CN110965577B - Construction method of chain lock type ecological block retaining wall - Google Patents

Construction method of chain lock type ecological block retaining wall Download PDF

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Publication number
CN110965577B
CN110965577B CN201911351661.8A CN201911351661A CN110965577B CN 110965577 B CN110965577 B CN 110965577B CN 201911351661 A CN201911351661 A CN 201911351661A CN 110965577 B CN110965577 B CN 110965577B
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retaining wall
chain
layer
lock type
type ecological
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CN110965577A (en
Inventor
肖剑
张帆
张萍
陈飞野
任鹏
庞瑞
王李平
蒋爱辞
胡丽香
隋海宾
郝枫楠
戴雪
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Yellow River Engineering Consulting Co Ltd
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Yellow River Engineering Consulting Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/0258—Retaining or protecting walls characterised by constructional features
    • E02D29/0266—Retaining or protecting walls characterised by constructional features made up of preformed elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Retaining Walls (AREA)

Abstract

The invention discloses a construction method of a chain lock type ecological block retaining wall, which comprises the following steps of 1, excavating on a side slope according to a designed excavation line, and performing hole site lofting on an anchor rod to be anchored on an excavation surface; 2. constructing an anchor rod; 3. pouring a retaining wall foundation; 4. placing a first layer of chain blocks on the retaining wall foundation, wherein the distance between every two adjacent chain blocks is equal to the width of one block, a through hole is formed in the inclined plane of each chain block and is aligned with the axis of the anchor rod, and then placing a first layer of blocks between every two adjacent chain blocks to form a first layer of retaining wall; 5. backfilling a first layer of graded broken stones behind the first layer of retaining wall, and then covering and filling planting soil with grass seeds or flower seeds in the through grooves of the first layer of building blocks to form a first layer of chain-lock type ecological retaining wall; 6. repeating the steps 4 and 5 on the first layer of chain-lock type ecological retaining wall to form a second layer of chain-lock type ecological retaining wall; 7. and repeating the steps of 4-6 until the whole chain lock type ecological retaining wall is constructed. The invention is not limited by the excavation space and has strong capability of adapting to geological conditions.

