CN111411609B - Concrete block for bank protection - Google Patents
Concrete block for bank protection Download PDFInfo
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- CN111411609B CN111411609B CN202010138845.2A CN202010138845A CN111411609B CN 111411609 B CN111411609 B CN 111411609B CN 202010138845 A CN202010138845 A CN 202010138845A CN 111411609 B CN111411609 B CN 111411609B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
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Abstract
The invention discloses a bank protection concrete block, which belongs to the field of hydraulic engineering and comprises a substrate, wherein the rear surface of the substrate is connected with a wave reduction slope, the wave reduction slope is composed of one or more arc-shaped structural sections, the slopes are gradually reduced from top to bottom, the front surface of the substrate is connected with an embedded pile, the depth of the whole embedded pile embedded into a sandstone layer or a soil layer of a bank is larger than the thickness of a block body of the substrate, the peripheral sides of the substrate are respectively connected with splicing sections, an upper seepage hole and a lower seepage hole are respectively arranged in the directions of the upper splicing section and the lower splicing section, the upper seepage hole is positioned right below or obliquely below the lower seepage hole after being lapped, and a gap is reserved between. The bank protection concrete block has a light high-strength structure, long service life and convenient maintenance, can perform a smooth flow guiding function, can form stronger omnibearing holding power, effectively reduces damage caused by wave energy concentration, settlement, expansion with heat and contraction with cold and the like, is convenient for workers to fall in the construction process, is convenient to produce, transport and fill, and is more beneficial to protecting the bank structure.
Description
Technical Field
The invention belongs to the field of hydraulic engineering, and particularly relates to a bank protection concrete block.
Background
The revetment is mainly used for defending the damage to the slope bank and the land area caused by the invasion of waves and water flows in the water area range and ensuring the safety of land area personnel and infrastructure. Most of the commonly used revetment structures are formed by connecting concrete blocks at present, and are designed according to hydrodynamic characteristics of coasts and river banks.
In order to reinforce the bank structure, prevent simultaneously that torrent from strikeing, surge, rainwater etc. from causing sand and soil invasion and loss, it is essential to have the bank protection structural design of more excellent performance. The existing revetment blocks omit an integral structure design for enhancing the vertical grabbing force of the revetment blocks and a mud-sand layer or a soil layer of the embankment and the mutual supporting effect between the revetment blocks, the phenomena of revetment block collapse and washout are easy to occur, the foundation settlement caused by water flow impact is often solved by laying of traditional geotextiles, the embankment cannot be subjected to foundation fixation, the construction process is complex and time-consuming, and the revetment block collapse and falling phenomenon caused by sand loss is easy to cause in the splicing gap. The invention provides a lightweight high-strength bank protection concrete block structure which has excellent functions and certain aesthetic property and is more beneficial to protecting the bank structure.
Disclosure of Invention
The invention aims to provide a revetment concrete block, which solves the problem that the revetment is impacted and damaged by water flow such as shock waves, overtopping waves and the like, reduces the surge height and plays a role in softening and guiding flow; by enhancing the structural strength of the concrete blocks, the vertical holding force on the bank and the transverse acting force formed by the mutual lap joint of the concrete blocks, the concrete blocks are not connected by ropes, steel cables or lock catches and the like; the all-dimensional support can be provided, wave energy concentration is reduced, weak points formed at the joints of adjacent concrete blocks are avoided, loosening or sliding of the bank protection concrete blocks are greatly reduced, the falling of the construction personnel is facilitated, and filling is convenient; the problem of structural damage caused by foundation settlement due to water flow impact is solved by replacing the laying of the traditional geotextile through the splicing design of the multiple layers of seepage holes, the laying and butt joint are quick and convenient, and no obvious gap exists; meanwhile, the damage caused by expansion with heat and contraction with cold after the concrete blocks are spliced is reduced. The bank protection concrete block has a light high-strength structure, long service life, convenient maintenance and strong holding power, can effectively reduce settlement and is more favorable for protecting the bank structure.
