CN111175835A - Engineering geology detection method - Google Patents
Engineering geology detection method Download PDFInfo
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- CN111175835A CN111175835A CN202010047687.XA CN202010047687A CN111175835A CN 111175835 A CN111175835 A CN 111175835A CN 202010047687 A CN202010047687 A CN 202010047687A CN 111175835 A CN111175835 A CN 111175835A
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Abstract
The invention belongs to the technical field of geological detection, and particularly relates to an engineering geological detection method.A detection device in the method comprises a movable base, wherein a pneumatic push rod is installed at the top end of the movable base, a support rod is connected to the top end of the pneumatic push rod and consists of a fixed rod and a movable rod, support plates are connected to the top ends of the support rods, a motor is installed on the top surface of each support plate, a ball screw is connected to the end part of the motor, a sliding table is connected to the middle part of the ball screw in a sliding manner, and a radar detector capable of surveying the geological condition of a tunnel is installed on the top surface; according to the method, the geological condition inside the tunnel can be conveniently and quickly surveyed through the set detection equipment, and meanwhile, the radar detector is driven by the set transmission mechanism to continuously detect the surface of the rock mass inside the tunnel, so that the continuity and the accuracy of the detection equipment during geological detection are greatly improved.
Description
Technical Field
The invention belongs to the technical field of geological detection, and particularly relates to an engineering geological detection method.
Background
In recent years, in the fields of traffic, hydropower, mines and the like, geological conditions encountered in tunnel construction are extremely complicated, and serious disasters such as water inrush and mud dumping, collapse and the like are often encountered. At present, roads and railways are built on mountains, and tunnels are often required to be excavated in order to shorten mileage, improve line shape and protect environment. In the tunnel construction process, as the front geological condition is unknown, adverse geological conditions such as broken zones, faults, karst caves, underground rivers and the like are often encountered. Blind excavation with unknown detection may cause serious engineering accidents, such as catastrophic geological disasters, such as landslide, debris flow, heavy water gushing and the like, which not only affect the tunneling speed of the tunnel, but also even cause serious casualties and economic losses. Therefore, knowledge of the geological conditions of the tunnel through the field is required. Before tunnel construction, engineering geological exploration can accurately judge the change of the lithologic structure in front of the tunnel face, such as forecasting whether fault, broken zone, karst cave and other unfavorable geological structures exist in front of tunneling, grasp the geological structure conditions according to the detected geometric form and scale of the structures, and can timely and reasonably arrange tunneling speed, modify construction scheme and arrange protective measures. Therefore, the implementation of advanced geological forecast during tunnel construction plays an important role in exploring complex geological conditions in front of the tunnel face and preventing disasters.
Due to the influences of narrow tunnel observation space, strong environmental interference, low self resolution and identification precision and the like, the existing advanced geological prediction method such as an earthquake reflection method has poor positioning and identification effects on a smaller-scale geological body, is complex and heavy to operate and cannot meet engineering requirements, and the geological radar performs prediction work by utilizing the transmission and reflection characteristics of electromagnetic waves generated in different media.
