CN103790594A - Method for exploring and processing interior of boulder hole in front for shield method construction - Google Patents
Method for exploring and processing interior of boulder hole in front for shield method construction Download PDFInfo
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- CN103790594A CN103790594A CN201410067205.1A CN201410067205A CN103790594A CN 103790594 A CN103790594 A CN 103790594A CN 201410067205 A CN201410067205 A CN 201410067205A CN 103790594 A CN103790594 A CN 103790594A
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Abstract
The invention discloses a method for exploring and processing the interior of a boulder hole in front for shield method construction. The method includes the following steps of advanced exploration hole drilling, boulder exploring and boulder processing. In the first step of advanced exploration hole drilling, a plurality of exploration holes are drilled in front of a cutterhead of a shield tunneling machine from back to front through a plurality of drilling channels distributed in the cutterhead of the shield tunneling machine. In the second step of boulder exploring, boulder exploring is performed through an ultrasonic detector and the multiple exploration holes with the following procedures, first, an ultrasonic transmitter and an ultrasonic receiver are installed; second, ultrasonic detection is performed, wherein the installed ultrasonic transmitter and the installed ultrasonic receiver are moved simultaneously from back to front or from front to back, and the strength of the stratum in each moving position is ultrasonically detected in the moving process. In the third step of boulder processing, boulders in front of the cutterhead of the shield tunneling machine are detonated. The method is simple in step, reasonable in design, convenient to achieve, good in using effect and capable of overcoming multiple defects existing in a boulder exploring method adopted in existing shield method construction.
Description
Technical field
The invention belongs to Shield Construction Technique field, especially relate to a kind of shield construction with surveying and processing method in boulder hole, front.
Background technology
21 century is the epoch of tunnel and underground space great development, shield construction is more and more used in the exploitation of the underground space, and the geologic province of China is widely different, in shield construction, usually run into the high boulder of saturated uniaxial compressive strength, the normal tunneling construction of serious harm shield structure.Conventional boulder detection method is: adopt the method for probing or physical prospecting to survey boulder on earth's surface, then carry out targetedly deep hole blasting.The detection specific aim of existing boulder detection means is not strong, and drilling hole amount is many, and while having building or other orographic conditions to be restricted directly over tunnel, cannot realize and survey and process.
As shown in Figure 1, Figure 2 and Figure 3, in Analysis on Shield Tunnel Driven Process, while adopting existing boulder detection method to survey front boulder, main geological drilling or the geological radar of relying on surveyed, specifically along the axis of constructed shield tunnel 1, drill through from earth's surface that carry out vertically in multiple probings hole 2, development examination from top to bottom, and according to after surveying intensity to the cutter head of shield machine 3 existing boulders in front and size and determining, then carry out underground deep hole presplitting explosion.When practice of construction, mainly there is following defect and deficiency in existing boulder detection method: 1. the quantity of exploration hole (drilling hole 2) is many, and the full section that is difficult to realize within the scope of driving is surveyed; If 2. have building directly over shield tunnel, cannot realize vertical sounding outside hole; 3. the large exploration hole later stage that set also needs filling, and slurries are emerged when preventing shield driving; 4. in great river, when great river or marine construction, the construction of vertical drill inspecting hole needs large-scale water surface equipment, cost is high, complicated construction technique; Once 5. find boulder, explosion as accurate in need, need carry out vertical drilling from ground, measurement and positioning difficulty is large, and affects demolition effect.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provide a kind of shield construction with surveying and processing method in boulder hole, front, its method step simple, reasonable in design and realize convenient, result of use is good, can effectively solve number of drawbacks and the deficiency of institute's boulder detection method that adopts existence in existing shield construction.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that the method comprises the following steps:
