CN102031771B - Deep static cone penetration test method for geotechnical engineering - Google Patents
Deep static cone penetration test method for geotechnical engineering Download PDFInfo
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- CN102031771B CN102031771B CN200910070579.8A CN200910070579A CN102031771B CN 102031771 B CN102031771 B CN 102031771B CN 200910070579 A CN200910070579 A CN 200910070579A CN 102031771 B CN102031771 B CN 102031771B
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Abstract
The invention discloses a deep static cone penetration test method for geotechnical engineering. On the basis of the conventional wireless static cone penetration test method, a casing with a protection function is provided for a static cone penetration feeler lever by using the property that a rotary cone penetration vehicle rotatably penetrates a power head, and is rotatably penetrated, the bottom of the casting is provided with a cutting tooth (a rib drill) which contributes to rotatable penetration, and water or slurry with lubrication action, which is provided by the rotary cone penetration vehicle, is fully used by the rotatable penetration of the casing, so that the depth of the rotatably penetrated casting is obviously greater than that of the casting which is penetrated under static pressure and the feeler level can be prevented from being stressed, bent and then broken; therefore, the static penetration depth of a wireless static cone penetration rod can be improved. Tests prove that the method can realize the deep static cone penetration, and the largest test depth in the Tianjin area is 70 meters. The method has the advantages of obviously improving the static cone penetration depth, along with simplicity in operation.
Description
Technical field
The invention belongs to the feeler inspection method of geotechnical engineering, particularly relate to a kind of static seratum exploring method of testing of geotechnical engineering.
Background technology
Static sounding is to adopt the injection pressure of power source feeler inspection probe to be pressed into a kind of engineer geological prospecting method of soil layer enforcement in-situ test.
In known static sounding method of testing, the sensor that is arranged at probe is connected with surface recorder by the cable in feeler lever, has been commonly referred to as cable feeler inspection, and therefore the pillar of feeler lever and feeler lever must be pressed into soil layer by synchronous uniform velocity.
In prior art, normally connected and composed successively by probing rod joint, storage-pole and probe without cable static sounding rod member, probe can be single bridge probe or two-bridge probe, and storage-pole is to be provided with the analog quantity of probe body sensors output to be converted to digital quantity real-time storage or the storage device to ground receiving equipment in ground forwarding.Frictional resistance when reducing feeler lever injection and make static sounding probe reach certain feeler inspection degree of depth, some static sounding probes also arrange reamer, reamer mainly contains straight tooth-shaped, cydariform etc., reamer is provided with the Guo Shui sidewalk for visually impaired people, center being connected with probing rod joint water channel, and the recess on reamer surface is provided with the weep hole that Guo Shui sidewalk for visually impaired people, Yu Qi center is connected.The on-position of reamer is normally between probing rod joint and storage-pole.
Although above-mentioned cone penetration method is being widely used in engineer geological prospecting, can only be applicable to 40 meters of above shallow-layer geological tests.
In prior art, a kind of geotechnical engineering original position rotation contact-surveying vehicle, by car body, earth anchor, hydraulic leg, bearing soleplate, oil pump, hydraulic means, feeler lever and sleeve pipe dismounting cutting ferrule, feeler lever and sleeve pipe fairlead, each control valve console is housed to be formed, be characterised in that hydraulic means is made up of two hydraulic jacks arranged side by side and piston rod thereof, between two hydraulic jacks arranged side by side, be provided with synchronization lifting with it and transmit main spindle box and the main shaft of injection pressure, main shaft is provided with axle center water channel and the swiveling faucet that is connected vehicle-mounted slush pump, main shaft lower end is provided with the feeler lever nipple of feeler lever dismounting cutting ferrule and belt lacing water channel, also be provided with feeler lever hydraulic pressure, air-actuated jaw, console is also provided with the control valve of main shaft and vehicle-mounted slush pump oil motor, the quick liter of two hydraulic jacks arranged side by side, fast prompt drop and unsteady control valve and the each clamper control valve of falling.
