CN108951528B - Method for carrying out emergency rescue by utilizing depth-limiting access bridge - Google Patents
Method for carrying out emergency rescue by utilizing depth-limiting access bridge Download PDFInfo
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- CN108951528B CN108951528B CN201810905449.0A CN201810905449A CN108951528B CN 108951528 B CN108951528 B CN 108951528B CN 201810905449 A CN201810905449 A CN 201810905449A CN 108951528 B CN108951528 B CN 108951528B
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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Abstract
The invention relates to the field of flood prevention and emergency rescue in yellow river, in particular to a method for building a depth-limiting access bridge for emergency rescue. The temporary bridge building device can be rapidly assembled on site, the cage leg temporary bridge is built at the breach, the problems of low bearing capacity and inclination instability of the rapidly built temporary bridge are solved by using the bridge leg depth limiter, the breach of the dam can be effectively repaired within the first time, and the temporary bridge building device is light and rapid in transportation, simple in construction steps and wide in application range.
Description
Technical Field
The invention relates to the field of flood prevention and rescue of yellow river, in particular to a method for carrying out rescue by using a depth limiting access bridge, and the IPC international patent classification number is E02B 1/00.
Background
The river breach has great harm, for example, in 1998, rivers such as the Yangtze river, the Songhua river and the like in China successively generate extra flood, and great economic loss and casualties are brought to city counties around the river. The current breach blocking technology is adopted to block the breach finally. However, the cost of piling in torrent, such as river levee breach soft plugging (99115001.5) or ship and vehicle operation by personnel for sinking and leaking, such as dam break prevention and dam break plugging ship (201521008895.X), is very costly. Therefore, the high-efficiency and safe breach blocking characteristic of the bridge type emergency rescue and relief method changes the launching construction condition of the existing breach blocking construction technicians, reduces risks of the rescue workers, improves the construction efficiency and is worthy of popularization. But the legs of the temporary bridge are heavy and thin, and can be easily inserted into the river bottom flushed by torrent, and the bearing capacity is low, so that the bridge surface of the temporary bridge can gradually sink in emergency; or because the bridge legs are stressed unevenly in the sludge, the sinking depths of the bridge legs are different, so that the bridge deck of the temporary bridge is unstable, and the accident that people fall into water is easy to happen.
Disclosure of Invention
The invention aims to provide a method for carrying out dike breach rescue by utilizing a depth-limiting access bridge, which solves the problems of high risk, low efficiency and long construction period caused by various conventional personnel-requiring launching construction methods.
The technical solution of the invention is as follows:
the utility model provides an utilize limit for depth suspension bridge to carry out method of speedily carrying out rescue work, adopts portable bridge cage device of speedily carrying out rescue work and bridge leg depth limiter to build limit for depth suspension bridge and carry out the operation of speedily carrying out rescue work, portable bridge cage device of speedily carrying out rescue work includes picture peg module, drill steel post bridge pile module and locking module, picture peg module level concatenates and passes through drill steel post bridge pile module supports fixedly, locking module is in the same place picture peg module and drill steel post bridge pile module locking.
The drill rod column bridge pile module is formed by connecting drill rod units in series, wherein the drill rod units are of a cylindrical structure, connecting threads which are matched with each other are respectively processed at the bottom and the top of each drill rod unit, and a small-diameter part with the diameter smaller than the outer diameter of each drill rod unit is arranged at the lower end connecting part of each drill rod unit.
The locking module is composed of a lock body and a lock pin, the lock body is provided with a lock hole and a groove, the middle of the groove is provided with a bulge, and the bulge is matched with the small diameter of the drill rod unit.
The plate inserting module is formed by connecting plate inserting units in series, and each plate inserting unit is formed by combining an upper plate and a lower plate.
A row of jacks are respectively arranged on the left side and the right side of the lower plate, each row comprises two jacks, the diameter of the jack positioned in the front is matched with the diameter of the small diameter, and the diameter of the jack positioned in the rear is matched with the outer diameter of the drill rod unit; the left side and the right side of each row of the jacks are respectively provided with a supporting rib plate, the four supporting rib plates of the lower layer plate are respectively provided with a hole groove, and the shape of each hole groove is matched with the cross section shape of the lock pin.
The left side and the right side of the upper plate are respectively provided with two rows of jacks with the diameters matched with the outer diameters of the drill steel units, and the inner side of each row of jacks is respectively provided with a support rib plate.