Multiple described exploration holes are all laid along the axis direction of constructed shield tunnel; Described cutter head of shield machine is circular beater plate, and multiple described drilled tunnels are the manhole of laying along the central axis of described circular beater plate, and multiple described exploration holes are coaxial laying with multiple described drilled tunnels respectively; Multiple described drilled tunnels comprise the multiple drilled tunnels one that are laid on circumference c1 and are laid in the multiple drilled tunnels two on circumference c2, and the center of circle of circumference c1 and circumference c2 is all positioned on the central axis of described circular beater plate; Multiple described drilled tunnels one are along the circumferential direction laid, and multiple described drilled tunnels two are along the circumferential direction laid; Wherein, the diameter of circumference c1 is greater than the diameter of circumference c2;
Multiple described drilled tunnels two comprise a transmitter installation passage, the exploration hole that is coaxial laying with described transmitter installation passage in multiple described exploration holes is transmitter installing hole, and the exploration hole in multiple described exploration holes except described transmitter installing hole is receiver installing hole;
Step 201, ultrasonic transmitter and ultrasonic receiver are installed: the ultrasonic transmitter of supersonic reflectoscope is packed in described transmitter installing hole, and in multiple described receiver installing holes, the ultrasonic receiver of a supersonic reflectoscope is all installed, and the ultrasonic transmitter and the multiple described ultrasonic receiver that pack in multiple described exploration holes are all laid on the same plane paralleling with cutter head of shield machine;
The quantity of multiple described exploration holes is M+1, and the quantity of multiple described ultrasonic receivers is M; M ultrasound examination unit of described ultrasonic transmitter and M described ultrasonic receiver composition;
Step 202, ultrasound examination: by the ultrasonic transmitter of installing in step 201 and M described ultrasonic receiver, from the rear end of multiple described exploration holes by backward preamble move to front end or from the front end of multiple described exploration holes by forward direction synchronizing moving to rear end; And move or by synchronizing moving process after forward direction, respectively the formation strength at each shift position place carried out to ultrasound examination by M described ultrasound examination unit by backward preamble;
When the formation strength at each shift position place is carried out to ultrasound examination, the ultrasonic velocity c respectively place, current shift position being stated between transmitter installing hole and M described receiver installing hole by M described ultrasound examination unit detects, and the ultrasonic velocity c drawing according to detection, the formation strength size that place, current shift position is stated between transmitter installing hole and M described receiver installing hole judges; And, detecting the ultrasonic velocity c drawing faster, formation strength is larger;
In step 202, carry out in ultrasound examination process, judge the formation strength size variation situation between described transmitter installing hole and M the described receiver installing hole drawing according to each shift position place, whether exist position, size and the intensity of boulder and existing boulder to determine to cutter head of shield machine front;
Above-mentioned a kind of shield construction is with surveying and processing method in boulder hole, front, it is characterized in that: before carrying out ultrasound examination in step 202, first utilize supersonic reflectoscope to carry out respectively ultrasound examination to Different Strata, and draw according to testing result the change curve that formation strength changes with ultrasonic velocity c; While carrying out ultrasound examination in step 202, the ultrasonic velocity c drawing according to detection, and the change curve changing with ultrasonic velocity c in conjunction with the formation strength that draws, judgement show that place, current shift position states the formation strength size between transmitter installing hole and the individual described receiver installing hole of M.
Above-mentioned a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that: described in formation strength described in step 202 and step 202 neutralization procedure three, the intensity of boulder is compressive strength.
Above-mentioned a kind of shield construction is with surveying and processing method in boulder hole, front, it is characterized in that: while the existing boulder in cutter head of shield machine front being carried out to explosion in step 3, by the drilled tunnel of laying on cutter head of shield machine, by drilling through before backward, need are processed to the shot hole that boulder carries out explosion.
Detection and processing method in boulder hole, front for above-mentioned a kind of shield construction, is characterized in that: in step 1, the aperture of multiple described exploration holes is all identical, in step 1, the aperture of multiple described drilled tunnels is all identical; The aperture of described exploration hole is Φ 70mm～Φ 80mm, and the aperture of described exploration hole is less than the aperture of drilled tunnel.