The utility model " for the digital treating meter of rotation touch investigating " of notification number CN201138519 is a kind of ground readout instrument being applied to without cable rotation touch investigating, it is by housing, control panel, LCDs, control circuit board and battery supply form, its control panel is provided with menu setecting acknowledgement key, subprogram is selected and acknowledgement key group, status indicator lamp group, housing is provided with gang socket and multi-functional cable and USB standard socket, multi-functional cable respectively with the degree of depth of rotation touch investigating system equipment, speed probe output cable, upper PC exchanges data cable, charger output cable is connected with underground data harvester, control circuit board is provided with single-chip microcomputer, be connected to the reception data storage of single-chip microcomputer corresponding port, LCDs interface circuit, keyboard control circuit, usb circuit, RS485 communication interface circuit, rotating speed, depth transducer input control circuit and clock circuit.
The utility model " the underground data memory of rotation touch investigating system " of notification number CN201107634, comprises barrel-type casing, field joint, circuit board and battery power and switch, the computer of circuit board setting taking master cpu as core.Battery power is provided with the power management mechanism being made up of master cpu, relay drive circuit, this mechanism can realize that underground data memory detects on ground, the main external power that uses ground in the process of setting parameter and exchanges data, can also charge to battery power simultaneously.In the time that this underground data storage is about to drop into feeler inspection operation, the instruction that master cpu receives ground data equipment starts internal/external power changeover program, and the relay of master cpu control completes electrical source exchange.In prior art, described underground data memory combines and forms underground data test storage bar with feeler lever and rotary contact probe, be that underground data memory is fixed in feeler lever, feeler lever bottom and rotary contact of the prior art probe join, and the signal of telecommunication of rotary contact probe output is gathered amplification, A/D conversion and stored by underground data memory.
Above notification number is that the utility model of CN201138519 and CN201107634 is the major technique condition forming without cable feeler inspection.
Summary of the invention
The present invention is the technical problem that can only be applicable to shallow-layer geological test in order to solve existing static sounding method of testing, and the static seratum exploring method of testing of disclosed a kind of geotechnical engineering.
Static seratum exploring method of testing of the present invention is made up of following steps:
1. smooth location, rotation touch investigating car arrives exploratory point, and the feeler lever centring ring mating holes position of rotation touch investigating car, opens feeler inspection vehicle hydraulic system, carries out the leveling of feeler inspection car supporting leg;
2. descend earth anchor or give feeler inspection car counterweight;
3. dug mud sump, injected water or mud, water pipe connects water inlet, water outlet, the drain water circuit of slush pump, and the delivery port of slush pump is connected with the swiveling faucet of rotation touch investigating car;
4. before feeler inspection operation, on ground, the underground data memory without cable static sounding rod member is connected in to readout instrument on the ground through its communication interface, readout instrument enters on-the-spot test option program on the ground, wherein, On-Site Test Procedure mainly detects underground data memory and battery power state, option program comprises input hole number, sampling interval, selection probe type, and makes without the underground data memory of cable static sounding rod member and readout instrument clock synchronous on the ground; On-the-spot test option program after carrying out, disconnect readout instrument on the ground with without being connected of cable static sounding rod member, ground readout instrument and the depth-registering device of popping one's head in are joined;
5. the feeler lever fairlead by rotation touch investigating car is without cable static sounding rod member adjunction feeler lever, start feeler inspection, sounding machine will be pressed in stratum by certain speed without cable static sounding rod member, side by side go up the static sounding head depth of penetration of readout instrument record through the output of probe depth-registering device; In the process of probe injection, open slush pump, water or mud inject without the gap between cable static sounding rod member and stratum from reamer weep hole through feeler lever inner chamber, and return to ground through this gap;
6. feeler inspection, after certain depth, stops the injection of water or mud, with a water blocking by the inner chamber shutoff of feeler lever upper end;
7. the feeler lever fairlead of rotation touch investigating car is changed to sleeve pipe fairlead and inserts sleeve pipe, first sleeve pipe lower end bead is with cutting teeth, casing pipe sleeve is loaded on the feeler lever outside on feeler inspection stratum, the unit head of rotation touch investigating car drives the sleeve pipe connecting to be successively rotated down injection, when sleeve rotating injection, open slush pump, flow out from first sleeve pipe lower end in water or the mud gap between sleeve pipe and feeler lever, and ground is returned in water or the mud gap between sleeve pipe and stratum;
8. first sleeve pipe lower end of rotation injection stops the rotation injection operation of sleeve pipe when being no less than 1 meter without cable static sounding rod member bottom, clamps sleeve pipe with sleeve clamp, and ground unnecessary sleeve pipe is laid down;
9. sleeve pipe fairlead is changed to feeler lever fairlead, adjunction feeler lever is proceeded the static sounding operation of water filling or mud;
10. as needed setting of casing again, dismantle sleeve clamp, repeat above 6～9 steps;
11. feeler inspections, after projected depth, stop feedwater or mud implant operation, and feeler lever fairlead is pulled down, and adjunction sleeve pipe, pulls down sleeve clamp, under hydraulic chucks coordinates, first sleeve pipe are risen and are pulled out by root;
After 12. case pullings complete, carry under a utensil cooperation feeler lever is risen and pulled out by root by feeler lever, work cleaning and oiling without cable static sounding rod member after pulling out;
13. use communication cables will be connected with ground readout instrument without cable static sounding rod member, to be transferred to this ground readout instrument without the test data of cable static sounding rod member storage, browse test data and test curve, readout instrument logs off on the ground, and the test data of readout instrument unloading is uploaded in host computer and carried out Data Post on the ground;
14. use clear water rinse slush pump, then pull down inlet and outlet pipe;
15. are pulled out rotation touch investigating car earth anchor, fall oil cylinder, pack up supporting leg, close feeler inspection vehicle hydraulic system.
