1181 results about "Water stop" patented technology

The invention relates to the field of construction of a tunnel invert, particularly relates to a construction method of fully pouring a tunnel invert, and solves the problems that the construction speed is low, the construction cost is high, and the construction quality does not achieve the requirements in the prior art. The construction method comprises the steps of measuring and lofting before excavating the tunnel invert, excavating the tunnel invert, preliminarily bracing the tunnel invert, primarily spraying concrete, and lofting an inverted arch steel locating bar; marking out a top elevation line of a small wall of the tunnel invert on a primary bracing surface of a lower bench, exerting force on inner and outer inverted rebars, and mounting a center concrete drainage pipe; mounting a set-shaped steel formwork at the tip of the tunnel invert; mounting a buried rubber water stop of a girth joint; mounting a longitudinal steel-edged water stop of the small wall of the tunnel invert; and pouring inverted arch concrete to construct by a slide chute, filling concrete into the tunnel invert to pour and finish the surface, circulating the procedures, and finishing the entire tunnel invert pouring construction. The construction method is low in construction cost, high in construction speed and strong in pertinence; the construction standard is improved; the construction quality is guaranteed; and the reference function is provided for specified construction of the tunnel invert of the domestic large cross-section passenger-dedicated tunnel at present.

The invention belongs to the technical field of bridge auxiliary members, and relates to a bridge expansion joint device. The bridge expansion joint device comprises left and right comb plate supporting beams, left and right comb plates, a water stop belt, left anchor bars and right anchor bars and further comprises a set of left supporting blocks and a set of right supporting blocks, wherein the set of left supporting blocks are distributed at intervals in the length direction of the left comb plate supporting beam and fixed through left comb plate fixing bolts, and the set of right supporting blocks are distributed at intervals in the length direction of the right comb plate supporting beam and fixed through right comb plate fixing bolts; a left water stop belt embedding base is fixed to one side, facing the right comb plate supporting beam, of the left comb plate supporting beam, a right water stop belt embedding base is fixed to one side, facing the left comb plate supporting beam and corresponding to the left water stop belt embedding base, of the right comb plate supporting beam, and the water stop belt is embedded between the left water stop belt embedding base and the right water stop belt embedding base. It is avoided that shear force on bolts of the left and right comb plates is generated in the heat expansion and cold contraction process of a bridge floor and a bridge abutment, the water stop belt is convenient to install and replace, operation intensity is relieved, and construction efficiency is improved.

The invention discloses a well sealing method of a dewatering well at a bottom of a foundation pit. The method comprises the following steps: a pumping test is performed for the dewatering well required to be sealed; the depth of the well is measured; a dewatering well pipe (5) is coated with a steel pipe (8) having a water stop wing (7); a waterproof plate (4) at the bottom of the foundation pit is fully welded on the steel pipe; water is pumped with high capacity or the water is pumped by putting in a water filter tank (11); a filler is arranged and compacted; a steel plate is fully welded on the water stop wing of the steel pipe; a stressed rib at the inner edge of a baseplate is connected; and concrete is poured for sealing. The well sealing method of the dewatering well at the bottom of the foundation pit, provided by the invention, overcomes the defect of incomplete well sealing technology in the foundation pit construction, proposes a well sealing scheme for specific conditions of various dewatering wells in the foundation pit engineering, is clear in operation steps, is convenient and economical, and is excellent in promotion and application values.

The invention provides a system for automatically draining water on a slide slope and a method therefor. The system comprises an energy storing device, a triggering device and a drainage device, wherein the energy storing device comprises a water storage tank, an energy storage tank, a water outlet pipe, a water stopping plug and the like; the triggering device comprises a suspension cylinder, a rigid suspension cylinder rod, a guide cylinder, an elastic connecting rope, a guide rod, a floating ball, a rigid pressing rod and the like; and the drainage device comprises a water pumping pipe, a drainage pipe and the like. The system is placed at the upper portion of a converging hole of a step of the side slope, when a water level in the converging hole reaches a designed automatic drainage starting water level, the triggering device is started, the water stopping plug is opened, water stored in the energy storage tank flows into the drainage pipe, and when the drainage pipe is filled with the stored water and the water stopping plug is closed, a siphonage phenomenon appears in the system, and accumulated water in the converging hole is discharged to the lower portion of the side slope through the water pumping pipe and the drainage pipe. According to the system, the structure is simple, energy sources such as electric energy, solar energy and wind energy are not required, the system is provided with no precise component or quick-wear part, good adaptability for drainage of various side slopes in the wild is achieved, drainage construction is achieved, the management is simple, the cost is low, and the drainage effect is good.

