CN205719868U - Contaminated soil and subsoil water inject in situ repairs the pilot system that dilation angle determines - Google Patents

Abstract

This utility model provides a kind of contaminated soil and subsoil water injects in situ and repairs the tracer test system that dilation angle determines.This utility model includes injecting in situ layouts and conducting-hole unit, tracer and repair medicament injecting unit and groundwater tracer monitoring and quick detector unit.Steel screen casing it is provided with in described steel thimble, machinery bladder pump it is provided with in steel screen casing, the lower end of steel screen casing is provided with deserted drill bit, air pocket pump is machinery bladder pump supply, machinery bladder water pump outlet pipe is connected with the water inlet of filter, and water quality monitor is connected with filter, and filter is connected with beaker, it is respectively equipped with bromine electrode, temperature electrode and reference electrode, bromine electrode, temperature electrode and reference electrode in beaker to be all connected with pH/ ion concentration fast detector by universal electrode frame.This utility model be applicable to the injection testing in situ of soil and subsoil water and repairing construction, the determination of dilation angle and the monitoring of in-situ immobilization medicament diffusion effect and inspection.

Description

Contaminated soil and subsoil water inject in situ repairs the pilot system that dilation angle determines

Technical field

This utility model relates to a kind of contaminated soil and subsoil water injects in situ and repairs the pilot system that dilation angle determines, Belong to contaminated soil and the design of groundwater remediation system and repair monitoring systems technology field.

Background technology

Soil underground water pollution and reparation receive attention in recent years, and many subsoil water based technique for in-situ remediation, as permeable Property reaction wall (PRB), Pump-and-Treat, the technology such as in-situ chemical reparation, in situ microorganism remediation has obtained engineering at home should With.Injection technique is relatively low relative to stirring technique energy consumption in situ, thus application is wider, especially groundwater remediation field, aqueous The good permeability of layer is conducive to the interpolation repairing medicament that water solublity is strong.It is important former that based technique for in-situ remediation is favored Cause, be because it can solve deep soil and underground water pollution problem, it is to avoid deep pit digging, precipitation, secondary pollution problems, Safety and economy are also greatly improved.

Repair the effective dilation angle of medicament determination and optimize design be inject in situ and repair (in situ chemical oxidation/reduction, Microorganism remediation in situ) in top priority, effective dilation angle (R₀) it is one of the most critical technical parameter of engineering design, if Meter the most rationally directly affects the success or failure of recovery project.The excessive restoring area of design load can not be completely covered and cause reparation occur " dead angle ", design load is less than normal to be caused and returns that slurry is serious and machine cost is greatly increased.

The determination of ground slip casting field (such as rotary churning pile) radius, typically surveys or uses rig to take by on-the-spot test excavation The technical testings such as core method, static sounding, ultrasonic Detection Method.Owing to it forms solidification pile body, relatively easy measurement obtains more Radius data accurately.But the method is dfficult to apply in the dilation angle test repairing medicament based on water solublity.

Inject currently also many employing empirical method design medicament dilation angle in well in-situ immobilization technique, for hydrogeology bar Part complexity contaminated site does not determines effective dilation angle parameter by scene test, has bigger blindness.Injection well itself For the bad adaptability of argillic horizon, also limit its application in the place that clay is master, on the low side being difficult to of injection pressure is applied The methods such as observational method.

Application No. 201110314616.2 " high-pressure rotary jet grouting pile diameter based on circular free turbulent jet theory determines Method " Chinese invention patent, disclose the determination method of firming body radius of a kind of high-pressure rotary-spray strengthening of foundation construction, according to The critical slope langth speed of soil layer, the cement mortar flow velocity of nozzle exit and the decay coefficient along jet length, determine solidification pile body Diameter.The method relatively empirical method improves to some extent, but still repairs the infiltration of medicament under the conditions of cannot solving to inject high-pressure injection in situ Dilation angle problem.