The technical scheme adopted by the invention for realizing the purpose is as follows: the bank protection concrete block comprises a base plate, wherein the rear surface of the base plate is connected with a wave reduction slope which is an arc-shaped structural section, at least one slope is gradually reduced from top to bottom, the slope faces the wave reduction slope, the slope is in the upward direction with the large slope, and the clockwise direction is respectively the upper direction, the right direction, the lower direction and the left direction; the front surface of the substrate is connected with a buried pile, and the depth of the whole buried pile in a sandstone layer or a soil layer of the embankment is greater than the thickness of the block body of the substrate; the upper side, the lower side, the left side and the right side of the substrate are respectively connected with an upper splicing section, a lower splicing section, a left splicing section and a right splicing section; the upper splicing section is provided with an upper water seepage hole, and the lower splicing section is provided with a lower water seepage hole. When water flow rushes to the embankment, the design of the wave reducing slope can be designed according to hydrodynamic characteristics to achieve the effect of straightening water flow in advance, the impact force of water flow such as shock waves and wave-crossing is reduced, the surge height is reduced, the arc-shaped surface with the gradient decreasing from top to bottom is adopted, the contact surface of water is favorably increased, a certain flow guiding effect is achieved, the water flow falls back conveniently, the strength of the revetment concrete block is enhanced, the design is attractive, and personal and property safety is protected while foot falling points are provided for constructors. The pile burying of the bank protection concrete block is integrally buried in a sand stone layer or a soil layer of the bank, the burying depth can be calculated and determined according to different geology, the structural strength of the concrete block and the vertical holding power of the bank are enhanced, the looseness or sliding of the bank protection concrete block is greatly reduced, and the filling is convenient. Go up the concatenation section, splice the section down, left side concatenation section and right concatenation section are used for mutual overlap joint between each shore protection concrete piece, compare in ordinary cover tile-pressing formula overlap joint or hasp formula overlap joint, this structure overlap joint can provide the transverse force and support each other, need not to wear the rope again, steel cable or hasp etc. prevent concrete piece sheds device, and do not have obvious gap between each overlap joint portion base plate rear surface, water invasion and attack and debris entering have been stopped, reduce and lay geotechnological cloth and prevent soil erosion and water loss, it is convenient fast to lay the butt joint. And meanwhile, the pile foundation provides all-dimensional support under the comprehensive action of the embedded pile, has a light high-strength structure, reduces weight and is more favorable for protecting the embankment structure. The upper seepage hole and the lower seepage hole are formed by a plurality of through holes, the upper seepage hole between every two concrete blocks after being lapped is directly or obliquely above the lower seepage hole to form a complete embankment system drainage channel, and the hole position staggering helps to avoid direct impact of water flow on a silt layer of an embankment and reduce structural damage caused by expansion with heat and contraction with cold. The concrete block is a light high-strength structure, has long service life and convenient maintenance, can provide all-dimensional support after being mutually lapped, has strong holding power, is not easy to slip and can effectively reduce settlement.
Preferably, the substrate is a straight quadrangular prism or other straight polygonal prisms. Through the design of reducing the unrestrained slope and burying the stake, greatly increased concrete block's intensity helps alleviateing concrete block's weight, and processing, transportation, laying butt joint are convenient.
Preferably, the cross-sectional shape of the upper splicing section comprises a first straight line section, one side of the first straight line section in the length direction is connected with a second vertical straight line section, the second straight line section is far away from one side of the first straight line section and connected with a boss, the boss is an arc line or fold line boss, one side, far away from the second straight line section, of the boss is provided with a first abutting edge parallel to the second straight line section, the first abutting edge is connected with an arc-shaped or fold line-shaped groove on one side close to the first straight line section, one side, far away from the second straight line section, of the groove. Straightway one and straightway two becomes the right angle, the installation of being convenient for, the preferred arc of boss and recess helps reducing the concrete piece phenomenon of breaking that stress concentration caused, leans on the limit one and leans on the limit two-purpose in the location support effect, this structure easy shaping, and the splice section superposes each other when the overlap joint and supports, reinforcing overall structure intensity.
Preferably, when the revetment concrete blocks are lapped, the straight line segment II of the upper splicing section is matched with the edge-adjacent II of the lower splicing section, the straight line segment II of the left splicing section is matched with the edge-adjacent II of the right splicing section, the boss is matched with the groove, and the rear surfaces of the substrates of the revetment concrete blocks are coplanar. When two liang of overlap joints of shore protection concrete block, boss and recess support of mutually supporting, and the butt edge one and the butt edge two are used for the location to support, and the splice section is overlapped each other during the overlap joint and is supported, reinforcing overall structure intensity, two liang of coplanarities of overlap joint rear substrate rear surface. The structure is easy to form and convenient to position and install quickly, and time is not spent additionally to find the parallel base planes.