Above-mentioned a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that: the aperture of described drilled tunnel is Φ 80mm～Φ 120mm.
Above-mentioned a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that: in step 1 the identical length of multiple described exploration holes together and its length be 20m～30m.
Above-mentioned a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that: in step 1, carry out forward probe hole drill while getting, adopt the sleeve pipe hole forming method that follows up to drill through multiple described exploration holes.
Above-mentioned a kind of shield construction is with surveying and processing method in boulder hole, front, it is characterized in that: before constructed shield tunnel is carried out to tunneling construction, first according to the geological map of constructed shield tunnel construction area of living in, the section that has boulder is determined, again constructed shield tunnel is carried out to tunneling construction, and in tunneling construction process, by shutoff element, the multiple described drilled tunnel of opening on cutter head of shield machine is carried out respectively to shutoff; Until tunneling construction when there is the section of boulder, remove described shutoff element, and the boulder to the method described in step 3, cutter head of shield machine front being existed according to step 1 is surveyed and is processed, after the boulder existing until cutter head of shield machine front is finished dealing with, by described shutoff element, the multiple described drilled tunnel of opening on cutter head of shield machine is carried out respectively to shutoff again, after shutoff completes, constructed shield tunnel is proceeded to tunneling construction.
Above-mentioned a kind of shield construction, with surveying and processing method in boulder hole, front, is characterized in that: the spacing in step 1 between adjacent two described drilled tunnels one is 2m～3m; Spacing between circumference c1 and the outer edge line of described circular beater plate is 15cm～60cm, and the diameter of circumference c2 is Φ 1m～Φ 2m.
The present invention compared with prior art has the following advantages:
1, method step is simple, reasonable in design and realize conveniently, and input cost is lower.
2, the exploration hole that drills through is horizontal drilling, and adopts sleeve pipe follow-up boring, can effectively guarantee hole quality, the high-intensity pvc pipe of casing selection.In addition, for Fu Shui stratum, effectively water shutoff when exploration hole boring.
3, adopt ultrasonic detection method, step is simple and realization is convenient, by install ultrasonic listening equipment in drilled through exploration hole, just can accurately judge boulder shape and size according to ultrasonic velocity c.
4, reasonable in design, by multiple drilled tunnels being set (while normally driving at cutter head of shield machine periphery and center, drilled tunnel is in closed condition), in the location that may occur boulder, the forward probe hole that is 20m～30m by drilled tunnel construction depth, in forward probe hole, cutterhead center, place a ultrasonic transmitter (also claiming transmitting transducer), and in other exploration hole of periphery, all place ultrasonic receiver (also claiming receiving transducer), by moving ultrasonic transmitter and receiver in exploration hole inter-sync, and according to hyperacoustic spread speed, just can accurately calculate the compressive strength of country rock between ultrasonic transmitter and each receiver, velocity of wave more Surrounding Rock Strength is higher, and then can accurately verify the relative position of front boulder, size and intensity height, then to the boulder of verifying by the accurate perforating of drilled tunnel and implement controlled blasting explosion, realizing shield machine passes through smoothly.
5, result of use is good and use value is high, can realize in Tunnel and carry out boulder detection and process, and boulder is surveyed and is processed the impact that is not subject to ground environment, and the full section that simultaneously can realize within the scope of shield driving by the present invention is surveyed, and the cost that boulder is surveyed and processed is relatively low.In addition, when boulder is carried out to explosion, adopt in hole the deep hole accurate presplitting controlled blasting of fixing a point, thereby demolition effect is good.To sum up, the present invention efficiently solves the problem of full section detection front boulder in hole, is not subject to the impact of ground environment, and explosion treatment is more accurate, with strong points.
In sum, the inventive method step simple, reasonable in design and realize convenient, result of use is good, can effectively solve number of drawbacks and the deficiency of institute's boulder detection method that adopts existence in existing shield construction.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the installation position schematic diagram of drilling hole while adopting existing detection method to survey boulder.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Fig. 4 is method flow block diagram of the present invention.