The bridge leg depth limiter comprises a fixed block, a spring, a movable block, a fastening nut, an upper disc, a lower disc, a middle rotary disc, a fastening nail and a rotating shaft pin;
the fixed block is provided with a fastening nail groove and a movable block tail column hole penetrating through the fixed block, and the diameters of the fastening nail groove and the fastening nail are matched;
the movable block consists of a movable block tail column at the rear end and a movable block anti-rotation limiting head at the front end, the front end surface of the movable block anti-rotation limiting head is a middle turntable limiting arm matching surface, and the middle turntable limiting arm matching surface is a lock tongue type inclined surface; the diameter of the movable block tail column is matched with that of the movable block tail column hole, and the tail end of the movable block tail column is provided with a thread matched with a fastening nut;
the upper disc is disc-shaped, and an upper disc opening is arranged in the axial direction of the upper disc; the upper plate is also provided with an upper plate fastening nail hole and an upper plate rotating shaft pin hole, and the upper plate fastening nail hole and the upper plate rotating shaft pin hole are respectively provided with threads matched with the fastening nail and the rotating shaft pin.
The lower disc is a disc shape matched with the outer diameter of the upper disc, a lower disc opening is arranged in the axial direction of the lower disc, and the width of the lower disc opening is the same as that of the upper disc opening; a transfer plate groove and a movable block groove are formed in one surface, in contact with the upper plate, of the lower plate; and the lower disc is also provided with a lower disc rotating shaft pin hole corresponding to the upper disc rotating shaft pin hole in position, and the lower disc rotating shaft pin hole is provided with a thread matched with the rotating shaft pin.
The well carousel is the U-shaped, and the two arms of well carousel front end are one long and one short, are the spacing long arm of well carousel and the spacing short arm of well carousel respectively, and the bottom of well carousel is equipped with the well carousel pivot pinhole that matches with the pivot round pin, the top of the spacing long arm of well carousel and the spacing short arm of well carousel all is equipped with the spacing fitting surface of movable block, the spacing fitting surface phase-match of well carousel on spacing fitting surface of movable block and the movable block, the thickness of well carousel and the degree of depth phase-match of the transfer dish groove on the lower wall.
The construction steps are as follows:
a. assembling a bridge leg depth limiter: sequentially sleeving the spring and the fixed block on the movable block tail column through a central hole of the spring and a movable block tail column hole on the fixed block, connecting the spring and the fixed block through threads on the movable block tail column and a fastening nut to enable the spring to be in a compressed state, then placing the movable block in a movable block groove corresponding to a lower disc, placing a middle rotary disc in a middle rotary disc groove corresponding to the lower disc, and enabling a movable block limiting matching surface at the front end of a middle rotary disc limiting short arm to be opposite to a middle rotary disc limiting arm matching surface at the top end of the movable block; the upper disc is placed on the lower disc, an opening of the upper disc corresponds to an opening of the lower disc, the upper disc, the middle rotary disc and the lower disc are connected together through a rotating shaft pin, a fastening nail penetrates through a fastening nail hole of the upper disc and then is fixed in a fastening nail groove on the fixed block, and the movable block is limited in a movable block groove of the lower disc;
b. the first upper plate is placed on the first lower plate in a staggered mode, and two jacks in front of the first upper plate are aligned with two jacks in the back of the first lower plate to form two equal-diameter hole combinations; connecting a plurality of steel drill units in series to form two steel drill columns, respectively penetrating through the equal-diameter holes on two sides to be combined, and gradually driving the steel drill columns into soil at the base part of the breach dam by using a pile driver to form bridge legs;
c. b, directly clamping the bridge leg depth limiter assembled in the step a in a state to be locked at a small diameter of a bridge leg with a proper height, clockwise rotating the bridge leg depth limiter to enable the bridge leg depth limiter to be in a locked state, and then dropping the bridge leg depth limiter into soil at the base part of the breach dam along with the bridge leg to provide firm and stable support for a bridge body;
d. arranging a lock body between the support rib plates on the two sides of the lower plate, inserting the boss of the lock body into the small diameter, inserting a lock pin into a lock hole through a hole groove, and locking the drill rod unit and the lower plate together; then, placing a second upper plate in front of the first upper plate, and aligning two jacks behind the second upper plate with two jacks in front of the first lower plate to form two different-diameter hole combinations; inserting two groups of steel chisel units into the two reducing hole combinations, and inserting the first lower plate and the second upper plate together; the first lower layer plate, the first upper layer plate and the second upper layer plate form a first section of fixed upper bridge body;
e. the constructor stands on the upper bridge body fixed at the first section, and repeats the steps b-d until the depth-limiting temporary bridge is built;
f. after the temporary bridge is built, the plugging material is directly put into the temporary bridge by utilizing the blocking effect of a plurality of bridge legs of the temporary bridge on the plugging material, and the plugging operation construction is carried out.
