阅读说明：本技术 一种碾压混凝土筑坝跨廊道快速施工构造及其施工方法 (Roller compacted concrete damming corridor-crossing rapid construction structure and construction method thereof ) 是由 向前 张莹 熊涛 潘伟 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种碾压混凝土筑坝跨廊道快速施工构造及其施工方法,包括钢栈桥、混凝土预制块A、混凝土预制块B,所述混凝土预制块A放置在廊道两侧,混凝土预制块A靠近廊道一侧的两端设有凸块,且凸块侧面紧贴在廊道外壁上,所述混凝土预制块B放置在仓外混凝土预制块A一侧,钢栈桥放置在混凝土预制块A和混凝土预制块B上部,且钢栈桥从廊道一侧横跨到廊道另一侧。本发明通过使用混凝土预制块A、混凝土预制块B、钢栈桥,可实现碾压混凝土筑坝跨廊道快速施工,且可以灵活的根据浇筑高度抬高钢栈桥,不受地形条件制约,安装及拆卸操作方便,节约施工成本并缩短工期。(The invention discloses a roller compacted concrete damming corridor-crossing rapid construction structure and a construction method thereof, wherein the roller compacted concrete damming corridor-crossing rapid construction structure comprises a steel trestle, concrete precast blocks A and concrete precast blocks B, the concrete precast blocks A are arranged on two sides of a corridor, two ends of one side, close to the corridor, of the concrete precast blocks A are provided with convex blocks, the side surfaces of the convex blocks are tightly attached to the outer wall of the corridor, the concrete precast blocks B are arranged on one side of the concrete precast blocks A outside a warehouse, the steel trestle is arranged on the upper portions of the concrete precast blocks A and the concrete precast blocks B, and the steel trestle spans from one side of the corridor to the other side of the corridor. According to the invention, the concrete precast block A, the concrete precast block B and the steel trestle are used, so that the roller compacted concrete damming cross-gallery rapid construction can be realized, the steel trestle can be flexibly raised according to the pouring height, the steel trestle is not limited by terrain conditions, the mounting and dismounting operations are convenient, the construction cost is saved, and the construction period is shortened.)

1. The utility model provides a gallery quick construction structure is striden in roller compacted concrete damming which characterized in that: the concrete prefabricated part comprises a steel trestle (2), a concrete prefabricated part A (3) and a concrete prefabricated part B (4), wherein the concrete prefabricated part A (3) is placed on two sides of a gallery (1), two ends, close to one side of the gallery (1), of the concrete prefabricated part A (3) are provided with lugs (5), and the side faces of the lugs (5) are tightly attached to the outer wall of the gallery (1); concrete prefabricated section B (4) are placed in outer storehouse concrete prefabricated section A (3) one side, and steel trestle (2) are placed on concrete prefabricated section A (3) and concrete prefabricated section B (4) upper portion, and steel trestle (2) span corridor (1) opposite side from corridor (1) one side.

2. A roller compacted concrete damming corridor quick construction structure according to claim 1, wherein: the concrete precast block A (3) upper portion is equipped with fixed orifices (6), and concrete precast block A (3) lower part is embedded to have fixed steel pipe (7), and the external diameter of fixed steel pipe (7) is the same with the internal diameter of fixed orifices (6).

3. A roller compacted concrete damming corridor quick construction structure according to claim 2, wherein: concrete prefabricated section A (3) are folded from top to bottom, and concrete prefabricated section A (3) are connected with each other through fixed orifices (6) and fixed steel pipes (7).

4. A roller compacted concrete damming corridor quick construction structure according to claim 1, wherein: the heights of the two sides of the gallery (1) are different, and one side, on which the concrete precast block B (4) is placed, is higher than the other side.

5. A roller compacted concrete damming corridor quick construction structure according to claim 1, wherein: the upper end face of the steel trestle (2) is an inclined plane, and the upper part of the inclined plane is flush with the upper end face of the concrete precast block B (4).