, there is cloth in " in-situ remediation method of a kind of pollution of chromium " Chinese invention patent of Application No. 201510159423.2 Hole mode is not according to the flow effect of subsoil water, overlay region in the soil layer infiltrative difference consideration reparation medicament effecting reaction cycle The excessive shortcoming such as uneconomical in territory.

Utilizing Geoprobe platform and depthkeeping sampler thereof to carry out direct-push depthkeeping fast sampling, technology maturation is stable, Caliber is little, recycling after each accessory is the most flushable, low cost, and little to ground disturbance, sampling efficiency, resolution are high, are conducive to Tracer data capture really and accurately.And tradition hollow screw bores or prefabricated monitoring well is set up, the longest, cost is high, pipe Footpath is big, needs filler operation, relatively big to ground disturbance, is unfavorable for obtaining tracer data capture really and accurately.

Utilizing machinery bladder pumping sample, manual operation, low cost, the pump housing carries screen casing secondary filter, and disturbance is little, easily obtains Representative sample；Small-sized rustless steel Beile's pipe samples, and disturbance is relatively big, and without secondary sieving, sample is the most muddy；Well-flushing at a slow speed Sampling, system complex, need driven by power, install loaded down with trivial details, cost height is uneconomical.

The most several soil and the in-situ immobilization of subsoil water, monitoring and detection technique, its application is largely by scene The restriction of the factors such as site condition, pollutant kind so that the scope of application of this type of technology, application cost, control and repair In place of multiple efficiency etc. still has many to be modified and strengthening, injection mode, the addition manner of tracer, subsoil water are fast especially in situ Slowdown monitoring and sampling, the problem such as field quick detection of tracer.

Utility model content

The purpose of this utility model is to solve existing original position injection repair system design Chinese medicine in soil and underground Effective dilation angle in water environment determines a difficult problem, for mostly determining medicament effective dilation angle accuracy by empirical method at present Poor problem.And then provide a kind of contaminated soil and subsoil water to inject the pilot system that reparation dilation angle determines in situ.

The purpose of this utility model is achieved through the following technical solutions:

A kind of contaminated soil and subsoil water inject in situ repairs the pilot system that dilation angle determines, including: inject in situ Layout and conducting-hole unit, tracer and repair medicament injecting unit and groundwater tracer monitoring and quick detector unit；

The injection of described original position is layouted and conducting-hole unit includes that walking draws drilling machine, the first screw-rod air compressor, the first pressure Power table, the first valve, pneumatic tube, drilling rod and air latent drift drilling tool, described walking draws and is provided with drilling rod on drilling machine, drilling rod Lower end air latent drift drilling tool is installed, one end of pneumatic tube is connected with the outlet of the first screw-rod air compressor, pneumatic tube The other end be connected with drilling rod, pneumatic tube is provided with the first Pressure gauge, pneumatic tube is serially connected with the first valve；

Described tracer and reparation medicament injecting unit include jet drill rig, pharmacy jar, the second valve, high-pressure injection pump, Second Pressure gauge, the 3rd valve, the second screw-rod air compressor, the 3rd Pressure gauge and the 4th valve, entering of described high-pressure injection pump Mouth end is connected with pharmacy jar by pipeline, and the pipeline between high-pressure injection pump and pharmacy jar is provided with the second valve, high pressure injection The port of export of stock pump is connected with jet drill rig by pipeline, and the pipeline between high-pressure injection pump and jet drill rig is provided with second Pressure gauge and the 3rd valve, the second screw-rod air compressor is connected with jet drill rig by pipeline, the second screw-rod air compressor and Pipeline between jet drill rig is provided with the 3rd Pressure gauge and the 4th valve；

The monitoring of described groundwater tracer and quickly detector unit include Geoprobe rig, steel thimble, steel screen casing, machinery Bladder pump, deserted drill bit, air pocket pump, water quality monitor, filter, bromine electrode, temperature electrode, reference electrode, beaker, universal Arc-spark stand and pH/ ion fast detector, the bottom of described Geoprobe rig is provided with steel thimble, is provided with steel sieve in steel thimble Pipe, is provided with machinery bladder pump in steel screen casing, the lower end of steel screen casing is provided with deserted drill bit, and air pocket pump is machinery bladder pump supply, Machinery bladder water pump outlet pipe is connected with the water inlet of filter, and water quality monitor is connected with filter, filter and beaker Being connected, be respectively equipped with bromine electrode, temperature electrode and reference electrode in beaker, bromine electrode, temperature electrode and reference electrode are the most logical Cross universal electrode frame to be connected with pH/ ion fast detector.

