CN214737838U - A block structure for mud-rock flow disaster is administered - Google Patents

A block structure for mud-rock flow disaster is administered Download PDF

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CN214737838U
CN214737838U CN202120731428.9U CN202120731428U CN214737838U CN 214737838 U CN214737838 U CN 214737838U CN 202120731428 U CN202120731428 U CN 202120731428U CN 214737838 U CN214737838 U CN 214737838U
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debris flow
steel
group
anchor
deeply
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郑志龙
王丽君
陈洋
宋书志
李国庆
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PowerChina Chengdu Engineering Co Ltd
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PowerChina Chengdu Engineering Co Ltd
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Abstract

The utility model discloses a block the structure, especially relate to a block the structure for debris flow disaster control belongs to hydraulic and hydroelectric engineering building design and construction technical field. The retaining structure for treating the debris flow disasters is low in cost, short in construction period and capable of being recycled. The retaining structure comprises a deeply buried foundation system and a debris flow retaining system, wherein the debris flow retaining system is detachably arranged in a gully needing debris flow disaster treatment through the deeply buried foundation system arranged in a foundation in advance.

Description

A block structure for mud-rock flow disaster is administered
Technical Field
The utility model relates to a retaining structure especially relates to a retaining structure for debris flow disaster control belongs to hydraulic and hydroelectric engineering building design and construction technical field.
Background
Interpretation of terms:
steel structure: a structural form mainly composed of steel materials such as section steel, steel plate, etc.;
mud-rock flow: debris flow is a common geological disaster in mountainous areas, and is a special flood flow which is generated on valleys or hills by rainfall such as rainstorm, glaciers and snow melting water and carries a large amount of solid matters such as silt, stones, boulders and the like;
mud-rock flow structure of blocking: structures or constructions for retaining debris flow, such as retaining dams, grid dams, and the like.
The engineering measures of debris flow as one of the most common geological disasters in mountainous areas mainly include water control engineering such as water storage engineering, drainage guide engineering, soil control engineering for controlling loose solid sources such as retaining dam, grid dam, retaining wall, slope protection and dam diving engineering, drainage engineering such as drainage guide dam, water-guiding dam, diversion dam, aqueduct, open cave and the like, and silt stopping engineering such as silt stopping field and silt stopping warehouse and the like.
The blocking dam, the grid dam and the like in the engineering treatment measures are subjected to engineering practice for many years, the technical conditions are mature day by day, and more measures are adopted in the debris flow treatment engineering. In terms of the current engineering application, the blocking dam mostly adopts a solid gravity type structure, commonly used are a stone masonry dam, a concrete dam, a reinforced gabion dam and the like, the concrete or stone masonry gravity dam is the most commonly used dam type in debris flow prevention and control in China at present, and the reinforced gabion dam is more applied to debris flow temporary prevention and control engineering. The grid dam is more in kind, can divide into two types according to its structure and structure: one is a dam body formed by opening flow notches or arranging flow grids on a solid masonry gravity dam, such as a comb-tooth dam, a beam dam, a rake dam, a sieve dam and the like; the other is a dam body composed of rod members such as steel pipes, profile steels, anchor cables and the like, such as a lattice dam, a pile forest and the like. The dam body type of the retaining dam and the grid dam is still mainly a concrete structure, and the retaining dam and the grid dam generally have the characteristics of large structure volume, more material consumption, longer construction period and the like, and have the engineering problems of foundation pit excavation, side slope excavation, large-diameter pile hole forming and the like.