Preferably, the lock pin and the lock hole are both provided with threads.
The invention has the following remarkable effects and advantages:
1. the portable rapid bridge building device after the breach of the dam is provided, the conventional rescue personnel launching construction is avoided, the construction risk of constructors is reduced, and the safety rate of the overall construction process for the breach blockage is improved;
2. the portable bridge cage emergency rescue and relief device and the bridge leg depth limiter are adopted, modularization is achieved, people can carry on their backs and move quickly, the device is assembled quickly, dependence on large machinery in emergency is reduced, and quick response capability of the people on duty is improved.
3. The bridge leg depth limiters are arranged at the proper height positions of the bridge legs, so that the contact area between the bridge legs and the water bottom can be increased rapidly, the bearing capacity of the emergency temporary bridge is improved remarkably, firm and stable support is provided for a bridge body, and effective guarantee is provided for subsequent emergency construction;
4. the uneven sinking of the emergency access bridge is blocked, the inclination instability of the emergency access bridge is effectively avoided, and the safety of the overall construction process of the access bridge type breach blocking is obviously improved;
5. the effective utilization rate of the plugging material can be greatly improved by utilizing the steel drill column bridge pile module, the probability that the plugging material is washed away by water is reduced, the construction efficiency is improved, and the construction period is shortened;
6. the rescue method can be applied to breach repair engineering of any water embankment, can effectively improve the safety of the conventional temporary bridge type rescue construction, has the advantages of simple and light structure, convenience for quick installation of personnel motor transportation and the like, has obvious benefits, and has larger popularization and application space.
Drawings
Fig. 1 is a schematic diagram of the portable bridge cage emergency device adopted by the invention after construction and assembly.
Fig. 2 is a schematic assembly diagram of modules of the emergency device of the portable bridge cage emergency device adopted by the invention.
Fig. 3 is a top view of a plugboard unit of the portable bridge cage emergency device adopted by the invention.
Fig. 4 is a plan view of a plugboard unit of the portable bridge cage rescue device adopted by the invention.
Fig. 5 is a schematic structural diagram of a steel bar unit of the portable bridge cage emergency device adopted by the invention.
Fig. 6 is a schematic structural diagram of a locking module of the portable bridge cage emergency device adopted by the invention.
FIG. 7 is a front elevational view of an assembly view of a bridge leg depth stop utilized in the present invention with the center rotatable disk in a position to be locked.
FIG. 8 is a front elevational view of an assembly view of a bridge leg depth stop utilized in the present invention with the center disk in a locked position.
FIG. 9 is a schematic view of a fixed block of a bridge leg depth stop used in the present invention.
FIG. 10 is a schematic view of a movable block of a bridge leg depth stop used in the present invention.
FIG. 11 is a schematic structural view of an upper plate of a bridge leg depth stop used in the present invention.
FIG. 12 is a schematic diagram of a configuration of a center disc in a bridge leg depth stop used in the present invention.
FIG. 13 is a schematic view of the configuration of the lower plate of the leg depth stop employed in the present invention.
FIG. 14 is an exploded view of a bridge leg depth stop employed in the present invention.
In the drawing, 1, a plug board module, 11, a plug board unit, 111, an equal-diameter hole combination, 112, a reducing hole combination, 113, a rear end chamfer, 114, a support rib plate, 115, a hole groove, 116, an upper plate, 117, a lower plate, 118, a front end chamfer, 2, a steel pillar bridge pile module, 21, a steel rod unit, 211, a connecting thread, 212, a small diameter part, 3, a locking module, 31, a lock body, 32, a lock pin, 33, a lock hole and 34, a boss; 41. the movable block comprises a fixed block 411, a fastening nail groove, 412, a movable block tail column hole, 42, a spring, 43, a movable block, 431, a movable block tail column, 432, a movable block anti-rotation limiting head, 433, a middle turntable limiting arm matching surface, 44, a fastening nut, 45, an upper disc, 451, an upper disc fastening nail hole, 452, an upper disc rotating shaft pin hole, 46, a lower disc, 461, a movable block groove, 462, a lower disc rotating shaft pin hole, 463, a middle turntable groove, 47, a middle turntable, 471, a middle turntable limiting long arm, 472, a middle turntable limiting short arm, 473, a middle turntable rotating shaft pin hole, 474, a movable block limiting matching surface, 48, a fastening nail and 49 rotating shaft pins.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings.