6. A roller compacted concrete damming corridor quick construction structure according to claim 1, wherein: the steel trestle (2) comprises a frame and reinforcing steel bars, the side face of the frame is triangular, and the reinforcing steel bars are welded on the upper portion of the frame at intervals.

7. A roller compacted concrete damming corridor quick construction structure according to claim 1, wherein: the concrete precast block A (3) and the concrete precast block B (4) are made of concrete, and steel reinforcement frameworks are arranged in the concrete precast block A (3) and the concrete precast block B (4).

8. A roller compacted concrete damming corridor quick construction structure as claimed in claim 5, wherein: the slope of the inclined plane is 15% to 18%.

9. A method of constructing a roller compacted concrete damming cross-corridor quick construction according to any one of claims 1 to 8, comprising the steps of:

s1, prefabricating a concrete prefabricated block A and a concrete prefabricated block B;

s2, paving the concrete precast block A and the concrete precast block B;

s3, paving a steel trestle and paving a travelling crane channel;

and S4, adding the concrete precast block A and the concrete precast block B along with the pouring height.

10. The construction method of the roller compacted concrete damming corridor quick construction structure according to claim 9, wherein the construction method comprises the following steps: in step S4, after the steel trestle is lifted, a new concrete precast block a is placed on the top of the existing concrete precast block a, so that the concrete precast block a on the top is flush with the ground, new concrete precast blocks B are placed on the top and the side of the concrete precast block B, and then the steel trestle is laid on the top of the concrete precast blocks a and the top of the concrete precast blocks B.

Technical Field

The invention belongs to the field of engineering construction, and particularly relates to a roller compacted concrete damming corridor-crossing rapid construction structure and a construction method thereof.

Background

The roller compacted concrete dam has simple construction process, less cement and template consumption, pouring and rolling of a through-warehouse thin layer and large construction working surface; the thin layers can be staggered and continuously lifted without intermittent maintenance; the seam and the block are reduced, and the continuous construction is facilitated; the temperature control measures and the construction diversion facilities are simplified. Therefore, the roller compacted concrete dam has high construction strength, high speed, short construction period and low engineering cost. The conventional design of the roller compacted concrete dam can be provided with 2-3 rows of longitudinal galleries and transverse traffic galleries, namely a curtain grouting gallery, a first drainage gallery, a second drainage gallery and the like, at the basic part of the dam, and the method generally adopts the following method when the cross-gallery construction is needed in the using process: the method for constructing the sand bag road cushion comprises the steps of conveying by a belt conveyor, warehousing by a cable machine and a suspension tank, and paving by the sand bag, wherein the structure is complex, the use cost is high, the warehousing by the cable machine and the suspension tank is easily limited by terrain, so that the cable machine cannot be realized, the use scene is easily limited, the method for constructing the sand bag road cushion comprises the steps of piling roads crossing the gallery at two ends of the gallery by the sand bags, the influence degree of the roads crossing the gallery is small due to the terrain, the use cost is low, secondary slag removal is needed after the use, the site construction is influenced, and therefore the quick construction structure and the construction method for constructing the dam-crossing gallery by the roller compacted concrete are needed, the quick construction of the roller compacted concrete crossing the gallery is realized, the limitation by the terrain is avoided, and the construction cost.

Disclosure of Invention

In order to solve the technical problems, the invention provides a roller compacted concrete damming corridor-crossing rapid construction structure and a construction method thereof, which can solve the problem of inconvenient use in the prior art.

The invention is realized by the following technical scheme.

The invention provides a roller compacted concrete damming corridor-crossing rapid construction structure which comprises a steel trestle, concrete precast blocks A and concrete precast blocks B, wherein the concrete precast blocks A are arranged on two sides of a corridor, two ends of one side, close to the corridor, of each concrete precast block A are provided with convex blocks, the side faces of the convex blocks are tightly attached to the outer wall of the corridor, the concrete precast blocks B are arranged on one side of the concrete precast blocks A outside a warehouse, the steel trestle is arranged on the upper portions of the concrete precast blocks A and the concrete precast blocks B, and the steel trestle spans from one side of the corridor to the other side of the corridor.