Description

Construction method of chain lock type ecological block retaining wall
Technical Field
The invention relates to a side slope protection retaining wall, in particular to a construction method of a chain lock type ecological block retaining wall.
Background
The existing side slope protection retaining wall has more forms, such as a gravity retaining wall, a counterfort retaining wall, a cantilever retaining wall and the like. The appearance of the retaining wall is hard and lifelike and is lack of vitality and aesthetic feeling. In recent years, self-embedded ecological block retaining walls appear, the problem of surface protection greening is solved, and the ecological functions of the retaining walls are greatly improved. However, neither the conventional retaining wall nor the self-embedded ecological block retaining wall can solve the problem of the limit of the excavated space. The retaining wall is constructed by excavating the soil behind the wall and backfilling the soil in layers, and if the excavation space is limited, the retaining wall cannot be constructed; if the anchor rod and the soil nail are adopted for supporting, the ecological landscape function is difficult to be considered.
Disclosure of Invention
The invention aims to provide a construction method of a chain lock type ecological block retaining wall, which realizes the functions of reinforcing a steep side slope and giving consideration to ecological landscape and is not limited by an excavation space.
In order to achieve the purpose, the invention adopts the following technical scheme:
the chain lock type ecological block retaining wall is formed by overlapping a chain block made of reinforced concrete material and a block made of sand-free concrete material; the chain block comprises a right-angle trapezoid body with two opposite side surfaces in a right-angle trapezoid shape, the two opposite side surfaces of the right-angle trapezoid body are respectively and symmetrically provided with a first vertical column body, the bottom surface of the first vertical column body is flush with the bottom surface of the right-angle trapezoid body, the top surface of the first vertical column body is lower than the top surface of the right-angle trapezoid body, vertical holes for embedding reinforcing steel bars or glass fiber bars are formed in the top surface and the bottom surface of the first vertical column body in a penetrating mode, and a through hole for penetrating an anchor rod is formed; the building block is a rectangular body, two opposite side surfaces of the rectangular body are respectively symmetrically provided with a vertical groove and a second vertical column body, the top surface of the second vertical column body is flush with the top surface of the rectangular body, the bottom surface of the second vertical column body is higher than the bottom surface of the rectangular body, and a through groove for covering and filling planting soil is formed by penetrating through the top surface and the bottom surface of the rectangular body; through holes for embedding steel bars or glass fiber rods are respectively formed downwards in the positions, located on the two sides of the vertical groove, of the top surface of the rectangular body and at the positions of the second vertical column bodies; when the chain lock type ecological block retaining wall is constructed, when an excavation space is reserved for a retaining wall rear side slope, the construction method is the same as that of the existing self-embedding type block retaining wall, and the geogrid is laid behind the wall; when the excavation space of the slope behind the retaining wall is limited, the method comprises the following steps: the method comprises the following steps:
step 1, firstly, excavating on a side slope according to a designed excavation line, and then performing hole site lofting on an anchor rod or a soil nail to be anchored on an excavation surface;
step 2, carrying out anchor rod construction on the excavation surface, reserving the exposed length of the anchor rod, and calculating the length of the anchor rod according to the foundation pit supporting technical specification;
step 3, after the anchor rod construction is finished, pouring a retaining wall foundation;
step 4, placing a first layer of chain blocks on the retaining wall foundation, placing the inclined planes of the chain blocks outwards, wherein the spacing distance between every two adjacent chain blocks is equal to the width of one building block, the through holes on the inclined planes of the chain blocks are aligned with the axis of the anchor rod, then placing the first layer of building blocks between every two adjacent chain blocks, overlapping a second upright post on the building block and a first upright post on the chain block up and down, embedding reinforcing steel bars or glass fiber rods into through holes on the second upright post and vertical holes on the first upright post for fixation, and penetrating the through holes on the inclined planes of the chain blocks into the anchor rods for anchoring to form a first layer of retaining wall;
