CN111926778B - Prefabricated regular triangular terrace cast dam and construction method - Google Patents

Abstract

The invention relates to a prefabricated regular triangular platform throwing damming and construction method, wherein an integral template is adopted for preparing a regular triangular platform, and a bottom die connecting hole is arranged on an integral bottom die; the filling position of the dam bottom sand bag can be controlled through the inner guide groove pipe and the outer guide groove pipe, the filling position of the dam body sand bag is limited through the lateral position control plate, and the dam body sand bag is compacted through the compaction position control body and the transverse pressing plate; the position control body sliding plate can synchronously drive the fabric rotating shaft, the slope scraping plate and the sand supplementing groove pipe to move along the rolling and paving slide rail, and can synchronously complete the material supplementing and scraping of the sand and gravel leveling layer and the paving construction of the interface geotextile; the filling position of the regular triangular terrace is limited through the position control cover plate and the limiting vertical plate, and the lifting and filling construction of the regular triangular terrace can be carried out by means of the terrace lifting cage. The invention can effectively improve the on-site construction efficiency and reduce the construction difficulty.

Description

Prefabricated regular triangular terrace cast dam and construction method

Technical Field

The invention belongs to the technical field of dam body construction, and particularly relates to a prefabricated regular triangular platform throwing and building dam and a construction method.

Background

In the gravity type earth and rockfill dam construction process, the condition that a cast filling body is washed away by a water body often occurs, the engineering quantity of earth and rockfill is increased, and adverse effects are generated on the water area environment.

Compared with the conventional earth-rock mixed dam, the regular triangular frustum cast dam has the advantages of resource saving, high construction efficiency and the like, and although the regular triangular frustum cast dam is successfully applied to some projects, the regular triangular frustum cast dam is always a difficult point of project construction in the aspects of preparation and guided filling of the regular triangular frustum cast dam; meanwhile, for dam engineering with higher requirement on impermeability, how to realize close fit between the regular triangular platform and other dam materials is also a difficulty in engineering control.

In order to improve the construction quality and efficiency of the regular triangular platform throwing and building dam, the invention provides a prefabricated regular triangular platform throwing and building dam and a construction method which can effectively improve the filling quality of a dam body sand bag and a dam bottom sand bag, improve the integrity and the field construction efficiency of a dam body structure and reduce the throwing and positioning difficulty of the regular triangular platform.

Disclosure of Invention

The invention aims to provide a prefabricated regular triangular platform throwing dam and a construction method, which can effectively improve the filling quality of a dam body sand bag and a dam bottom sand bag, improve the integrity of a dam body structure and the on-site construction efficiency, and reduce the throwing positioning difficulty of the regular triangular platform.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a construction method for building a dam by throwing a prefabricated regular triangular platform, which comprises the following steps:

step one, construction preparation: carrying out site survey, and determining the volume and shape parameters of the prefabricated regular triangular frustum;

step two, preparing a regular trigone table: pouring concrete into the integral template, and curing to form a regular triangular frustum block;

step three, guiding and filling the dam bottom sand bag: the method comprises the following steps that a supporting platform plate is formed by erecting the upper part of a dam foundation soil body in an underwater area, a fixed buttress and an adjustable buttress are sequentially arranged on the supporting platform plate from near to far away from the edge of the supporting platform plate, an inner guide groove pipe is inserted into a pipe cavity of an outer guide groove pipe, one end of a position control inhaul cable is connected with an inhaul cable connecting ring at the bottom end of the inner guide groove pipe, and the other end of the position control inhaul cable penetrates through the inhaul cable connecting ring at the top end of the outer guide groove pipe and then is connected with external rolling and pulling equipment; after the outer guide groove pipe is firmly connected with the rotary spherical hinges at the top ends of the fixed buttress and the adjustable buttress through the pipe side limiting hoops, the inclination angles of the outer guide groove pipe and the inner guide groove pipe are adjusted through the adjustable buttress, the extending length of the inner guide groove pipe is controlled through the position control inhaul cable, and then the dam bottom sand bag sequentially passes through the outer guide groove pipe and the inner guide groove pipe and then falls onto a dam foundation soil body in an underwater area;

step four, dam body sand bag position control filling: controlling a pressurizing device to extrude the dam body sand bag, and regulating and controlling the positions of a first compressing device and a second compressing device on a compaction transverse sliding beam to sequentially extrude the upper surface and the side surface of the stacked dam body sand bag;

step five, sand and pebble leveling layer and interface geotextile: paving a layer of sand-gravel leveling layer on the face of the dam body sand bag, leveling the sand-gravel leveling layer, and sequentially paving sand-gravel and interface geotextile on the sand-gravel leveling layer by controlling a paving device, wherein the paving device comprises a top sliding beam and a bottom sliding beam which are arranged on the surface of the dam body sand bag, and a frame which is formed by sequentially connecting two rolls of paving sliding rails and two integral sliding plates which are arranged oppositely end to end, the top sliding beam and the bottom sliding beam are respectively provided with a slope chute, the two integral sliding plates are respectively matched with the two slope chutes in a sliding manner, a sand supplementing box and a fabric rotating shaft are arranged on the frame, and the face geotextile is coiled on the fabric rotating shaft;

step six, throwing a regular triangular platform: a first oblique beam and a second oblique beam are arranged between the integral sliding plates of the top sliding beam and the bottom sliding beam, and a vertical sliding groove is arranged on the side wall of the second oblique beam facing the first oblique beam; a prismatic table bottom baffle is arranged on the side of the bottom sliding beam facing the top sliding beam; connecting a limiting vertical plate with a vertical sliding groove through a vertical plate connecting tenon; a position control cover plate is arranged between the first oblique beam and the limiting vertical plate which are opposite, the position control cover plate is connected with the first oblique beam and the limiting vertical plate through a flexible connecting belt, a plate top vibrator is arranged on the upper surface of the position control cover plate, and a prismatic table filling groove is arranged between the position control cover plate and the top sliding beam; through terrace with edge hoist and mount cage with regular trigone platform hoist and mount to terrace with edge fill groove's top, carry out the throwing of regular trigone platform and build the construction to adopt the vertical position of accuse position apron injectd regular trigone platform.

Further, during on-site survey, filling positions of the dam bottom sand bag and the dam body sand bag are determined; in the regular triangular table preparation process, air is injected into a joint interface of the integral template and the regular triangular table through the bottom die connecting hole, and the regular triangular table is separated from the integral template.

Furthermore, the pressurizing device comprises a compaction transverse sliding beam, a first compressing device and a second compressing device, the compaction transverse sliding beam is provided with a transverse sliding groove which penetrates through two ends of the compaction transverse sliding beam and is axially arranged, the upper ends of the first compressing device and the second compressing device are in sliding fit with the transverse sliding groove, and the other ends of the first compressing device and the second compressing device are in pressure-equalizing covering on the sand bag of the dam body.

Further, first closing device is including horizontal dull and stereotyped, compaction accuse body and the vertical pole of compaction, and the upper end of the vertical pole of compaction has the spout link plate, and spout link plate sliding fit is in horizontal spout, and horizontal spout is "protruding" shape groove, and the lower extreme of the vertical pole of compaction is contradicted in compaction accuse body, and the compaction is controlled the position and is pressed in horizontal dull and stereotyped, and horizontal dull and stereotyped pressure is on the surface of dam body sand bag.