The concrete precast block A upper portion is equipped with the fixed orifices, and concrete precast block A lower part is embedded to have fixed steel pipe, and the external diameter of fixed steel pipe is the same with the internal diameter of fixed orifices.

The concrete precast blocks A are stacked up and down and connected with each other through the fixing holes and the fixing steel pipes.

The heights of the two sides of the gallery are different, and one side, on which the concrete precast block B is placed, is higher than the other side.

The upper end face of the steel trestle is an inclined plane, and the upper part of the inclined plane is flush with the upper end face of the concrete precast block B.

The steel trestle comprises a frame and reinforcing steel bars, the side face of the frame is triangular, and the reinforcing steel bars are welded on the upper portion of the frame at intervals.

The concrete precast block A and the concrete precast block B are made of concrete, and steel reinforcement frameworks are arranged in the concrete precast block A and the concrete precast block B.

The slope of the inclined plane is 15% to 18%.

The construction method for the roller compacted concrete damming corridor-crossing rapid construction structure is characterized by comprising the following steps of:

s1, prefabricating a concrete prefabricated block A and a concrete prefabricated block B;

s2, paving the concrete precast block A and the concrete precast block B;

s3, paving a steel trestle and paving a travelling crane channel;

and S4, adding the concrete precast block A and the concrete precast block B along with the pouring height.

In step S4, after the steel trestle is lifted, a new concrete precast block a is placed on the top of the existing concrete precast block a, so that the concrete precast block a on the top is flush with the ground, new concrete precast blocks B are placed on the top and the side of the concrete precast block B, and then the steel trestle is laid on the top of the concrete precast blocks a and the top of the concrete precast blocks B.

The invention has the beneficial effects that: through using concrete prefabricated section A, concrete prefabricated section B, steel trestle, can realize roller compacted concrete and build dam and stride corridor quick construction, and can be nimble according to pouring highly raise the steel trestle, do not receive the restriction of topography condition, installation and dismantlement convenient operation practice thrift construction cost and reduction of erection time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a concrete precast block A;

FIG. 3 is a schematic structural view of a concrete precast block B;

in the figure: 1-gallery, 2-steel trestle, 3-concrete precast block A, 4-concrete precast block B, 5-lug, 6-fixing hole, 7-fixing steel pipe.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1, 2 and 3, a roller compacted concrete damming corridor-crossing rapid construction structure comprises a steel trestle 2, a concrete precast block A3 and a concrete precast block B4, wherein the concrete precast block A3 is placed on two sides of a corridor 1, two ends of one side, close to the corridor 1, of the concrete precast block A3 are provided with lugs 5, the side faces of the lugs 5 are tightly attached to the outer wall of the corridor 1, the concrete precast block B4 is placed on one side of the concrete precast block A3 outside a warehouse, the steel trestle 2 is placed on the upper portions of the concrete precast block A3 and the concrete precast block B4, and the steel trestle 2 crosses the other side of the corridor 1 from one side of the corridor 1.

When a corridor-crossing road needs to be paved, a gap is reserved on a corridor 1, the width of a concrete precast block A and the width of a concrete precast block B are 20cm to 30cm larger than that of the gap of the corridor 1, the concrete precast blocks A3 are placed on two sides of the corridor 1, a bump 5 on the concrete precast block A3 is tightly attached to the outer wall of the corridor 1, a gap is reserved between one side of the concrete precast block A3 and the gap of the corridor 1, so that the concrete precast block A3 can hit the gap of the corridor 1 to damage a base at the lower part of the gap of the corridor 1, after the concrete precast block A3 is paved, the concrete precast block B4 is placed on the side of the concrete precast block A3, then a steel trestle 2 is paved, a step is formed through the concrete precast block B4, the steel trestle 2 can be gradually lifted and finally is flush with the upper part of the concrete block A3, a vehicle is driven to pass between the concrete precast blocks A3, and the construction of the corridor-crossing structure is completed, because the concrete is required to be continuously poured on one side of the gallery 1, the ground on one side of the gallery 1 can be continuously raised, the structure of the cross gallery needs to be adjusted along with the raising of the ground on one side of the gallery 1, when the steel trestle 2 is lifted away, a new concrete precast block A3 is placed on the upper portion of the existing concrete precast block A3, the concrete precast block A3 on the top is flush with the ground, meanwhile, a new concrete precast block B4 is placed on the upper portion and the side face of the concrete precast block B4, the concrete precast block B4 forms a new step and can be gradually lifted to the position where the concrete precast block A3 is flush, meanwhile, the concrete precast block B4 is abutted against one side of the concrete precast block A3, the concrete precast block A3 is prevented from collapsing, and then the steel trestle 2 is laid on the upper portions of the concrete precast block A3 and the concrete precast block B4.