The beneficial effects of the utility model are:

One, diffusion effect inspection after injecting in situ, the sampling of subsoil water have employed direct-push depthkeeping fast sampling, and technology becomes Ripe stable, caliber is little, and low cost is little to ground disturbance, and sampling efficiency, resolution are high, is conducive to tracer number really and accurately According to capture.And tradition hollow screw bores or prefabricated monitoring well is set up, the longest, cost is high, and caliber is big, needs filler operation, right Ground disturbance is relatively big, is unfavorable for obtaining tracer data capture really and accurately.Utilization machinery bladder pumping sample, manual operation, Low cost, the pump housing carries screen casing secondary filter, and disturbance is little, easily obtains representative sample；And small-sized rustless steel Beile pipe Sampling, disturbance is relatively big, and without secondary sieving, sample is the most muddy；Well-flushing sampling, system complex, need driven by power, install numerous at a slow speed Trivial, cost height is uneconomical.

Two, contaminated soil of the present utility model and subsoil water inject in situ and repair the tracer test system that dilation angle determines Uniting, its decanting point is layouted and draws hole, repairs medicament and tracer high-pressure injection system, groundwater tracer monitoring and quick depthkeeping Sampler, subsoil water bromide ion fast monitored and detector unit constitute perfect original position injection process and repair medicament diffusion feelings The test of condition and monitoring system.Relative to the empirical method of the dilation angle of the processes such as shaft building injection, jet grouting pile construction or on-the-spot real Survey method, this utility model be have reasonable in design, equipment is relatively easy, easy to operate feasible, be easily maintained, running parameter The soil being easily controlled and subsoil water in-situ immobilization monitoring system, can be applicable to in-situ immobilization engineering and repair the diffusion effect of medicament Monitoring.

Accompanying drawing explanation

Fig. 1 be the original position of contaminated soil and subsoil water inject repair tracer test system schematic (inject in situ layout and Conducting-hole unit).

Fig. 2 is that the original position of contaminated soil and subsoil water injects reparation tracer test system schematic (tracer and reparation medicine Agent injecting unit).

Fig. 3 is that the original position of contaminated soil and subsoil water injects reparation tracer test system schematic (groundwater tracer prison Survey and quick detector unit).

Fig. 4 is enlarged drawing at the A of Fig. 3.

Fig. 5 layouts schematic diagram in situ decanting point and tracer monitoring point.

Reference in figure: 1 is miscellaneous fill layer, 2 is argillic horizon, and 3 is layer of sand, and 4 is argillic horizon, and 5 is groundwater level Buried depth, 6 draw drilling machine for walking, and 7 is air intlet, and 8 is the first screw-rod air compressor, and 9 is the first Pressure gauge, and 10 is first Valve, 11 is pneumatic tube, and 12 is drilling rod, and 13 is air latent drift drilling tool, and 14 for drawing hole section, and 15 is jet drill rig, and 16 for repairing Medicament, 17 is tracer (sodium bromide), and 18 is pharmacy jar, and 19 is the second valve, and 20 is high-pressure injection pump, and 21 is the second pressure Table, 22 is the 3rd valve, and 23 is fresh air inlet, and 24 is the second screw-rod air compressor, and 25 is the 3rd Pressure gauge, and 26 is the 4th Valve, 27 is churning section (inject and repair medicament and tracer), and 28 is Geoprobe rig, and 29 is steel thimble, and 30 is steel screen casing, 31 is machinery bladder pump (drawing water), and 32 is deserted drill bit, and 33 is air pocket pump (supply), and 34 is water quality monitor, and 35 for filtering Device, 36 is bromine electrode, and 37 is temperature electrode, and 38 is reference electrode, and 39 is beaker (groundwater sample to be measured), and 40 is universal electrode Frame, 41 is pH/ ion concentration fast detector, and 42 is design decanting point medicament dilation angle (R), and 43 is that decanting point (bores in situ Hole) center, 44 is groundwater tracer monitoring point (C1～C4, C4 are background dot), and 45 is Groundwater Flow direction, and R is medicament Dilation angle, L is pitch-row (vertical direction of groundwater flow), and B is array pitch (along Groundwater Flow direction).