Fig. 5 is the use state reference map while adopting the present invention to carry out boulder detection.
Fig. 6 is the installation position schematic diagram of the hole path that spuds on cutter head of shield machine of the present invention.
Fig. 7 is the ultrasound examination schematic diagram while adopting the present invention to carry out boulder detection.
Description of reference numerals:
1-the shield tunnel of constructing; 2-probing hole; 3-cutter head of shield machine;
4-drilled tunnel; 5-exploration hole; 6-supersonic reflectoscope;
6-1-ultrasonic transmitter; 6-2-ultrasonic receiver; 9-;
The specific embodiment
A kind of shield construction as shown in Figure 4, with surveying and processing method in boulder hole, front, comprises the following steps:
As shown in Figure 6, multiple described exploration holes 5 are all laid along the axis direction of constructed shield tunnel 1.Described cutter head of shield machine 3 is circular beater plate, and multiple described drilled tunnels 4 are the manhole of laying along the central axis of described circular beater plate, and multiple described exploration holes 5 are coaxial laying with multiple described drilled tunnels 4 respectively.Multiple described drilled tunnels 4 comprise the multiple drilled tunnels one that are laid on circumference c1 and are laid in the multiple drilled tunnels two on circumference c2, and the center of circle of circumference c1 and circumference c2 is all positioned on the central axis of described circular beater plate; Multiple described drilled tunnels one are along the circumferential direction laid, and multiple described drilled tunnels two are along the circumferential direction laid.Wherein, the diameter of circumference c1 is greater than the diameter of circumference c2.
In the present embodiment, in step 1, the aperture of multiple described exploration holes 5 is all identical, and in step 1, the aperture of multiple described drilled tunnels 4 is all identical.
The aperture of described exploration hole 5 is Φ 70mm～Φ 80mm, and the aperture of described exploration hole 5 is less than the aperture of drilled tunnel 4.The aperture of described drilled tunnel 4 is Φ 80mm～Φ 120mm.In the present embodiment, the aperture of described exploration hole 5 is Φ 76mm, and the aperture of described drilled tunnel 4 is Φ 100mm.When practice of construction, can according to specific needs, the aperture of described exploration hole 5 and drilled tunnel 4 be adjusted respectively.
In the present embodiment, the spacing between adjacent two described drilled tunnels one is 2m～3m.
Actually add man-hour, the spacing between circumference c1 and the outer edge line of described circular beater plate is 15cm～60cm, and the diameter of circumference c2 is Φ 1m～Φ 2m.In the present embodiment, the spacing between circumference c1 and the outer edge line of described circular beater plate is 30cm, and the diameter of circumference c2 is Φ 1m.When practice of construction, can be according to specific needs, the diameter to the spacing between circumference c1 and the outer edge line of described circular beater plate, circumference c2 and the diameter of circumference c2 adjust accordingly.
In the present embodiment, multiple described drilled tunnels one are even laying, and multiple described drilled tunnel two is even laying.
In the present embodiment, the quantity of multiple described drilled tunnels two is two.
In the present embodiment, the spacing between two described drilled tunnels two is identical with the diameter of circumference c2.Two described drilled tunnels two comprise drilled tunnel two and the lower drilled tunnel two being positioned under described upper drilled tunnel two.
In the present embodiment, multiple described drilled tunnels two comprise a transmitter installation passage, the exploration hole 5 that is coaxial laying with described transmitter installation passage in multiple described exploration holes 5 is transmitter installing hole, and the exploration hole 5 in multiple described exploration holes 5 except described transmitter installing hole is receiver installing hole.
In the present embodiment, in step 1 the identical length of multiple described exploration holes 5 with and its length be 20m～30m.
And, in step 1, carry out forward probe hole drill while getting, adopt sleeve pipe follow-up hole forming method to drill through multiple described exploration holes 5.