As mentioned above, the existing debris flow blocking technology mostly adopts a gravity type blocking structure, and mainly has the following four disadvantages and problems: firstly, a debris flow blocking structure mainly adopting a gravity type structure generally has the defects of large volume of masonry, more material consumption and the like, and possibly causes higher debris flow treatment cost; secondly, limited by conditions such as geography, terrain, traffic and the like, the existing debris flow blocking technology is often difficult to construct, possibly causes the construction period of debris flow control engineering to be too long, and has poor practicability when being applied to temporary or emergency engineering; the existing debris flow prevention and control means construction mostly has the problems of foundation pit, side slope excavation, large-diameter pile hole forming and the like, and the construction excavation may bring the risks of secondary disasters such as foundation pit collapse, side slope instability, pile hole collapse and the like; and fourthly, the existing debris flow prevention and control means mostly adopt cast-in-place construction, generally cannot be assembled, welded and the like on site, and mostly cannot be disassembled, recycled and reused, so that the problem of resource waste exists.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the retaining structure for treating the debris flow disasters is low in cost, short in construction period and capable of being recycled.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a block structure for debris flow disaster is administered, block structure including burying basic system and debris flow system of blocking deeply, debris flow system of blocking arrange in the gully that the debris flow disaster was administered in needs through arranging in advance in the deep basic system detachable that buries in the ground.
Further, bury deeply basic system include coupling assembling and bury deeply the stock subassembly at least, bury deeply in the stock subassembly inserts the ground downwards, coupling assembling arrange the upper end at burying deeply the stock subassembly, debris flow retaining system pass through coupling assembling and bury deeply basic system detachable and be connected.
In a preferred mode of the above scheme, the deeply buried foundation system further comprises anchor holes arranged in the corresponding foundation, and the deeply buried anchor rod assemblies inserted into the foundation are consolidated in the corresponding anchor holes through mortar in the corresponding anchor holes.
Furthermore, the connecting assembly comprises a plurality of groups of connecting steel plate sets, the deeply-buried anchor rod assembly comprises a plurality of groups of deeply-buried anchor rod sets, the connecting steel plate sets are correspondingly arranged at the upper ends of the deeply-buried anchor rod sets respectively, and the lower end of the debris flow blocking system is detachably connected with the connecting steel plate sets.
The preferable mode of the above scheme is that each group of the deeply-buried anchor rod group comprises four deeply-buried anchor rods, four connecting holes are respectively formed in each group of the connecting steel plate group, and the upper ends of the four deeply-buried anchor rods are respectively fixedly sleeved in the connecting holes through corresponding fixing nuts.
Furthermore, each group of connecting steel plate groups comprises an anchor plate and a connecting plate, the connecting plate is fixedly arranged on the anchor plate, the connecting hole is formed in the anchor plate, and the lower end of the debris flow retaining system is detachably connected with the connecting plate of each group of connecting steel plate groups respectively.
The preferable mode of the scheme is that the debris flow blocking system comprises one or more groups of steel debris flow blocking pieces, and one group of steel debris flow blocking pieces or all groups of steel debris flow blocking pieces detachably connected into a whole are fixedly connected with the connecting plate through the lower ends of the steel debris flow blocking pieces in a detachable mode.
Furthermore, the projection of the steel debris flow blocking piece group in the vertical section of the steel debris flow blocking piece group is a right trapezoid which is gradually enlarged downwards.
Furthermore, vertical extension sections which extend upwards and downwards are respectively arranged at the upper end and the lower end of the steel debris flow blocking piece group of the right trapezoid.
The utility model has the advantages that: this application is through setting up one set and including burying basic system and mud-rock flow retaining system's blocking structure deeply, and will mud-rock flow retaining system arrange in the gully that needs carry out mud-rock flow disaster and administer through arranging in advance in the foundation deeply bury basic system detachable. Therefore, when a debris flow carrying a large amount of silt, stones and boulders is formed on a valley or a hillside due to precipitation such as rainstorm, glacier and snow melting water and is discharged to the blocking structure, the debris flow can be effectively blocked between mountain bodies in the blocking structure, and the treatment of debris flow disasters is realized. Because the retaining structure of this application is by arranging in advance in the deep foundation system that buries in the ground, supports the debris flow retaining system who has the function of blocking and must realize, blocks the debris flow retaining structure of dam or grid dam structural style that adopts from having changed among the prior art to can effectual reduction build cause, shorten construction cycle, simultaneously because debris flow retaining system is detachable arranges burying foundation system deeply, can also realize reuse's purpose.
Drawings
FIG. 1 is a schematic cross-sectional view of a retaining structure for debris flow disaster control according to the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic layout of the deep-buried foundation system according to the present invention;
FIG. 4 is a cross-sectional view C-C of FIG. 3;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 3;
fig. 6 is a schematic plan view of the retaining structure according to the present invention.