step 5, backfilling a first layer of graded broken stones after the first layer of retaining wall, and then covering and filling planting soil with grass seeds or flower seeds in the through grooves of the first layer of building blocks to form a first layer of chain-lock type ecological retaining wall;
step 6, repeating the step 4 and the step 5 on the first layer of chain-locked ecological retaining wall to form a second layer of chain-locked ecological retaining wall; the building blocks of the first layer chain lock type ecological retaining wall and the second layer chain lock type ecological retaining wall are arranged in a vertically staggered mode; through holes on the adjacent upper and lower layers of chain-lock type ecological retaining wall building blocks are correspondingly embedded with steel bars or glass fiber rods for fixation;
and 7, repeating the steps 4 to 6 until the whole chain-lock type ecological retaining wall is constructed.
The right-angle trapezoidal body and the rectangular body are equal in height, and the sum of the heights of the first vertical column body and the second vertical column body is equal to the height of the rectangular body.
The through hole arranged on the inclined plane of the right-angle trapezoid body is an inclined hole which is inclined downwards.
The advantages of the chain lock type ecological block retaining wall are embodied in the following aspects:
1. the chain lock type ecological block retaining wall has the ecological landscape function of the existing ecological block retaining wall, and the sand-free concrete block has the autonomous drainage function; the chain lock type ecological block retaining wall can adapt to side slope protection with larger plane corner by adjusting the corner, as shown in figures 12-13; meanwhile, the vertical surface can be made as shown in fig. 7, or the inclined surface can be made as shown in fig. 9-11 by adjusting the overlapping holes of the through holes, so that the terrain adaptability is strong. No matter the soil layer behind the retaining wall is a rock stratum or a soil layer, the chain lock type ecological block retaining wall can be applied, and the capacity of adapting to geological conditions is strong.
2. Chain lock formula ecological block barricade does not receive the excavation space restriction. When the space is not limited, geogrids can be laid behind the wall and backfilled layer by layer, and finally the geogrids are connected with the wall body into a whole; when the space is limited, anchor rods or soil nails of the side slope can be supported, and finally the anchor rods or the soil nails are connected with the wall body into a whole, so that the construction method is flexible.
3. When the chain lock type ecological block retaining wall is supported by an anchor rod or a soil nail, the earth excavation amount can be greatly reduced in the high slope protection, and the construction speed is higher; and the side slope is supported in advance, so that the stability of the side slope is ensured, and the construction is safer.
Drawings
Fig. 1 is a schematic perspective view of a chain block according to the present invention.
Fig. 2 is a schematic perspective view of the block of the present invention.
Fig. 3 is a front view of fig. 1.
Fig. 4 is a left side view of fig. 3.
Fig. 5 is a top view of fig. 3.
Fig. 6 is a top view of fig. 2.
Fig. 7 is a schematic view of the overlapping structure of the chain block and the block according to the present invention (vertical support).
Fig. 8 is a schematic view of the chain-lock ecological block retaining wall cross-section structure (vertical support) implemented by the invention.
Fig. 9 is a schematic view of the chain-lock ecological block retaining wall section structure (inclined support) implemented by the invention.
Fig. 10 is a schematic perspective view of the overlapping of the chain blocks and the building blocks (inclined support) according to the invention.
Fig. 11 is a schematic top view of the structure of fig. 10.
Fig. 12 is a schematic perspective view of the chain-lock ecological block retaining wall with a plane corner slope.
Fig. 13 is a schematic top view of the structure of fig. 12.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 7, the construction method of the chain lock type ecological block retaining wall of the invention is manufactured by overlapping a chain block 1 made of reinforced concrete material and a block 2 made of sand-free concrete material.
Chain piece 1 includes that relative both sides face is right trapezoid's right angle trapezoidal body 1.1, and the relative both sides face of right angle trapezoidal body 1.1 symmetry respectively is provided with first stand column body 1.2, and the bottom surface of first stand column body 1.2 flushes with the bottom surface of right angle trapezoidal body 1.1 and the top surface extends to the middle part of right angle trapezoidal body 1.1, runs through top surface and the bottom surface of first stand column body 1.2 and offers the perpendicular hole 1.3 that is used for embedding reinforcing bar or glass fiber stick, and the perforation 1.5 that is used for penetrating the stock is offered to the downward sloping on the inclined plane 1.4 of right angle trapezoidal body 1.1.