Preferably, the upper splicing section and the lower splicing section have the same structure, the left splicing section and the right splicing section have the same structure, the cross sections of all the splicing sections have the same shape, the plane of the first straight line segment of the upper splicing section is coplanar with the rear surface of the substrate, the plane of the first straight line segment of the lower splicing section is coplanar with the front surface of the substrate, and the planes of the first straight line segment of the left splicing section and the second straight line segment of the right splicing section are respectively coplanar with the plane of the first straight line segment of the upper splicing section and the plane of the first straight line segment of the lower splicing section in pairs. All splice sections cross sectional shape is the same, and two liang of relative splice sections structures are the same, helps simplifying the structure, and processing is convenient, makes splice section thickness and the emergence of the weak department of base plate thickness the same ability reduction concrete piece to a great extent behind the overlap joint with base plate front surface or base plate rear surface coplane, and the splice section is located the below of splice section under in the overlap joint time simultaneously and helps rivers direct landing under the action of gravity.
Preferably, when the plane of the straight line segment I of the upper splicing section is coplanar with the plane of the straight line segment I of the right splicing section, the upper right corner of the rear surface of the substrate and the lower left corner of the front surface of the substrate are respectively connected with a square block I and a square block II; when the plane of the straight line segment I of the upper splicing section is coplanar with the plane of the straight line segment I of the left splicing section, the upper left corner of the rear surface of the substrate and the lower right corner of the front surface of the substrate are respectively connected with a square block I and a square block II, and the square block I and the square block II have the same structure and are regular quadrangular bodies. The design of the square blocks I and II of the regular quadrangular prism is used for isolating a mud and sand layer of the embankment and closing gaps between adjacent concrete blocks, and the damage to a foundation structure caused by water flow invasion is reduced. When ecological protection is needed, the square block I and the square block II are not added, a plant living space is provided at the vacant position, and the space is natural and more attractive and harmonious.
Preferably, a transverse gap exists after the upper splicing section and the lower splicing section are lapped, a longitudinal gap exists after the left splicing section and the right splicing section are lapped, and the upper seepage hole, the lower seepage hole, the transverse gap and the longitudinal gap form a seepage water discharge channel of the bank system. The horizontal gap, the longitudinal gap, the upper seepage hole and the lower seepage hole form a complete embankment system drainage channel together, after the upper seepage hole and the lower seepage hole are connected in an overlapping mode, the upper seepage hole is in contact with a embankment silt layer, seepage water of the silt layer seeps into the horizontal gap or the longitudinal gap from the upper seepage hole, and then seeps out for drainage from the lower seepage hole under the action of gravity, so that an embankment seepage line is reduced, collapse expansion is prevented, structural damage caused by thermal expansion and cold contraction is reduced, and the service life is prolonged.
Preferably, the upper water seepage hole and the lower water seepage hole are both formed by a plurality of through holes, and the upper water seepage hole is arranged right above or obliquely above the lower water seepage hole after being lapped. Go up the infiltration hole and constitute by a plurality of through-holes with infiltration hole down, the last infiltration hole between every two concrete pieces after the overlap joint helps silt layer infiltration water to discharge under the action of gravity fast directly over or to the top to one side, and the hole site staggers and helps avoiding rivers to the direct impact on the silt layer of embankment, reduces to erode soil loss, the structural damage who causes, increases life.
Preferably, the embedded pile comprises a rib which is in a long strip shape or a frustum shape, a transition angle is arranged at the joint of the rib and the front surface of the base plate, the transition angle is a round angle or a chamfer angle, one end of the rib, far away from the front surface of the base plate, is connected with a convex step vertical to the rib, the section of the convex step is triangular, quadrangular, conical, circular, arrow-shaped or kidney-shaped, and the embedded pile is integrally in a shape like a Chinese character 'yi', a 'cross' or a'm'. The pile burying of the bank protection concrete block is integrally buried in a sand stone layer or a soil layer of the bank, so that the vertical holding force of the concrete block on the bank is enhanced, the looseness or the sliding of the bank protection concrete block is greatly reduced, the bank protection concrete block is enabled to have a high-strength light structure, and meanwhile, the bank protection concrete block is more favorable for protecting the bank structure and protecting the safety of residents.
Preferably, the lapping mode between the upper splicing section and the lower splicing section or between the left splicing section and the right splicing section can adopt alignment or dislocation lapping. The preferred dislocation overlap joint of overlap joint mode makes wave reduction slope and each concatenation section distribute each other in a staggered way, and overall structure atress is more even, reduces the emergence of the structural failure condition.