In view of the above, the invention provides an engineering geology detection method, which accurately and continuously surveys the geological condition in the tunnel through the arranged detection equipment, thereby greatly improving the continuity and accuracy of tunnel geology during detection.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an engineering geology detection method, which can accurately and continuously survey the geological condition in the tunnel through the arranged detection equipment, thereby greatly improving the continuity and accuracy of the tunnel geology during detection.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an engineering geology detection method, which comprises the following steps:
s1: moving the detection equipment into a tunnel region to be detected, and then driving a radar detector on the top sliding table to move upwards through a pneumatic push rod and attach to the rock mass surface at the top end of the tunnel; in order to more accurately and effectively detect the geological condition in the tunnel, the radar detector is usually required to be tightly attached to the surface of the rock mass, and the radar detector is attached to the surface of the rock mass through a pneumatic push rod on the detection equipment and can be freely adjusted along with the height of the tunnel, so that the convenience and the accuracy of detection of the geological condition in the tunnel are improved;
s2: after the radar detector moves to the surface of the detected rock mass in S1, the controller controls the radar detector to survey the surface of the rock mass, and the radar detector is driven by the rotation of the motor to continuously survey the surface of the rock mass in the width direction of the tunnel; the motor on the detection equipment drives the radar detector to continuously survey the surface of the rock mass, so that the continuity and the accuracy in the geological detection process are further improved;
s3: after the radar detector finishes surveying the rock mass surface of the tunnel in the width direction in S2, the radar detector moves the tunnel in the length direction by pushing the base trolley and surveys the rock mass surface of the tunnel; the exploration position of the radar detector is conveniently and quickly adjusted by moving the base trolley, so that the working efficiency and the working quality of the detection equipment are effectively improved;
the detection equipment used in the S1 comprises symmetrically arranged movable bases, pneumatic push rods are mounted on the top surfaces of the movable bases, and supporting rods are connected to the top ends of the pneumatic push rods; the support rod consists of a fixed rod and a movable rod, a sliding groove is formed in the top end of the fixed rod, a sliding rod matched with the sliding groove is arranged on the bottom surface of the movable rod, the bottom end of the sliding rod is located inside the sliding groove and can freely slide inside the sliding groove, a first spring is connected between the top surface of the fixed rod at the outer end of the sliding rod and the bottom surface of the movable rod, the top end of the movable rod is connected with support plates, a motor is mounted on the top surface of one support plate, a ball screw is connected to the end of the motor, a support table is connected to the support plate corresponding to the other end of the ball screw, and; the middle part of the ball screw is connected with a sliding table in a sliding manner, and a radar detector capable of surveying tunnel geological conditions is arranged on the top surface of the sliding table; a guide rod is fixedly connected between the two symmetrical support plates, a sliding sleeve is connected to the side surface of the guide rod in a sliding manner at a position corresponding to the sliding table, and a limiting rod is connected between the sliding sleeve and the sliding table; the controller is arranged on the movable base and used for controlling the automatic operation of the detection equipment; when the radar detector works, the traditional radar detector is attached to the surface of a rock mass and is used for detecting by adopting a manual lifting mode, the radar detector can deal with different geological conditions, time and labor are wasted, the detection process is discontinuous due to human factors, the direction of a detection survey line is single, and the like; when the detection device works, the moving base is firstly pushed to move the detection device into a tunnel area to be detected, then the controller controls the pneumatic push rod to drive the supporting plate at the top end of the supporting rod to move upwards, so that the radar detector between the two supporting plates moves upwards and is attached to the surface of a detected rock mass at the top end of the tunnel, the radar detector attached to the surface of the detected rock mass can effectively improve the detection quality of the radar detector on the geology inside the tunnel, and due to the unevenness of the top wall of the tunnel, when the two symmetrically arranged supporting tables are not positioned on the same horizontal line on the uneven top wall of the tunnel, the bottom end of the movable rod is arranged into a mode that the movable rod is connected with the fixed rod, so that the bottom end of the movable rod drives the sliding rod to slide in the sliding groove under the action of the first spring and the top end of the supporting plate, therefore, the supporting plates at the two ends of the radar detector can adapt to rock mass surfaces of different heights of the tunnel, and the radar detector is attached to the surface of the detected rock mass, so that the stability and the accuracy of the detection equipment in working are improved; after the geological survey of the radar detector on a specific rock mass is completed, the controller controls the motor to drive the ball screw to rotate, so that the ball screw drives the radar detector on the sliding table to move along the width direction of the tunnel when rotating, the radar detector can continuously survey the rock mass surface in the width direction of the tunnel, meanwhile, the sliding table is connected on the sliding sleeve sliding on the guide rod through the limiting rod, the sliding table can stably slide when the ball screw rotates, the radial rotation of the radar detector at the top of the sliding table can be limited, the radar detector can be stably attached to the rock mass surface and can effectively work, and after the radar detector finishes the survey of the rock mass surface in the width direction of the tunnel, the radar detector can move the tunnel along the length direction and survey the rock mass surface of the tunnel by pushing the movable base, therefore, the geological detection can be carried out on the inside of the tunnel in an all-round mode, and the continuity and the accuracy of the geological detection in the inside of the tunnel can be greatly improved while the geological detection is convenient and fast.