Step 201, ultrasonic transmitter and ultrasonic receiver are installed: the ultrasonic transmitter 6-1 of supersonic reflectoscope 6 is packed in described transmitter installing hole, and in multiple described receiver installing holes, the ultrasonic receiver 6-2 of a supersonic reflectoscope 6 is all installed, and the ultrasonic transmitter 6-1 and the multiple described ultrasonic receiver 6-2 that pack in multiple described exploration holes 5 are all laid on the same plane paralleling with cutter head of shield machine 3.
The quantity of multiple described exploration holes 5 is M+1, and the quantity of multiple described ultrasonic receiver 6-2 is M; M ultrasound examination unit of described ultrasonic transmitter 6-1 and M described ultrasonic receiver 6-2 composition.
Step 202, ultrasound examination: by the ultrasonic transmitter 6-1 installing in step 201 and M described ultrasonic receiver 6-2, from the rear end of multiple described exploration holes 5 by backward preamble move to front end or from the front end of multiple described exploration holes 5 by forward direction synchronizing moving to rear end; And moved or by synchronizing moving process after forward direction, respectively the formation strength at each shift position place carried out to ultrasound examination by M described ultrasound examination unit by backward preamble, its ultrasound examination state refers to Fig. 7, and wherein, M is positive integer.As seen from Figure 7, can whether exist boulder to carry out full section detection to cutter head of shield machine 3 fronts by the present invention.
When the formation strength at each shift position place is carried out to ultrasound examination, the ultrasonic velocity c respectively place, current shift position being stated between transmitter installing hole and M described receiver installing hole by M described ultrasound examination unit detects, and the ultrasonic velocity c drawing according to detection, the formation strength size that place, current shift position is stated between transmitter installing hole and M described receiver installing hole judges; And, detecting the ultrasonic velocity c drawing faster, formation strength is larger.
In step 202, carry out in ultrasound examination process, judge the formation strength size variation situation between described transmitter installing hole and M the described receiver installing hole drawing according to each shift position place, whether exist position, size and the intensity of boulder and existing boulder to determine to cutter head of shield machine 3 fronts.
Described in formation strength described in step 202 and step 202 neutralization procedure three, the intensity of boulder is compressive strength.In the present embodiment, described in formation strength described in step 202 and step 202 neutralization procedure three, the intensity of boulder is uniaxial compressive strength.In the time that cutter head of shield machine 3 earth layer in front are country rock, the compressive strength that formation strength described in step 202 is country rock.
In the present embodiment, it is the isolated stone that 2m～3m and saturated uniaxial compressive strength are greater than 60MPa that described boulder refers to shield driving section inside dimension, is called boulder.
When whether reality exists position, size and the intensity of boulder and existing boulder to determine to cutter head of shield machine 3 fronts, formation strength size variation situation between the described transmitter installing hole drawing according to judgement and M described receiver installing hole, find out the isolated stone that compressive strength is greater than 60MPa, and size and position to found out boulder determined.
Ultrasound examination is the main what is called " through transmission technique " that adopts at present, use a ultrasonic transmitter repeat its transmission ultrasonic wave, and allow ultrasonic wave at detected Propagation, then received by ultrasonic receiver and received ultrasonic wave is converted into after the signal of telecommunication, be shown enlarged on screen through supersonic reflectoscope 6 again, measure the parameters,acoustic of the ultrasonic signal of receiving with supersonic reflectoscope 6.When ultrasonic wave is after Propagation, it is by the information of carrying about material property, internal construction and the composition thereof of medium.The size of these parameters of Accurate Determining and variation, can infer performance, internal construction and the composition situation thereof of medium.
Theoretical all confirm with experiment, the density of object is better, and porosity is lower, its velocity of wave higher (faster).Concerning rock, density is better, and porosity is lower, and its compressive strength must be higher.Therefore, between compressive strength of rock and ultrasonic velocity c, there is correlation.