Compared with the prior art, the invention has the beneficial effects that: the main body design of the traditional base plate, the wave reducing slope and the embedded pile is adopted, the periphery of the base plate is respectively connected with splicing sections, an upper water seepage hole and a lower water seepage hole are respectively arranged in the positions of the upper splicing section and the lower splicing section, after the splicing, the upper water seepage hole and the lower water seepage hole are staggered, and gaps are reserved between the corresponding splicing sections. The problem of impact damage of water flow such as shock waves, overtopping waves and the like to the revetment is solved, the surge height is reduced, and the effect of softening and guiding flow is achieved; the structural strength and the vertical holding force of the concrete blocks on the bank are combined with the transverse acting force formed by mutual overlapping of the concrete blocks, so that the all-round support is provided, the wave energy concentration is reduced, the weak points formed at the joints of the concrete blocks and the adjacent concrete blocks are avoided, the bank can be consolidated, and the looseness or the sliding off of the bank protection concrete blocks are greatly reduced; the problem of structural damage caused by foundation settlement due to water flow impact is solved by replacing the laying of the traditional geotextile through the splicing design of the multiple layers of seepage holes, so that the construction personnel can conveniently drop feet, the laying and filling are quick and convenient, and no obvious gap exists; meanwhile, the damage caused by expansion with heat and contraction with cold after the concrete blocks are spliced is reduced. The bank protection concrete block has a light high-strength structure, long service life, convenient maintenance and strong holding power, can effectively reduce settlement and is more favorable for protecting the bank structure.
Drawings
FIG. 1 is a front view of a revetment concrete block of the present invention;
FIG. 2 is a left side view of the revetment concrete block of the present invention;
FIG. 3 is a top view of the revetment concrete block of the present invention;
FIG. 4 is a cross-sectional view of the segments of the revetment concrete block of the present invention;
FIG. 5 is a longitudinal cross-sectional view of the revetment concrete block of the present invention;
FIG. 6 is a transverse cross-sectional view of the revetment concrete block of the present invention in lap joint;
FIG. 7 is a construction assembly view of the revetment concrete block of the present invention;
FIG. 8 is a schematic structural diagram of a cross-shaped buried pile quadrangular revetment concrete block of the present invention;
FIG. 9 is a schematic view of the structural optimization of the cross-shaped pile-burying quadrangular revetment concrete block of the present invention;
FIG. 10 is a schematic structural view of a cross-shaped buried pile octagonal prism bank protection concrete block of the invention;
fig. 11 is a schematic structural optimization diagram of the cross-shaped buried pile octagonal body revetment concrete block.
Description of reference numerals: a substrate 1; reducing the wave slope 2; upper seepage holes 3; a lower seepage hole 4; a first square block 5; a square block II 6; burying piles 7; a transverse gap 8; a longitudinal void 9; a substrate front surface 11; a substrate back surface 12; an upper splice section 13; a lower splice section 14; a left splice section 15; a right splice section 16; the ribs 71; a convex step 72; a transition angle 73; a first straight segment 131; a second straight segment 132; a boss 133; a first side edge 134; a groove 135; and a second side edge 136.
Detailed Description
The invention is described in further detail below with reference to examples and figures:
example 1:
as shown in fig. 1-7, the revetment concrete block comprises a substrate 1, wherein a substrate back surface 12 of the substrate 1 is connected with a wave reducing slope 2, the wave reducing slope 2 is an arc-shaped structural section with two slopes, the slopes decrease progressively from top to bottom, the wave reducing slope 2 faces the wave reducing slope, the position with the large slope is taken as the upward direction, and the clockwise direction is respectively the upward direction, the right direction, the downward direction and the left direction; the front surface 11 of the substrate 1 is connected with a buried pile 7, and the whole buried pile 7 is buried in a gravel layer or a soil layer of a bank; the upper side, the lower side, the left side and the right side of the substrate 1 are respectively connected with an upper splicing section 13, a lower splicing section 14, a left splicing section 15 and a right splicing section 16; the upper splicing section 13 is provided with an upper water seepage hole 3, and the lower splicing section 14 is provided with a lower water seepage hole 4. When water flow rushes to the bank, the wave reducing slope 2 can straighten the water flow in advance, reduce impact force of water flow such as impact waves and overtopping and reduce surge height, is favorable for increasing the contact surface of water and playing a role in guiding flow, is convenient for the water flow to fall back, is favorable for enhancing the strength of the concrete block of the bank protection, has attractive design, and protects personal and property safety while providing foothold for constructors. The pile burying 7 of the bank protection concrete block is integrally buried in a sand stone layer or a soil layer of the bank, so that the structural strength of