Preferably, a movable plate is arranged between the top surface of the sliding table and the radar detector, the radar detector is installed on the top surface of the movable plate, and a group of second springs which are uniformly distributed in an annular mode are connected between the bottom surface of the movable plate and the top surface of the sliding table; during operation, when the backup pad at slip table both ends leads to radar detectorto produce great distance with the rock mass at top under the extrusion of tunnel roof protrusion piece, install No. two springs on the fly leaf bottom surface this moment and can drive its upward movement to make the fly leaf of upward movement can drive the synchronous upward movement of radar detectoron top until laminating mutually with the rock mass roof, further strengthened the self-adjusting ability of detection equipment under different geological conditions, and then strengthened the stability and the accuracy of detection equipment during operation greatly.
Preferably, the bottom surface of the movable plate is connected with a positioning rod, a positioning groove matched with the positioning rod is arranged on the top surface of the sliding table corresponding to the bottom end of the positioning rod, and the bottom end of the positioning rod is positioned in the positioning groove and can freely slide in the positioning groove; the during operation, when ball screw drives radar detection ware on the slip table and removes the investigation time measuring along tunnel width direction, unevenness's tunnel roof rock mass is easy to exert horizontal pressure and make it take place horizontal offset to the fly leaf lateral wall this moment, thereby make radar detection ware on the fly leaf top surface take place the skew and influence its stable detection to the geology thereupon, locating lever and constant head tank through setting up this moment, make the locating lever that is located the constant head tank inside not influence the fly leaf and radar detection ware vertical direction in the time of motion, can carry on spacingly to displacement on both horizontal directions again, thereby make radar detection ware can stabilize effectual geology to the tunnel inside and survey, the stability and the accuracy of detection equipment during operation have further been strengthened.
Preferably, a protective cover capable of covering the movable plate is arranged at the top end of the movable plate, and the protective cover is arc-shaped; the during operation, because radar detecter produces wearing and tearing easily when sliding on the tunnel roof, and the fly leaf that sets up also produces great resistance with convex detritus easily, thereby influence the slip table and drive that radar detecter is smooth and slide on the rock mass surface, through the hemisphere protection casing that sets up this moment, not only make the protection casing can effectually protect the radar detecter surface, reduce its wearing and tearing that lead to with rock mass surface direct extrusion contact, and curved protection casing also makes it more easily and stable on unevenness's rock mass slide, thereby it dies to reduce the card of radar detecter and fly leaf between the lug detritus, the stability and the high efficiency of detection equipment during operation have been strengthened greatly.
Preferably, the protective cover is made of elastic rubber materials, and an annular protective ring is arranged at the outer edge of the movable plate; the during operation, make through setting the protection casing to elastic rubber materials, play certain buffering effect when making the rock mass of protection casing and tunnel roof extrude each other, thereby reduce the wearing and tearing that the rigidity impact that the rock mass surface produced the protection casing and extrude and lead to, and through setting up annular guard ring in the outer edge of fly leaf, make the guard ring can protect the constant head tank that is located inside, reduce the protection casing and lead to the rock soil piece to fall into to the constant head tank inside and exert an influence to its work when the rock mass surface slides, thereby further improvement the life of detection equipment.
Preferably, the side face of the sliding sleeve opposite to the limiting rod is in threaded connection with a fastening bolt, and the fastening bolt can fix the sliding sleeve on the side face of the guide rod; the during operation, when the radar detecter moves and surveys time measuring along tunnel length direction, unevenness's rocky block produces the extrusion easily to the sliding sleeve lateral wall thereby makes it drive slip table and radar detecter produce the skew this moment on the tunnel cliff, and then influence radar detecter's detection effect, fastening bolt that can fix it through setting up on the sliding sleeve this moment, move and survey time measuring along tunnel length direction at radar detecter, make it fix the sliding sleeve on the guide bar through screwing up fastening bolt this moment, thereby make fixed sliding sleeve can fix the slip table of one side connection, fixed slip table this moment can make the radar detecter at top carry out stable work when the motion, thereby further improved the inside geology of tunnel stability and the accuracy of surveying.
The invention has the technical effects and advantages that:
1. according to the engineering geology detection method provided by the invention, the geological condition in the tunnel can be conveniently and quickly surveyed through the arranged detection equipment, and meanwhile, the radar detector is driven by the arranged transmission mechanism to continuously detect the surface of the rock mass in the tunnel, so that the continuity and the accuracy of the detection equipment in the geology detection are greatly improved.