Labeled as: the device comprises a deeply buried foundation system 1, a debris flow blocking system 2, a foundation 3, a connecting assembly 4, a deeply buried anchor rod assembly 5, an anchor hole 6, mortar 7, a connecting steel plate assembly 8, a deeply buried anchor rod assembly 9, a deeply buried anchor rod 10, a connecting hole 11, a fixing nut 12, an anchor plate 13, a connecting plate 14, a steel debris flow blocking assembly 15 and a vertical extension section 16.
Detailed Description
As shown in fig. 1 to 6, the present invention provides a retaining structure for debris flow disaster control, which has a low cost, a relatively short construction period, and can be reused, and a construction method for installing the retaining structure. The retaining structure comprises a deeply buried foundation system 1 and a debris flow retaining system 2, wherein the debris flow retaining system 2 is detachably arranged in a gully needing debris flow disaster treatment through the deeply buried foundation system 1 arranged in a foundation 3 in advance. This application is through setting up one set and including burying basic system and mud-rock flow retaining system's blocking structure deeply, and will mud-rock flow retaining system arrange in the gully that needs carry out mud-rock flow disaster and administer through arranging in advance in the foundation deeply bury basic system detachable. Therefore, when a debris flow carrying a large amount of silt, stones and boulders is formed on a valley or a hillside due to precipitation such as rainstorm, glacier and snow melting water and is discharged to the blocking structure, the debris flow can be effectively blocked between mountain bodies in the blocking structure, and the treatment of debris flow disasters is realized. Because the retaining structure of this application is by arranging in advance in the deep foundation system that buries in the ground, supports the debris flow retaining system who has the function of blocking and must realize, blocks the debris flow retaining structure of dam or grid dam structural style that adopts from having changed among the prior art to can effectual reduction build cause, shorten construction cycle, simultaneously because debris flow retaining system is detachable arranges burying foundation system deeply, can also realize reuse's purpose.
Above-mentioned embodiment, in order to facilitate the arrangement of burying basic system deeply, the application bury basic system 1 deeply include coupling assembling 4 and bury stock subassembly 5 deeply at least, bury stock subassembly 5 deeply insert ground 3 in, coupling assembling 4 arrange in bury stock subassembly 5 deeply upper end, mud-rock flow retaining system 2 pass through coupling assembling 4 and bury basic system 1 detachable and be connected deeply. And correspondingly, the deep-buried foundation system 1 of the present application further comprises anchor holes 6 provided in the corresponding foundation, and the deep-buried anchor rod assemblies 5 inserted into the foundation 3 are consolidated in the corresponding anchor holes 6 by mortar 7 in the corresponding anchor holes 6. At this moment, the connecting assembly 4 may include a plurality of groups of connecting steel plate groups 8, the deeply buried anchor rod assembly 5 may include a plurality of groups of deeply buried anchor rod groups 9, each group of the connecting steel plate groups 8 are respectively and correspondingly arranged at the upper end of each group of the deeply buried anchor rod groups 9, and the lower end of the debris flow retaining system 2 is detachably connected with each group of the connecting steel plate groups 8. Each group of the deep-buried anchor rod group 9 preferably includes four deep-buried anchor rods 10, four connecting holes 11 are respectively formed in each group of the connecting steel plate group 8, and the upper ends of the four deep-buried anchor rods 10 are respectively fixedly sleeved in the connecting holes 11 through corresponding fixing nuts 12. Each group of the connecting steel plate groups 8 preferably comprises an anchor plate 13 and a connecting plate 14, the connecting plate 14 is fixedly arranged on the anchor plate 13, the connecting holes 11 are formed in the anchor plate 13, and the lower ends of the debris flow retaining system 2 are detachably connected with the connecting plates 14 of the connecting steel plate groups 8 respectively.