the concrete block and the vertical holding power to the bank are enhanced, the looseness or the sliding off of the bank protection concrete block are greatly reduced, and the filling is convenient. Go up splice section 13, splice section 14 down, left splice section 15 and right splice section 16 are used for mutual overlap joint between each shore protection concrete block, compare in ordinary cover tile formula overlap joint or hasp formula overlap joint, this structural overlap joint can provide the transverse force and support each other, need not to wear the rope again, steel cable or hasp etc. prevent concrete block sheds device, and do not have obvious gap between each overlap joint portion base plate rear surface 12, it invades and gets into to have stopped rivers invasion and attack and debris, reduce and lay geotechnological cloth and prevent soil erosion, it is convenient fast to lay the butt joint. Meanwhile, the pile foundation can provide all-dimensional support under the comprehensive action of the embedded pile 7, has a light high-strength structure, reduces weight and is more favorable for protecting the embankment structure. Go up infiltration hole 3 and infiltration hole 4 down and constitute by a plurality of through-holes, the last infiltration hole 3 between every two concrete pieces of overlap joint back constitutes a complete embankment system drainage channel under directly over infiltration hole 4 or oblique top jointly, and the hole site staggers helps avoiding rivers to the direct impact on the silt layer of embankment, reduces the structural damage that expend with heat and contract with cold and cause. The concrete block is a light high-strength structure, has long service life and convenient maintenance, can provide all-dimensional support after being mutually lapped, has strong holding power, is not easy to slip and can effectively reduce settlement.
The substrate 1 has a regular quadrangular prism structure. Through the design of reducing unrestrained slope 2 and burying stake 7, greatly increased concrete block's intensity helps alleviateing concrete block's weight, and processing, transportation, laying butt joint are convenient.
The cross-sectional shape of the upper splicing section 13 comprises a first straight-line segment 131, one side of the first straight-line segment 131 in the length direction is connected with a second vertical straight-line segment 132, one side of the second straight-line segment 132, which is far away from the first straight-line segment 131, is connected with a boss 133, the boss 133 is an arc or broken-line segment boss, one side of the boss 133, which is far away from the second straight-line segment 132, is provided with a first abutting edge 134 which is parallel to the second straight-line segment 132, one side of the first abutting edge 134, which is close to the first straight-line segment 131, is connected with an arc or broken-line-shaped groove. Straightway one 131 and straightway two 132 are right angles, and are convenient for install, and boss 133 and recess 135 are the preferred arc, help reducing the concrete piece phenomenon of splitting that stress concentration caused, lean on limit one 134 and lean on limit two 136 to be used for the location support effect, and this structure is easily shaping, and the concatenation section is overlapped each other and is supported when the overlap joint, reinforcing overall structure intensity.
When the revetment concrete blocks are lapped, the second straight-line segment 132 of the upper splicing section 13 is matched with the second near edge 136 of the lower splicing section 14, the second straight-line segment 132 of the left splicing section 15 is matched with the second near edge 136 of the right splicing section 16, the boss 133 is matched with the groove 135, and the rear surfaces 12 of the substrates of the revetment concrete blocks are coplanar. When two liang of overlap joints of shore protection concrete block, boss 133 and recess 135 support with mutually supporting, and the first 134 and the second 136 that lean on the limit are used for the location to support, and the concatenation section stacks each other during the overlap joint and supports, reinforcing overall structure intensity, two liang coplanarities of overlap joint back plate rear surface 12. The structure is easy to form and convenient to position and install quickly, and time is not spent additionally to find the parallel base planes.
The upper splicing section 13, the lower splicing section 14, the left splicing section 15 and the right splicing section 16 are identical in structure, the plane of the first straight line segment 131 of the upper splicing section 13 is coplanar with the rear surface 12 of the substrate, the plane of the first straight line segment 131 of the lower splicing section 14 is coplanar with the front surface 11 of the substrate, and the plane of the first straight line segment 131 of the left splicing section 15 and the plane of the first straight line segment 131 of the right splicing section 16 are respectively coplanar with the plane of the first straight line segment 131 of the upper splicing section 13 and the plane of the first straight line segment 131 of the lower splicing section 14 in pairs. The splicing sections of the regular quadrangular body base body 1 are identical in structure, the structure is simplified, the processing is convenient, and the splicing sections are coplanar with the front surface 11 of the base plate or the rear surface 12 of the base plate, so that the thickness of the splicing sections after the lap joint is identical to that of the base plate 1, and the weak positions of concrete blocks can be reduced to a large extent.