Further, the second closing device mainly includes the spout link plate, the erector props the outer tube, erect and prop inner tube and side direction accuse position and tie, the spout link plate is connected to the one end of erector props the outer tube, spout link plate sliding fit is on compaction sideslip roof beam, erect and prop the one end of inner tube at the outer tube cover, wherein erect and prop the outward appearance of inner tube and still install the standpipe cuff, side direction accuse position board is installed to the one end of side direction accuse position and tie, side direction accuse position board supports and holds in dam body sand bag, the standpipe cuff is installed to the other end, the standpipe cuff cover is established on erecting and props the inner tube, concretely, the lower extreme of erecting and propping the inner tube is equipped with the bottom of pipe fagging, the bottom of pipe fagging is pressed on the bag top leveling layer on dam body sand bag.

Further, roll up and spread and have "T" type groove on the slide rail, sliding fit has accuse position body slide in "T" type groove, roll up and spread and install first accuse position body and second accuse position body on the slide rail, first accuse position body and second accuse position body all include slide linkage baffle, accuse position vertical baffle and accuse position jack, the base of accuse position jack is fixed on slide linkage baffle, the flexible end of accuse position jack is connected in accuse position vertical baffle, slide linkage baffle is "T" template, T "template one end welds in accuse position body slide, the cross-section of domatic spout personally submits" L "shape, the cross-section of integral slide personally submits" L "shape, install slotted interior gyro wheel on the contact surface of the tank bottom of integral slide and domatic spout, the notch department of domatic spout installs the baffle.

Furthermore, a position control transverse connecting plate is installed on the roll-spreading slide rail, the slide rail connecting baffle is connected to the position control transverse connecting plate, the position control transverse connecting plate is fixed on the roll-spreading slide rail through a connecting positioning bolt, the end part of the connecting positioning bolt is matched with a positioning bolt connecting groove formed in the roll-spreading slide rail, two ends of the sand make-up bin are respectively connected to two position control body sliding plates, a slope scraping plate is arranged on one side surface of the sand make-up bin, a row of sand make-up slot pipes are installed on the other side surface of the sand make-up bin, the inward space of the sand make-up bin is communicated with the sand make-up slot pipes, each sand make-up slot pipe is provided with a slot pipe position control bolt, and particularly, the slot pipe position control bolt adopts a stop valve.

Furthermore, both ends of the fabric rotating shaft are respectively matched with the connecting rolling shaft, the connecting rolling shaft is a rotating bearing, the rotating bearing is welded on the sliding plate of the position control body, a fabric positioning plate is further installed on the rolling and spreading sliding rail, a fabric top pressing plate is installed on the lower surface of the fabric positioning plate through a fabric positioning bolt, a through hole is formed in the fabric positioning plate, and a bolt bottom connecting groove corresponding to the through hole is formed in the fabric top pressing plate.

Further, in the sixth step, the first oblique beam and the second oblique beam are both formed by rolling steel plates or section steel, the first oblique beam is close to the regular triangular table side, and the bottom surface of the first oblique beam is flush with the top surface of the laid regular triangular table; the bottom of the frustum bottom baffle is connected with a dam bottom sand bag; the bottom end of the position control cover plate is connected with the frustum pyramid bottom baffle, and two side edges of the position control cover plate are connected with the flexible connecting band in a sticking way; the prismoid hoisting cage mainly comprises a hoisting cage upright post, a hoisting cage ring rib, a hoisting cage top beam and a hoisting cage bottom plate; the bottom plate pivot is installed to a side of cage bottom plate, the welding cage stand in the bottom plate pivot, constitute a rectangular frame by four cage back timber end to end in proper order, each corner all is equipped with a cage stand, wherein the end connection of two cage stands is in the both ends of bottom plate pivot, the tip of two other passes through a cage back timber and connects, a connection rings all welds in each corner of the rectangular frame that the cage back timber constitutes, bolt the cage hoist cable on the connection rings, at least three rings of cage ring muscle of welding on the terrace with edge hoist cage, weld and weld the interior surface department at the cage stand around four cage stands, set up the connecting rod jackbolt on the cage back timber, cooperate a connecting rod of unloading on the connecting rod jackbolt, the both ends of the connecting rod of unloading are connected respectively in cage bottom plate and cage back timber.

The prefabricated regular triangular platform is constructed by throwing and building the dam through the steps.

The invention has the following beneficial effects:

(1) the invention adopts the integral template to prepare the regular triangular frustum, and can synchronously complete the pouring of a plurality of regular triangular frustums; meanwhile, the integral bottom die is provided with the bottom die connecting hole, so that the difficulty of demolding construction of the regular triangular platform can be reduced.

(2) The invention can adjust the inclination angle of the outer guide groove pipe through the adjustable buttress, control the extension length of the inner guide groove pipe through the position control inhaul cable, and control the filling position of the dam bottom sand bag through the inner guide groove pipe and the outer guide groove pipe, thereby improving the accuracy of the filling position control of the dam bottom sand bag.

(3) The filling position of the dam body sand bag can be limited through the lateral position control plate, and the dam body sand bag is compacted through the compaction position control body and the transverse compacting plate, so that the filling positioning and compaction degree control quality of the dam body sand bag is improved.

(4) The position control body sliding plate can synchronously drive the fabric rotating shaft, the slope scraping plate and the sand filling groove pipe to move along the rolling and paving sliding rail, and meanwhile, sand filling and scraping of the sand-gravel leveling layer and paving construction of interface geotextile are completed, so that the efficiency of site construction is improved.

(5) The filling position of the regular triangular terrace can be limited through the position control cover plate and the limiting vertical plate, the lifting and filling construction of the regular triangular terrace can be carried out by means of the terrace lifting cage, and the difficulty of the filling construction of the regular triangular terrace can be effectively reduced.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a construction flow chart of the method for building a dam by throwing a prefabricated regular triangular platform;

FIG. 2 is a schematic diagram of a preparation construction structure of the regular triangular frustum of FIG. 1;

FIG. 3 is a top view of the regular trigonal table casting structure of FIG. 2;

FIG. 4 is a schematic structural diagram of the regular triangular frustum of FIG. 2;

FIG. 5 is a schematic view of a dam foundation sand bag guiding and filling construction device in FIG. 1;

FIG. 6 is a schematic diagram of a dam body sand bag filling construction structure in FIG. 1;

FIG. 7 is a schematic view of the connection structure of the chute hanging plate and the compacting cross sliding beam in FIG. 6;

FIG. 8 is a schematic view of the sand-pebble screed and interface geotextile construction of FIG. 1;

FIG. 9 is a schematic view of the connection structure of the slide rail connection baffle and the rolling and paving slide rail of FIG. 8;

FIG. 10 is a schematic view of the connection structure of the sand make-up bin and the sand make-up trough pipe in FIG. 8;

FIG. 11 is a schematic view of the top skid beam and the rolling and paving skid connection of FIG. 8;

FIG. 12 is a schematic view of the connection between the fabric positioning plate and the fabric top plate of FIG. 8;

FIG. 13 is a schematic plan view of the regular triangular terrace filling construction structure of FIG. 1;