The building block 2 is a rectangular body 2.1, two opposite side surfaces of the rectangular body 2.1 are respectively and symmetrically provided with a second upright column body 2.2 and a vertical groove 2.3, the top surface of the second upright column body 2.2 is flush with the top surface of the rectangular body 2.1, and the bottom surface extends to the middle part of the rectangular body 2.1; the right angle trapezoidal body 1.1 is equal to the rectangular body 2.1 in height, and the sum of the heights of the first upright column body 1.2 and the second upright column body 2.2 is equal to the height of the rectangular body 2.1; through grooves 2.4 for covering and filling planting soil are formed through the top surface and the bottom surface of the rectangular body 2.1; a front side through hole 2.51 and a rear side through hole 2.52 for embedding a steel bar or a glass fiber rod are arranged on the front side and the rear side of the vertical groove 2.3 on the top surface of the rectangular body 2.1; the position of the top surface of the rectangular body 2.1, which is positioned on the second upright column body 2.2, is provided with a through hole 2.53 for embedding a steel bar or a glass fiber rod.
The first upright column body 1.2 and the second upright column body 2.2 can be made into a semi-cylindrical structure, so that the adjustment of the lap joint angle is convenient when the chain block 1 and the building block 2 are combined.
When an excavation space exists on the side slope behind the retaining wall, the construction method is the same as that of the existing self-embedding type block retaining wall, and the geogrid is laid behind the wall.
As shown in fig. 8, when the excavation space of the retaining wall rear slope is limited, the following steps are performed:
step 1, firstly, excavating on a side slope according to a designed excavation line 3, and then performing hole site lofting on an anchor rod 4 (or a soil nail) to be anchored on an excavation surface;
step 2, constructing an anchor rod 4 on the excavation surface, reserving the exposed length of the anchor rod 4, and calculating the length of the anchor rod 4 according to the foundation pit supporting technical specification;
step 3, after the anchor rod 4 is constructed, pouring a retaining wall foundation 5;
step 4, placing a first layer of chain blocks 1 on a retaining wall foundation 5, placing inclined planes 1.4 of the chain blocks 1 outwards, wherein the spacing distance between every two adjacent chain blocks 1 is equal to the width of one building block 2, aligning through holes 1.5 in the inclined planes 1.4 of the chain blocks with the axis of an anchor rod 4, placing the first layer of building blocks 2 between every two adjacent chain blocks 1, overlapping the second upright columns 2.2 on the building blocks 2 and the first upright columns 1.2 on the chain blocks 1 up and down, embedding steel bars 6 or glass fiber rods into through holes 2.53 in the second upright columns 2 and vertical holes 1.3 in the first upright columns 1.2 for fixation, and penetrating the through holes 1.5 in the inclined planes 1.4 of the chain blocks 1 into the anchor rods 4 for anchoring to form a first layer of retaining wall;
step 5, backfilling a first layer of graded broken stones behind the first layer of retaining wall, and then covering and filling planting soil with grass seeds or flower seeds in the first layer of building block through grooves 2.4 to form a first layer of chain lock type ecological retaining wall;
step 6, repeating the fourth step and the fifth step on the first layer of chain-locked ecological retaining wall to form a second layer of chain-locked ecological retaining wall; the building blocks 2 of the first layer chain lock type ecological retaining wall and the second layer chain lock type ecological retaining wall are arranged in a vertically staggered mode; reinforcing steel bars 6 or glass fiber rods are correspondingly embedded in the front side through holes 2.51 and the rear side through holes 2.52 on the chain lock type ecological retaining wall building blocks 2 of the adjacent upper and lower layers (the first and second layers) for fixation;
and 7, repeating the steps 4 to 6 until the whole chain-lock type ecological retaining wall 7 is constructed.
For the chain lock type ecological block retaining wall of the inclined support, as shown in fig. 9-11, rear side through holes 2.52 on adjacent lower layer chain lock type ecological retaining wall blocks 2 are arranged corresponding to front side through holes 2.51 on upper layer chain lock type ecological retaining wall blocks 2, and then steel bars 6 or glass fiber rods are embedded for fixation;
when the chain lock type ecological block retaining wall has a plane corner slope, as shown in fig. 12-13, the chain lock type ecological block retaining wall can be realized by adjusting hole positions of a front side through hole 2.51 and a rear side through hole 2.52 on the block 2.

