted sites in economically developed areas do not have the conditions. Ectopic remediation may involve foundation pit dewatering, excavation and supporting under the condition of deep pollution depth, and particularly in the eastern soft soil region of China, the engineering implementation risk is high. And the in-situ remediation is completed under the condition that the soil and the underground water are not carried, and has obvious advantages under the conditions of shortage of available field area and the like.
The chemical oxidation-reduction technology is proved to be capable of achieving a good removing effect on pollutants in water and soil, the chemical oxidation-reduction and the in-situ restoration mode are combined, and the market has corresponding technologies: geoprobe direct pressure type high pressure injection, well construction injection, high pressure rotary jet technology and the like. However, these techniques also have some problems, such as difficulty in adapting to a miscellaneous fill site, high well construction cost, complex operation, difficulty in ensuring stirring uniformity, etc., and ensuring sufficient mixing of water, soil and chemicals, simplifying construction process, and improving construction efficiency are key points for success of this technique.
The existing in-situ stirring technology is more applied to the waterproof curtain and local reinforcement of foundation pit engineering, and the permeability of the waterproof curtain can reach 10 by spraying cement slurry to construct the waterproof curtain-7cm/s, the stirring uniformity can be ensured.
Disclosure of Invention
The invention aims to provide a soil and underground water in-situ single-shaft large-diameter pesticide injection stirring repair system and a method according to the defects of the prior art, the pesticide injection stirring repair system realizes free movement in four directions through the arrangement of a hydraulic walking type chassis, and meanwhile, the rapid pesticide injection stirring repair in a polluted area is realized through a fixed-point sleeving construction mode.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a soil and groundwater normal position unipolar major diameter injection stirring repair system, its characterized in that injection stirring repair system is including the churning rig that has hydraulic pressure walking chassis and drilling rod, the tip has the stirring injector head under the drilling rod, hydraulic pressure walking chassis includes horizontal walking, lower chassis and upper chassis from bottom to top in proper order, horizontal walking with slidable contact is horizontal between the lower chassis, lower chassis with slidable contact is vertical between the upper chassis.
And the four corner positions of the upper underframe are respectively provided with a hydraulic support leg.
And a transverse moving oil cylinder is arranged between the transverse walking track and the lower underframe so as to realize the slidable contact of the transverse walking track and the lower underframe in the transverse direction.
And a longitudinal moving oil cylinder is arranged between the lower bottom frame and the upper bottom frame so as to realize slidable contact of the lower bottom frame and the upper bottom frame in the longitudinal direction.
A medicine conveying pipe cavity is arranged in the drill rod, one end of the medicine conveying pipe cavity is communicated with the medicine storage pumping system, and the other end of the medicine conveying pipe cavity is communicated with the medicine nozzle on the stirring jet drill bit.
The medicament storage and pumping system comprises at least one group of dispensing barrels, each group of dispensing barrels are communicated with a medicament injection pump through a medicament conveying branch pipe with a valve, and the medicament injection pump is communicated with the medicament conveying pipe cavity through a medicament conveying main pipe.
The working method of the in-situ single-shaft large-diameter pesticide injection stirring repair system for the soil and the underground water is characterized in that the working method utilizes a stirring drilling machine to carry out fixed-point casing and drilling construction, and comprises the following steps: taking four stirring repair points which are distributed in a rectangular shape at each fixed point as a group of sleeving and driving objects, moving the stirring drilling machine to the fixed point to be constructed, aligning a stirring jet drill bit on the stirring drilling machine to the first stirring repair point to perform injection stirring repair, and then driving the stirring drilling machine by using a hydraulic walking type chassis to sequentially complete injection stirring repair of the rest stirring repair points in the group of sleeving and driving objects in a clockwise direction; and the steps are repeated in this way, and the medicine injection, stirring and repairing of the sleeving objects are completed in sequence.