FIG. 14 is a schematic cross-sectional view of the regular triangular terrace filling construction structure of FIG. 13;

FIG. 15 is a schematic structural view of the prismoid lifting cage of FIG. 1;

in the drawings, the components represented by the respective reference numerals are listed below:

1-dam bottom sand bag; 2-dam body sand bag; 3-regular triangular frustum pyramid; 4-integral form; 5-connecting holes of the bottom die; 6-supporting the platform plate; 7-fixing the buttress; 8-adjustable buttress; 9-inner guide groove tube; 10-outer guide groove tube; 11-position control inhaul cable; 12-stay cable connecting ring; 13-rotating the spherical hinge; 14-pipe side limiting hoop; 15-dam foundation soil body; 16-bag top leveling layer; 17-compacting the cross sliding beam; 18-bracing the outer tube; 19-chute hanging plates; 20-a transverse chute; 21-inner pipe position control hoop; 22-vertical supporting inner pipe; 23-a tube bottom support plate; 24-a sliding beam ballast body; 25-a standpipe ferrule; 26-lateral position control bolts; 27-a lateral position control plate; 28-transverse flattening plate; 29-compacting vertical bars; 30-compacting the control body; 31-sand and pebble leveling layer; 32-top skid beam; 33-bottom sliding beam; 34-rolling and paving a sliding rail; 35-an integral sled; 36-fabric positioning plate; 37-fabric top press plate; 38-interfacial geotextile; 39-a sand supplement bin; 40-connecting the rollers; 41-position control body sliding plate; 42-a sand supplementing groove pipe; 43-slope scraping plate; 44-a first control body; 45-a second control body; 46-a first oblique beam; 47-a second stringer; 48-vertical chutes; 49-frustum bottom baffles; 50-a limit vertical plate; 51-a vertical plate connecting falcon; 52-position control cover plate; 53-a flexible connecting strip; 54-plate top vibrator; 55-a prismatic table filling groove; 56-a prismoid hoisting cage; 57-frustum side mold; 58-integral bottom die; 59-template side supporting plate; 60-positioning corner plates; 61-an angle adjuster; 62-a spacing hoop bolt; 63-a limiting clamping plate; 64-pipe ring cap; 65-slope chute; 66-in-groove rollers; 67-fabric positioning pegs; 68-bolt bottom connecting groove; 69-fabric turning shaft; 70-position control jacks; 71-position control horizontal connecting plates; 72-position control vertical baffle plates; 73-slide rail connecting baffle; 74-connecting a positioning bolt; 75-a tank control position bolt; 76-cage columns; 77-cage ring reinforcement; 78-cage top beam; 79-cage floor; 80-connecting a lifting ring; 81-cage slings; 82-positioning bolt connecting grooves; 83-bottom plate rotating shaft; 84-a sole baffle; 85-a discharge connecting rod; 86-connecting rod top bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

The technical requirements of filling construction of the dam bottom sand bag 1 and the dam body sand bag 2, the technical requirements of regular triangular terrace pouring construction, the technical requirements of site hoisting construction, the technical requirements of profile steel rolling and welding construction, the technical requirements of bolt fastening construction and the like are not repeated in the embodiment, and the embodiment of the method related to the invention is mainly explained.

Referring to fig. 1-15, the present invention relates to a method for constructing a prefabricated regular triangular platform by throwing and building a dam:

firstly, construction preparation: determining the filling positions of the dam bottom sand bag 1 and the dam body sand bag 2 through site survey, determining the volume and shape parameters of the regular triangular platform 3, and preparing materials and devices required by construction;

secondly, preparing the regular trigone platform 3: preparing an integral template 4 according to the shape of the regular triangular platform 3, wherein; pouring concrete into a pouring template in the integral template 4, and curing to form a regular triangular platform 3 block; after the regular triangular platform 3 has formed strength, injecting air into the joint interface of the integral template 4 and the regular triangular platform 3 through the bottom die connecting hole 5 to complete demolding construction;

the integral template 4 can be used for simultaneously preparing a plurality of regular triangular platforms 3, the specific integral template 4 comprises a rectangular frame formed by four template side supporting plates 59 and an integral bottom die 58 with a bottom die connecting hole 5, the integral bottom die 58 is positioned at the bottom of the rectangular frame, pouring templates are sequentially arranged in the rectangular frame, the pouring templates are formed by enclosing three isosceles trapezoid prism platform side templates 57, positioning corner plates 60 are arranged at the connecting parts of the prism platform side templates 57, the template side supporting plates 59 and the integral bottom die 58, and the specific integral template 4 and components inside the integral template can be connected in a welding mode.

Correspondingly, the frustum side die 57, the integral bottom die 58 and the die plate side supporting plate 59 are all formed by rolling steel plates with the thickness of 3mm, the positioning angle plate 60 is formed by rolling steel plates with the thickness of 10mm, the cross section of the positioning angle plate is in a right trapezoid shape, and the height of the positioning angle plate is 10 cm.

Thirdly, guiding and filling the dam bottom sand bag 1: supporting and forming a supporting platform plate 6 on the upper part of a dam foundation soil body 15 of an underwater area by an external construction device; a fixed buttress 7 and an adjustable buttress 8 are sequentially arranged on the supporting platform plate 6 from near to far away from the edge of the supporting platform plate 6; firstly, inserting the inner guide groove pipe 9 into the pipe cavity of the outer guide groove pipe 10, then connecting one end of a position control inhaul cable 11 with an inhaul cable connecting ring 12 at the bottom end of the inner guide groove pipe 9, and connecting the other end of the position control inhaul cable with external rolling equipment after penetrating through the inhaul cable connecting ring 12 at the top end of the outer guide groove pipe 10; after the outer guide groove pipe 10 is firmly connected with the fixed buttress 7 and the rotary spherical hinge 13 at the top end of the adjustable buttress 8 through the pipe side limiting hoop 14, the inclination angles of the outer guide groove pipe 10 and the inner guide groove pipe 9 are adjusted through the adjustable buttress 8, the extension length of the inner guide groove pipe 9 is controlled through the position control inhaul cable 11, and then the dam bottom sand bag 1 sequentially passes through the outer guide groove pipe 10 and the inner guide groove pipe 9 and then falls onto a dam foundation soil body 15 in an underwater area;

supporting platform board 6 adopts thickness to form for 10 mm's steel sheet is rolling, support for it with the help of the pontoon, set up fixed buttress 7 and adjustable buttress 8 at supporting platform board 6's upper surface, its adjustable buttress 8's regulation power is provided by the hydraulic jack of angle adjusting body 61 30 tons promptly, specific adjustable buttress 8 is two pier bodies, connect through hydraulic jack between two pier bodies, and then adjust adjustable buttress 8's overall height through hydraulic jack.

The fixed buttress 7 is formed by rolling a steel pipe or profile steel with the diameter of 200mm, wherein a pipe side limiting hoop 14 is arranged on the outer guide groove pipe 10 through a limiting hoop bolt 62, a rotary spherical hinge 13 is further arranged on the pipe side limiting hoop 14, the rotary spherical hinge 13 is a universal spherical hinge, balls of the universal spherical hinge roll on grooves formed in the fixed buttress 7 and the adjustable buttress 8, and the outer guide groove pipe 10 and the inner guide groove pipe 9 are respectively formed by rolling steel pipes with the diameters of 377mm and 325 mm.