Claims (3)

1. A construction method of a chain lock type ecological block retaining wall is characterized in that: the chain lock type ecological block retaining wall is formed by overlapping a chain block made of reinforced concrete material and a block made of sand-free concrete material; the chain block comprises a right-angle trapezoid body with two opposite side surfaces in a right-angle trapezoid shape, the two opposite side surfaces of the right-angle trapezoid body are respectively and symmetrically provided with a first vertical column body, the bottom surface of the first vertical column body is flush with the bottom surface of the right-angle trapezoid body, the top surface of the first vertical column body is lower than the top surface of the right-angle trapezoid body, vertical holes for embedding reinforcing steel bars or glass fiber bars are formed in the top surface and the bottom surface of the first vertical column body in a penetrating mode, and a through hole for penetrating an anchor rod is formed; the building block is a rectangular body, two opposite side surfaces of the rectangular body are respectively symmetrically provided with a vertical groove and a second vertical column body, the top surface of the second vertical column body is flush with the top surface of the rectangular body, the bottom surface of the second vertical column body is higher than the bottom surface of the rectangular body, and a through groove for covering and filling planting soil is formed by penetrating through the top surface and the bottom surface of the rectangular body; through holes for embedding steel bars or glass fiber rods are respectively formed downwards in the positions, located on the two sides of the vertical groove, of the top surface of the rectangular body and at the positions of the second vertical column bodies; when the excavation space of the slope behind the retaining wall is limited, the method comprises the following steps: the method comprises the following steps:
step 1, firstly, excavating on a side slope according to a designed excavation line, and then performing hole site lofting on an anchor rod to be anchored on an excavation surface;
step 2, carrying out anchor rod construction on the excavation surface, reserving the exposed length of the anchor rod, and calculating and obtaining the length of the anchor rod according to the foundation pit supporting technical specification;
step 3, after the anchor rod construction is finished, pouring a retaining wall foundation;
step 4, placing a first layer of chain blocks on the retaining wall foundation, placing the inclined planes of the chain blocks outwards, wherein the spacing distance between every two adjacent chain blocks is equal to the width of one building block, the through holes on the inclined planes of the chain blocks are aligned with the axis of the anchor rod, then placing the first layer of building blocks between every two adjacent chain blocks, overlapping a second upright post on the building block and a first upright post on the chain block up and down, embedding reinforcing steel bars or glass fiber rods into through holes on the second upright post and vertical holes on the first upright post for fixation, and penetrating the through holes on the inclined planes of the chain blocks into the anchor rods for anchoring to form a first layer of retaining wall;
step 5, backfilling a first layer of graded broken stones after the first layer of retaining wall, and then covering and filling planting soil with grass seeds or flower seeds in the through grooves of the first layer of building blocks to form a first layer of chain-lock type ecological retaining wall;
step 6, repeating the step 4 and the step 5 on the first layer of chain-locked ecological retaining wall to form a second layer of chain-locked ecological retaining wall; the building blocks of the first layer chain lock type ecological retaining wall and the second layer chain lock type ecological retaining wall are arranged in a vertically staggered mode; through holes on the adjacent upper and lower layers of chain-lock type ecological retaining wall building blocks are correspondingly embedded with steel bars or glass fiber rods for fixation;
and 7, repeating the steps 4 to 6 until the whole chain-lock type ecological retaining wall is constructed.
2. The construction method of the chain-lock type ecological block retaining wall as claimed in claim 1, wherein: the right-angle trapezoidal body and the rectangular body are equal in height, and the sum of the heights of the first vertical column body and the second vertical column body is equal to the height of the rectangular body.
3. The construction method of the chain-lock type ecological block retaining wall according to claim 1 or 2, wherein: the through hole arranged on the inclined plane of the right-angle trapezoid body is an inclined hole which is inclined downwards.
CN201911351661.8A 2019-12-25 2019-12-25 Construction method of chain lock type ecological block retaining wall Active CN110965577B (en)

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Publication number Priority date Publication date Assignee Title
CN114517483A (en) * 2022-03-08 2022-05-20 郄建慧 Concrete member, ecological slope protection and assembling method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100592346B1 (en) * 2005-10-24 2006-06-22 씨엠엔지니어링(주) Construction method of a retaining wall with knuckle joint for road
KR100750702B1 (en) * 2006-05-30 2007-08-22 중앙콘크리트(주) A vegetation block and a method for constructing the building area using
CN102037191A (en) * 2008-05-22 2011-04-27 韩柱Enc(株) A block for building a revetment and a construction method thereof
KR20120110411A (en) * 2011-03-29 2012-10-10 (주)메카모아 The rataining wall
CN207392127U (en) * 2017-09-01 2018-05-22 温岭市卓立水利水电建设有限公司 A kind of bank protection barricade applied to hydraulic engineering
CN209144859U (en) * 2018-09-30 2019-07-23 铜陵陵阳矿业有限责任公司 One kind planting raw retaining wall block from embedded

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100592346B1 (en) * 2005-10-24 2006-06-22 씨엠엔지니어링(주) Construction method of a retaining wall with knuckle joint for road
KR100750702B1 (en) * 2006-05-30 2007-08-22 중앙콘크리트(주) A vegetation block and a method for constructing the building area using
CN102037191A (en) * 2008-05-22 2011-04-27 韩柱Enc(株) A block for building a revetment and a construction method thereof
KR20120110411A (en) * 2011-03-29 2012-10-10 (주)메카모아 The rataining wall
CN207392127U (en) * 2017-09-01 2018-05-22 温岭市卓立水利水电建设有限公司 A kind of bank protection barricade applied to hydraulic engineering
CN209144859U (en) * 2018-09-30 2019-07-23 铜陵陵阳矿业有限责任公司 One kind planting raw retaining wall block from embedded

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