The cutting teeth of described first sleeve pipe lower end bead is rib coring bit.
Beneficial effect of the present invention and advantage are: the present invention is on the existing basis without cable static sounding method of testing, the characteristic of utilizing rotation touch investigating car rotation injection unit head provides the sleeve pipe with protective effect for static sounding feeler lever, this sleeve pipe is the cutting teeth (rib drill bit) that rotation injection mode and casing shoe also have the precession of being beneficial to, the rotation injection of sleeve pipe also makes full use of rotation touch investigating car the mud with lubrication is provided, therefore the tubing depth of this method rotation injection is obviously greater than the tubing depth of static pressure injection and is conducive to prevent the stressed bending of feeler lever and fractures, thereby improve the static(al) depth of penetration without cable static sounding rod member.Facts have proved, this method can realize static seratum exploring, and in Efficiency in Buildings in Tianjin Area, the maximum test degree of depth reaches 70 meters.The outstanding advantages that the present invention has is simple to operate, can obviously improve the static sounding degree of depth.
Brief description of the drawings
Accompanying drawing 1 is rotation touch investigating bassinet structure schematic diagram.
Accompanying drawing 2 is ground readout instrument example structure schematic diagrames.
Accompanying drawing 3 is ground readout instrument embodiment electricity theory structure block diagrams.
Accompanying drawing 4 is without cable static sounding member structure schematic diagram.
Accompanying drawing 5 is underground data memory construction schematic diagrames.
Accompanying drawing 6 is multi-functional cable structural representations.
Accompanying drawing 7 is underground data memory electricity theory structure block diagrams.
Accompanying drawing 8 is first sleeve structure schematic diagram.
Accompanying drawing 9 is this method FB(flow block)s.
Number in the figure: 1 feeler inspection car car body, 2 main shafts, 3 hydraulic jacks arranged side by side, 4 main shaft oil motors, 5 rotating water unions, 6 main spindle boxes, 7 consoles, 8 vehicle-mounted slush pumps, 9 hydraulic legs, 10 earth anchors, 11 fairleads, 12 ground readout instruments, 13USB standard socket, 14 power switches, 15 multi-functional cables, 16 sensor relaying boxes, 17 communications or charging relaying box, 18 probing rod joints, 19 reamers, Guo Shui sidewalk for visually impaired people, 19-1 center, 19-2 weep hole, 20 transition joints, 21 storage-pole, 22 underground data memories, 22-1 side cover, 22-2 seat ring, 22-3 end cap, 22-4 field joint, 22-5 holding wire, 23 probes, 24 relaying boxes, 24-1 cable, 24-2 shares communication cable, 24-3 feed cable, 24-4 charger input cable, 25 first sleeve pipes, 26 rib coring bits.
Detailed description of the invention
Below in conjunction with accompanying drawing, first the capital equipment that this static seratum exploring method of testing is related is described.