Specifically, the tube side position-limiting hoop 14 is rolled by a steel plate with the thickness of 2mm, the inner diameter of the tube side position-limiting hoop is the same as the outer diameter of the outer guide groove tube 10, the tube side position-limiting hoop 14 is sleeved on the outer guide groove tube 10 and can be locked by a position-limiting hoop bolt 62 after the position is determined,

the spacing hoop bolt 62 is a high-strength bolt with a diameter of 30 mm.

One or two rows of annularly arranged circle limiting clamping plates 63 are arranged at the top end of the inner guide groove pipe 9, two rows of annularly arranged limiting clamping plates 63 are also arranged at the bottom end of the outer guide groove pipe 10, the limiting clamping plates 63 are formed by rolling steel plates with the thickness of 10mm, and the height of the limiting clamping plates is 1/3 of the difference between the outer diameter of the inner guide groove pipe 9 and the inner diameter of the outer guide groove pipe 10; a pipe ring cap 64 is provided at the bottom end of the inner guide groove pipe 9.

The position control inhaul cable 11 is a steel wire rope with the diameter of 30 mm.

The stay cable connecting ring 12 is rolled into a ring shape by adopting smooth steel bars with the diameter of 10mm, the diameter of the ring is 10cm, and the ring is welded and connected with the pipeline ring cap 64 and the outer side wall of the outer guide groove pipe 10; the pipe ring cap 64 is rolled by a steel plate with the thickness of 2mm and is sleeved on the pipe wall of the inner guide groove pipe 9.

Fourthly, filling the dam body sand bag with position control: filling construction of dam body sand bags 2 is carried out on the dam foundation soil body 15 and the arranged dam bottom sand bags 1; preferably, a filling area on a dam foundation soil body 15 is above the water level, a compaction transverse sliding beam 17 is arranged at the top of a dam body sand bag 2 at the upper part of the filled dam body, specifically, a sliding beam weight 24 can be placed on the transverse sliding beam 17 for compaction, firstly, a vertical support outer pipe 18 and a sliding groove hanging plate 19 at the top end of the vertical support outer pipe slide to the upper part of a bag top leveling layer 16 along a transverse sliding groove 20 by the specific equipment of external push-pull equipment, then, the length of the vertical support inner pipe 22 extending out of the vertical support outer pipe 18 is controlled by an inner pipe position control hoop 21, and a pipe bottom supporting plate 23 is attached and connected with the bag top leveling layer 16; after the lateral position control bolt 26 and the lateral position control plate 27 are adjusted to a proper height through the standpipe hoop 25, the lateral position of the lateral position control plate 27 is adjusted through the lateral position control bolt 26; laying a bag top leveling layer 16 on the top surface of the dam body sand bag 2 at the filled lower part, limiting the transverse position of the dam body sand bag 2 by using a lateral position control plate 27, and then placing a transverse flattening plate 28 on the top surface of the dam body sand bag 2 at the same elevation position; the vertical compaction rod 29 is moved to the position right above the transverse compacting plate 28 through an external push-pull device, a compaction control body 30 is arranged between the transverse compacting plate 28 and the vertical compaction rod, and downward pressure is applied to the dam body sand bag 2 through the compaction control body 30.

Fifthly, setting a sand-pebble leveling layer and an interface geotextile: after filling the dam body sand bag 2, paving a layer of sand-gravel leveling layer 31 on the free face of the dam body sand bag 2 by using external filling equipment, primarily leveling the paved sand-gravel leveling layer 31, paving a top sliding beam 32 and a bottom sliding beam 33 on the outer surface of the sand-gravel leveling layer 31 respectively, and connecting two ends of two parallel rolling and paving sliding rails 34 with the top sliding beam 32 and the bottom sliding beam 33 through an integral sliding plate 35 respectively; a fabric positioning plate 36 is arranged between the two rolling and paving sliding rails 34, and the top position of an interface geotextile 38 is limited by a fabric jacking plate 37; the sand make-up bin 39 and the connecting roller 40 are respectively connected with the position control body sliding plate 41, one side of the sand make-up bin 39 is communicated with the sand make-up trough pipe 42, and the other side is connected with the slope scraping plate 43; the telescopic lengths of the first control body 44 and the second control body 45 are controlled alternately, so that the positions of the sand supplement box 39 and the connecting roller 40 are controlled; when the slippage of the sand make-up bin 39 and the connecting roller 40 is controlled, the sand make-up trough pipe 42 is synchronously adopted for sand make-up of the sand and gravel leveling layer 31, the slope scraping plate 43 scrapes the sand and gravel leveling layer 31 flat, and the rotation of the fabric rotating shaft 69 is used for the winding and laying construction of the interface geotextile 38;

the pressurizing device is used for compressing the dam body sand bags 2 when the dam body sand bags 2 are stacked, specifically, after the dam body sand bags 2 are paved with sand pebbles on the surface of a dam foundation soil body 15, sand pebble leveling and the interface geotextile 38 are paved on the dam body sand bags 2 through the paving device, wherein the dam foundation soil body 15 is built by cohesive soil in a hard plastic state, the interface geotextile 38 is made of reverse filter geotextile, the concrete interface geotextile 38 and the sand pebbles are paved simultaneously, the interface geotextile 38 is paved on the lower surface of the sand pebbles, the sand pebbles are scraped by the slope scraping plate 43 to form a sand pebble leveling layer, and the maximum particle size of the sand pebbles is 25 mm.

The pressurizing device comprises a compaction transverse sliding beam 17, a first compressing device and a second compressing device, the compaction transverse sliding beam 17 is provided with a transverse sliding groove 20 which penetrates through two ends of the compaction transverse sliding beam 17 and is axially arranged, the upper ends of the first compressing device and the second compressing device are in sliding fit with the transverse sliding groove 20, and the other ends of the first compressing device and the second compressing device are covered on the dam body sand bag 2 in a pressure-equalizing manner; the spreading device comprises a top sliding beam 32 and a bottom sliding beam 33 which are arranged on the surface of the dam body sand bag 2, and a frame which is formed by sequentially connecting two bottom sliding beams 34 and two integral sliding plates 35 which are arranged oppositely end to end, wherein both the top sliding beam 32 and the bottom sliding beam 33 are provided with slope sliding grooves 65, the two integral sliding plates 35 are respectively in sliding fit with the two slope sliding grooves 65, and a sand supplement bin 39 and a fabric rotating shaft 69 are arranged on the frame.