The method for driving the stirring drilling machine to longitudinally move by the hydraulic walking type underframe comprises the following steps: (1) retracting and lifting the hydraulic support legs on the hydraulic walking type underframe to enable the transverse walking on the hydraulic walking type underframe to support the weight of the whole stirring drilling machine; (2) in the hydraulic walking type underframe, a longitudinal moving oil cylinder between an upper underframe and a lower underframe drives the upper underframe to longitudinally move; (3) after the longitudinal movement is finished, the hydraulic support legs are lowered to be supported on the ground and the stirring drilling machine is lifted, so that the longitudinal movement oil cylinders are contracted to enable the lower base frame to be reset to the position of the upper base frame; (4) and contracting the hydraulic support leg to enable the transverse walking track and the hydraulic support leg to be in contact with the ground.
The method for driving the stirring drilling machine to transversely move by the hydraulic walking type underframe comprises the following steps: (1) retracting and lifting the hydraulic support legs on the hydraulic walking type underframe to enable the transverse walking on the hydraulic walking type underframe to support the weight of the whole stirring drilling machine; (2) in the hydraulic walking type underframe, a transverse moving oil cylinder between the transverse walking and the lower underframe drives the lower underframe to transversely move; (3) after the transverse movement is finished, the hydraulic support legs are lowered to be supported on the ground, the stirring drilling machine is lifted, and the transverse moving oil cylinder is contracted to reset the transverse walking to the position of the lower underframe; (4) and contracting the hydraulic support leg to enable the transverse walking track and the hydraulic support leg to be in contact with the ground.
The working method of the in-situ single-shaft large-diameter pesticide injection stirring repair system for the soil and the underground water is characterized in that a stirring drilling machine is used for carrying out row-type repair construction, wherein the row-type repair construction refers to the following steps: and (4) injecting the chemicals one by one, stirring and repairing the stirring and repairing points on each row by using a stirring drilling machine.
The invention has the advantages that:
(1) the repair system equipment is simple in structure and convenient to move, and can be done as soon as possible; the construction requirement can be met by 60kW of three-phase power, and no pollution is generated on site; the repair cost is lower than that of multiphase extraction, heat treatment and the like;
(2) the repairing system crushes the soil by the stirring and spraying drill bit and fully mixes the crushed soil with the medicament sprayed on the stirring and spraying drill bit, the medicament can be fully and uniformly mixed with water and soil by spraying and stirring twice, the defects that the high-pressure rotary spraying pressure is difficult to ensure and the high-pressure sprayed medicament seeps along the gap of the miscellaneous fill soil and is not fully mixed with the soil are avoided, and the defect of the high-pressure rotary spraying is also the reason that the stirring construction is more widely applied in the foundation pit engineering construction than the high-pressure rotary spraying;
(3) if the medicament with low solubility is injected by preparing the water aqua, a large amount of water can be injected, the medicament does not flood through slotting construction, the safety of personnel is ensured, steel plates are used for assisting in the construction process, the stress area is increased under the action of the steel plates by machine support, the safety of the machine is ensured, and the machine does not topple over;
(4) the dispensing barrels can be arranged in a plurality of numbers, so that multiple medicaments and a plurality of barrels of medicaments are stirred simultaneously, the construction is uninterrupted, and the effective working time is increased;
(5) the pumping pressure requirement of the injection pump is low, and the damage risk of the medicament to people is reduced;
(6) the stirring drilling machine can solve the pollution problem of filling soil containing large stones.
Drawings
FIG. 1 is a schematic structural view of a single-shaft large-diameter injection stirring repair system according to the present invention;
FIG. 2 is a schematic view of the construction of the stirring jet drill bit according to the present invention;
FIG. 3 is a cross-sectional view of an agitating jet drill bit of the present invention;
FIG. 4 is a cross-sectional view of a drill rod of the present invention;
FIG. 5 is a schematic diagram of the longitudinal movement of the single-shaft large-diameter injection stirring repair system of the present invention;
FIG. 6 is a schematic diagram of the transverse movement of the single-shaft large-diameter injection stirring repair system according to the present invention;
FIG. 7 is a schematic diagram of a fixed-point casing-beating construction performed by the single-shaft large-diameter injection stirring repair system of the present invention;
FIG. 8 is a schematic diagram of a row-type repair construction performed by the single-shaft large-diameter injection stirring repair system of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:
referring to fig. 1-8, the symbols in the drawings are: the device comprises an upper underframe 1, a lower underframe 2, hydraulic support legs 3, a transverse walking track 4, a vertical frame 5, an A-shaped frame 6, a support rod 7, a main motor 8, an operating platform 9, a driving shaft 10, a rotary table 11, a drill rod 12, a stirring and jetting drill bit 13, a main medicine injection pipe 14, a medicine injection pump 15, a medicine dispensing barrel 16, a stirrer 17, a medicine conveying pipe cavity 18, a soil crushing reinforcing steel bar and steel plate 19, a drill bit end part 20, a medicine nozzle 21, a valve 22, a medicine conveying branch pipe 23, a stirring and repairing point a, a stirring and repairing point b, a stirring and repairing point c and a stirring and repairing point d.