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail: the present embodiment is with this utility model skill Implement under premised on art scheme, give detailed embodiment, but protection domain of the present utility model is not limited to following Embodiment.

As shown in Figure 1 to 4, a kind of contaminated soil and subsoil water involved by the present embodiment inject in situ and repair diffusion half The pilot system that footpath determines, including: inject in situ and layout and conducting-hole unit, tracer and repair medicament injecting unit and subsoil water Tracer monitoring and quickly detector unit；

The injection of described original position is layouted and conducting-hole unit includes that walking draws drilling machine the 6, first screw-rod air compressor 8, first Pressure gauge the 9, first valve 10, pneumatic tube 11, drilling rod 12 and air latent drift drilling tool 13, described walking draws pacifies on drilling machine 6 Equipped with drilling rod 12, the lower end of drilling rod 12 is provided with air latent drift drilling tool 13, one end of pneumatic tube 11 and the first screw pneumatics The outlet of machine 8 is connected, and the other end of pneumatic tube 11 is connected with drilling rod 12, and pneumatic tube 11 is provided with the first Pressure gauge 9, gas The first valve 10 it is serially connected with in pressure pipe 11；

Described tracer and reparation medicament injecting unit include jet drill rig 15, pharmacy jar the 18, second valve 19, high pressure injection Stock pump the 20, second Pressure gauge the 21, the 3rd valve the 22, second screw-rod air compressor the 24, the 3rd Pressure gauge 25 and the 4th valve 26, institute The arrival end stating high-pressure injection pump 20 is connected with pharmacy jar 18 by pipeline, the pipe between high-pressure injection pump 20 and pharmacy jar 18 Road is provided with the second valve 19, and the port of export of high-pressure injection pump 20 is connected with jet drill rig 15 by pipeline, high-pressure injection pump Pipeline between 20 and jet drill rig 15 is provided with the second Pressure gauge 21 and the 3rd valve 22, and the second screw-rod air compressor 24 passes through Pipeline is connected with jet drill rig 15, and the pipeline between the second screw-rod air compressor 24 and jet drill rig 15 is provided with the 3rd pressure Table 25 and the 4th valve 26；

The monitoring of described groundwater tracer and quickly detector unit include Geoprobe rig 28, steel thimble 29, steel screen casing 30, machinery bladder pump 31, deserted drill bit 32, air pocket pump 33, water quality monitor 34, filter 35, bromine electrode 36, temperature electrode 37, reference electrode 38, beaker 39, universal electrode frame 40 and pH/ ion concentration fast detector 41, described Geoprobe rig 28 Bottom be provided with steel thimble 29, be provided with steel screen casing 30 in steel thimble 29, be provided with in steel screen casing 30 machinery bladder pump 31, steel screen casing 30 Lower end be provided with deserted drill bit 32, air pocket pump 33 supplies for machinery bladder pump 31, machinery bladder pump 31 outlet pipe and filter The water inlet of 35 is connected, and water quality monitor 34 is connected with filter 35, and filter 35 is connected with beaker 39, in beaker 39 Being respectively equipped with bromine electrode 36, temperature electrode 37 and reference electrode 38, bromine electrode 36, temperature electrode 37 and reference electrode 38 all pass through Universal electrode frame 40 is connected with pH/ ion concentration fast detector 41.

The nominal diameter of described steel thimble (29) is 2.25 inches.

The nominal diameter of described steel screen casing (30) is 1.25 inches, a length of 1.5 meters of steel screen casing (30).