The invention discloses a mini-pile combined support structure and a construction method thereof. The mini-pile combined support structure comprises a crown beam, a mini pile, a mixing pile and a grouting anchor rod. The mixing pile is connected with the mini pile through the crown beam, and a grouting steel tube is inserted into the mixing pile, so that water stop effect can be realized, and bending resistance of an enclosing structure can be improved. Support points of the enclosing structure are increased by the grouting anchor rod, so that deformation of the enclosing structure can be further controlled.

The invention belongs to the technical field of seabed immersed tunnel installation, and particularly relates to a final joint water stop device and an installation method. The final joint water stop device comprises a telescopic water stop belt, wherein the telescopic water stop belt is provided with a telescopic part, a first fixing part and a second fixing part, the first fixing part and the second fixing part are located at the two ends of the telescopic part correspondingly, the first fixing part is fixedly connected to the outer end face of an expanding section, and the second fixing part is fixedly connected to the peripheral face of a jacking section; before the jacking section is pushed out, the first fixing part is adjacent to the second fixing part, and the telescopic part is in a natural bending state between the first fixing part and the second fixing part; when the jacking section is pushed out, the jacking section drives the telescopic part to extend outwards; after the jacking section is pushed out in place, the telescopic part stretches out and flatly covers the peripheral face of the jacking section, and the stretchable length of the telescopic part is at least equal to the pushing-out distance of the jacking section. According to the final joint water stop device, sealing and water stopping between the jacking section and the expanding section during installation of a final joint are achieved, and the blank in the aspect of sealing and water stopping in construction of the final joint through a push-out type jacking section method is filled up.

The invention belongs to the technical field of foundation pit supporting and relates to a high and watery coastal area underground continuous wall connector water stop device. Continuous wall horizontal ribs are mechanically connected with continuous wall vertical main beams. Steel flower pipes are bond to a first wall reinforcement cage in a lap joint manner. Galvanized sheet iron is installed on the outer side of an I-shaped steel plate. The galvanized sheet iron is welded to pressing bar steel bars in a spot welding manner. The I-shaped steel is connected with the first wall reinforcementcage in a welded manner. A U-shaped stirrup is connected with the single faces of the continuous wall horizontal ribs in a welded manner. Grouting pipes are bond to a second wall reinforcement cage ina lap joint manner. The second wall reinforcement cage is embedded and fixed in an I-shaped steel plate wing plate in a lifting manner. Sand bags are stacked on the outer side of an I-shaped steel plate connector web, and the lower filling height of the sand bags is the height of an underground continuous wall. The high and watery coastal area underground continuous wall connector water stop device is ideal in waterproof effect, concrete can be effectively prevented from streaming around, and due to the arrangement of the steel flower pipes, the water stop effect at the seam position is ensured.

The invention relates to an embedded short strut structure and a construction method of the embedded short strut structure. According to the embedded short strut structure, a position for a short strut is reserved about one third the span away from the area where a steel pipe column is located, other foundation slabs meet the design requirement, a fixing steel angle is arranged at the lower end of the short strut, grouting surface shear-resistant steel bars are arranged between the short strut and a bearing platform, embedded bolts are arranged around the short strut, steel bars are reserved at the broken position of a ground beam or a plate, a water stop steel plate is also arranged, a sleeve is arranged on one side of each reserved steel bar in a straight-thread connection mode, and the other sides of the reserved steel bars are welded. The reserving and embedding operation of the short strut meets the requirement for parallel cross operation of all processes, as a result, the construction period is the shortest, and cost is also lowered.

The invention provides a method and a device for replacing a pipe section or a valve on a water supply pipeline without water stopping. The method comprises the following steps that pipeline flange plates and a pipeline cutting beveling machine are installed on the two sides of the to-be-placed pipeline or the valve, a pipeline seal bin is installed, thus the to-be-placed pipeline or the valve is located in a lower seal bin body of the pipeline seal bin, the to-be-placed pipeline is cut and beveled, and the replaced pipeline and the pipeline cutting beveling machine are taken out; and a connecting pipe fitting is placed into an upper seal bin body, the two ends of the connecting pipe fitting are connected with the pipeline flange plates on the two sides of the pipeline correspondingly, continuous action of the connecting pipe fitting and the pipeline flange plates is kept, the pipeline seal bin is detached, and the two ends of the connecting pipe fitting are fixed to the pipeline flange plates on the two sides correspondingly. With the adoption of the technical scheme, the partial pipe section or the valve is replaced without water stopping, and through the method, no opening is formed in the original water supply pipeline and no damage is caused to other structures while uninterrupted water supply is ensured.