The utility model provides an utilize limit for depth suspension bridge to carry out method of speedily carrying out rescue work, adopts portable bridge cage device of speedily carrying out rescue work and bridge leg depth limiter to build limit for depth suspension bridge and carry out the operation of speedily carrying out rescue work, portable bridge cage device of speedily carrying out rescue work includes picture peg module 1, drill steel post bridge pile module 2 and locking module 3, 1 level of picture peg module is in series and passes through drill steel post bridge pile module 2 supports fixedly, utilizes locking module 3 locks picture peg module 1 and drill steel post bridge pile module 2 together.
The inserting plate module 1, the steel drill column bridge pile module 2 and the locking module 3 can be made of metal materials and high-strength non-metal materials.
The steel chisel column bridge pile module 2 is formed by connecting steel chisel units 21 in series, wherein the steel chisel units 21 are in a columnar structure, connecting threads 211 matched with each other are respectively processed at the bottom and the top of each steel chisel unit 21, and a small diameter part 212 with the diameter smaller than the outer diameter of each steel chisel unit 21 is arranged at the lower end connecting part of each steel chisel unit 21.
The locking module 3 is composed of a lock body 31 and a lock pin 32, the lock body 31 is provided with a lock hole 33 and a groove, the middle of the groove is provided with a bulge 34, the bulge 34 is matched with the small diameter part 212 of the drill rod unit 21, and the lock pin 32 and the lock hole 33 are both provided with threads.
The board inserting module 1 is formed by serially connecting board inserting units 11, and the board inserting units 11 are formed by combining an upper board 116 and a lower board 117.
The left side and the right side of the lower plate 117 are respectively provided with 1 row of jacks, each row is 2 jacks, wherein, the diameter of the jack positioned in the front (explaining that the extending direction when the bridge cage is assembled is the front, and vice versa) is matched with the diameter of the small diameter part 212 of the drill rod unit 21, and the diameter of the jack positioned in the rear is matched with the outer diameter of the drill rod unit 21; the left side and the right side of each row of the jacks are respectively provided with a supporting rib plate 114, 4 supporting rib plates 114 of the lower plate 117 are respectively provided with a hole groove 115, and the shape of each hole groove 115 is matched with the cross section shape of the lock pin 32.
The left side and the right side of the upper plate 116 are respectively provided with 1 row of jacks with the diameter matched with the outer diameter of the drill steel unit 21, each row is 2, and the inner side of each row of jacks is respectively provided with a supporting rib plate 114.
The length and the width of the upper plate 116 are equal to those of the lower plate 117, the suspended length of the two sides of the upper plate 116 is equal to the extending length of the lower plate 117, and the two plates in the middle are overlapped. When in use, the upper plate 116 and the lower plate 117 are staggered front and back, namely: the 2 jacks behind one lower plate 117 correspond to the 2 jacks in front of one upper plate 116 up and down to form an equal-diameter hole combination 111, and the 2 jacks in front of the same lower plate 117 correspond to the 2 jacks behind the other upper plate 116 up and down to form a different-diameter hole combination 112. The drill steel unit 21 passes through the reducing hole combination 112, the small diameter part 212 of the drill steel unit 21 is positioned in the lower layer insertion hole of the reducing hole combination, and the upper layer plate 116 and the lower layer plate 117 are fixed together. After being combined, a plurality of drill steel units 21 pass through the equal-diameter hole combination 111 to be inserted into underwater soil at a breach as a bridge pile, the lock body 31 is arranged between the support rib plates 114 on two sides of the lower plate 117, the bulge 34 of the lock body 31 is inserted into the small-diameter hole 212, the lock pin 32 passes through the hole groove 115 to be inserted into the lock hole 33, and the drill steel units 21 and the lower plate 117 are locked together.