The first pressing device comprises a transverse pressing plate 28, a compaction control body 30 and a compaction vertical rod 29, wherein the upper end of the compaction vertical rod 29 is provided with a chute hanging plate 19, the chute hanging plate 19 is in sliding fit in a transverse chute 20, the transverse chute 20 is a convex groove, a dam body sand bag 2 is built on a dam foundation soil body 15, when the dam body sand bag 2 is built to a certain height, a compaction transverse sliding beam 17 is arranged at the top of the dam body sand bag 2 on the upper part of the filled dam body, a sliding beam compression body 24 is arranged at the top of the compaction transverse sliding beam 17, the compaction vertical rod 29 is moved to the position right above the transverse pressing plate 28 through an external push-pull device, the compaction control body 30 is arranged between the transverse pressing plate 28 and the compaction vertical rod 29, and downward pressure is applied to the dam body sand bag 2 through the compaction control body 30, wherein, in particular, when the dam body sand bag 2 is built, the dam body sand bag 2 is in a step shape, one end of the compaction transverse sliding beam 17 can directly lean against the high dam body sand bag 2, the other parts are overlapped, installed and supported by a transverse pressing plate 28, an I-shaped compaction control body 30 and a compaction vertical rod 29, a transverse chute 20 is axially arranged on a concrete compaction transverse sliding beam 17, a chute hanging plate 19 is installed at the upper end of the compaction vertical rod 29, the chute hanging plate 19 is matched in the transverse chute 20, the built dam body sand bag 2 is pressed downwards in the mode, and meanwhile, a lateral control plate 27 applies force to the side face of the dam body sand bag 2, so that the dam body built by the dam body sand bag 2 is more compact.

The second pressing device mainly comprises a chute hanging plate 19, a vertical support outer tube 18, a vertical support inner tube 22 and a lateral position control bolt 26, wherein one end of the vertical support outer tube 18 is connected with the chute hanging plate 19, the chute hanging plate 19 is in sliding fit on a compaction cross sliding beam 17, the vertical support outer tube 18 is sleeved at one end of the vertical support inner tube 22, a vertical tube hoop 25 is further installed on the outer surface of the vertical support inner tube 22, a lateral position control plate 27 is installed at one end of the lateral position control bolt 26, the lateral position control plate 27 abuts against the dam body sand bag 2, the vertical tube hoop 25 is installed at the other end of the lateral position control plate, the vertical tube hoop 25 is sleeved on the vertical support inner tube 22 to limit the length of the vertical support outer tube 18 sleeved on the vertical support inner tube 22, a tube bottom supporting plate 23 is arranged at the lower end of the specific vertical support inner tube 22, and the tube bottom supporting plate 23 is pressed on a bag top leveling layer 16 on the dam body sand bag 2.

The bottom sliding beam 34 is provided with a T-shaped groove, the T-shaped groove is internally and slidably matched with a position control body sliding plate 41, the bottom sliding beam 34 is provided with a first position control body 44 and a second position control body 45, the first position control body 44 and the second position control body 45 both comprise a sliding rail connecting baffle 73, a position control vertical baffle 72 and a position control jack 70, the base of the position control jack 70 is fixed on the sliding rail connecting baffle 73, the telescopic end of the position control jack 70 is connected with the position control vertical baffle 72, the sliding rail connecting baffle 73 is a T-shaped plate, and one end of the T-shaped plate is welded on the position control body sliding plate 41.

The rolling and paving slide rail 34 is provided with a position control transverse connecting plate 71, the slide rail connecting baffle plate 73 is connected with the position control transverse connecting plate 71, the position control transverse connecting plate 71 is fixed on the rolling and paving slide rail 34 through a connecting positioning bolt 74, and the end part of the connecting positioning bolt 74 is matched with a positioning bolt connecting groove 82 arranged on the rolling and paving slide rail 34.

Two ends of the sand make-up bin 39 are respectively connected to the two position control body sliding plates 41, a slope scraping plate 43 is arranged on one side surface of the sand make-up bin 39, a row of sand make-up trough pipes 42 are mounted on the other side surface of the sand make-up bin 39, the inward space of the sand make-up bin 39 is communicated with the sand make-up trough pipes 42, a trough pipe position control bolt 75 is arranged on each sand make-up trough pipe 42, and the specific trough pipe position control bolt 75 adopts a stop valve.

Two ends of the fabric rotating shaft 69 are respectively matched with the connecting rolling shaft 40, the connecting rolling shaft 40 is a rotating bearing, the rotating bearing is welded on the position control body sliding plate 41, and the surface geotextile 38 is coiled on the fabric rotating shaft 69.

The bottom sliding beam 34 is further provided with a fabric positioning plate 36, the fabric positioning plate 36 is provided with a through hole, the through hole is a threaded hole, a fabric positioning bolt 67 is matched in the through hole, the fabric positioning bolt 67 is matched with a bolt bottom connecting groove 68, and the bolt bottom connecting groove 68 is fixed on the fabric top pressure plate 37.

The fabric positioning plate 36 and the fabric top pressure plate 37 are both formed by rolling steel plates with the thickness, at least two fabric positioning bolts 67 are arranged, and the fabric positioning bolts 67 are formed by rolling high-strength screws with the diameter of 30mm and are connected with the fabric positioning plate 36 through threads; the bottom connecting groove 68 is screwed with the fabric positioning bolt 67 by adopting a nut matched with the fabric positioning bolt 67.

The cross section of the slope chute 65 is L-shaped, the cross section of the integral sliding plate 35 is L-shaped, a groove inner roller 66 is arranged on the contact surface of the groove bottom of the integral sliding plate 35 and the slope chute 65, a baffle is arranged at the notch of the slope chute 65 and used for preventing the integral sliding plate 35 from being out of the groove, and the groove inner roller 66 is connected with a universal ball wheel with the diameter of 20 mm.

The top sliding beam 32 and the bottom sliding beam 33 are both formed by rolling steel plates, the cross sections of the two ends are rectangular, and a slope sliding groove 65 connected with the integral sliding plate 35 is arranged on the middle section.

When the slippage of the sand make-up bin 39 and the connecting roller 40 is controlled, the sand make-up trough pipe 42 is synchronously adopted for sand make-up of the sand-gravel leveling layer 31, the slope scraping plate 43 scrapes the sand-gravel leveling layer 31 flat, and the rotation of the fabric rotating shaft 69 is used for the winding and laying construction of the interface geotextile 38.

Sixthly, casting a regular triangular platform: a first oblique beam 46 and a second oblique beam 47 are arranged between the integral sliding plates 35 of the top sliding beam 32 and the bottom sliding beam 33, wherein the side wall of the second oblique beam 47 facing the first oblique beam 46 is provided with a vertical sliding groove 48; a prism base baffle 49 is arranged on the side of the bottom sliding beam 33 facing the top sliding beam 32; the limiting vertical plate 50 is connected with the vertical sliding groove 48 through a vertical plate connecting tenon 51; a position control cover plate 52 is arranged between the first oblique beam 46 and the limiting vertical plate 50 which are opposite, the position control cover plate 52 is connected with the first oblique beam 46 and the limiting vertical plate 50 through a flexible connecting belt 53, a plate top vibrator 54 is arranged on the upper surface of the position control cover plate 52, and a prismatic table filling groove 55 is arranged between the position control cover plate 52 and the top sliding beam 32; the regular triangular terrace 3 is hoisted to the upper part of the terrace with edges loading groove 55 through the terrace with edges hoisting cage 56, the throwing construction of the regular triangular terrace 3 is carried out, and the vertical position of the regular triangular terrace 3 is limited by the position control cover plate 52.