The concentration range of the monitoring of described groundwater tracer and quickly detector unit detection tracer: 0.4～7990mg/L, Detection pH value range 2～11, detection solution temperature ranges 5～40 DEG C.

Test method

As it is shown in figure 5, lay position, decanting point (boring) center 43 in situ by Groundwater Flow direction 45, walking draws hole Rig 6 laying in place testing site, as it is shown in figure 1, be sequentially connected with air intlet the 7, first screw-rod air compressor the 8, first Pressure gauge 9, the first valve 10, pneumatic tube 11, drilling rod 12 and air latent drift drilling tool 13, after checking that gas circuit is unimpeded, carries out drawing hole operation, wears Miscellaneous fill layer 1, completes to draw the operation of hole section 14, drilling diameter 110mm, the degree of depth 3～5m thoroughly.

As in figure 2 it is shown, complete all original position decanting points draw hole operation after, walking draws drilling machine 6 telephone-moving, jet drill rig 15 position, original position decanting point (boring) centers 43 in place, repair medicament 16 with a certain proportion of tracer (sodium bromide) 17 at medicament In tank 18 molten be made into mixed solution and stir after, treat in situ to inject underground.Inject (high-pressure injection) in situ and use air-liquid two The weight tube method injection reparation liquid medicine containing tracer (sodium bromide), it is empty that gas circuit presses fresh air inlet the 23, second screw Press the 24, the 3rd Pressure gauge 25 and the 4th valve 26 are sequentially connected with, and liquid is exported by pharmacy jar 18, the second valve 19, high pressure injection Stock pump the 20, second Pressure gauge the 21, the 3rd valve 22 is sequentially connected with, under be drilled into test depth capacity after, simultaneously open air-liquid valve Door, injects in pollution water-bearing layer (layer of sand) 3 from bottom to top by reparation medicament and reactor solution, and (injection is repaiied to define churning section Multiple medicament and tracer) 27, test medicine dilation angle is R.

After completing the original position injection operation of reparation medicament and tracer, jet drill rig 15 telephone-moving, after 24h, carry out subsoil water Monitoring point is arranged and fast sampling, as shown in Figure 3.By original position decanting point plane layout position designing in effective dilation angle, Outside diplopore effect, single hole effect, three effect of holes, dilation angle, (background value point) each representative locations at least lays 1 underground Water fast monitored point, i.e. groundwater tracer monitoring point (C1～C4, C4 are background dot) 44.The construction operation of single monitoring point For, center, Geoprobe rig 28 design in place monitoring point, by inside equipped with 1.25 inches, the steel screen casing of a length of 1.5m After people's predetermined test depth capacity position, water-bearing layer pressed by the steel thimble 29 of 2.25 inches of 30, rise and pull out a trocar sheath 29 about 1.5m left side The right side, the deserted drill bit of its underpart has been left on underground, and steel screen casing 30 exposes and directly contacts with water-bearing layer.Steel screen casing 30 is internal Put into machinery bladder pump 31 for extracting the subsoil water of desired depth, on ground use air pocket pump 33 supply, accelerate ground The picking rate of lower water, gathered subsoil water is unified after the water quality monitor 34, filter 35 on ground to be collected, as treating geodetic Lower water sample.Beaker 39 equipped with groundwater sample to be measured is inserted into bromine electrode 36, temperature electrode 37 and reference electrode 38, electrode Use pH/ ion concentration fast detector 41 to calibrate and measure after fixing use universal electrode frame 40, can directly read institute Survey concentration (mg/L) data of tracer (bromide ion) in groundwater sample.Bromide ion concentration data (mg/L) in surveyed subsoil water Analysis can be compared with the background value of test site, thus obtain medicament effective dilation angle data in test water-bearing layer.

The present embodiment can be used for zone of saturation injection repair process Tracer Test in situ and determines dilation angle parameter or original position Inject repair process and repair diffusion effect inspection or the monitoring of medicament.