As shown in Figure 1, the main shaft 2 of feeler inspection car car body 1 is by the bearings of main spindle box 6, the main shaft 2 that main shaft oil motor 4 is connected in through the gearbox drive of reduction gearing train, main spindle box 6 is fixedly connected on two hydraulic jack 3 cylinder bodies arranged side by side through gripper shoe, makes main spindle box 8 with two hydraulic jack synchronization liftings arranged side by side and transmits injection pressure.Main shaft 2 is provided with the main shaft water channel that connects axle center, and main shaft upper end is provided with the swiveling faucet 5 being connected mutually with main shaft water channel, and the import of swiveling faucet is connected in vehicle-mounted slush pump 8 and exports, and the manually-operated gate of swiveling faucet is used for controlling flow of inlet water.Main shaft lower end is fixed with feeler lever and sleeve pipe Pneumatic dismounting cutting ferrule, feeler lever in this dismounting cutting ferrule or sleeve pipe respectively under two hydraulic jack liftings arranged side by side, main shaft oil motor rotarily actuate, complete the unclamping of feeler lever or sleeve pipe, tighten, static(al) injection, rotation injection and rise and pull out operation.
Fairlead 11 is corresponding with main shaft, and fairlead is feeler lever fairlead or the sleeve pipe fairlead that can change the outfit, and the half chuck of this fairlead is hydraulic chuck.
Feeler inspection car chassis of vehicle body bottom surface is symmetrically distributed with quadruplet hydraulic leg 9 and is arranged at the earth anchor 10 at both ends, chassis.Driven by engine oil pump and the air pump of feeler inspection car.
Console 7 is made up of cabinet, panel and operating grip plate, is provided with the reducing valve of the hydraulic circuit of corresponding hydraulic leg adjustment respectively, main shaft oil motor, feeler lever or sleeve pipe dismounting cutting ferrule, feeler lever or sleeve pipe fairlead, slush pump oil motor and two hydraulic jacks arranged side by side in cabinet.
Two hydraulic jacks arranged side by side of the present embodiment are in the time that oil pump output pressure is 16.0MPa, lifting force is 492kN, penetrating power is 289kN, hoisting velocity: Vbm=0-2.27m/min at a slow speed, Vbk=5.50-7.07m/min fast, penetrating speed: work is entered Vtg max=0-3.87m/min, fast Vtk max=3.87-4.98m/min.Main shaft oil motor displacement is 39ml/r, the M=5 of gear-box driving gear, Z=16; The M=5 of driven gear, Z=38, speed of mainshaft n=0-29r/min, main-shaft torque N=0-1600Nm.Slush pump oil motor discharge capacity is 16mL/r, and pump stroke is 100mm.Oil pressure clamp power Nj=90kN.Air-actuated jaw
Clamping force Nj=3.9kN.
As shown in Figure 2, on the ground the control panel of readout instrument 12 arranges menu setecting acknowledgement key " P ", the subprogram that is made up of key " K1 ", " K2 ", " K3 ", " K4 " selects and acknowledgement key group and be respectively the status indicator lamp group of green, blue, white, Red LED1 " D1 ", " D2 ", " D3 ", " D4 " formation.The top of control panel is the LCDs of 240*128 dot matrix image, Chinese character 15 row 8 row.Housing right side is provided with the socket and the USB standard socket 13 that connect multi-functional cable 15, and housing left side is provided with the power switch 14 of battery supply.
Multi-functional cable 15 is 7 core cables, two ends are connected with two M16 type 7 core aviation plugs, and the heart yearn of cable is respectively the anodal output line of battery supply, battery supply negative pole output line, depth transducer input line, speed probe input line, RS485 holding wire, RS485 shielding line and battery supply DC charging line.
Multi-functional cable makes readout instrument 12 on the ground join with depth transducer, the speed probe output cable of rotation touch investigating system equipment through sensor relaying box 16, the field observation to the degree of depth, rotating speed during for feeler inspection.Sensor relaying box 16 is provided with connection or cuts off the K switch N1 of each sensor and the inching button switch KN2 that manually pulse of analog depth sensor is exported.
Communication or charging relaying box 17 are provided with the bidirectional transducer of RS485-RS232, and RS232 is for adapting to upper PC, and RS485 is for the transfer of data of underground data harvester.Multi-functional cable is via the respective socket realization ground readout instrument 12 of communication or charging relaying box 17 and being connected of upper PC or underground data harvester.Multi-functional cable is also charged to the battery supply of ground readout instrument 12 by external charger via the respective socket of communication or charging relaying box 17, and the battery supply of readout instrument 12 provides working power to the underground data harvester in ground and depth transducer, speed probe respectively in different phase on the ground.