The invention discloses a construction method of a stiffening core curtain pile and wall protection pile anchor combined supporting structure. The supporting structure comprises concrete cast-in-placepiles and a water stop curtain, wherein the water stop curtain is a high-pressure rotary jet pile water stop curtain; a shape steel stiffening core is driven into the water stop curtain along the axis to form a stiffening core water stop curtain; the stiffening core water stop curtain and the concrete cast-in-place piles are arranged at intervals and meshed to be arranged in a straight line, theconcrete cast-in-place piles and the stiffening core water stop curtain are connected into a whole through top beams, and the waist of each concrete cast-in-place pile is connected with a waist beam;and prestressed anchor rods are installed on the waist beams between every two adjacent concrete cast-in-place piles. The method accords with the stress characteristic of the supporting structure, thestrength of the stiffening core water stop curtain is fully utilized on the premise of meeting the water stop requirement, the rigidity and strength of the combined pile supporting structure are improved, deformation of the side wall of a foundation pit can be better controlled, materials are saved under the same deep foundation pit condition, the shape steel stiffness core can be recycled, the cost is reduced, and underground space pollution caused by the shape steel stiffness core left underground is avoided.

The invention relates to the field of building waterproofing and discloses a water stop belt and a pipe gallery deformation joint waterproof structure. The water stop belt comprises a waterproof layerand a lining layer in the thickness direction and an extending-and-retracting portion and connection portions in the width direction, wherein the waterproof layer is arranged on one or more faces ofthe lining layer in a covering manner; and the extending-and-retracting portion is located in the middle, and the connection portions are located at the two sides. The extending-and-retracting portionis folded, so that an extendable-and-retractable structure is formed. The strength and rigidity of the material of the lining layer are greater than those of the waterproof layer. The waterproof layer and the lining layer are compounded in the water stop belt; the stress generated by the vast majority of self weight on the extending-and-retracting portion of the water stop belt is borne by the lining layer, and thus the fatigue and aging problems of the waterproof layer are avoided to a great extent; the service life of the water stop belt can be prolonged; by means of physical deformation ofthe extending-and-retracting portion of the water stop belt, deformation, caused by differential settlement, of a pipe gallery can be resisted against; after deformation is generated, the strength, sealing performance and material performance are not affected; the waterproof effect can be achieved better; and the water stop belt is particularly applicable to deformation joint waterproofing of thecomprehensive pipe gallery.

A structural form of the final joint of an immersed tube tunnel, which relates to the technical field of transportation; the foundation cushion is provided with adjacent long pipe joints on both sides, and a jack pushing system is provided on the adjacent long pipe joints on both sides, and the two sides One end face of the adjacent long pipe section is wedge-shaped, and the other end face is a vertical end face, and the end faces on both sides are equipped with rigid end shells, and a single-sided wedge-shaped block; the two sides of the adjacent long pipe joints on both sides are equipped with a first rigid end shell, the outer circumference of the first rigid end shell is equipped with a GINA waterstop, and the adjacent long pipe joints on both sides are provided with end Sealing wall; the two sides of the single-sided wedge-shaped block are installed with second rigid end shells. The structure size of the final joint of the immersed tube in the present invention is small, the prefabrication is convenient, and the construction quality is easy to ensure; the single-sided wedge shape is less difficult to construct, easy to compress the waterstop, and the final joint block is not easy to be squeezed out by water pressure; the prefabricated components are docked underwater, and the construction speed is fast. quick.

The invention relates to a construction method for a temporary sealing wall of a comprehensive pipe gallery, which is characterized in that the construction method includes the following steps: A. A water stop is pre-embedded at the end of the wall plate of the comprehensive pipe gallery, and one end of the water stop extends to The outside of the wall plate of the comprehensive pipe gallery is exposed, and a protective steel plate is set on the outside of the waterstop to protect the exposed waterstop; B. A sealing wall is set at a certain distance from the end of the pipe gallery. In the case of phased construction of the comprehensive pipe gallery, the present invention can block the end of the pipe gallery constructed in advance, and reserve the interface for the long-term construction of the pipe gallery, and remove the sealing wall for extended construction without destroying the overall structure , and ensure the waterproof performance of the previous pipe gallery and the new pipe gallery at the deformation joints.