2. According to the engineering geology detection method provided by the invention, the movable plate is arranged between the sliding table and the radar detector, so that the movable plate can drive the radar detector to be in contact with the surface of a rock body, the self-adjusting capacity of the detection equipment under different geological conditions is enhanced, and the stability and the accuracy of the detection equipment in working are greatly enhanced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a diagram of the steps of the present invention;
FIG. 2 is a schematic perspective view of a detection apparatus of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a top view of the detection apparatus of the present invention;
FIG. 5 is a schematic view of the structure of the detecting device of the present invention;
FIG. 6 is an enlarged view at B in FIG. 5;
in the figure: the device comprises a movable base 1, a pneumatic push rod 11, a supporting plate 12, a motor 13, a ball screw 14, a supporting table 15, a guide rod 16, a sliding sleeve 17, a limiting rod 18, a supporting rod 2, a fixed rod 21, a movable rod 22, a sliding groove 23, a sliding rod 24, a first spring 25, a sliding table 3, a radar detector 31, a movable plate 32, a second spring 33, a positioning rod 34, a positioning groove 35, a protective cover 36, a protective ring 37 and a fastening bolt 4.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-6, the method for engineering geological exploration according to the present invention comprises the following steps:
s1: moving the detection equipment into a tunnel region to be detected, and then driving a radar detector 31 on the top sliding table 3 to move upwards through a pneumatic push rod 11 and attach to the rock surface at the top end of the tunnel; in order to more accurately and effectively detect the geological condition in the tunnel, the radar detector 31 is often required to be tightly attached to the surface of the rock mass, and at the moment, the radar detector 31 is attached to the surface of the rock mass through the pneumatic push rod 11 on the detection equipment and can be freely adjusted along with the height of the tunnel, so that the convenience and the accuracy of detection of the geological condition in the tunnel are improved;
s2: after the radar detector 31 moves to detect the rock mass surface in S1, the controller controls the radar detector 31 to survey the rock mass surface, and the rotation of the motor 13 drives the radar detector 31 to continuously survey the rock mass surface of the tunnel in the width direction; the rotation of the motor 13 on the detection equipment drives the radar detector 31 to carry out continuous survey on the surface of the rock mass, so that the continuity and the accuracy in the geological detection process are further improved;
s3: after the radar detector 31 finishes surveying the rock mass surface of the tunnel in the width direction in S2, the radar detector 31 moves the tunnel in the length direction and surveys the rock mass surface of the tunnel by pushing the base trolley; the exploration position of the radar detector 31 is conveniently and quickly adjusted by moving the trolley of the base 1, so that the working efficiency and the working quality of the detection equipment are effectively improved;
the detection device used in the S1 comprises symmetrically arranged movable bases 1, wherein pneumatic push rods 11 are arranged on the top surfaces of the movable bases 1, and the top ends of the pneumatic push rods 11 are connected with support rods 2; the support rod 2 consists of a fixed rod 21 and a movable rod 22, a sliding groove 23 is formed in the top end of the fixed rod 21, a sliding rod 24 matched with the sliding groove 23 is arranged on the bottom surface of the movable rod 22, the bottom end of the sliding rod 24 is located inside the sliding groove 23 and can freely slide inside the sliding groove, a first spring 25 is connected between the top surface of the fixed rod 21 at the outer end of the sliding rod 24 and the bottom surface of the movable rod 22, support plates 12 are connected to the top ends of the movable rods 22, a motor 13 is installed on the top surface of one of the support plates 12, a ball screw 14 is connected to the end portion of the motor 13, a support table 15 is connected to the support plate 12 corresponding to the other end of the ball; the middle part of the ball screw 14 is connected with a sliding table 3 in a sliding way, and a radar detector 31 capable of surveying the tunnel geological condition is arranged on the top surface of the sliding table 3; a guide rod 16 is fixedly connected between the two symmetrical support plates 12, a sliding sleeve 17 is slidably connected to the side surface of the guide rod 16 at a position corresponding to the sliding table 3, and a limit rod 18 is connected between the sliding sleeve 17 and the sliding table 3; the controller is arranged on the movable base 1 and used for controlling the automatic operation of the detection equipment; when the device works, the traditional radar detector 31 is attached to the surface of a rock body and is detected by adopting a manual lifting mode, the radar detector 31 can deal with different geological conditions, but the method is