Further, for furthest's improvement block the effect that the structure blockked the mud-rock flow, improve the improvement to the treatment ability of mud-rock flow calamity, this application mud-rock flow block system 2 including a set of or multiunit steel mud-rock flow block group 15, a set of steel mud-rock flow block group 15 or detachable connect as each holistic steel mud-rock flow block group 15 through its lower extreme detachable and connecting plate 14 fixed connection. At this time, the steel debris flow barrier group 15 preferably has a right-angled trapezoid structure with a downward gradually enlarged projection in a vertical section thereof. Meanwhile, in order to extend the blocking capability, and to facilitate the connection, vertical extensions 16 extending upward and downward are provided at the upper and lower ends of the right-angled trapezoidal steel debris flow blocking member group 15, respectively.
Thus, the retaining structure can be constructed and installed according to the following steps:
A. preliminarily selecting the arrangement position of the debris flow retaining structure, and selecting a proper arrangement position of the retaining structure according to the site topographic and geological conditions, debris flow development characteristics and related control requirements;
B. acquiring debris flow design parameters, and at least acquiring basic parameters required by the following debris flow treatment design at the position where the blocking structure is supposed to be arranged through the debris flow special research, wherein the basic parameters comprise the gravity of the debris flow, the flow speed, the amount of solid substances flushed out at one time, the overall impact force and the maximum impact force of a single block;
C. carrying out debris flow treatment design, including the design of the plane position, the axis arrangement, the longitudinal length, the transverse height of the retaining structure and the specific size and model of the structural material;
D. and (3) performing basic lofting: carrying out foundation lofting according to a debris flow treatment design drawing, and determining the position of a blocking axis and the position of an anchor hole of an anchor rod foundation;
E. drilling, namely drilling holes by adopting a drilling machine or a down-the-hole drill at the anchor hole positions placed in the step D according to geological conditions, and finishing the holes after the holes are drilled to a design elevation;
F. putting an anchor rod, putting the anchor rod with the top end provided with the threads in advance into the anchor hole downwards to reach a designed height, and taking temporary stabilizing measures;
G. grouting, namely grouting mortar into the hole from bottom to top, fully grouting to a designed top elevation, and curing for a certain time according to the specification;
H. installing anchor plates, setting and hardening anchor rod mortar after a certain period of time, leveling the positions for placing the anchor plates, placing the anchor plates with four pre-opened holes at the four corners of the end of the anchor rod, and fastening by adopting nuts;
I. installing a connecting steel plate: after the anchor plates are installed, installing a connecting steel plate on each anchor plate, and welding the peripheries of the connecting steel plates by adopting fillet welds to connect the connecting steel plates with the foundation anchor plates;
J. installing a steel debris flow blocking piece group, installing the steel debris flow blocking piece group above the connecting steel plate after the connecting steel plate is installed, and fastening by adopting bolts;
K. demolish recovery and recycle, to being applied to the interim or emergent protection of mud-rock flow, after mud-rock flow retaining structure performance interim protection or emergent guard action, can demolish upper portion component in proper order, realize resource recycling to the environmental protection.
It should be noted that the hollow arrows in the figure indicate the flow direction of the debris flow.
In conclusion, the technical scheme provided by the application for treating the debris flow disaster also has the following advantages,
the utility model provides a novel mud-rock flow structure of blocking based on steel construction comprises upper portion steel construction, intermediate junction structure and lower part stock basis triplex. The upper block is made of steel structure and mainly comprises section steel, steel plates, nuts, bolts and the like; the lower foundation adopts an anchor rod foundation and mainly comprises an anchor rod, an anchor plate, a nut and the like; the upper structure and the lower structure are connected by steel plates (welded or bolted). The debris flow blocking structure has less material consumption and lower treatment cost; the steel can be assembled, welded and fastened by bolts on site, the construction is convenient, and the construction period is short; large excavation and large digging do not exist, the possibility of secondary disasters caused by construction is low, and the construction is relatively safe; and can be dismantled and retrieved, realize the resource and recycle, protect the environment. The method is convenient, effective, safe, economic and environment-friendly for permanent treatment of the debris flow in the mountainous area, in particular temporary or emergency treatment of small and medium-sized debris flow.