As shown in fig. 1-7, this embodiment specifically relates to a soil and groundwater in-situ uniaxial large-diameter injection stirring repair system and method, the main body of the injection stirring repair system is a stirring drill, the stirring drill includes a hydraulic walking chassis, a stand 5 vertically disposed on the hydraulic walking chassis, and a drill rod 12 vertically disposed along the stand 5, the lower end of the drill rod 12 is a stirring jet drill 13, and the stirring jet drill 13 realizes in-situ injection stirring repair under the pumping of a chemical storage pumping system.
As shown in fig. 1, the hydraulic walking type chassis comprises a transverse walking 4, a lower chassis 2 and an upper chassis 1 which are sequentially arranged from bottom to top, and hydraulic legs 3 are respectively arranged at four corner positions of the upper chassis 1, and the hydraulic legs 3 can realize the integral lifting or descending of the stirring drilling machine; a transverse moving oil cylinder (not shown in the figure and omitted) is arranged between the transverse walking track 4 and the lower frame 2, so that the transverse sliding contact between the transverse walking track and the lower frame can be realized; a longitudinal moving oil cylinder (not shown in the figure and omitted) is arranged between the lower chassis 2 and the upper chassis 1, so that the two can be in longitudinal slidable contact; that is to say, through the setting of sideslip hydro-cylinder and vertical movement hydro-cylinder thereby realize the free removal of hydraulic pressure walking chassis in four directions. The hydraulic support leg 3, the transverse moving oil cylinder and the longitudinal moving oil cylinder are all driven and controlled by a hydraulic system, the hydraulic system adopts an open oil way and adopts a gear oil pump, and the oil cylinder of the hydraulic support leg 3 is provided with a bidirectional hydraulic lock.
As shown in fig. 1 to 4, the stand 5 is vertically provided on the upper frame 1, and the stand 5 is diagonally supported by an a-frame 6 and a stay 7. A drill rod 12 capable of sinking or lifting is vertically arranged along the vertical frame 5, the drill rod 12 is driven by a power mechanism and comprises a main motor 8, a driving shaft 10 and a rotary table 11, the main motor 8 drives the driving shaft 10 to rotate at a high speed, the rotary table 11 drives the drill rod 12 and a stirring and jetting drill bit 13 at the front end of the drill rod to rotate at a high speed, and meanwhile, the drill rod 12 is driven by an upper chain wheel and a lower chain wheel to sink or lift. The forward rotation speed of the drill rod 12 is 14.6-107.4r/min, the reverse rotation speed is 17.2-126.4r/min, the lifting speed is 0.277-2.025m/min, and the drilling speed is 0.235-1.720 m/min.
As shown in fig. 1-4, the drill rod 12 is a square drill rod, a drug delivery tube cavity 18 is arranged in the square drill rod 12, the upper end of the drug delivery tube cavity 18 is communicated with a drug storage pumping system, the lower end of the drug delivery tube cavity is communicated with the stirring and jetting drill bit 13, specifically, a plurality of drug nozzles 21 are distributed on the tube wall of the stirring and jetting drill bit 13, the lower end of the drug delivery tube cavity 18 is communicated with the drug nozzles 21, and the drug in the drug delivery tube cavity 18 can be jetted outwards through the drug nozzles 21; the stirring diameter of the stirring jet drill bit 13 is 0.8-1.2m, the main body of the stirring jet drill bit is a pipe body, the front end part of the pipe body is a conical drill bit end part 20, soil crushing reinforcing steel bars and steel plates 19 are arranged on the wall surface of the pipe body, soil is crushed by the soil crushing reinforcing steel bars, the steel plates 19 and the drill bit end part 20 in the concrete drilling process, and a medicament jet 21 sprays medicament flow outwards, so that medicament injection and stirring are realized.