As shown in Figure 3, the system supervisor that the single-chip microcomputer in the readout instrument 12 of ground is installed has on-site land survey program, data readback program, transducer calibration program, previewing file program, system setting program.Wherein on-site land survey program mainly completes MTD record, surveillance operation conditions.The controls such as the main data acquisition of data readback program, storage, transmission, printing.Transducer calibration program mainly completes sensor inspection, initial value setting and confirmation, clock setting, makes without cable static sounding rod member and ground readout instrument clock synchronous.Previewing file program mainly completes the selection control of browsing feeler inspection curve from the present embodiment interface, the operation such as the movement of file, copy, deletion, rename.System setting program completes engineering name, Kong Hao, the depth coefficient of mark test file and measures the date, and curve generates, demonstration is selected and longitudinal and transverse grid scale is set.
In keyboard special, " P " selects and acknowledgement key for system program, and " K1 ", " K2 ", " K3 ", " K4 " are respectively the subprogram of " P " key hit program and select and acknowledgement key.Status indicator lamp shows respectively data acquisition state, enter controlled plant running status etc. after certain program, wherein lamp D1 is power supply indicator, lamp D2 is degree of depth reception of impulse indicator lamp, a degree of depth reception of impulse indicator lamp D2 is once glittering in every reception, and lamp D3 and D4 are data transmission procedure and complete indicator lamp.
As shown in Figure 4 without cable static sounding rod member embodiment, it is connected and composed successively by probing rod joint 18, reamer 19, transition joint 20, storage-pole 21 and probe 23, wherein reamer 19 arranges center Guo Shui sidewalk for visually impaired people 19-1 and weep hole 19-2.
As shown in Figure 5, the tubular body of underground data memory 22 arranges side cover 22-1, the seat ring 22-2 of tubular body upper end arranges the end cap 22-3 of sealing tubular body, tubular body lower end arranges hollow field joint 22-4, and the holding wire 22-5 of probe 23 each sensors introduces this underground memory from hollow field joint.
As shown in Figure 6, in the middle of the underground data memory configuration of Fig. 5, be provided with the cable of relaying box 24, diagram relaying box right side is the common cable 24-1 of connection universal socket, and left side is communication cable 24-2, the connection 12V of connection data treatment facility and feed cable 24-3 and the charger input cable 24-4 of 5V external power.
As shown in Figure 7, the computer that the setting of underground data memory is made up of master cpu, FIASH E2ROM holder, multi-channel A/D circuit, clock circuit and RS-232 communication interface, the K switch rear end of the interior power supply of the 12V battery power in tubular body is connected in master cpu power input and 5VDC-DC DC converter input.One control output end of master cpu is through photoelectric isolating circuit control relay drive circuit J, and a control output end is through the status indicator lamp of this underground data storage of photoelectric isolating circuit control.The switch rear end of interior power supply is connected in the constant open contact of one group of control contact J-1 of relay, and its constant close contact is connected in 12V external power, and stationary contact is connected in 3.3VDC-DC DC converter input, and its output is drawn the sensor that is connected to probe.5VDC-DC DC converter output is connected in the constant open contact of another group control of relay contact J-2, and its constant close contact is connected in 5V external power, and stationary contact is connected in the power input of the each circuit of this holder.In figure, RS-485 communication interface, 12V and 5V external power are connected in blanket socket, and the charger connector of this socket is connected in interior power supply.
As shown in Figure 8, first sleeve pipe 25 lower end bead is with cutting teeth, and cutting teeth is rib coring bit 26.
Below in conjunction with Fig. 9, this deep hole static sounding method of testing is described.
First smooth location, rotation touch investigating car arrive exploratory point, the feeler lever centring ring mating holes position of rotation touch investigating car, opens feeler inspection vehicle hydraulic system, carries out the leveling of feeler inspection car hydraulic leg, under hydraulic pressure earth anchor or give feeler inspection car counterweight.
Dig mud sump, injected water or mud, water pipe connects water inlet, water outlet, the drain water circuit of vehicle-mounted slush pump slush pump, and the delivery port of vehicle-mounted slush pump is connected with the swiveling faucet of rotation touch investigating car, makes to draw water, feedwater, backwater be unimpeded.