In the present embodiment, before carrying out ultrasound examination in step 202, first utilize supersonic reflectoscope 6 to carry out respectively ultrasound examination to Different Strata, and draw according to testing result the change curve that formation strength changes with ultrasonic velocity c; While carrying out ultrasound examination in step 202, the ultrasonic velocity c drawing according to detection, and the change curve changing with ultrasonic velocity c in conjunction with the formation strength that draws, judgement show that place, current shift position states the formation strength size between transmitter installing hole and the individual described receiver installing hole of M.Thereby, after the change curve changing with ultrasonic velocity c according to formation strength (specifically compressive strength of rock), measure ultrasonic velocity c, just can extrapolate the compressive strength of rock.
Wherein, when change curve stratum intensity ultrasonic velocity c being changed according to testing result is determined, adopt trace-point method to draw the change curve that formation strength changes with ultrasonic velocity c.
In the present embodiment, while the cutter head of shield machine 3 existing boulders in front being carried out to explosion in step 3, by the drilled tunnel 4 of laying on cutter head of shield machine 3, by drilling through before backward, need are processed to the shot hole that boulder carries out explosion.
In the present embodiment, before constructed shield tunnel 1 is carried out to tunneling construction, first according to the geological map of constructed shield tunnel 1 construction area of living in, the section that has boulder is determined, again constructed shield tunnel 1 is carried out to tunneling construction, and in tunneling construction process, by shutoff element, the multiple described drilled tunnel 4 of opening on cutter head of shield machine 3 is carried out respectively to shutoff; Until tunneling construction when there is the section of boulder, remove described shutoff element, and the boulder to the method described in step 3, cutter head of shield machine 3 fronts being existed according to step 1 is surveyed and is processed, after the boulder existing until cutter head of shield machine 3 fronts is finished dealing with, by described shutoff element, the multiple described drilled tunnel 4 of opening on cutter head of shield machine 3 is carried out respectively to shutoff again, after shutoff completes, constructed shield tunnel 1 is proceeded to tunneling construction.
In the present embodiment, described shutoff element is the shutoff disk that is laid in described cutter head of shield machine 3 positive rear sides, is provided with multiple sealing blocking parts that respectively multiple described drilled tunnels 4 carried out to shutoff on described shutoff disk.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (10)
1. shield construction, with surveying and a processing method in boulder hole, front, is characterized in that the method comprises the following steps:
Step 1, forward probe hole drill are got: by the upper multiple drilled tunnels (4) laid of cutter head of shield machine (3), drill through multiple exploration holes (5) by before backward in cutter head of shield machine (3) front;
Multiple described exploration holes (5) are all laid along the axis direction of constructed shield tunnel (1); Described cutter head of shield machine (3) is circular beater plate, and multiple described drilled tunnels (4) are the manhole of laying along the central axis of described circular beater plate, and multiple described exploration holes (5) are coaxial laying with multiple described drilled tunnels (4) respectively; Multiple described drilled tunnels (4) comprise the multiple drilled tunnels one that are laid on circumference c1 and are laid in the multiple drilled tunnels two on circumference c2, and the center of circle of circumference c1 and circumference c2 is all positioned on the central axis of described circular beater plate; Multiple described drilled tunnels one are along the circumferential direction laid, and multiple described drilled tunnels two are along the circumferential direction laid; Wherein, the diameter of circumference c1 is greater than the diameter of circumference c2;
Multiple described drilled tunnels two comprise a transmitter installation passage, the exploration hole (5) that is coaxial laying with described transmitter installation passage in multiple described exploration holes (5) is transmitter installing hole, and the exploration hole (5) in multiple described exploration holes (5) except described transmitter installing hole is receiver installing hole;
Step 2, boulder are surveyed: adopt supersonic reflectoscope (6) and utilize the multiple exploration holes (5) that drill through in step 1 to carry out boulder detection, process is as follows:
Step 201, ultrasonic transmitter and ultrasonic receiver are installed: the ultrasonic transmitter of supersonic reflectoscope (6) (6-1) is packed in described transmitter installing hole, and in multiple described receiver installing holes, the ultrasonic receiver (6-2) of a supersonic reflectoscope (6) is all installed, and the ultrasonic transmitter (6-1) and the multiple described ultrasonic receiver (6-2) that pack in multiple described exploration holes (5) are all laid on the same plane paralleling with cutter head of shield machine (3);
The quantity of multiple described exploration holes (5) is M+1, and the quantity of multiple described ultrasonic receivers (6-2) is M; M ultrasound examination unit of described ultrasonic transmitter (6-1) and M described ultrasonic receiver (6-2) composition;
Step 202, ultrasound examination: by the ultrasonic transmitter of installing in step 201 (6-1) and M described ultrasonic receiver (6-2), from the rear end of multiple described exploration holes (5) by backward preamble move to front end or from the front end of multiple described exploration holes (5) by forward direction synchronizing moving to rear end; And move or by synchronizing moving process after forward direction, respectively the formation strength at each shift position place carried out to ultrasound examination by M described ultrasound examination unit by backward preamble;
When the formation strength at each shift position place is carried out to ultrasound examination, the ultrasonic velocity c respectively place, current shift position being stated between transmitter installing hole and M described receiver installing hole by M described ultrasound examination unit detects, and the ultrasonic velocity c drawing according to detection, the formation strength size that place, current shift position is stated between transmitter installing hole and M described receiver installing hole judges; And, detecting the ultrasonic velocity c drawing faster, formation strength is larger;
In step 202, carry out in ultrasound examination process, judge the formation strength size variation situation between described transmitter installing hole and M the described receiver installing hole drawing according to each shift position place, whether exist position, size and the intensity of boulder and existing boulder to determine to cutter head of shield machine (3) front;
Step 3, boulder processing: according in step 2 position, size and the intensity of definite boulder, the existing boulder in cutter head of shield machine (3) front is carried out to explosion.
2. according to detection and processing method in boulder hole, front for a kind of shield construction claimed in claim 1, it is characterized in that: before carrying out ultrasound examination in step 202, first utilize supersonic reflectoscope (6) to carry out respectively ultrasound examination to Different Strata, and draw according to testing result the change curve that formation strength changes with ultrasonic velocity c; While carrying out ultrasound examination in step 202, the ultrasonic velocity c drawing according to detection, and the change curve changing with ultrasonic velocity c in conjunction with the formation strength that draws, judgement show that place, current shift position states the formation strength size between transmitter installing hole and the individual described receiver installing hole of M.
3. according to detection and processing method in boulder hole, front for a kind of shield construction described in claim 1 or 2, it is characterized in that: described in formation strength described in step 202 and step 202 neutralization procedure three, the intensity of boulder is compressive strength.
4. according to detection and processing method in boulder hole, front for a kind of shield construction described in claim 1 or 2, it is characterized in that: while the existing boulder in cutter head of shield machine (3) front being carried out to explosion in step 3, by the drilled tunnel (4) of laying on cutter head of shield machine (3), by drilling through before backward, need are processed to the shot hole that boulder carries out explosion.
5. according to detection and processing method in boulder hole, front for a kind of shield construction described in claim 1 or 2, it is characterized in that: in step 1, the aperture of multiple described exploration holes (5) is all identical, in step 1, the aperture of multiple described drilled tunnels (4) is all identical; The aperture of described exploration hole (5) is Φ 70mm～Φ 80mm, and the aperture of described exploration hole (5) is less than the aperture of drilled tunnel (4).
6. according to detection and processing method in boulder hole, front for a kind of shield construction claimed in claim 5, it is characterized in that: the aperture of described drilled tunnel (4) is Φ 80mm～Φ 120mm.
According to a kind of shield construction described in claim 1 or 2 with surveying and processing method in boulder hole, front, it is characterized in that: in step 1 the identical length of multiple described exploration holes (5) with and its length be 20m～30m.