Specifically, the terrace with edge lifting cage 56 mainly includes cage pillar 76, cage ring rib 77, cage top beam 78 and cage bottom plate 79; the hanging box that is used for adorning three prismatic table 3 in the specific prismatic table hoist and mount cage 56: a bottom plate rotating shaft 83 is installed on one side face of a cage bottom plate 79, the bottom plate rotating shaft 83 is a loose-leaf rotating shaft with the diameter of 10mm, cage upright columns 76 are welded on the bottom plate rotating shaft 83, four cage top beams 78 are sequentially connected end to form a rectangular frame, each corner is provided with one cage upright column 76, the end portions of the two cage upright columns 76 are connected to the two ends of the bottom plate rotating shaft 83, the other two end portions are connected through one cage top beam 78, each corner of the rectangular frame formed by the cage top beams 78 is welded with one connecting hanging ring 80, and a cage hanging rope 81 is bolted to the connecting hanging rings 80 to be hoisted through a crane.

In addition, at least three rings of cage ring ribs 77 are welded on the prismatic table hoisting cage 56, and the prismatic table hoisting cage is welded around four cage columns 76 and welded on the inner surfaces of the cage columns 76.

The top suspension cage beam 78 is provided with a connecting rod top bolt 86, the connecting rod top bolt 86 is made of a high-strength nut with the diameter of 30mm, the connecting rod top bolt 86 is matched with a discharging connecting rod 85, two ends of the discharging connecting rod are respectively connected to the bottom suspension cage plate and the top suspension cage beam, and the opening and closing of the bottom suspension cage plate 79 are controlled by the rotary feeding or retraction of the discharging connecting rod 85.

The rod bottom baffle 84 is formed by rolling a steel plate with the thickness of 10mm, and the upper surface of the rod bottom baffle is vertically welded and connected with the discharging connecting rod 85.

As shown with reference to figures 2 to 15,

preparing a regular triangular platform 3 by adopting an integral template 4, and arranging a bottom die connecting hole 5 on an integral bottom die 58; the filling position of the dam bottom sand bag 1 is controlled through the inner guide groove pipe 9 and the outer guide groove pipe 10, the filling position of the dam body sand bag 2 is limited through the lateral position control plate 27, and the dam body sand bag 2 is compacted through the compaction position control body 30 and the transverse compacting plate 28; the position control body sliding plate 41 can synchronously drive the fabric rotating shaft 69, the slope scraping plate 43 and the sand supplementing groove pipe 42 to move along the rolling and paving sliding rail 34, so that sand supplementing and scraping of the sand and gravel leveling layer 31 and paving construction of the interface geotextile 38 can be simultaneously completed; the filling position of the regular triangular terrace 3 can be limited through the position control cover plate 52 and the limiting vertical plate 50, and the lifting and filling construction of the regular triangular terrace 3 can be carried out by means of the prismatic terrace lifting cage 56.

The specification of the dam bottom sand bag 1 and the dam body sand bag 2 is 30cm multiplied by 70cm thickened canvas sand bags.

The regular triangular platform 3 is cast by concrete with the strength grade of C35, the side length of the bottom surface is 60cm, the side length of the top surface is 40cm, and the height is 50 cm.

The bottom die connecting hole 5 is circular and has a diameter of 2 cm.

The dam foundation soil body 15 is cohesive soil in a hard plastic state.

The bag top screed 16 is a well graded medium grit material.

The compaction transverse sliding beam 17 is formed by rolling a steel plate with the thickness of 10mm, and the width of the transverse section is 20cm, and the height is 10 cm; a T-shaped transverse sliding chute 20 connected with a sliding chute hanging plate 19 is arranged on the compaction transverse sliding beam 17, and the height of the transverse sliding chute 20 is 8 cm; the chute hanging plate 19 is formed by rolling a steel plate with the thickness of 10mm, has the width of 15cm and the length of 20cm, and is vertically welded and connected with the vertical support outer tube 18 and the compaction vertical rod 29.

The outer vertical bracing tube 18 and the vertical compacting rod 29 are made of steel tubes with a diameter of 200 mm. The inner vertical supporting pipe 22 is made of a steel pipe with the diameter of 180 mm.

The inner pipe position control hoop 21 and the standpipe hoop 25 both adopt steel pipe hoops with the inner diameter being the same as the outer diameter of the vertical support inner pipe 22.

The tube bottom supporting plate 23 is formed by rolling a steel plate with the thickness of 10mm

The sliding beam weight 24 adopts a concrete precast block.

The lateral position control bolt 26 is formed by combining a screw rod with the diameter of 60mm and a nut, and the fastening directions of the screw rods at the two ends of the nut are opposite.

The lateral position control plate 27 and the transverse pressing plate 28 are both formed by rolling steel plates with the thickness of 10mm, and the planes are rectangular.

The compaction control body 30 adopts a 30-ton hydraulic jack.

The sand-gravel leveling layer 31 is well-graded sand-gravel, and the maximum grain diameter is 25 mm.

The top sliding beam 32 and the bottom sliding beam 33 are both formed by rolling steel plates with the thickness of 10mm, the cross sections of the two ends are rectangular, and a slope sliding groove 65 connected with the integral sliding plate 35 is arranged on the middle section. Wherein, the cross section of the slope chute 65 is L-shaped, and is connected with the bottom surface of the integral slide plate 35 through an in-groove roller 66, and the in-groove roller 66 is connected with a universal ball wheel with the diameter of 20 mm.

The cross section of the integral sliding plate 35 is L-shaped and is formed by rolling a steel plate with the thickness of 10mm, one end of the integral sliding plate is connected with the rolling and paving slide rail 34 in a welding mode, and the other end of the integral sliding plate is connected with external rolling and pulling position control equipment.

The rolling and spreading slide rail 34 is formed by rolling a steel plate with the thickness of 4 mm.

The fabric positioning plate 36 and the fabric top pressure plate 37 are both formed by rolling steel plates with the thickness of 10mm, the widths of the steel plates are respectively 10cm and 15cm, a fabric positioning bolt 67 is arranged on the fabric positioning plate 36, a bolt bottom connecting groove 68 is arranged on the fabric top pressure plate 37, which faces to the fabric positioning plate 36 side, and the fabric positioning bolt 67 is formed by rolling a high-strength screw rod with the diameter of 30mm and is connected with the fabric positioning plate 36 through threads; the bottom connecting groove 68 is screwed with the fabric positioning bolt 67 by adopting a nut matched with the fabric positioning bolt 67.

The interface geotextile 38 employs a reverse filter geotextile.

The sand supplement box 39 is formed by rolling a steel plate with the volume of 1m3 and the thickness of 2mm, the lower surface of the sand supplement box is connected with the position control body sliding plate 41, and the position control body sliding plate 41 is formed by rolling a steel plate with the thickness of 10 mm.

The connecting rolling shafts 40 are rotating bearings, the connecting rolling shafts are connected with the position control body sliding plate 41 through steel bodies, fabric rotating shafts 69 are arranged between the connecting rolling shafts 40 opposite to each other in a mirror image mode, and the fabric rotating shafts 69 are bearings with the diameters of 30 mm.

The sand supplementing groove pipe 42 is formed by rolling a steel pipe with the diameter of 100mm, opening and closing are controlled through a groove pipe position control bolt 75, and a stop valve with the diameter of 100mm is adopted for the groove pipe position control bolt 75.

The slope scraping plate 43 is formed by rolling a steel plate with the thickness of 10 mm.