Before feeler inspection operation, on ground, the underground data memory without cable static sounding rod member is connected in to readout instrument on the ground through its communication interface, readout instrument enters on-the-spot test option program on the ground, comprise: detect underground data memory and battery power state, measurement parameter district calibrating procedure-engineering name, Kong Hao, depth coefficient and measurement date; Demarcate without cable static sounding rod member, comprise that input hole number, sampling interval (have 1cm, 2cm, 5cm, 10cm ...), select probe type doube bridge (to have single bridge, doube bridge, three bridges, reserved four bridges) etc. content, and make without the underground data memory of cable static sounding rod member and readout instrument clock synchronous on the ground; Check and demarcate after disconnect readout instrument on the ground with without being connected of cable static sounding rod member, ground readout instrument and the depth-registering device of popping one's head in are joined.
Feeler lever fairlead by rotation touch investigating car, at the upper end adjunction feeler lever without cable static sounding rod member, starts feeler inspection, and sounding machine will be pressed in stratum by certain speed without cable static sounding rod member, and side by side upper probe depth-registering device records static sounding head depth of penetration; In the process of probe injection, open slush pump, water or mud inject without the gap between cable static sounding rod member and stratum from reamer weep hole through feeler lever inner chamber, and mud returns to ground through this gap.
Feeler inspection, after certain depth, stops water filling or mud, the shutoff of water inner chamber is crossed in feeler lever upper end with a water blocking.
The feeler lever fairlead of rotation touch investigating car is changed to sleeve pipe fairlead and inserts the first piece sleeve pipe of lower end edge mouth with cutting teeth, first casing pipe sleeve is loaded on the feeler lever on feeler inspection stratum, the unit head of rotation touch investigating car drives the sleeve pipe connecting to be successively rotated down injection, when sleeve rotating injection, open slush pump, flow out from first sleeve pipe lower end in the gap of mud between sleeve pipe and feeler lever, and ground is returned in the gap of mud between sleeve pipe and stratum.
First sleeve pipe lower end of rotation injection stops the rotation injection operation of sleeve pipe when being 1 meter without cable static sounding rod member bottom, clamps sleeve pipe with sleeve clamp, and ground unnecessary sleeve pipe is laid down.
Sleeve pipe fairlead is changed to feeler lever fairlead, and adjunction feeler lever is proceeded water filling or the operation of mud static sounding.
Projected depth as inadequate in the feeler inspection degree of depth, needs setting of casing again, dismantles sleeve clamp, repeats above corresponding steps.
Feeler inspection, after projected depth, stops feedwater or mud implant operation, and feeler lever fairlead is pulled down, and adjunction sleeve pipe, pulls down sleeve clamp, under hydraulic chucks coordinates, first sleeve pipe is risen and is pulled out by root.
After case pulling completes, carry under first-class utensil cooperation feeler lever is risen and pulled out by root at feeler lever, work cleaning and oiling without cable static sounding rod member after pulling out.
To be connected with readout instrument on the ground without cable static sounding rod member with communication cable, to be transferred to this ground readout instrument without the test data of cable static sounding rod member, browse test data and test curve, readout instrument logs off on the ground, and the test data of readout instrument unloading is uploaded in host computer and carried out Data Post on the ground.
Rinse slush pump with clear water, then pull down inlet and outlet pipe.
Rise and pull out rotation touch investigating car earth anchor, fall oil cylinder, pack up supporting leg, close feeler inspection vehicle hydraulic system.