According to a kind of shield construction described in claim 1 or 2 with surveying and processing method in boulder hole, front, it is characterized in that: in step 1, carry out forward probe hole drill while getting, adopt sleeve pipe follow-up hole forming method to drill through multiple described exploration holes (5).
9. according to detection and processing method in boulder hole, front for a kind of shield construction described in claim 1 or 2, it is characterized in that: before constructed shield tunnel (1) is carried out to tunneling construction, first according to the geological map of constructed shield tunnel (1) construction area of living in, the section that has boulder is determined, again constructed shield tunnel (1) is carried out to tunneling construction, and in tunneling construction process, by shutoff element, the multiple described drilled tunnel (4) of opening on cutter head of shield machine (3) is carried out respectively to shutoff; Until tunneling construction when there is the section of boulder, remove described shutoff element, and the boulder to the method described in step 3, cutter head of shield machine (3) front being existed according to step 1 is surveyed and is processed, after the boulder existing until cutter head of shield machine (3) front is finished dealing with, by described shutoff element, the multiple described drilled tunnel (4) of opening on cutter head of shield machine (3) is carried out respectively to shutoff again, after shutoff completes, constructed shield tunnel (1) is proceeded to tunneling construction.
10. according to detection and processing method in boulder hole, front for a kind of shield construction described in claim 1 or 2, it is characterized in that: the spacing in step 1 between adjacent two described drilled tunnels one is 2m～3m; Spacing between circumference c1 and the outer edge line of described circular beater plate is 15cm～60cm, and the diameter of circumference c2 is Φ 1m～Φ 2m.
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| CN105604553A (en) * | 2015-12-21 | 2016-05-25 | 上海市基础工程集团有限公司 | Construction method for exploration and treatment of shield driving complex formation boulders |
| CN105604557A (en) * | 2015-12-30 | 2016-05-25 | 福建工程学院 | Shield construction boulder detection method based on seismic CT |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324283A (en) * | 2004-05-14 | 2005-11-24 | Nakaguro Kensetsu Kk | Spray nozzle and injection device using the same |
| CN101614022A (en) * | 2009-07-14 | 2009-12-30 | 邓业灿 | Tomography-based method for detecting foundation piles of building by elastics waves |
| CN102518442A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团第二工程有限公司 | Method for processing isolated stone groups in shield excavation karren section |
| CN202442785U (en) * | 2012-02-07 | 2012-09-19 | 中南大学 | Seabed shield machine vibration monitoring device for pre-treatment construction in base rock blast |
| CN103032071A (en) * | 2012-12-09 | 2013-04-10 | 中铁十二局集团有限公司 | Shield receiving forward-shift construction method of boulder group open excavation and embedment mutation space |
-
2014
- 2014-02-26 CN CN201410067205.1A patent/CN103790594B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005324283A (en) * | 2004-05-14 | 2005-11-24 | Nakaguro Kensetsu Kk | Spray nozzle and injection device using the same |
| CN101614022A (en) * | 2009-07-14 | 2009-12-30 | 邓业灿 | Tomography-based method for detecting foundation piles of building by elastics waves |
| CN102518442A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团第二工程有限公司 | Method for processing isolated stone groups in shield excavation karren section |
| CN202442785U (en) * | 2012-02-07 | 2012-09-19 | 中南大学 | Seabed shield machine vibration monitoring device for pre-treatment construction in base rock blast |
| CN103032071A (en) * | 2012-12-09 | 2013-04-10 | 中铁十二局集团有限公司 | Shield receiving forward-shift construction method of boulder group open excavation and embedment mutation space |
Non-Patent Citations (2)
| Title |
|---|
| 古力: "盾构机破碎孤石条件及预处理方法", 《隧道建设》, vol. 26, 31 December 2006 (2006-12-31) * |
| 张恒: "盾构掘进孤石处理技术研究", 《施工技术》, vol. 40, no. 350, 15 October 2011 (2011-10-15) * |
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