The invention discloses a bridge durability dustproof sliding plate stretching device which comprises a stretching joint component and a stretching plate, wherein one end of the stretching plate is fixed on one side of the stretching joint component through an anchoring bolt, and the other end of the stretching plate is tightly attached to the other side of the stretching joint component and covers the stretching joint of the stretching joint component. The invention also discloses a bridge durability dustproof sliding plate stretching device and a construction method thereof. The bridge durability dustproof sliding plate stretching device has the advantages that when the beam body stretches and deforms, a comb-tooth-shaped steel plate slides along with the beam body, and the stretching plate slides along with the beam body, so that the self-stretching of the stretching plate is realized; the stretching joint is covered by the stretching plate, so that the dust-proof effect is achieved, a water stop belt can be prevented from aging in the expose to the sun, the service life of the stretching joint component is prolonged, and the top of the stretching plate is flush with the top ofconcrete pouring, so that the bridge deck is flat, and the traveling comfort is good; one end of the stretching plate is designed into a wedge-shaped structure, and sand particles cannot be accumulated at the stretching joint, so that the stretching joint can work normally for a long time.

The invention relates to a pipe segment waterproof structure for pipe seam expansion. The pipe segment waterproof structure for the pipe seam expansion comprises a pipe segment, a first waterproof sealing pad, a second waterproof sealing pad, a first water expansion water stop strip, a second water expansion water stop strip, a joint material, surface grouting holes, first pipe seam grouting holes, second pipe seam grouting holes, grouting openings, main grouting pipes, branch grouting pipes, weak current circuit wires, an indicator lamp a, an indicator lamp b and an external battery. The first water expansion water stop strip, the first waterproof sealing pad, the second water expansion water stop strip, the second waterproof sealing pad and the joint material are arranged in a peripheralabutted seam of the pipe segment in sequence from outside to inside. The pipe segment waterproof structure for the pipe seam expansion has the beneficial effects that a pipe segment grouting system is independent, and the pipe seam is repaired in a partitioned and targeted mode; multiple waterproof measures are set, and the emergency waterproof quality is ensured; the special pipe segment is prefabricated in a factory, and the quality of the pipe segment is guaranteed; a waterproof warning system is set, and the water leakage situation is grasped immediately; and multiple grouting hole channels are reserved, and quick sealing of water leakage is achieved.

The invention provides a middle buried type water stop belt installation die and belongs to the technical field of building construction. The middle buried type water stop belt installation die comprises a water stop belt, die plates, connecting steel bars and steel bar nets, the water stop belt is provided with a center circular ring part with the section in a circular ring shape, the multiple die plates are spliced to form a clamping space, the connecting steel bars are connected with the steel bar nets and the die plates, all the die plates are connected to the outer side faces of the steelbar nets, and therefore a pouring space is formed. An installation method of the installation die is used, positioning on the water stop belt is achieved through the die plates and clamping plates, and it is ensured that the position of the water stop belt cannot be deflected in the process of pouring concrete and tamping the concrete. By means of the installation method of the middle buried typewater stop belt, the defects existing in the prior art are overcome, and the work efficiency of the installation die is also improved.

The invention provides a test method and device for testing the sealing property of a pipe-jacking construction device. The two ends of a receiving bin are provided with sealing rings and connected with a pressure stabilizing bin to form a pipe-jacking receiving device. A casing pipe is installed at the rear end of the pipe-jacking receiving device. A starting opening water stopping sealing device is installed at the rear end of the casing pipe, and pipe joint sets are jacked forward in sequence to enable the front ends to enter the receiving bin and the rear ends to be located outside the casing pipe, so that a sealing cavity is formed between the casing pipe and the pipe joint sets, and a sealing cavity is formed between the pipe-jacking receiving device and the pipe joint sets; the two sealing cavities are filled with mud to simulate a mud sleeve; the pipe joint sets are jacked and pressed, then the two sealing cavities are inflated and pressurized till air pressure is equal to stratum water pressure verified through testing, and whether mud overflows from the outside of the starting opening water stopping sealing device, joint positions in the pipe joint sets and the outside of the pipe-jacking receiving device is observed. According to the method, before construction is carried out, the sealing property of a pipe-jacking construction device can be tested in advance, and the test device is low in cost, convenient to operate and capable of testing the sealing property of the pipe-jacking construction device under the high water pressure condition.