Claims (2)
1. a static seratum exploring method of testing for geotechnical engineering, is characterized in that being made up of following steps:
1) smooth location, rotation touch investigating car arrives exploratory point, and the feeler lever centring ring mating holes position of rotation touch investigating car, opens feeler inspection vehicle hydraulic system, carries out the leveling of feeler inspection car supporting leg;
2) lower earth anchor or give feeler inspection car counterweight;
3) dug mud sump, injected water or mud, water pipe connects water inlet, water outlet, the drain water circuit of slush pump, and the delivery port of slush pump is connected with the swiveling faucet of rotation touch investigating car;
4) before feeler inspection operation, on ground, the underground data memory without cable static sounding rod member is connected in to readout instrument on the ground through its communication interface, readout instrument enters on-the-spot test option program on the ground, wherein, On-Site Test Procedure mainly detects underground data memory and battery power state, option program comprises input hole number, sampling interval, selection probe type, and makes without the underground data memory of cable static sounding rod member and readout instrument clock synchronous on the ground; On-the-spot test option program after carrying out, disconnect readout instrument on the ground with without being connected of cable static sounding rod member, ground readout instrument and the depth-registering device of popping one's head in are joined;
5) the feeler lever fairlead by rotation touch investigating car is without cable static sounding rod member adjunction feeler lever, start feeler inspection, sounding machine will be pressed in stratum by certain speed without cable static sounding rod member, side by side go up the static sounding head depth of penetration of readout instrument record through the output of probe depth-registering device; In the process of probe injection, open slush pump, water or mud inject without the gap between cable static sounding rod member and stratum from reamer weep hole through feeler lever inner chamber, and return to ground through this gap;
6) feeler inspection, after certain depth, stops the injection of water or mud, with a water blocking by the inner chamber shutoff of feeler lever upper end;
7) the feeler lever fairlead of rotation touch investigating car is changed to sleeve pipe fairlead and inserts sleeve pipe, first sleeve pipe lower end bead is with cutting teeth, casing pipe sleeve is loaded on the feeler lever on feeler inspection stratum, the unit head of rotation touch investigating car drives the sleeve pipe connecting to be successively rotated down injection, when sleeve rotating injection, open slush pump, flow out from first sleeve pipe lower end in water or the mud gap between sleeve pipe and feeler lever, and ground is returned in the gap of mud between sleeve pipe and stratum;
8) first sleeve pipe lower end of rotation injection stops the rotation injection operation of sleeve pipe when being not less than 1 meter without cable static sounding rod member bottom, clamps sleeve pipe with sleeve clamp, and ground unnecessary sleeve pipe is laid down;
9) sleeve pipe fairlead is changed to feeler lever fairlead, the water blocking of dismounting feeler lever upper end adjunction feeler lever are proceeded the static sounding operation of water filling or mud;
10) as need setting of casing again, dismantle sleeve clamp, repeat above 6～9 steps;
11) feeler inspection, after projected depth, stops feedwater or mud implant operation, and feeler lever fairlead is pulled down, and adjunction sleeve pipe, pulls down sleeve clamp, under hydraulic chucks coordinates, first sleeve pipe is risen and is pulled out by root;
12) after case pulling completes, carry under a utensil cooperation feeler lever is risen and pulled out by root by feeler lever, work cleaning and oiling without cable static sounding rod member after pulling out;
13) will be connected with ground readout instrument without cable static sounding rod member with communication cable, to be transferred to this ground readout instrument without the test data of cable static sounding rod member storage, browse test data and test curve, readout instrument logs off on the ground, and the test data of readout instrument unloading is uploaded in host computer and carried out Data Post on the ground;
14) rinse slush pump with clear water, then pull down inlet and outlet pipe;
15) rise and pull out rotation touch investigating car earth anchor, fall oil cylinder, pack up supporting leg, close feeler inspection vehicle hydraulic system.
2. the static seratum exploring method of testing of geotechnical engineering according to claim 1, is characterized in that: the cutting teeth of described first sleeve pipe lower end bead is rib coring bit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910070579.8A CN102031771B (en) | 2009-09-25 | 2009-09-25 | Deep static cone penetration test method for geotechnical engineering |
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| CN200910070579.8A CN102031771B (en) | 2009-09-25 | 2009-09-25 | Deep static cone penetration test method for geotechnical engineering |
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| CN102330422A (en) * | 2011-06-09 | 2012-01-25 | 上海市城市建设设计研究院 | In-situ test and acquisition instrument with positioning and wireless transmitting functions and use method thereof |
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| CN102296582A (en) * | 2011-06-09 | 2011-12-28 | 上海市城市建设设计研究院 | In situ test acquisition instrument with positioning function and positioning method |
| CN102296583A (en) * | 2011-06-09 | 2011-12-28 | 上海市城市建设设计研究院 | In situ test acquisition instrument with wireless transmitting function and wireless transmitting method thereof |
| CN103088804B (en) * | 2013-02-07 | 2014-12-03 | 上海岩土工程勘察设计研究院有限公司 | Injection method for static sounding probe rod |
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