Of course, the anchor rod and the anchor plate are connected through the nuts, the length of the upper end of the anchor rod can be lengthened correspondingly, the anchor rod is bent by 90 degrees, and the anchor rod and the anchor plate are connected through welding; in the anchor rod foundation, the anchor rod can be replaced by anchor bar bundles, steel pipes or section steel and the like.
Example one
This application aims at providing a novel mud-rock flow structure of blocking based on the steel construction, solves bulky, the expense height that traditional mud-rock flow prevention and cure technique exists, the construction degree of difficulty is big, the construction cycle length, exist to open greatly dig, can not assemble on the spot and can not dismantle shortcoming and problem such as recycle. The application discloses a novel debris flow retaining structure based on steel structure, which comprises an upper structure, namely the debris flow retaining system, a connecting structure, namely the connecting assembly, and a lower structure, namely the deep-buried anchor rod assembly, and is as shown in accompanying drawings 1-6. The upper structure mainly has the function of blocking debris flow, the lower structure mainly has the function of providing a foundation (bearing capacity, impact resistance, pull-out resistance and the like) for the upper structure, and the intermediate connecting structure mainly has the function of connecting the upper structure and the lower structure to form a complete debris flow blocking structure.
1. The upper structure is as follows: the upper structure is made of steel, mainly composed of section steel, steel plate, nut and bolt, and mainly including the following items
Figure BDA0003014509080000051
The device consists of 15 parts, and the function of the device is mainly to block debris flow.
The steel plate: the blocking structure is arranged along the axial direction of the blocking structure on the mud-back flow side, steel plates with the model specification of-10 multiplied by 2500 multiplied by 5000 are adopted, Q235B steel is adopted, and 1 block of material is used for each unit of blocking structure (5m, the same below), and the blocking structure is a main component on the mud-back flow side of the upper structure.
Steel plate: the steel plates with the model specification of-10 multiplied by 280 multiplied by 495.8 are vertically arranged along the upper part of the cross section of the unit node, Q235B steel is adopted, 4 blocks of materials are used for each unit blocking structure, and the blocking structure mainly has the functions of connecting a component (i) with a component (iii) and strengthening the transverse connection of the upper part of the blocking structure;
③ steel plate: the unit node face debris flow side is arranged, the steel plates with the model specification of-10 multiplied by 300 multiplied by 439 adopt Q235B steel, and each unit block structure material is 4, which is one of the main components of the upper structure face debris flow side.
Fourthly, H-shaped steel: the blocking structure is arranged near the upper part along the axial direction of the blocking structure, I-shaped steel I28a-5000 with the specification adopts Q235 steel, 1 block of material for each unit of the blocking structure is used as a main transverse connecting and reinforcing component, the mud-stone flow side is welded with the component firstly, and the mud-stone flow side is welded with the component thirdly and the component fifthly respectively from top to bottom.
Steel plate: the unit node face debris flow side is obliquely arranged, steel plates with the specification of-10 multiplied by 300 multiplied by 1396 are adopted, Q235B steel is adopted, 4 blocks of materials for each unit blocking structure are used, and the materials are main attack faces of the debris flow side of the upper structure face.
Steel plate: arranged along the middle part of the cross section of the unit node, steel plates with the model specification of-10 multiplied by 145 multiplied by 293 are made of Q235B steel, and each unit is provided with 8 blocks of materials for blocking the structure, which are mainly matched with the components
Figure BDA0003014509080000061
And welding the parts to strengthen the transverse rigidity of the middle part of the upper structure.
And seventh, steel plate: the middle lower part of the cross section of the unit node is vertically arranged, steel plates with the model specification of-10 multiplied by 630 multiplied by 1489.3 are made of Q235B steel, 4 blocks of materials are used for each unit blocking structure, and the blocking structure mainly has the functions of connecting parts I and fifthly and strengthens the transverse rigidity of the middle lower part of the blocking structure.
Eighty percent I-steel: the blocking structure is arranged near the lower part along the axial direction of the blocking structure, I-shaped steel I63a-5000 with the specification adopts Q235 steel, 1 block of blocking structure material is used in each unit, the blocking structure material is a main transverse connecting and reinforcing component, the mud stone flow side is welded with the component I, and the mud stone flow side is welded with the component III from top to bottom respectively.