The upper plate 116 and its support ribs 114 are provided with front end chamfers 118, the lower plate 117 and its support ribs 114 rear end chamfers 113, said front end chamfers 118 matching the rear end chamfers 113.
The bridge leg depth limiter comprises a fixed block 41, a spring 42, a movable block 43, a fastening nut 44, an upper disc 45, a lower disc 46, a middle rotary disc 47, a fastening nail 48 and a rotating shaft pin 49.
The fixing block 41 is cuboid and is provided with a fastening nail slot 411 and a movable block tail post hole 412 penetrating through the fixing block 41, and the diameter of the fastening nail slot 411 is matched with that of the fastening nail 48. The fixed block 41 may also be shaped as a quadrangular prism or any polygonal prism along the axial direction of the movable block tail hole 412.
The movable block 43 is composed of a movable block tail column 431 at the rear end and a movable block anti-rotation limiting head 432 at the front end, the front end face of the movable block anti-rotation limiting head 432 is a middle turntable limiting arm matching surface 433, and the middle turntable limiting arm matching surface 433 is a lock tongue type inclined surface and can also be a circular arc-shaped curved surface. The diameter of the movable block tail column 431 is matched with that of the movable block tail column hole 412, and the tail end of the movable block tail column 431 is provided with a thread matched with the fastening nut 44. The shape of the motion block anti-rotation stop head 432 should match the shape of the motion block recess 461 on the lower disk 46; the cross section of the rest part of the anti-rotation limiting head 432 except the matching surface 433 of the middle turntable limiting arm at the front end can be selected to be rectangular, square or other regular polygons.
The upper disc 45 is preferably in a disc shape, an upper disc opening is arranged in the axial direction of the upper disc 45, and the width of the upper disc opening is matched with the diameter of the small diameter part 212; the upper disc 45 is also provided with an upper disc fastening nail hole 451 and an upper disc rotating shaft pin hole 452, and the two holes are respectively provided with threads matched with the fastening nail 48 and the rotating shaft pin 49. The upper plate 45 may be any other table structure.
The lower disc 46 is a disc shape matched with the outer diameter of the upper disc 45, a lower disc opening is arranged on the lower disc 46 in the axial direction, and the width of the lower disc opening is the same as that of the upper disc opening; a transfer disc groove 463 and a movable block groove 461 are arranged on one surface of the lower disc 46, which is contacted with the upper disc 45, and the shape of the movable block groove 461 is matched with that of the movable block anti-rotation limiting head 432, so that the movable block 43 can move back and forth in the movable block groove 461; the shape of the transfer disc groove 463 is matched with that of the transfer disc 47; the lower disk 46 is further provided with a lower disk spindle pin hole 462 corresponding to the upper disk spindle pin hole 452, and the lower disk spindle pin hole 462 is provided with a thread matched with the spindle pin 49. The lower plate 46 may be any other platform structure with various additional structures on the bottom surface. .
The middle turntable 47 is U-shaped, two arms at the front end of the middle turntable 47 are respectively a middle turntable limiting long arm 471 and a middle turntable limiting short arm 472, the bottom end of the middle turntable 47 is provided with a middle turntable rotating shaft pin hole 473 matched with the rotating shaft pin 49, the top ends of the middle turntable limiting long arm 471 and the middle turntable limiting short arm 472 are respectively provided with a movable block limiting matching surface 474 matched with a middle turntable limiting arm matching surface 433 on the movable block 43, and the thickness of the middle turntable 47 is matched with the depth of the middle turntable groove 463 on the lower disc 46.
When the portable bridge cage emergency rescue device and the bridge leg depth limiter are used for carrying out dam breach emergency rescue, the construction steps are as follows:
a. assembling a bridge leg depth limiter: the spring 42 and the fixed block 41 are sequentially sleeved on the movable block tail post 431 through a central hole of the spring 42 and a movable block tail post hole 412 on the fixed block 41 and are connected through threads on the movable block tail post 431 and a fastening nut 44, so that the spring 42 is in a compressed state, then the movable block 43 is placed in a movable block groove 461 corresponding to the lower disc 46, the middle rotary disc 47 is placed in a middle rotary disc groove 463 corresponding to the lower disc 46, a movable block limiting matching surface 474 at the front end of a middle rotary disc limiting short arm 472 is opposite to a middle rotary disc limiting arm matching surface 433 at the top end of the movable block 43, and the bridge leg depth limiter is in a state to be locked; the upper plate 45 is placed on the lower plate 46, the upper plate 45, the middle rotary plate 47 and the lower plate 46 are connected together through a rotary shaft pin 49, and the fastening nail 48 is fixed in a fastening nail slot 411 on the fixed block 41 after passing through the upper plate fastening nail hole 451, so that the movable block 43 is limited in the movable block groove 461 of the lower plate 46.