time-consuming and labor-consuming, and the problems of discontinuity in the detection process, single detection line direction and the like caused by human factors are solved; when the detection device works, firstly, the mobile base 1 is pushed to move the detection device to a tunnel area to be detected, then the controller controls the pneumatic push rod 11 to drive the support plate 12 at the top end of the support rod 2 to move upwards, so that the radar detector 31 between the two support plates 12 moves upwards and is attached to the surface of a detected rock mass at the top end of the tunnel, at the moment, the radar detector 31 attached to the surface of the detected rock mass can effectively improve the detection quality of the radar detector on the internal geology of the tunnel, and due to the unevenness of the top wall of the tunnel, when the two symmetrically arranged support platforms 15 are not positioned on the same horizontal line on the uneven top wall of the tunnel, the bottom end of the movable rod 22 is in a mode that the movable rod 22 is connected with the fixed rod 21, so that the slide rod 24 is driven by the bottom end of the movable rod 22 under the action of the first spring 25 to slide in the chute 23, and the top, therefore, the supporting plates 12 at the two ends of the radar detector 31 can adapt to rock mass surfaces of different heights of the tunnel, and the radar detector 31 is attached to the surface of the detected rock mass, so that the stability and the accuracy of the detection equipment in working are improved; and after radar detecter 31 accomplishes the geological survey of specific rock mass, controller control motor 13 drives ball screw 14 and rotates this moment, make ball screw 14 drive radar detecter 31 on slip table 3 when rotating and remove on the tunnel width direction, thereby make radar detecter 31 can carry out continuity survey to the rock mass surface on the tunnel width direction, simultaneously with slip table 3 through gag lever post 18 connection on gliding sliding sleeve 17 on guide bar 16, when making slip table 3 carry out the steady slip when ball screw 14 rotates, also can carry out spacing to the radial ascending rotation of radar detecter 31 at slip table 3 top, make radar detecter 31 can be stabilized and laminate mutually with the rock mass surface and carry out effectual work, and after radar detecter 31 accomplishes the rock mass surface on the tunnel width direction, survey and survey the base 1 through promoting to move and make radar detecter 31 move the tunnel along length direction and carry out reconnaissance to its rock mass surface Survey to can the omnidirectional survey the inside geology of tunnel, convenient and fast also can improve continuity and accuracy when the inside geology of tunnel surveys greatly.
As an embodiment of the present invention, a movable plate 32 is disposed between the top surface of the sliding table 3 and the radar detector 31, the radar detector 31 is mounted on the top surface of the movable plate 32, and a set of second springs 33 which are annularly and uniformly distributed are connected between the bottom surface of the movable plate 32 and the top surface of the sliding table 3; the during operation, when the backup pad 12 at slip table 3 both ends leads to radar detector 31 and the rock mass at top to produce great distance under the extrusion of tunnel roof protrusion piece, install No. two springs 33 on fly leaf 32 bottom surface this moment and can drive its upward movement to make the synchronous upward movement of radar detector 31 that upward movement's fly leaf 32 can drive the top until laminating mutually with the rock mass roof, further strengthened the self-adjusting ability of detection equipment under different geological conditions, and then strengthened the stability and the accuracy of detection equipment during operation greatly.
As an embodiment of the present invention, a positioning rod 34 is connected to the bottom surface of the movable plate 32, a positioning groove 35 matched with the positioning rod 34 is arranged on the top surface of the sliding table 3 corresponding to the bottom end of the positioning rod 34, and the bottom end of the positioning rod 34 is located inside the positioning groove 35 and can freely slide inside the positioning groove 35; the during operation, when ball screw 14 drives radar detection ware 31 on the slip table 3 and removes the reconnaissance time measuring along tunnel width direction, unevenness's tunnel roof rock piece is easy to exert horizontal pressure and make it take place horizontal offset to fly leaf 32 lateral wall this moment, thereby make radar detection ware 31 on the fly leaf 32 top surface take place the skew thereupon and influence its stable detection to the geology, locating lever 34 and constant head tank 35 through setting up this moment, make locating lever 34 that is located constant head tank 35 inside not influence fly leaf 32 and the upward motion of radar detection ware 31 vertical direction, can carry on spacingly to displacement on both horizontal directions again, thereby make radar detection ware 31 can stabilize effectual geology to tunnel inside and survey, further strengthened the stability and the accuracy of detection device during operation.