Ninthly, steel plate: arranged along two sides of the cross section of the unit node, steel plates with the model specification of-10 multiplied by 142 multiplied by 250 are made of Q235B steel, a blocking structure of each unit is made of 16 blocks of the steel, and the steel plates and the components are connected
Figure BDA0003014509080000062
And a component
Figure BDA0003014509080000063
And welding to strengthen the stability of the root of the upper blocking structure.
R steel plate: the unit nodes are vertically arranged along the mud stone flow side, the steel plates with the model specification of-10 multiplied by 300 multiplied by 412 are made of Q235B steel, and 4 blocks of materials for each unit retaining structure are one of main components on the mud stone flow side of the upper structure surface.
Figure BDA0003014509080000064
Steel plate: vertically arranged along the cross section of unit node, steel plate with-10X 110X 250 model, Q235B steel material, 8 blocks for blocking structure, connecting parts (R, R and C)
Figure BDA0003014509080000065
Strengthen the stability of upper portion retaining structure root.
Figure BDA0003014509080000066
Steel plate: the steel plates with the model specification of-16 multiplied by 630 multiplied by 493.5 are vertically arranged along the lower part of the cross section of the unit node, Q235B steel is adopted, 4 blocks of materials for each unit block structure are adopted, and the functions of the steel plates are mainly connected with the components
Figure BDA0003014509080000067
And the transverse rigidity of the lower part of the blocking structure is enhanced.
Figure BDA0003014509080000071
Steel plate: the unit node is transversely arranged along the bottom of the cross section of the unit node, steel plates with the specification of-20 multiplied by 300 multiplied by 860 adopt Q235B steel, 4 blocks of blocking structure materials of each unit are mainly connected with lower connecting plates of the blocking structure materials.
Figure BDA00030145090800000715
Channel steel: the middle part of the retaining structure is transversely arranged along the axial direction of the retaining structure, channel steel (16 a-5000) with the model specification adopts Q235 steel, 1 block of the retaining structure material is used in each unit, and the retaining structure material is mainly welded to the first part to strengthen the transverse rigidity of the upper structure.
Figure BDA0003014509080000072
Steel plate: the steel plates with the model specification of-10 multiplied by 80 are transversely arranged along the bottom of the cross section of the unit node, Q235B steel is adopted, and 4 blocks of the blocking structure materials are used in each unit.
Figure BDA0003014509080000073
Form the vertical extension section 16 extending upwards, wherein
Figure BDA00030145090800000722
Constituting the above steel debris flow barrier group 15, wherein ninthly to
Figure BDA0003014509080000074
Forming a downwardly extending vertical extension 16.
2. The connection structure is as follows: the intermediate connection structure adopts a steel structure, mainly comprises a steel plate, a nut, a bolt and the like, and mainly comprises
Figure BDA00030145090800000723
Figure BDA00030145090800000716
The anchor rod consists of 3 parts, and the function of the anchor rod is mainly to connect an upper steel structure and a lower anchor rod foundation.
Figure BDA0003014509080000075
Steel plate: using Q235B steel material, 2 blocks are arranged at each unit node, and 8 blocks are arranged at each unit node, which are main components of the connecting structure and components of the superstructure
Figure BDA00030145090800000717
Fastened by bolts to parts of the lower anchor foundation
Figure BDA0003014509080000076
Fillet weld welding is adopted.
Figure BDA00030145090800000718
Nut: 4 per unit node, 16 per unit retaining structural material, functioning to fasten the superstructure elements
Figure BDA0003014509080000079
And connecting structural member
Figure BDA0003014509080000077
Figure BDA00030145090800000710
Fillet weld: component arranged on connecting structure
Figure BDA0003014509080000078
All around, by welding with parts of the substructure
Figure BDA00030145090800000724
And (4) connecting.
Wherein
Figure BDA00030145090800000711
For the above-mentioned connecting plate,
Figure BDA00030145090800000712
not mentioned above.