The first control body 44 and the second control body 45 respectively comprise a position control jack 70 and a position control transverse connecting plate 71, two ends of the position control jack 70 are respectively connected with a position control vertical baffle plate 72 and a sliding rail connecting baffle plate 73, and the position control vertical baffle plate 72 of the first control body 44 and the position control vertical baffle plate 72 of the second control body 45 are respectively connected with two ends of the position control body sliding plate 41. The position control jack 70 is a 10-ton hydraulic jack, and the position control transverse connecting plate 71 is formed by rolling a steel plate with the thickness of 10mm and is connected with the rolling and paving slide rail 34 through a connecting and positioning bolt 74.

The slide rail connecting baffle 73 and the position control vertical baffle 72 are both formed by rolling steel plates with the thickness of 10mm, the plane is T-shaped, and the bottom end of the slide rail connecting baffle is vertically welded and connected with the position control body slide plate 41. The connecting positioning bolt 74 is formed by rolling a steel pipe with the diameter of 30mm, the bottom end of the connecting positioning bolt can limit the position of the slide rail connecting baffle plate 73 after being inserted into the connecting groove 82 of the positioning bolt, and the diameter of the connecting groove 82 of the positioning bolt is 40 mm.

The first oblique beam 46 and the second oblique beam 47 are both formed by rolling H-shaped steel with the specification of 200 x 8 x 12, the first oblique beam 46 is close to the regular triangular platform 3 side, and the bottom surface of the first oblique beam 46 is flush with the top surface of the laid regular triangular platform 3.

Vertical chute 48 adopts the steel sheet rolling that thickness is 10mm to form, sets up the channel of being connected with riser connection falcon 51 of "T" shape on it, and riser connection falcon 51 adopts the steel sheet rolling that thickness is 10mm to form, and the cross section is "T" shape.

The frustum bottom baffle 49 is made of a concrete slab with the thickness of 30cm, and the bottom of the frustum bottom baffle is connected with the dam bottom sand bag 1.

The limiting vertical plate 50 is formed by rolling a steel plate with the thickness of 2 mm.

The position control cover plate 52 is formed by rolling a steel plate with the thickness of 2mm, the bottom end of the position control cover plate is connected with the frustum bottom baffle 49, and two side edges of the position control cover plate are connected with the flexible connecting bands 53 in a sticking mode.

The flexible connecting band 53 is cut from a rubber sheet having a thickness of 2 mm.

The plate-top vibrator 54 employs a plate-type surface vibrator.

The width of the terrace ridge filling groove 55 was 1.5m and the length was 3 m.

The cage ring rib 77 is formed by rolling a steel plate with the thickness of 2mm, and the height is 10 cm.

The cage top beam 78 is formed by rolling a steel plate with the thickness of 10mm, the width of the cage top beam is 20cm, and two ends of the cage top beam are vertically welded and connected with the cage upright 76.

The cage bottom plate 79 is formed by rolling a steel plate with the thickness of 10mm, one end of the cage bottom plate is connected with the cage upright post 76 through a bottom plate rotating shaft 83, and the other end of the cage bottom plate is placed on the rod bottom baffle 84.

The connection flying ring 80 is rolled into a ring shape by adopting a twisted steel bar with the diameter of 32mm, and the diameter of the ring is 10 cm.

The cage slings 81 are wire ropes of 30mm diameter.

The bottom plate rotating shaft 83 is a loose-leaf rotating shaft with the diameter of 10 mm.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The construction method for building the dam by throwing the prefabricated regular triangular platform is characterized by comprising the following steps of:

step one, construction preparation: carrying out site survey, and determining volume and shape parameters of the prefabricated regular triangular frustum (3);

step two, preparing the regular triangular frustum pyramid (3): pouring concrete into the integral template (4), and curing to form a regular triangular frustum pyramid (3) block;

step three, guiding and filling the dam bottom sand bag: the method comprises the steps that a supporting platform plate (6) is erected on the upper portion of a dam foundation soil body (15) in an underwater area, a fixed buttress (7) and an adjustable buttress (8) are sequentially arranged on the supporting platform plate (6) from near to far away from the edge of the supporting platform plate (6), an inner guide groove pipe (9) is inserted into a pipe cavity of an outer guide groove pipe (10), one end of a position control inhaul cable (11) is connected to an inhaul cable connecting ring (12) at the bottom end of the inner guide groove pipe (9), and the other end of the position control inhaul cable penetrates through the inhaul cable connecting ring (12) at the top end of the outer guide groove pipe (10) and then is connected with external coiling and pulling equipment; after the outer guide groove pipe (10) is respectively and firmly connected with the fixed buttress (7) and the rotary spherical hinge (13) at the top end of the adjustable buttress (8) through the pipe side limiting hoop (14), firstly, the inclination angles of the outer guide groove pipe (10) and the inner guide groove pipe (9) are adjusted through the adjustable buttress (8), the extension length of the inner guide groove pipe (9) is controlled through a position control inhaul cable (11), and then the dam bottom sand bag (1) sequentially passes through the outer guide groove pipe (10) and the inner guide groove pipe (9) and then falls onto a dam foundation soil body (15) in an underwater area;

step four, position control filling of the dam body sand bag (2): controlling a pressurizing device to extrude the dam body sand bag (2), and regulating and controlling the positions of a first compressing device and a second compressing device on a compaction transverse sliding beam (17) to sequentially extrude the upper surface and the side surface of the stacked dam body sand bag (2);

step five, the sand-pebble leveling layer (31) and the interface geotextile (38) are as follows: paving a sand-gravel leveling layer (31) on the empty face of a dam body sand bag (2), leveling the sand-gravel leveling layer (31), paving sand-gravel and interface geotextile (38) on the sand-gravel leveling layer (31) in sequence by controlling a paving device, wherein the paving device comprises a top sliding beam (32) and a bottom sliding beam (33) which are arranged on the surface of the dam body sand bag (2), and a frame which is formed by sequentially connecting two oppositely-arranged roll paving sliding rails (34) and two integral sliding plates (35) end to end, the top sliding beam (32) and the bottom sliding beam (33) are respectively provided with a slope sliding chute (65), the two integral sliding plates (35) are respectively matched with the two slope sliding chutes (65) in a sliding manner, a sand supplementing bin (39) and a fabric rotating shaft (69) are arranged on the frame, and the face geotextile (38) is coiled on the fabric rotating shaft (69);

sixthly, casting the regular triangular frustum pyramid (3): a first oblique beam (46) and a second oblique beam (47) are arranged between the integral sliding plates (35) of the top sliding beam (32) and the bottom sliding beam (33), and a vertical sliding chute (48) is arranged on the side wall of the second oblique beam (47) facing the first oblique beam (46); a prism base baffle (49) is arranged on the side of the bottom sliding beam (33) facing the top sliding beam (32); the limiting vertical plate (50) is connected with the vertical sliding groove (48) through a vertical plate connecting falcon (51); a position control cover plate (52) is arranged between the first oblique beam (46) and the limiting vertical plate (50) which are opposite, the position control cover plate (52) is connected with the first oblique beam (46) and the limiting vertical plate (50) through a flexible connecting belt (53), a plate top vibrator (54) is arranged on the upper surface of the position control cover plate (52), and a prismatic table filling groove (55) is arranged between the position control cover plate (52) and the top sliding beam (32); the regular triangular terrace (3) is hoisted to the position above a terrace filling groove (55) through a terrace hoisting cage (56), the throwing construction of the regular triangular terrace (3) is carried out, and the vertical position of the regular triangular terrace (3) is limited by a position control cover plate (52);