When the straight line segment I131 of the upper splicing section 13 and the straight line segment I131 of the right splicing section 16 are positioned on the same plane, the upper right corner of the rear surface 12 of the substrate and the lower left corner of the front surface 11 of the substrate are respectively connected with a square block I5 and a square block II 6; when the plane of the straight line segment one 131 of the upper splicing section 13 is coplanar with the plane of the straight line segment one 131 of the left splicing section 15, the upper left corner of the rear surface 12 of the substrate and the lower right corner of the front surface 11 of the substrate are respectively connected with a square block one 5 and a square block two 6, and the square block one 5 and the square block two 6 have the same structure and are regular quadrangular bodies. The design of the square blocks I5 and II 6 of the regular quadrangular prism is used for isolating a mud and sand layer of the bank and closing gaps between adjacent concrete blocks, and the damage to a foundation structure caused by water flow invasion is reduced.
A transverse gap 8 is formed after the upper splicing section 13 and the lower splicing section 14 are lapped, a longitudinal gap 9 is formed after the left splicing section 15 and the right splicing section 16 are lapped, and the upper seepage hole 3, the lower seepage hole 4, the transverse gap 8 and the longitudinal gap 9 form a seepage water discharge channel of the bank system together. The horizontal gap 8, the longitudinal gap 9, the upper seepage hole 3 and the lower seepage hole 4 jointly form a complete drainage channel of the embankment system, after the upper seepage hole 3 and the lower seepage hole 4 are in lap joint, the upper seepage hole 3 is in contact with a silt layer of the embankment, seepage water of the silt layer seeps into the horizontal gap 8 or the longitudinal gap 9 from the upper seepage hole 3, and then seeps out for drainage from the lower seepage hole 4 under the action of gravity, so that an embankment seepage line is reduced, collapse and expansion are prevented, structural damage caused by thermal expansion and cold contraction is reduced by the gap, and the service life is prolonged.
The upper water seepage hole 3 and the lower water seepage hole 4 are formed by five through holes, and the upper water seepage hole 3 is arranged right above or obliquely above the lower water seepage hole 4 after being lapped. Go up infiltration hole 3 and infiltration hole 4 down and constitute by five through-holes, the last infiltration hole 3 between every two concrete pieces of overlap joint back helps silt layer infiltration water to discharge under the action of gravity fast directly over or the oblique top in infiltration hole 4 down, and the hole site staggers and helps avoiding rivers to the direct impact on the silt layer of embankment, reduces to erode soil loss, the structural damage who causes, increases life.
The embedded pile 7 comprises a rib 71, the rib 71 is long-strip-shaped and is perpendicular to the steep end of the wave reducing slope 2, a fillet transition angle 73 is arranged at the joint of the rib 71 and the front surface 11 of the base plate, one end, far away from the front surface 11 of the base plate, of the rib 71 is connected with a convex step 72 perpendicular to the rib 71, the cross section of the convex step 72 is in a middle waist shape, and the embedded pile 7 is distributed in a shape like a Chinese character 'Yi'. The vertical arrangement of the embedded pile 7 and the large-gradient end of the wave-reducing slope 2 is favorable for sand-soil filling, the embedded pile 7 of the bank protection concrete block is integrally embedded into a sand stone layer or a soil layer of the bank, the vertical holding force of the concrete block on the bank is enhanced, the looseness or the sliding of the bank protection concrete block is greatly reduced, the bank protection concrete block is enabled to have a high-strength light structure, and meanwhile, the protection of the bank structure and the protection of the safety of the residents are also favorable.
The lap joint between the upper splice section 13 and the lower splice section 14 or between the left splice section 15 and the right splice section 16 can adopt alignment or dislocation lap joint. The preferred dislocation overlap joint of overlap joint mode makes wave reduction slope 2 and each concatenation section distribute each other in a staggered way, and overall structure atress is more even, reduces the emergence of the structural failure condition.