3. The lower structure is as follows: the lower part foundation adopts an anchor rod foundation, mainly comprises an anchor rod, an anchor plate, a nut and the like, and mainly comprises
Figure BDA00030145090800000725
Figure BDA00030145090800000713
A total of 5 parts, the function of which is mainly to provide the foundation (bearing capacity, impact resistance, resistance to plucking, etc.) for the superstructure.
Figure BDA00030145090800000714
Anchor plate: Q235B steel is adopted, holes are formed in advance at 4 corners, 2 blocks are arranged at each unit node, and 8 blocks are arranged at each unit blocking structure, and are fastened with anchor rods through bolts.
Anchor rod: HRB400 steel bars are adopted, the diameter and the length are determined according to design requirements, the part of the upper end head, which exceeds the anchor plate, is pre-processed into screw rods, 8 nodes of each unit are arranged, and 32 materials for the retaining structure of each unit are used.
Nut: the number of the anchor rods arranged at the end of the anchor rod is 4, and the number of the blocking structure materials for each unit is 32, so that the anchor rods and the anchor plates are fastened.
Anchor eye: mechanical drilling is adopted, the hole diameter is generally small, and the hole diameter and the hole depth are determined according to design requirements;
mortar: the mortar strength is specifically determined according to design requirements, and the anchor rod and surrounding rock and soil bodies are bonded under the action of the mortar strength to form an anchoring body.
Figure BDA00030145090800000719
In order to be the anchor plate described above,
Figure BDA00030145090800000720
in the case of the above-described anchor rod,
Figure BDA00030145090800000721
in order to fix the nut as described above,
Figure BDA00030145090800000726
in order to be the anchor eye as described above,
Figure BDA00030145090800000727
the mortar is described above.
In concrete implementation, the debris flow protection structure embodiment in the present application includes the following steps, with reference to the attached drawings (see fig. 1 to fig. 6) of the present application:
A. preliminarily selecting the distribution position of the debris flow blocking structure: selecting a proper arrangement position of the blocking structure according to site terrain geological conditions, debris flow development characteristics, prevention and control related requirements and the like, such as arrangement in a debris flow circulation area (blocking effect) or a debris flow accumulation area (silt stopping effect);
B. obtaining debris flow design parameters: through the research of the mud-rock flow special subject, basic parameters required by the mud-rock flow treatment design such as the mud-rock flow gravity, the flow velocity, the one-time solid substance flushing amount, the integral impact force, the single block maximum impact force and the like at the position where the blocking structure is supposed to be arranged are obtained;
C. developing a debris flow treatment design: the structure comprises the plane position, the axis arrangement, the longitudinal length, the height, the structural material and other specific sizes, models and the like of the blocking structure;
D. and (3) performing basic lofting: carrying out foundation lofting according to a debris flow treatment design drawing, and determining the position of a blocking axis, the position of an anchor hole of an anchor rod foundation and the like;
E. drilling: d, drilling holes at the anchor hole positions placed in the step D by using a drilling machine or a down-the-hole drill according to geological conditions, and finally drilling holes to a designed height;
F. putting an anchor rod: placing an anchor rod (the top end is processed by a screw rod in advance) into the anchor hole to a designed height, and taking temporary stabilizing measures;
G. grouting: pouring mortar into the hole from bottom to top, filling the mortar to the designed top elevation, and maintaining for a certain time;
H. installing an anchor plate: after the anchor rod mortar is solidified and hardened for a certain time, the position for placing the anchor plate is leveled, the anchor plate (holes are formed in four corners in advance) is placed at the end of the anchor rod, and the anchor plate is fastened by adopting nuts;
I. installing a connecting steel plate: after the anchor plates are installed, installing a connecting steel plate on each anchor plate, and welding the peripheries of the connecting steel plates by adopting fillet welds to connect the connecting steel plates with the foundation anchor plates;
J. mounting superstructure (component)
Figure BDA0003014509080000081
): after the connecting steel plates are installed, upper structural parts are installed above the connecting steel plates (two connecting steel plates correspond to one part)
Figure BDA0003014509080000082
) And using bolts (parts)
Figure BDA0003014509080000084
) Fastening of the parts
Figure BDA0003014509080000085
And a component
Figure BDA0003014509080000086
Connecting;
K. mounting superstructure (component)
Figure BDA0003014509080000083
-first): the various components of the superstructure are installed in sequence
Figure BDA0003014509080000087
→ ninthly → (r) → r. And after the upper structure is installed, the debris flow retaining structure is also constructed.