As an embodiment of the present invention, a protective cover 36 capable of covering the movable plate 32 is disposed at the top end of the movable plate, and the protective cover 36 is configured in an arc shape; the during operation, because radar detecter 31 produces wearing and tearing easily when sliding on the tunnel roof, and the fly leaf 32 that sets up also produces great resistance with convex detritus easily, thereby influence slip table 3 and drive that radar detecter 31 is smooth and slide on the rock mass surface, hemisphere protection casing 36 through setting up this moment, not only make protection casing 36 can effectually protect radar detecter 31 surface, reduce its wearing and tearing that lead to with the direct extrusion contact in rock mass surface, and curved protection casing 36 also makes it more easily and stable the sliding on unevenness's rock mass, thereby it dies to reduce the card of radar detecter 31 and fly leaf 32 between the lug detritus, the stability and the high efficiency of detection device during operation have been strengthened greatly.
As an embodiment of the present invention, the protective cover 36 is made of an elastic rubber material, and an annular protective ring 37 is disposed at the outer edge of the movable plate 32; the during operation, make through setting protection casing 36 to elastic rubber materials, play certain cushioning effect when making protection casing 36 and the rock mass of tunnel roof extrude each other, thereby reduce the rigidity impact that the rock mass surface produced protection casing 36 and the wearing and tearing that the extrusion leads to, and through set up annular guard ring 37 in fly leaf 32 outward flange department, make guard ring 37 can protect locating slot 35 that is located inside, reduce protection casing 36 and lead to the rock soil piece to fall into to locating slot 35 inside and produce the influence to its work when the rock mass surface slides, thereby further improvement the life of detection equipment.
As an embodiment of the present invention, a fastening bolt 4 is connected to a side surface of the sliding sleeve 17 opposite to the limiting rod 18 through a screw thread, and the fastening bolt 4 can fix the sliding sleeve 17 on a side surface of the guide rod 16; the during operation, when radar detecter 31 moves and surveys time measuring along tunnel length direction, unevenness's detritus produces the extrusion easily to sliding sleeve 17 lateral wall on the tunnel cliff this moment thereby it drives slip table 3 and radar detecter 31 and produces the skew, and then influence radar detecter 31's detection effect, can carry out fixed fastening bolt 4 to it through setting up on sliding sleeve 17 this moment, move and survey time measuring along tunnel length direction at radar detecter 31, make it fix sliding sleeve 17 on guide bar 16 through screwing up fastening bolt 4 this moment, thereby make fixed sliding sleeve 17 fix slip table 3 that one side is connected, fixed slip table 3 this moment can make the radar detecter 31 at top carry out stable work when the motion, thereby further improved the inside geology of tunnel stability and the accuracy of surveying.
When the tunnel top wall detection device works, firstly, the movable base 1 is pushed to move the detection device to a tunnel area to be detected, then the controller controls the pneumatic push rod 11 to drive the support plate 12 at the top end of the support rod 2 to move upwards, so that the radar detector 31 between the two support plates 12 moves upwards and is attached to the surface of a detected rock mass at the top end of the tunnel, at the moment, the radar detector 31 attached to the surface of the detected rock mass can effectively improve the detection quality of the radar detector on the internal geology of the tunnel, and due to the unevenness of the tunnel top wall, when the two support platforms 15 which are symmetrically arranged are not positioned on the same horizontal line on the uneven tunnel top wall, at the moment, the support rod 2 is set into a mode that the movable rod 22 is connected with the fixed rod 21, so that the bottom end of the movable rod 22 drives the slide rod 24 to slide in the slide groove 23 under the action of the first spring, therefore, the supporting plates 12 at the two ends of the radar detector 31 can adapt to rock mass surfaces of different heights of the tunnel, and the radar detector 31 is attached to the surface of the detected rock mass, so that the stability and the accuracy of the detection equipment in working are improved; and after radar detecter 31 accomplishes the geological survey of specific rock mass, controller control motor 13 drives ball screw 14 and rotates this moment, make ball screw 14 drive radar detecter 31 on slip table 3 when rotating and remove on the tunnel width direction, thereby make radar detecter 31 can carry out continuity survey to the rock mass surface on the tunnel width direction, simultaneously with slip table 3 through gag lever post 18 connection on gliding sliding sleeve 17 on guide bar 16, when making slip table 3 carry out the steady slip when ball screw 14 rotates, also can carry out spacing to the radial ascending rotation of radar detecter 31 at slip table 3 top, make radar detecter 31 can be stabilized and laminate mutually with the rock mass surface and carry out effectual work, and after radar detecter 31 accomplishes the rock mass surface on the tunnel width direction, survey and survey the base 1 through promoting to move and make radar detecter 31 move the tunnel along length direction and carry out reconnaissance to its rock mass surface Survey to can the omnidirectional survey the inside geology of tunnel, convenient and fast also can improve continuity and accuracy when the inside geology of tunnel surveys greatly.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An engineered geological exploration method, comprising the steps of:
s1: the detection equipment is moved into a tunnel area to be detected, and then a radar detector (31) on the top sliding table (3) is driven to move upwards through a pneumatic push rod (11) and is attached to the surface of a rock body at the top end of the tunnel;
s2: after the radar detector (31) moves to detect the surface of the rock mass in S1, the controller controls the radar detector (31) to survey the surface of the rock mass, and the radar detector (31) is driven to continuously survey the surface of the rock mass in the width direction of the tunnel by the rotation of the motor (13);
s3: after the radar detector (31) finishes surveying the rock mass surface of the tunnel in the width direction in S2, the radar detector (31) moves the tunnel in the length direction and surveys the rock mass surface of the tunnel by pushing the base trolley;
the detection device used in S1 comprises symmetrically arranged movable bases (1), wherein pneumatic push rods (11) are mounted on the top surfaces of the movable bases (1), and the top ends of the pneumatic push rods (11) are connected with support rods (2); the supporting rod (2) consists of a fixed rod (21) and a movable rod (22), a sliding groove (23) is arranged at the top end of the fixed rod (21), a sliding rod (24) matched with the sliding groove (23) is arranged on the bottom surface of the movable rod (22), the bottom end of the sliding rod (24) is positioned in the sliding groove (23) and can freely slide in the sliding groove, a first spring (25) is connected between the top surface of the fixed rod (21) at the outer end of the sliding rod (24) and the bottom surface of the movable rod (22), the top ends of the movable rods (22) are connected with supporting plates (12), wherein the top surface of one of the supporting plates (12) is provided with a motor (13), the end part of the motor (13) is connected with a ball screw (14), a supporting platform (15) is connected on the supporting plate (12) corresponding to the other end of the ball screw (14), the end part of the ball screw (14) is rotationally connected with the support table (15); the middle part of the ball screw (14) is connected with a sliding table (3) in a sliding manner, and a radar detector (31) capable of surveying the tunnel geological condition is installed on the top surface of the sliding table (3); a guide rod (16) is fixedly connected between the two symmetrical support plates (12), a sliding sleeve (17) is slidably connected to the side surface of the guide rod (16) at a position corresponding to the sliding table (3), and a limiting rod (18) is connected between the sliding sleeve (17) and the sliding table (3); the mobile base (1) is provided with a controller, and the controller is used for controlling the automatic operation of the detection equipment.
2. An engineered geological exploration method according to claim 1, characterized in that: be equipped with fly leaf (32) between slip table (3) top surface and radar detector (31), radar detector (31) are installed on fly leaf (32) top surface, be connected with No. two spring (33) of a set of annular equipartition between fly leaf (32) bottom surface and slip table (3) top surface.
3. An engineered geological exploration method according to claim 2, characterized in that: the bottom surface of the movable plate (32) is connected with a positioning rod (34), a positioning groove (35) matched with the positioning rod (34) is formed in the top surface of the sliding table (3) corresponding to the bottom end of the positioning rod (34), and the bottom end of the positioning rod (34) is located in the positioning groove (35) and can freely slide in the positioning groove (35).
4. An engineered geological exploration method according to claim 3, characterized in that: the top end of the movable plate (32) is provided with a protective cover (36) capable of covering the movable plate, and the protective cover (36) is arc-shaped.
5. An engineered geological exploration method according to claim 4, characterized in that: the protective cover (36) is made of elastic rubber materials, and an annular protective ring (37) is arranged at the outer edge of the movable plate (32).
6. An engineered geological exploration method according to claim 1, characterized in that: the sliding sleeve (17) is connected with a fastening bolt (4) through threads on the side face opposite to the limiting rod (18), and the fastening bolt (4) can fix the sliding sleeve (17) on the side face of the guide rod (16).
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