b. Placing the first upper plate 116 on the first lower plate 117 in a staggered manner, and aligning the two jacks in front of the first upper plate 116 with the two jacks in back of the first lower plate 117 to form two equal-diameter hole combinations 111; connecting a plurality of drill steel units 21 in series to form two drill steel columns, respectively penetrating through the equal-diameter hole combinations 111 on two sides, and gradually driving the drill steel columns into soil at the base part of the breach dam by using a pile driver to form bridge legs;
c. the assembled bridge leg depth limiter in a to-be-locked state is directly clamped at a small diameter part 212 of a bridge leg with a proper height, the bridge leg depth limiter is clockwise rotated, the upper disc 45 and the lower disc 46 rotate along with the bridge leg depth limiter, the middle rotary disc 47 generates relative anticlockwise rotation relative to the upper disc 45 and the lower disc 46 due to the blocking of the bridge leg clamped in the middle of the middle rotary disc 47, the movable block 43 is pushed to automatically extend and retract in the movable block groove 461 of the lower disc 46 through the movable block limiting matching surface 474, the middle rotary disc 47 rotates around the rotary shaft pin 49 in the middle rotary disc groove 463 of the lower disc 46, finally, the bridge leg is clamped between the middle rotary disc limiting short arm 472 and the middle rotary disc limiting long arm 471, the middle rotary disc 471 is locked through the matching of the movable block anti-rotation limiting head 432 and the middle rotary disc limiting long arm 471, the depth limiter is in a locked state and then descends into the underwater sludge along with the bridge leg, and the depth limiter is extremely difficult to longitudinally penetrate into the soil layer, the bridge legs are extremely difficult to move transversely after penetrating into the river bottom soil layer, so that the movement of the bridge legs in all directions is limited, and firm and stable support is provided for the bridge body;
d. locking the bridge piles with the first lower plate 117 by using the locking module 3; then, a second upper plate 116 is placed in front of the first upper plate 116, so that two jacks behind the second upper plate 116 are aligned with two jacks in front of the first lower plate 117 to form two reducing hole combinations 112; inserting two groups of drill steel units 21 into the two reducing hole combinations 112, and inserting a first lower plate 117 and a second upper plate 116 together; the first lower plate 117, the first upper plate 116 and the second upper plate 116 form a first fixed upper bridge body;
e. the constructor stands on the upper bridge body fixed at the first section and repeats the steps b-d until the temporary bridge is built;
f. after the temporary bridge is built, the plugging material is directly put into the temporary bridge by utilizing the blocking effect of a plurality of bridge legs of the temporary bridge on the plugging material, and the plugging operation construction is carried out.
The flashboard units 11 are divided into a straight flashboard and a bent flashboard, and when the temporary bridge needs to change a certain angle along the river course, the flashboard units can be connected with the bent flashboard in the corresponding bending direction.