The invention relates to the technical field of underground construction waterproof protection, in particular to a basement top plate deformation joint waterproof system and technology. The basement top plate deformation joint waterproof system comprises a buried type water stop belt used for preventing external water from entering a deformation joint, a deformation joint backer plate with which the deformation joint is filled, an externally-bonded type metal plate pressure-bearing water stop belt used for sealing the deformation joint, and a waterproof structure used for preventing water for the externally-bonded type metal plate pressure-bearing water stop belt. According to the basement top plate deformation joint waterproof system, by arranging the externally-bonded type metal plate pressure-bearing water stop belt, environment water isolation treatment is carried out on a waterproof weak joint of the building underground construction top plate deformation joint, the waterproof structure is laid on the deformation joint, has the certain performance guarantee and can bear a certain environment pressure, and the effect of joint enhancement is achieved.

The invention discloses a female style sport vest with a water drinking device. The female style sport vest comprises a sport vest, wherein the outer side, at the forechest, of the sport vest is provided with a drinking water bag accommodation device; the upper part of the drinking water bag accommodation device is provided with a zipper; a suction tube hole is formed in one end of the zipper, and is used for the through penetration of a suction tube on a drinking water bag; the suction tube is provided with a water stop clamp at the suction tube hole; the water stop clamp is fixedly arranged on the sport vest. The female style sport vest has the advantages that as a water drinking device of which the drinking water bag can be replaced is arranged on the outer side of the sport vest, and the suction tube with the water stop clamp is also provided, an athlete can drink water conveniently and fast at any time and in any place after sport; arranged on the inner side of the water drinking device, an expansion device can effectively fix the drinking water bag, and can still play a role in fixing after a part of water is drunk; therefore the drinking water bag is effectively prevented from waggling in the device to cause inconvenience in sport.

The invention relates to a building engineering construction method, in particular to a high-rise building basement roof settlement post-pouring joint advanced water stop construction method. The construction method includes the steps that the two sides of a post-pouring joint are chiseled and cleaned; a formwork and a supporting system are erected on the lower portion of the post-pouring joint; waterproof coiled materials are laid at positions, on the two sides of the post-pouring joint, of a basement roof; walls are built on the waterproof coiled materials respectively; the upper portions of the walls are covered with reinforced concrete cover plates; an underground body structure waterproof layer is constructed; backfill construction is carried out; post-pouring joint concrete is poured. The construction method has the advantages that a basement roof waterproof layer, a protective layer and outdoor backfill can be integrally constructed and are prevented from being interfered by basement roof post-pouring joint construction, and the construction quality of an underground waterproof structure is guaranteed. Impurities, rainwater and water for construction are effectively prevented from flowing into a basement through the post-pouring joint.

The invention discloses a synchronous tunnel grouting and drainage construction method for controlling ground heaving. The method comprises the following steps that rotary spraying piles are arrangedfrom the ground surface to the two sides of a tunnel to form water stop curtains; after tunnel support is finished, drilling and grouting are carried out above the tunnel face to form an advanced reverse curved arch connecting the water stop curtains on the two sides; after the advanced reverse curved arch is formed, a drainage channel is drilled at the bottom of the advanced reverse curved arch along the tunneling direction, and accumulated water is drained through the drainage channel; and full-section grouting operation is carried out on the tunnel while opening of the drainage channel is guaranteed. The advanced reverse curved arch is in the shape of an arc which is opened towards the ground, water accumulation is easy, and the drainage effect is good after a hole is drilled at the bottom; the originally closed grouting system can be opened by reserving the drainage channel at the bottom of the reverse curved arch, so that drainage work can be synchronously carried out during tunnel advanced pouring construction, excess accumulated water in the stratum is further squeezed and drained by utilizing the lifting effect of grouting, excess pore water pressure caused by grouting construction can be remarkably reduced, and the purpose of preventing excessive ground heaving is achieved.