As shown in fig. 1-4, the medicament storage and pumping system includes two sets of dispensing barrels 16, wherein a stirrer 17 for uniformly and rapidly stirring medicament is disposed in each dispensing barrel 16, each dispensing barrel 16 is simultaneously connected to a medicament injection pump 15 through a medicament delivery branch pipe 23 having a valve 22, and the medicament injection pump 15 is connected to an upper port of a medicament delivery pipe cavity 18 in a drill pipe 12 through a medicament injection main pipe 14, so that medicament is pumped into the medicament delivery pipe cavity 18 under pressure. The delivery lift of the medicine injection pump 15 is more than or equal to 20m, the medicine injection pressure is 1-2MPa, and the medicine injection flow is 0.4-2m3H is used as the reference value. In the actual repair process, the opening and closing of the valves 22 in the drug delivery branch pipes 23 are controlled, so that the drug solution to be pumped and output can be freely switched.
As shown in fig. 1, an operation table 9 is further provided on the upper chassis 1, and the operation table 9 can control the hydraulic system, the power mechanism, and the drug storage and pumping system.
As shown in fig. 1 to 7, the working method of the in-situ uniaxial large-diameter pesticide injection stirring repair system for soil and groundwater in the embodiment includes the following steps:
(step one) grooving and spot placing:
GPS measures and puts the restoration boundary, the excavator becomes a straight groove with the groove depth of 30-50cm, the distance of the distribution points in the groove ensures that the stirring area fully covers the restoration area, and steel plates are laid on two sides of the groove for the stirring drill to walk;
(step two) fixed-point sleeving and beating in-situ stirring repair:
fixed point casing driving construction is carried out by using a stirring drilling machine, wherein the fixed point casing driving refers to a group of casing driving objects which are four stirring repairing points a, b, c and d which are distributed in a rectangular shape at each fixed point, and as shown in fig. 7, the specific steps are as follows: driving a stirring drilling machine to move to a fixed point to be constructed through a hydraulic walking type chassis, and aligning a stirring jet drill bit 13 on the stirring drilling machine to a stirring repairing point a for injection stirring repairing;
after the injection stirring repair of the stirring repair point a is finished, the stirring drilling machine moves longitudinally by using the hydraulic walking type chassis, so that a stirring jet drill bit 13 on the stirring drilling machine is aligned with the stirring repair point b to perform injection stirring repair;
after the injection stirring repair of the stirring repair point b is finished, the stirring drilling machine moves transversely by using the hydraulic walking type chassis, so that a stirring jet drill bit 13 on the stirring drilling machine is aligned with the stirring repair point c to perform injection stirring repair;
after the injection stirring repair of the stirring repair point c is finished, the stirring drilling machine moves longitudinally by using the hydraulic walking type chassis, so that a stirring jet drill bit 13 on the stirring drilling machine is aligned with the stirring repair point d to perform injection stirring repair;
after the first group of sleeving and beating objects are finished, the stirring drilling machine moves to the next group of sleeving and beating objects, and the medicine is sequentially injected and stirred in the clockwise construction sequence to repair all the medicine injection and stirring points in the group; the steps are repeated in this way, and the medicine injection, stirring and repairing of the group of the sleeving objects are completed in sequence.
It should be noted that the fixed-point casing and driving construction method adopted in the embodiment makes full use of the advantage of the large transverse movement/longitudinal movement distance of the stirring drilling machine, and can effectively improve the construction speed and efficiency of each stirring repair point.
(step three) monitoring the stirring uniformity and the medicament reaction:
after the single stirring repair point is repaired, soil samples are collected at the pile core and the pile periphery by using a Luoyang shovel, and the water content and the pH value are measured to judge the stirring uniformity; after the maintenance period is reached, a Luoyang shovel and a static exploration water taking device are used for sampling soil samples and underground water samples to detect the concentration of pollutants; and analyzing the data, feeding back and adjusting the construction process in time, and optimizing the construction parameters.