The above, only this utility model preferably detailed description of the invention, these detailed description of the invention are all based on this Different implementations under utility model general idea, and protection domain of the present utility model is not limited thereto, any ripe Know those skilled in the art in the technical scope that this utility model discloses, the change that can readily occur in or replacement, all Should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with claims Protection domain is as the criterion.

Claims (4)

1. contaminated soil and subsoil water inject in situ and repair the pilot system that dilation angle determines, including: inject cloth in situ Select and conducting-hole unit, tracer and repair medicament injecting unit and groundwater tracer monitoring and quick detector unit；Its feature It is,

Described original position inject layout and conducting-hole unit include walking draw drilling machine (6), the first screw-rod air compressor (8), first Pressure gauge (9), the first valve (10), pneumatic tube (11), drilling rod (12) and air latent drift drilling tool (13), described walking draws hole Being provided with drilling rod (12) on rig (6), the lower end of drilling rod (12) is provided with air latent drift drilling tool (13), the one of pneumatic tube (11) End is connected with the outlet of the first screw-rod air compressor (8), and the other end of pneumatic tube (11) is connected with drilling rod (12), pneumatic tube (11) the first Pressure gauge (9) is installed on, pneumatic tube (11) is serially connected with the first valve (10)；

Described tracer and reparation medicament injecting unit include jet drill rig (15), pharmacy jar (18), the second valve (19), high pressure Grouting pump (20), the second Pressure gauge (21), the 3rd valve (22), the second screw-rod air compressor (24), the 3rd Pressure gauge (25) and 4th valve (26), the arrival end of described high-pressure injection pump (20) is connected with pharmacy jar (18) by pipeline, high-pressure injection pump (20) pipeline and between pharmacy jar (18) is provided with the second valve (19), the port of export of high-pressure injection pump (20) by pipeline with Jet drill rig (15) is connected, and the pipeline between high-pressure injection pump (20) and jet drill rig (15) is provided with the second Pressure gauge (21) With the 3rd valve (22), the second screw-rod air compressor (24) is connected with jet drill rig (15) by pipeline, and the second screw is empty Pipeline between press (24) and jet drill rig (15) is provided with the 3rd Pressure gauge (25) and the 4th valve (26)；

The monitoring of described groundwater tracer and quickly detector unit include Geoprobe rig (28), steel thimble (29), steel screen casing (30), machinery bladder pump (31), deserted drill bit (32), air pocket pump (33), water quality monitor (34), filter (35), bromine electricity Pole (36), temperature electrode (37), reference electrode (38), beaker (39), universal electrode frame (40) and pH/ ion fast detector (41), the bottom of described Geoprobe rig (28) is provided with steel thimble (29), is provided with steel screen casing (30) in steel thimble (29), and steel sieves Being provided with machinery bladder pump (31) in pipe (30), the lower end of steel screen casing (30) is provided with deserted drill bit (32), and air pocket pump (33) is machine Tool bladder pump (31) supplies, and machinery bladder pump (31) outlet pipe is connected with the water inlet of filter (35), water quality monitor (34) being connected with filter (35), filter (35) is connected with beaker (39), and beaker is respectively equipped with bromine electrode in (39) (36), temperature electrode (37) and reference electrode (38), bromine electrode (36), temperature electrode (37) and reference electrode (38) are all by ten thousand It is connected with pH/ ion fast detector (41) to arc-spark stand (40).

Contaminated soil the most according to claim 1 and subsoil water inject in situ repairs the pilot system that dilation angle determines, It is characterized in that, the nominal diameter of described steel thimble (29) is 2.25 inches.

Contaminated soil the most according to claim 1 and subsoil water inject in situ repairs the pilot system that dilation angle determines, It is characterized in that, the nominal diameter of described steel screen casing (30) is 1.25 inches, a length of 1.5 meters of steel screen casing (30).

Contaminated soil the most according to claim 1 and subsoil water inject in situ repairs the pilot system that dilation angle determines, It is characterized in that, the concentration range of the monitoring of described groundwater tracer and quickly detector unit detection tracer: 0.4～ 7990mg/L, detects pH value range 2～11, detection solution temperature ranges 5～40 DEG C.