Example 2:
as shown in fig. 8 to 11, the basic structure of the revetment concrete block of this embodiment is the same as that of embodiment 1, except that some different forms of revetment concrete block have been illustrated. As shown in fig. 8 and 10, the shapes of the base 1 are respectively a straight quadrangular prism and a straight octagonal prism, and the projections of the wave-reducing slope 2 which are related to the change of the base 1 are respectively a quadrangle and an octagon, so that the structure can be selected according to the laying requirements. As shown in fig. 8 and 9, the embedded pile 7 adopts a cross-shaped arrangement, the structure of the embedded pile 7 including the ribs 71 or the steps 72 is changed, the structure of the ribs 71 close to the steps 72 is reduced under the condition of not affecting the structural strength, so that the weight is reduced, or the holding power of the embedded pile 7 and the embankment foundation is further increased by widening the size of the steps 72, and the same principle as that in fig. 11 is adopted. The present embodiments are to be considered in all respects as illustrative and not restrictive.
Example 3:
when the bank protection concrete block is practically used, a constructor lays the bank protection concrete block on a pre-laid and compacted mud-sand layer or a soil layer bank, and tamps the concrete block in a cavity formed between the embedded pile 7 and the mud-sand layer or the soil layer of the bank by using sand to increase the holding power. The upper splicing section 13 and the lower splicing section 14 of the adjacent concrete blocks are in staggered lap joint, the left splicing section 15 and the right splicing section 16 are in aligned lap joint, the wave reducing slope 2 and the splicing sections are distributed in a staggered mode, the splicing sections are weak points, double-layer superposition supporting is carried out, the stress of the whole structure is more uniform, and the occurrence of the structural damage condition is reduced. The upper seepage hole 3 and the lower seepage hole 4 are formed by a plurality of through holes, the upper seepage hole 3 between every two concrete blocks after being overlapped is directly above or obliquely above the lower seepage hole 4 and forms a complete embankment system drainage channel together with the transverse gap 8 or the longitudinal gap 9 formed by each corresponding splicing section, the rapid discharge of the seepage water of a silt layer under the action of gravity is facilitated, the hole position staggering is helpful for avoiding the direct impact of water flow on the silt layer of the embankment, the soil loss caused by scouring is reduced, the structural damage is caused to fall off, and the service life is prolonged. The part of the embedded pile 7 can be directly held by constructors during carrying, the wave reducing slope 2 of the revetment concrete block which can be laid in advance is a foothold, friction is increased, holding and pinching are convenient, alignment and leveling are easy, and repeated operation is carried out until a specified area is laid.
Conventional techniques in the above embodiments are known to those skilled in the art, and therefore, will not be described in detail herein.
The above embodiments are merely illustrative, and not restrictive, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (4)
1. Revetment concrete block, including base plate (1), its characterized in that: the wave reducing slope (2) is connected to the rear surface (12) of the substrate (1), the wave reducing slope (2) is an arc-shaped structural section, at least one slope is gradually decreased from top to bottom, the slope faces the wave reducing slope (2), the direction is upward from the large slope, and the clockwise direction is upward, right, downward and left; the front surface (11) of the base plate (1) is connected with a buried pile (7), and the whole buried pile (7) is buried in a sand stone layer or a soil layer of the embankment to a depth greater than the thickness of a block body of the base plate (1); the upper side, the lower side, the left side and the right side of the substrate (1) are respectively connected with an upper splicing section (13), a lower splicing section (14), a left splicing section (15) and a right splicing section (16); the upper splicing section (13) is provided with an upper water seepage hole (3), and the lower splicing section (14) is provided with a lower water seepage hole (4); the substrate (1) is a straight quadrangular prism or other straight regular polygonal prisms; the cross section of the upper splicing section (13) comprises a first straight line section (131), one side of the first straight line section (131) in the length direction is connected with a second vertical straight line section (132), one side, far away from the first straight line section (131), of the second straight line section (132) is connected with a boss (133), the boss (133) is an arc line or broken line section boss, one side, far away from the second straight line section (132), of the boss (133) is provided with a first abutting edge (134) parallel to the second straight line section (132), one side, close to the first straight line section (131), of the first abutting edge (134) is connected with an arc-shaped or broken line-shaped groove (135), one side, far away from the second straight line section (132), of the groove (135) is connected with a second abutting edge (136), and the second abutting; when the revetment concrete blocks are lapped, the straight-line section II (132) of the