As shown in fig. 5, the method for the hydraulic walking type chassis-driven mixer drill to move longitudinally in this embodiment includes:
(1) each hydraulic support leg 3 on the upper lifting underframe 1 is contracted to be lifted away from the ground, so that the transverse walking track 4 supports the weight of the whole stirring drilling machine;
(2) then, a longitudinal moving oil cylinder between the upper chassis 1 and the lower chassis 2 is controlled to drive the upper chassis 1 to longitudinally move;
(3) after the longitudinal movement is finished, descending each hydraulic support leg 3 to enable the hydraulic support legs to be supported on the ground and lifting the stirring drilling machine until the transverse walking track 4 is separated from the ground, and controlling a longitudinal movement oil cylinder between the upper underframe 1 and the lower underframe 2 to contract so as to enable the lower underframe 2 to reset to a position corresponding to the upper underframe 1;
(4) and contracting each hydraulic support leg 3 to enable the transverse walking track 4 and the hydraulic support legs 3 to be in contact with the ground.
In addition, as shown in fig. 6, the method for the hydraulic walking type chassis-driven stirring drilling machine to perform the traverse movement in the embodiment includes:
(1) each hydraulic support leg 3 on the upper lifting underframe 1 is contracted to be lifted away from the ground, so that the transverse walking track 4 supports the weight of the whole stirring drilling machine;
(2) then, a transverse moving oil cylinder between the transverse walking track 4 and the lower chassis 2 is controlled to drive the lower chassis 2 to transversely move;
(3) after the transverse movement is finished, descending each hydraulic support leg 3 to enable the hydraulic support legs to be supported on the ground and lifting the stirring drilling machine until the transverse walking shoe 4 is separated from the ground, and controlling a transverse moving oil cylinder between the transverse walking shoe 4 and the lower frame 2 to contract so as to enable the transverse walking shoe 4 to reset to the position corresponding to the lower frame 2;
(4) and contracting each hydraulic support leg 3 to enable the transverse walking track 4 and the hydraulic support legs 3 to be in contact with the ground.
As shown in fig. 8, this embodiment specifically relates to a working method of an in-situ uniaxial large-diameter pesticide injection stirring repair system for soil and groundwater, which is different from the working method in embodiment 1 in that a stirring drilling machine is used to perform gang repair construction, where the gang repair construction refers to: and (4) injecting the chemicals one by one, stirring and repairing the stirring and repairing points on each row by using a stirring drilling machine.
Claims (3)
1. A working method of a soil and underground water in-situ single-shaft large-diameter pesticide injection stirring repair system is characterized in that the pesticide injection stirring repair system comprises a stirring drilling machine with a hydraulic walking type underframe and a drill rod, wherein a stirring jet drill bit is arranged at the lower end part of the drill rod, the hydraulic walking type underframe sequentially comprises a transverse walking, a lower underframe and an upper underframe from bottom to top, the transverse walking is in slidable contact with the lower underframe in the transverse direction, and the lower underframe is in slidable contact with the upper underframe in the longitudinal direction; the four corner positions of the upper underframe are respectively provided with a hydraulic support leg; a transverse moving oil cylinder is arranged between the transverse walking track and the lower underframe so as to realize the slidable contact of the transverse walking track and the lower underframe in the transverse direction; a longitudinal moving oil cylinder is arranged between the lower bottom frame and the upper bottom frame so as to realize slidable contact of the lower bottom frame and the upper bottom frame in the longitudinal direction;
the working method utilizes the stirring drilling machine to carry out fixed-point casing beating construction and comprises the following steps: taking four stirring repair points which are distributed in a rectangular shape at each fixed point as a group of sleeving and beating objects, moving the stirring drilling machine to the fixed point to be constructed, aligning the stirring jet drill bit on the stirring drilling machine to the first stirring repair point to perform injection stirring repair, and then driving the stirring drilling machine by using the hydraulic walking type chassis to sequentially complete injection stirring repair of the rest stirring repair points in the group of sleeving and beating objects along the clockwise direction; the steps are repeated in this way, and the medicine injection, stirring and repairing of each group of the sleeving objects are completed in sequence;