Concrete precast block A3 upper portion is equipped with fixed orifices 6, and concrete precast block A3 lower part is embedded to have fixed steel pipe 7, and the external diameter of fixed steel pipe 7 is the same with the internal diameter of fixed orifices 6, is convenient for through fixed orifices 6 and fixed steel pipe 7 interconnect between the concrete precast block A3, can agree with firmly, avoids concrete precast block A3 to collapse.

Concrete prefabricated section A3 stacks from top to bottom, through fixed orifices 6 and fixed steel pipe 7 interconnect between the concrete prefabricated section A3, stacks from top to bottom through concrete prefabricated section A3, follows ground and raises gradually, is convenient for stride the corridor structure and raise along with raising of ground.

The height difference of corridor 1 both sides, the one side of placing concrete prefabricated section B4 is higher than the other side, need continuous concreting when roller compacted concrete damming construction for the ground of corridor 1 one side is continuous to be raised, is called in the trade as the storehouse, and corridor 1 opposite side is for being the storehouse outside.

The inclined plane is personally submitted to steel trestle 2 upper end, and the upper portion on inclined plane flushes with concrete prefabricated section B4's up end, and steel trestle 2 can interconnect after placing concrete prefabricated section B4 upper portion, forms a road of striding the corridor, and the vehicle of being convenient for passes through.

Steel trestle 2 includes frame and reinforcing bar, and the frame side is triangle-shaped, and the reinforcing bar interval welding forms by the rail welding on frame upper portion, and the frame wholly is the wedge structure, makes steel trestle 2 through the steel construction welding, can realize the modularization production and overlap joint that can be quick when using, shortens construction cycle.

Concrete prefabricated section A3 and concrete prefabricated section B4 are made of concrete, are equipped with steel reinforcement framework in concrete prefabricated section A3 and concrete prefabricated section B4, through prefabricated concrete prefabricated section A3 and concrete prefabricated section B4, can shorten construction cycle, and concrete prefabricated section A3 and concrete prefabricated section B4 are modular structure, can the overlap joint, and use repeatedly, reduce use cost.

The slope of the inclined plane is 15% -18%, and the vehicle can conveniently pass through the inclined plane.

The construction method for the roller compacted concrete damming corridor-crossing rapid construction structure is characterized by comprising the following steps of:

s1, prefabricating the concrete precast block A and the concrete precast block B, and prefabricating in advance through a casting mold to shorten the construction period;

s2, paving the concrete precast block A and the concrete precast block B, and lifting the steel trestle step by step through the concrete precast block A and the concrete precast block B so as to form a corridor-crossing road;

s3, paving a steel trestle and paving a travelling channel to form a corridor-crossing road for vehicles to pass through;

s4, along with the pouring height, the concrete precast block A and the concrete precast block B are added, concrete needs to be poured continuously when the roller compacted concrete damming construction is carried out, so that the ground on one side of the corridor 1 is lifted continuously, and the concrete precast block A and the concrete precast block B need to be added according to the lifting condition of the ground.

In step S4, after the steel trestle is lifted, a new concrete precast block a is placed on the top of the existing concrete precast block a, so that the concrete precast block a on the top is flush with the ground, new concrete precast blocks B are placed on the top and the side of the concrete precast block B, and then the steel trestle is laid on the top of the concrete precast blocks a and the top of the concrete precast blocks B.