upper splicing section (13) is matched with the edge-abutting section II (136) of the lower splicing section (14), the straight-line section II (132) of the left splicing section (15) is matched with the edge-abutting section II (136) of the right splicing section (16), the boss (133) is matched with the groove (135), and the rear surfaces (12) of the substrates of the revetment concrete blocks are coplanar; the upper splicing section (13) and the lower splicing section (14) are identical in structure, the left splicing section (15) and the right splicing section (16) are identical in structure, the cross sections of all the splicing sections are identical in shape, the plane of a straight line segment I (131) of the upper splicing section (13) is coplanar with the rear surface (12) of the substrate, the plane of a straight line segment I (131) of the lower splicing section (14) is coplanar with the front surface (11) of the substrate, the plane of a straight line segment I (131) of the left splicing section (15) and the plane of a straight line segment I (131) of the right splicing section (16) are respectively coplanar with the plane of a straight line segment I (131) of the upper splicing section (13) and the plane of a straight line segment I (131) of the lower splicing section (14) in pairs; when the plane of the straight line segment I (131) of the upper splicing section (13) is the same as the plane of the straight line segment I (131) of the right splicing section (16), the upper right corner of the rear surface (12) of the substrate and the lower left corner of the front surface (11) of the substrate are respectively connected with a square block I (5) and a square block II (6); when the plane of the straight line segment I (131) of the upper splicing section (13) is the same as the plane of the straight line segment I (131) of the left splicing section (15), the upper left corner of the rear surface (12) of the substrate and the lower right corner of the front surface (11) of the substrate are respectively connected with a square block I (5) and a square block II (6), and the square block I (5) and the square block II (6) have the same structure and are both square prisms; go up splice section (13) and splice section (14) overlap joint back and have horizontal space (8) down, there is vertical space (9) after splice section (15) and the overlap joint of right side splice section (16) on a left side, go up infiltration hole (3), infiltration hole (4) down, horizontal space (8) and vertical space (9) and constitute embankment system infiltration water discharge passage jointly.
2. The revetment concrete block of claim 1, wherein: the upper water seepage hole (3) and the lower water seepage hole (4) are formed by a plurality of through holes, and after the upper water seepage hole (3) is overlapped with the lower water seepage hole (4), the upper water seepage hole is directly above or obliquely above the lower water seepage hole.
3. The revetment concrete block of claim 1, wherein: pile burying (7) are including muscle (71), muscle (71) are rectangular shape or frustum shape, have transition angle (73) with base plate front surface (11) junction, transition angle (73) are fillet or chamfer, the one end that base plate front surface (11) were kept away from in muscle (71) is connected with protruding rank (72) of perpendicular to muscle (71), protruding rank (72) cross sectional shape is triangle-shaped or quadrangle or toper or circular or arrow point shape or waist shape, pile burying (7) wholly become "one" or "ten" or "meter" font.
4. The revetment concrete block of claim 1, wherein: the lap joint mode between the upper splicing section (13) and the lower splicing section (14) or between the left splicing section (15) and the right splicing section (16) can adopt alignment or dislocation lap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138845.2A CN111411609B (en) | 2020-03-03 | 2020-03-03 | Concrete block for bank protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138845.2A CN111411609B (en) | 2020-03-03 | 2020-03-03 | Concrete block for bank protection |
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| Publication Number | Publication Date |
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| CN111411609A CN111411609A (en) | 2020-07-14 |
| CN111411609B true CN111411609B (en) | 2021-06-22 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8810345U1 (en) * | 1988-08-16 | 1988-12-22 | Knudsen, Poul Nyboe, Kopenhagen | Sheet body for use in a cladding to protect the slopes of beaches, lake shores, rivers or canals against erosion |
| CN2289827Y (en) * | 1997-03-17 | 1998-09-02 | 戚成喜 | Revement plate for flood bank |
| CN2365261Y (en) * | 1998-09-03 | 2000-02-23 | 彭继源 | Laid-in concrete breakwater |
| KR200183593Y1 (en) * | 1999-12-27 | 2000-05-15 | 양원회 | A covering block of the coast line of embankment or waterways |
| CN2737831Y (en) * | 2004-01-09 | 2005-11-02 | 郑士元 | Compoiste board |
| CN101942819A (en) * | 2010-09-01 | 2011-01-12 | 河南省水利勘测设计研究有限公司 | Concrete plate roughening slope protection structure |
| CN203583431U (en) * | 2013-11-07 | 2014-05-07 | 浙江万里建设工程有限公司 | Dam |
| CN204530617U (en) * | 2015-04-14 | 2015-08-05 | 广东梅雁吉祥水电股份有限公司 | A kind of dam with buffering slope |
| CN204551377U (en) * | 2015-04-16 | 2015-08-12 | 广东梅雁吉祥水电股份有限公司 | Flow-guiding type bank protection on a kind of power station |
| CN204875687U (en) * | 2015-07-17 | 2015-12-16 | 河海大学 | Chain preformed block of river course bank protection |
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2020
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