L, dismantling, recycling and reusing. For temporary or emergency protection applied to debris flow, after the debris flow blocking structure plays a role in temporary protection or emergency protection, the upper components can be sequentially detached, so that resource recycling is realized, and the environment is protected.

Claims (9)

1. The utility model provides a block structure for mud-rock flow disaster is administered which characterized in that: the retaining structure comprises a deeply-buried foundation system (1) and a debris flow retaining system (2), wherein the debris flow retaining system (2) is detachably arranged in a gully needing to be subjected to debris flow disaster treatment through the deeply-buried foundation system (1) arranged in a foundation (3) in advance.
2. The retaining structure for debris flow disaster remediation of claim 1, wherein: deeply bury basic system (1) include coupling assembling (4) and deeply bury stock subassembly (5) at least, deeply bury stock subassembly (5) insert ground (3) downwards in, coupling assembling (4) arrange the upper end at deeply burying stock subassembly (5), mud-rock flow retaining system (2) pass through coupling assembling (4) and deeply bury basic system (1) detachable and be connected.
3. The retaining structure for debris flow disaster remediation of claim 2, wherein: the deep-buried foundation system (1) further comprises anchor holes (6) arranged in the corresponding foundation, and the deep-buried anchor rod assemblies (5) inserted into the foundation (3) are solidified in the corresponding anchor holes (6) through mortar (7) in the corresponding anchor holes (6).
4. A retaining structure for debris flow disaster remediation according to claim 2 or 3, wherein: coupling assembling (4) including multiunit connection steel plate group (8), deeply bury stock subassembly (5) including multiunit anchor rod group (9) deeply, each group connection steel plate group (8) respectively correspond arrange each group deeply the upper end of anchor rod group (9) deeply, the lower extreme and each group of mud-rock flow retaining system (2) the connection steel plate group (8) detachable be connected.
5. The retaining structure for debris flow disaster remediation of claim 4, wherein: each group of deep-buried anchor rod group (9) comprises four deep-buried anchor rods (10), four connecting holes (11) are formed in each group of connecting steel plate groups (8), and the upper ends of the four deep-buried anchor rods (10) are fixedly sleeved in the connecting holes (11) through corresponding fixing nuts (12).
6. The retaining structure for debris flow disaster remediation of claim 5, wherein: each group of the connecting steel plate groups (8) comprises an anchor plate (13) and a connecting plate (14), the connecting plate (14) is fixedly arranged on the anchor plate (13), the connecting holes (11) are formed in the anchor plate (13), and the lower end of the debris flow retaining system (2) is detachably connected with the connecting plates (14) of the connecting steel plate groups (8).
7. The retaining structure for debris flow disaster remediation of claim 6, wherein: the debris flow blocking system (2) comprises one or more groups of steel debris flow blocking pieces (15), and the steel debris flow blocking pieces (15) or all groups of steel debris flow blocking pieces (15) which are detachably connected into a whole are fixedly connected with the connecting plate (14) through the lower ends of the steel debris flow blocking pieces (15).
8. The retaining structure for debris flow disaster remediation of claim 7, wherein: the projection of the steel debris flow blocking piece group (15) in the vertical section of the steel debris flow blocking piece group is a right-angle trapezoid which is gradually enlarged downwards.
9. The retaining structure for debris flow disaster remediation of claim 8, wherein: vertical extension sections (16) extending upwards and downwards are respectively arranged at the upper end and the lower end of the steel debris flow blocking piece group (15) in the shape of a right trapezoid.
CN202120731428.9U 2021-04-09 2021-04-09 A block structure for mud-rock flow disaster is administered Active CN214737838U (en)

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CN202120731428.9U CN214737838U (en) 2021-04-09 2021-04-09 A block structure for mud-rock flow disaster is administered

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Application Number Priority Date Filing Date Title
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