the pressing device comprises a compaction transverse sliding beam (17), a first pressing device and a second pressing device, the compaction transverse sliding beam (17) is provided with a transverse sliding groove (20) which penetrates through two ends of the compaction transverse sliding beam (17) and is axially arranged, the upper ends of the first pressing device and the second pressing device are in sliding fit with the transverse sliding groove (20), and the other ends of the first pressing device and the second pressing device are covered on the dam body sand bag (2) in a pressure-equalizing manner;

the first pressing device comprises a transverse pressing plate (28), a compaction control body (30) and a compaction vertical rod (29), a chute hanging plate (19) is arranged at the upper end of the compaction vertical rod (29), the chute hanging plate (19) is in sliding fit in a transverse chute (20), the transverse chute (20) is a convex groove, the lower end of the compaction vertical rod (29) is abutted against the compaction control body (30), the compaction control body (30) is pressed on the transverse pressing plate (28), and the transverse pressing plate (28) is pressed on the surface of the dam body sand bag (2);

the second compressing device mainly comprises a chute hanging plate (19), a vertical support outer tube (18), a vertical support inner tube (22) and a lateral position control bolt (26), one end of the vertical support outer tube (18) is connected with the chute hanging plate (19), the chute hanging plate (19) is in sliding fit on the compaction transverse sliding beam (17), the vertical support outer tube (18) is sleeved at one end of the vertical support inner tube (22), wherein erect the outward appearance of propping inner tube (22) and still install standpipe cuff (25), side direction accuse position board (27) are installed to the one end of bolt (26) are controlled to the side direction, side direction accuse position board (27) support and hold in dam body sand bag (2), standpipe cuff (25) are installed to the other end, standpipe cuff (25) cover is established on erectting inner tube (22), specifically, the lower extreme of erectting inner tube (22) is equipped with socle (23), socle (23) are pressed on bag top screed-coat (16) on dam body sand bag (2).

2. The method for constructing the dam by throwing the prefabricated regular triangular terrace according to the claim 1, characterized in that the filling positions of the dam bottom sand bag (1) and the dam body sand bag (2) are determined during on-site exploration; in the preparation process of the regular triangular frustum, air is injected into a joint interface of the integral template (4) and the regular triangular frustum (3) through the bottom die connecting hole (5) in a pressing mode, and the regular triangular frustum (3) is separated from the integral template (4).

3. The construction method for throwing and building the dam of the prefabricated regular triangular platform according to claim 1, wherein a T-shaped groove is formed on the rolling and paving slide rail (34), a position control body sliding plate (41) is in sliding fit in the T-shaped groove, a first position control body (44) and a second position control body (45) are installed on the rolling and paving slide rail (34), the first position control body (44) and the second position control body (45) respectively comprise a slide rail connecting baffle plate (73), a position control vertical baffle plate (72) and a position control jack (70), the base of the position control jack (70) is fixed on the slide rail connecting baffle plate (73), the telescopic end of the position control jack (70) is connected to the position control vertical baffle plate (72), the slide rail connecting baffle plate (73) is a T-shaped plate, one end of the T-shaped plate is welded to the position control body sliding plate (41), the cross section of the slope sliding groove (65) is L-shaped, and the cross section of the integral sliding plate (35) is L-shaped, the contact surface of the integral slide plate (35) and the groove bottom of the slope sliding groove (65) is provided with a groove inner roller (66), and the notch of the slope sliding groove (65) is provided with a baffle.

4. The construction method for throwing, building and damming the prefabricated regular triangular platform according to the claim 3, characterized in that a position control transverse connecting plate (71) is installed on a rolling and paving sliding rail (34), a sliding rail connecting baffle plate (73) is connected with the position control transverse connecting plate (71), the position control transverse connecting plate (71) is fixed on the rolling and paving sliding rail (34) through a connecting and positioning bolt (74), the end part of the connecting and positioning bolt (74) is matched with a positioning bolt connecting groove (82) formed on the rolling and paving sliding rail (34), two ends of a sand filling box (39) are respectively connected with two position control body sliding plates (41), one side surface of the sand filling box (39) is provided with a slope scraping plate (43), the other side surface is provided with a row of sand filling groove pipes (42), the inward space of the sand filling box (39) is communicated with the sand filling groove pipes (42), and each sand supplementing groove pipe (42) is provided with a groove pipe position control bolt (75), and particularly, the groove pipe position control bolt (75) adopts a stop valve.

5. The construction method for throwing, building and damming the prefabricated regular triangular platform according to the claim 3, wherein two ends of a fabric rotating shaft (69) are respectively matched with a connecting roller (40), the connecting roller (40) is a rotating bearing which is welded on a sliding plate (41) of a position control body, a fabric positioning plate (36) is further installed on a rolling and paving sliding rail (34), a fabric pressing plate (37) is installed on the lower surface of the fabric positioning plate (36) through a fabric positioning bolt (67), a through hole is formed in the fabric positioning plate (36), and a bolt bottom connecting groove (68) corresponding to the through hole is formed in the fabric pressing plate (37).

6. The construction method for throwing and building the dam of the prefabricated regular triangular frustum pyramid according to the claim 1, characterized in that in the sixth step, the first oblique beam (46) and the second oblique beam (47) are both formed by rolling steel plates or section steel, the first oblique beam (46) is close to the side of the regular triangular frustum pyramid (3), and the bottom surface of the first oblique beam (46) is flush with the top surface of the laid regular triangular frustum pyramid (3); the bottom of the frustum bottom baffle (49) is connected with the dam bottom sand bag (1); the bottom end of the position control cover plate (52) is connected with the prism table bottom baffle (49), and two side edges of the position control cover plate (52) are connected with the flexible connecting band (53) in a sticking way; the prismoid hoisting cage (56) mainly comprises a cage upright post (76), a cage ring rib (77), a cage top beam (78) and a cage bottom plate (79); a bottom plate rotating shaft (83) is installed on one side face of a cage bottom plate (79), cage upright columns (76) are welded on the bottom plate rotating shaft (83), four cage top beams (78) are sequentially connected end to form a rectangular frame, each corner is provided with one cage upright column (76), the end parts of the two cage upright columns (76) are connected to the two ends of the bottom plate rotating shaft (83), the end parts of the other two cage upright columns are connected through one cage top beam (78), each corner of the rectangular frame formed by the cage top beams (78) is welded with one connecting lifting ring (80), cage lifting cables (81) are bolted on the connecting lifting rings (80), at least three rings of cage ring ribs (77) are welded on a prismatic table lifting cage (56), the four cage upright columns (76) are welded and welded on the inner surface of the cage upright columns (76), connecting rod top bolts (86) are arranged on the cage top beams (78), and discharging connecting rods (85) are matched on the connecting rod top bolts (86), two ends of the discharging connecting rod (85) are respectively connected with the suspension cage bottom plate (79) and the suspension cage top beam (78).

7. The prefabricated regular triangular terrace throwing and damming construction method is characterized by being constructed by the construction method for the prefabricated regular triangular terrace throwing and damming construction according to any one of claims 1 to 6.

Images