The invention discloses a water stop section for the crossing floor layer installation of a building drainage pipeline and an installation method of the water stop section. The water stop section includes a water stop section body, a flange gland, a sealing ring sleeve, a sealing rubber pad, a sealing rubber ring and a fastening bolt, the water stop section body and the flange gland are assembledin a fastened mode by the fastening bolt, the inner cavity of the water stop section body is connected with the sealing ring sleeve by the sealing rubber ring in a sealed mode, and the sealing ring sleeve and the flange gland are connected in a sealed mode through the sealing rubber pad inside of the sealing ring sleeve. The risk that water leakage is prone to occurring at openings in the two endsof an embedded connecting pipe or a center-adjustable embedded connecting pipe structure is avoided, a bolt connection fastening method of a T-shaped groove formed in the water stop section body witha cross groove of a flange pressure plate long bolt hole is adopted, when the position of the water stop section poured on a reinforced concrete floor is deviated, the installation position of the pipeline can be conveniently adjusted in any horizontal direction by displacing adjustment to ensure the verticality of the vertical pipe installation, the product structure is simplified, the manufacturing cost is reduced, and the efficiency of installation and construction are improved.

The invention provides a mounting method and a mounting device for an embedded water stop, and belongs to the technical field of building waterproof construction. The mounting method for the embeddedwater stop comprises the following steps of: acquiring mounting information, and arranging an adaptive mounting device; mounting the embedded water stop on the mounting device, and keeping the mounting device in a clamping state; mounting the embedded water stop to a deformation joint by using the mounting device; and fixing the mounting device to the deformation joint. The mounting device comprises a clamping piece and a bolt assembly, wherein the clamping piece can be used for being clamped on a hollow cavity of the embedded water stop and is fixed to a template on one side of the deformation joint through a split bolt; and the bolt assembly is arranged on the clamping piece and is used for keeping the clamping piece in a state of clamping the embedded water stop. By the mounting device,the mounting precision of the embedded water stop is guaranteed, and the embedded water stop can be attached and clamped well; and the embedded water stop is fixed to the template of the deformationjoint through the split bolt, and is fixed firmly. The mounting method and the mounting device are convenient to mount and fix, and can be detached and recycled, and the cost is saved.

A grommet includes: a water stop portion that has an annular shape and is inserted to a through hole formed in an attachment panel for stopping water; and a first partition wall portion and a second partition wall portion that are unit arranged to project toward a radially inner side of the water stop portion water stop portion. The water stop portion includes: a first contact portion that is capable of coming into contact with a first side surface of a circumference edge portion of the through hole; a second contact portion that is capable of coming into contact with the first side surface; a groove portion formed in an annular shape between the first contact portion and the second contact portion; and a recess/protrusion portion that is formed on a circumferential wall inside the groove portion.

A concrete culvert using a corrugated hollow closed water stop and a construction method thereof, according to one embodiment of the present invention, enables: a hollow corrugated part to be inserted, in a close state, into an expandable groove, which is a part of a joining groove, by using the corrugated hollow closed water stop having the hollow corrugated part formed on a culvert unit joining surface so as to not be partially filled with a grout material and thus to be adaptively expandable according to crack behavior of a concrete culvert; the hollow corrugated part to be easily inserted and set into concave parts of first and second concrete culvert units by itself without resistance through the use of a plate-shaped part of the corrugated hollow closed water stop; and the number of grout material injection paths and outputs to be reduced since the grout material can move along the first and second plate-shaped parts, and thus the present invention is economical and a complicated construction method can be simplified.

The invention relates to a construction joint waterproof construction method for combined design of a water stop steel plate and anti-crack steel bars of basement floors. The construction joint waterproof construction method is characterized by comprising the following steps of a, digging a foundation bottom plate pit to the designed elevation; b, pouring a concrete cushion layer at the bottom ofthe pit; c, laying a pre-laid anti-sticking waterproof coiled material; d, binding an anti-crack steel bar net; e, pouring waterproof concrete in an inclined pit; f, binding the reinforcing steel barson the left side of a construction joint; g, mounting a steel plate waterstop at the position of a concrete bottom plate; h, mounting a formwork at the construction joint; i, pouring waterproof concrete on the left side of the construction joint; j, pouring a concrete cushion layer of the bottom plate on the right side of the construction joint; and k, pouring waterproof concrete on the bottom plate of the right side of the construction part. The construction joint waterproof construction method for combined design of the water stop steel plate and the anti-crack steel bars has the advantagesthat the water stop steel plate and the anti-crack steel bars are combined to form a water stop area, so that the concrete has the anti-crack water stop function, the waterproof effect is good, an additional external anti-crack waterproof layer is arranged at the construction joint of the bottom plate, and the flow path of water is increased.