the method for driving the stirring drilling machine to longitudinally move by the hydraulic walking type underframe comprises the following steps: (1) retracting and lifting the hydraulic support leg on the hydraulic walking type underframe to enable the transverse walking on the hydraulic walking type underframe to support the weight of the whole stirring drilling machine; (2) in the hydraulic walking type underframe, the longitudinal moving oil cylinder between the upper underframe and the lower underframe drives the upper underframe to longitudinally move; (3) after the longitudinal movement is finished, the hydraulic support legs are lowered to be supported on the ground and the stirring drilling machine is lifted, so that the longitudinal movement oil cylinders are contracted to enable the lower base frame to be reset to the position of the upper base frame; (4) retracting the hydraulic support leg to enable the transverse walking track and the hydraulic support leg to be in contact with the ground;
the method for driving the stirring drilling machine to transversely move by the hydraulic walking type underframe comprises the following steps: (1) retracting and lifting the hydraulic support leg on the hydraulic walking type underframe to enable the transverse walking on the hydraulic walking type underframe to support the weight of the whole stirring drilling machine; (2) in the hydraulic walking type underframe, a transverse moving oil cylinder between the transverse walking and the lower underframe drives the lower underframe to transversely move; (3) after the transverse movement is finished, the hydraulic support legs are lowered to be supported on the ground, the stirring drilling machine is lifted, and the transverse moving oil cylinder is contracted to reset the transverse walking to the position of the lower underframe; (4) and contracting the hydraulic support leg to enable the transverse walking track and the hydraulic support leg to be in contact with the ground.
2. The working method of the in-situ single-shaft large-diameter pesticide injection stirring repair system for the soil and the underground water as claimed in claim 1, wherein a pesticide delivery pipe cavity is arranged in the drill rod, one end of the pesticide delivery pipe cavity is communicated with the pesticide storage pumping system, and the other end of the pesticide delivery pipe cavity is communicated with the pesticide nozzle on the stirring jet drill bit.
3. The working method of the in-situ uniaxial large-diameter pesticide injection stirring remediation system for soil and underground water according to claim 2, wherein the pesticide storage and pumping system comprises at least one group of pesticide dispensing barrels, each group of pesticide dispensing barrels are respectively communicated with a pesticide injection pump through a pesticide conveying branch pipe with a valve, and the pesticide injection pump is communicated with the pesticide conveying pipe cavity through a pesticide conveying main pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088753.0A CN108360502B (en) | 2018-01-30 | 2018-01-30 | In-situ uniaxial large-diameter pesticide injection stirring repair system and method for soil and underground water |
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|---|---|---|---|
| CN201810088753.0A CN108360502B (en) | 2018-01-30 | 2018-01-30 | In-situ uniaxial large-diameter pesticide injection stirring repair system and method for soil and underground water |
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| CN108360502B true CN108360502B (en) | 2020-11-27 |
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| CN111056718B (en) * | 2019-12-09 | 2022-08-02 | 上海大学 | Intelligent dosing system for sludge in-situ treatment |
| CN113020244A (en) * | 2021-03-16 | 2021-06-25 | 中国建筑第四工程局有限公司 | High-pressure rotary spraying device for in-situ remediation of contaminated soil and construction method |
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| CN104815844A (en) * | 2015-04-03 | 2015-08-05 | 北京建工环境修复股份有限公司 | Chromium contamination in-situ remediation method |
| CN204984251U (en) * | 2015-07-27 | 2016-01-20 | 武汉市天宝工程机械有限责任公司 | Multi -functional stirring of especially big diameter stake machine with torsion compensation arrangement |
| CN106498940A (en) * | 2016-11-18 | 2017-03-15 | 湖南凯天重金属污染治理工程有限公司 | A kind of deep-mixed pile equipment and its construction method for soil remediation |
| CN106825024B (en) * | 2016-12-16 | 2022-11-11 | 北京沃太斯环保科技发展有限公司 | Portable soil prosthetic devices |
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