Claims (2)
1. A method for carrying out emergency rescue by utilizing a depth-limiting access bridge is characterized in that a portable bridge cage emergency rescue device and a bridge leg depth limiter are adopted to build the depth-limiting access bridge for carrying out emergency rescue operation, the portable bridge cage emergency rescue device comprises a plug board module (1), a steel drill post bridge pile module (2) and a locking module (3), the plug board module (1) is horizontally connected in series and supported and fixed through the steel drill post bridge pile module (2), and the locking module (3) locks the plug board module (1) and the steel drill post bridge pile module (2) together;
the steel chisel column bridge pile module (2) is formed by connecting steel chisel units (21) in series, wherein the steel chisel units (21) are of a columnar structure, connecting threads (211) which are matched with each other are respectively processed at the bottom and the top of each steel chisel unit (21), and a small diameter part (212) with the diameter smaller than the outer diameter of each steel chisel unit (21) is arranged at the lower end connecting part of each steel chisel unit (21);
the locking module (3) consists of a lock body (31) and a lock pin (32), the lock body (31) is provided with a lock hole (33) and a groove, the middle of the groove is provided with a bulge part (34), and the bulge part (34) is matched with the small diameter part (212) of the drill rod unit (21);
the plate inserting module (1) is formed by serially connecting plate inserting units (11), and each plate inserting unit (11) is formed by combining an upper plate (116) and a lower plate (117);
a row of jacks are respectively arranged on the left side and the right side of the lower plate (117), each row comprises two jacks, the diameter of the jack positioned in the front is matched with that of the small-diameter part (212), and the diameter of the jack positioned in the rear is matched with the outer diameter of the drill rod unit (21); a supporting rib plate (114) is arranged on each of the left side and the right side of each row of the jacks, a hole groove (115) is formed in each of the four supporting rib plates (114) of the lower plate (117), and the shape of each hole groove (115) is matched with the cross section shape of the lock pin (32);
the left side and the right side of the upper plate (116) are respectively provided with a row of jacks with the diameter matched with the outer diameter of the steel chisel unit (21), each row is provided with two jacks, and the inner side of each row of jacks is respectively provided with a support rib plate (114);
the bridge leg depth limiter comprises a fixed block (41), a spring (42), a movable block (43), a fastening nut (44), an upper disc (45), a lower disc (46), a middle rotary disc (47), a fastening nail (48) and a rotating shaft pin (49);
a fastening nail groove (411) and a movable block tail column hole (412) penetrating through the fixing block (41) are formed in the fixing block (41), and the diameters of the fastening nail groove (411) and the fastening nail (48) are matched;
the movable block (43) consists of a movable block tail column (431) at the rear end and a movable block anti-rotation limiting head (432) at the front end, the front end surface of the movable block anti-rotation limiting head (432) is a middle turntable limiting arm matching surface (433), and the middle turntable limiting arm matching surface (433) is a lock tongue type inclined surface; the diameter of the movable block tail column (431) is matched with that of the movable block tail column hole (412), and the tail end of the movable block tail column (431) is provided with a thread matched with a fastening nut (44);
the upper disc (45) is disc-shaped, and an upper disc opening is arranged in the axial direction of the upper disc (45); the upper disc (45) is also provided with an upper disc fastening nail hole (451) and an upper disc rotating shaft pin hole (452), and the upper disc fastening nail hole (451) and the upper disc rotating shaft pin hole (452) are respectively provided with threads matched with a fastening nail (48) and a rotating shaft pin (49);
the lower disc (46) is a disc shape matched with the outer diameter of the upper disc (45), a lower disc opening is arranged on the lower disc (46) in the axial direction, and the width of the lower disc opening is the same as that of the upper disc opening; a transfer disc groove (463) and a movable block groove (461) are arranged on one surface of the lower disc (46) which is contacted with the upper disc (45); the lower disc (46) is also provided with a lower disc rotating shaft pin hole (462) corresponding to the upper disc rotating shaft pin hole (452), and the lower disc rotating shaft pin hole (462) is provided with a thread matched with a rotating shaft pin (49);
the middle turntable (47) is U-shaped, two arms at the front end of the middle turntable (47) are respectively a middle turntable limiting long arm (471) and a middle turntable limiting short arm (472), a middle turntable rotating shaft pin hole (473) matched with a rotating shaft pin (49) is arranged at the bottom end of the middle turntable (47), movable block limiting matching surfaces (474) are arranged at the top ends of the middle turntable limiting long arm (471) and the middle turntable limiting short arm (472), the movable block limiting matching surfaces (474) are matched with middle turntable limiting arm matching surfaces (433) on the movable blocks (43), and the thickness of the middle turntable (47) is matched with the depth of a middle turntable groove (463) on the lower disc (46);
the construction steps are as follows:
a. assembling a bridge leg depth limiter: the spring (42) and the fixed block (41) are sequentially sleeved on the movable block tail post (431) through a center hole of the spring (42) and a movable block tail post hole (412) on the fixed block (41) and are connected through a thread on the movable block tail post (431) and a fastening nut (44), so that the spring (42) is in a compressed state, then the movable block (43) is placed in a movable block groove (461) corresponding to a lower disc (46), a middle rotary disc (47) is placed in a transfer disc groove (463) corresponding to the lower disc (46), and a movable block limiting matching surface (474) at the front end of a middle rotary disc limiting short arm (472) is opposite to a middle rotary disc limiting arm matching surface (433) at the top end of the movable block (3); the upper disc (45) is placed on the lower disc (46), the opening of the upper disc corresponds to the opening of the lower disc, the upper disc (45), the middle rotary disc (47) and the lower disc (46) are connected together through a rotary shaft pin (49), a fastening nail (48) penetrates through the upper disc fastening nail hole (451) and then is fixed in a fastening nail groove (411) on the fixed block (41), and the movable block (43) is limited in a movable block groove (461) of the lower disc (46);
b. the first upper plate (116) is placed on the first lower plate (117) in a staggered mode, and two jacks in the front of the first upper plate (116) are aligned with two jacks in the rear of the first lower plate (117) to form two equal-diameter hole combinations (111); a plurality of steel chisel units (21) are connected in series to form two steel chisel columns, the two steel chisel columns respectively penetrate through the equal-diameter hole combinations (111) on the two sides, and the steel chisel columns are driven into soil at the base part of the breach dam step by step through a pile driver to form bridge legs;
c. directly clamping the bridge leg depth limiter assembled in the step a in a state to be locked at a small diameter (212) with a proper height of a bridge leg, clockwise rotating the bridge leg depth limiter to enable the bridge leg depth limiter to be in a locked state, and then dropping the bridge leg depth limiter into soil at the base part of a breach dam along with the bridge leg to provide firm and stable support for a bridge body;
d. arranging a lock body (31) between support rib plates (114) on two sides of a lower plate (117), inserting a bulge (34) of the lock body (31) into a small diameter part (212), inserting a lock pin (32) into a lock hole (33) through a hole groove (115), and locking a steel rod unit (21) and the lower plate (117) together; then, placing a second upper plate (116) in front of the first upper plate (116), and aligning two jacks at the back of the second upper plate (116) with two jacks at the front of the first lower plate (117) to form two reducing hole combinations (112); inserting two groups of steel chisel units (21) into the two reducing hole combinations (112), and inserting a first lower plate (117) and a second upper plate (116) together; the first lower plate (117), the first upper plate (116) and the second upper plate (116) form a first fixed upper bridge body;
e. the constructor stands on the upper bridge body fixed at the first section, and repeats the steps b-d until the depth-limiting temporary bridge is built;
f. after the temporary bridge is built, the plugging material is directly put into the temporary bridge by utilizing the blocking effect of a plurality of bridge legs of the temporary bridge on the plugging material, and the plugging operation construction is carried out.
2. A method for rescuing from the deep access bridge as claimed in claim 1 wherein the lock pin (32) and the lock hole (33) are both threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810905449.0A CN108951528B (en) | 2018-08-09 | 2018-08-09 | Method for carrying out emergency rescue by utilizing depth-limiting access bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810905449.0A CN108951528B (en) | 2018-08-09 | 2018-08-09 | Method for carrying out emergency rescue by utilizing depth-limiting access bridge |
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| Publication Number | Publication Date |
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| CN108951528A CN108951528A (en) | 2018-12-07 |
| CN108951528B true CN108951528B (en) | 2020-05-22 |
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| CN201810905449.0A Expired - Fee Related CN108951528B (en) | 2018-08-09 | 2018-08-09 | Method for carrying out emergency rescue by utilizing depth-limiting access bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112227188B (en) * | 2020-10-07 | 2022-03-11 | 代潇男 | Bridge leg depth limiter suitable for emergency rescue and disaster relief at breach of dam in yellow river water conservancy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1242124C (en) * | 2004-01-19 | 2006-02-15 | 戎新国 | Water retaining dam wall quick assembled by levee crown cement pile for flood fighting |
| CN200982053Y (en) * | 2006-12-08 | 2007-11-28 | 武汉大学 | Reinforcing steel bar frame for plugging dam burst and dealing with emergency |
| CN101666073B (en) * | 2009-09-17 | 2011-02-02 | 黄河水利委员会黄河水利科学研究院 | Method for constructing river and lake levee breach closure with steel sheet pile |
| CN101949127A (en) * | 2010-09-29 | 2011-01-19 | 王贵宣 | Movable type rescue auxiliary bridge vehicle |
| CN102182161A (en) * | 2011-03-20 | 2011-09-14 | 胡洪新 | Device for blocking dike breach |
| CN103422423B (en) * | 2012-05-19 | 2016-01-20 | 交通运输部公路科学研究所 | The quick spelling bridge of sectional type modularization |
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