阅读说明：本技术 旋流井井壁外模板临时锁紧方法 (Temporary locking method for outer template of rotational flow well wall ) 是由 王代发 张祚福 于 2021-08-26 设计创作，主要内容包括：本发明涉及冶金建设领域,具体是一种旋流井井壁外模板临时锁紧方法。采用钢丝绳配合倒链将旋流井外模板临时围起来,通过倒链逐渐将钢丝绳收紧,外模板逐渐与旋流井外壁紧贴形成圆形,当调整到与旋流井直径吻合时,穿过对拉杆螺杆并设置水平环向钢筋,并通过山型卡锁紧固定,本发明便于井壁外模板的快速就位,能够对井壁外模板进行固定和微调,加快施工速度,保证模板的整体外观质量,起到双重加固模板作用,安全系数提高。(The invention relates to the field of metallurgical construction, in particular to a temporary locking method for an external template of a well wall of a cyclone well. The steel wire rope is matched with the inverted chain to temporarily enclose the outer template of the rotational flow well, the steel wire rope is gradually tightened through the inverted chain, the outer template is gradually attached to the outer wall of the rotational flow well to form a circle, and when the outer template is adjusted to be matched with the diameter of the rotational flow well, the outer template penetrates through the tie rod screw and is provided with the horizontal annular steel bar and is fixedly fastened through the mountain-shaped clamp.)

1. A temporary locking method for an external template of a rotational flow well wall is characterized by comprising the following steps: the method comprises the following steps:

the first step is as follows: binding well wall reinforcing steel bars, namely binding vertical reinforcing steel bars, then binding annular reinforcing steel bars on the vertical reinforcing steel bars, and arranging an inner layer and an outer layer of the well wall reinforcing steel bars;

the second step is that: hoisting and sealing the templates, respectively hoisting the two spliced well wall templates to the inner side and the outer side of the well wall reinforcing steel bars, and respectively serving as an inner template and an outer template of the cyclone well;

the third step: the external template is temporarily fixed and locked, the vertical back edges are uniformly fixed on the outer side of the well wall template, the steel wire ropes are encircled on the vertical back edges for fixing the external template, each template forming the external template is provided with two horizontal steel wire ropes, the steel wire ropes are connected with a chain block, the steel wire ropes are controlled by the chain block to temporarily lock and finely adjust the external template, vertical interfaces between the templates are gradually attached and closed, and the external template is gradually folded from a regular polygon to be gradually changed into a circle;

the fourth step: arranging a counter-pull bolt rod, and when the steel wire rope is temporarily locked and the outer template is changed into a circle matched with the diameter of the cyclone well, penetrating the counter-pull bolt rod through a hole of a well wall template drilled in advance, and penetrating the inner template and the outer template;

the fifth step: reinforcing a formwork support system, wherein an upper horizontal circumferential reinforcing steel bar and a lower horizontal circumferential reinforcing steel bar are arranged on a vertical back ridge outside each formwork, each horizontal circumferential reinforcing steel bar is arranged in two rows, and a mountain-shaped clamp is fixed at two ends of a split bolt rod and clamped on the horizontal circumferential reinforcing steel bars;

and a sixth step: locking the steel wire rope again, and checking the steel wire rope again after all counter-pull bolt rods are arranged and tightened and reinforced, so that the horizontal circumferential steel bars, the counter-pull bolt rods and the steel wire rope are stressed together, and the well wall template is ensured to be stable;

the seventh step: and (5) pouring concrete.

Technical Field

The invention relates to the field of metallurgical construction, in particular to a temporary locking method for an external template of a well wall of a cyclone well.

Background

In the field of metallurgical construction, a cyclone well is an important building and is indispensable as a steel rolling and steelmaking public auxiliary system, almost all the conventional cyclone wells are of a circular reinforced concrete structure, the diameter is 18-35 meters, the wall thickness of the well is 1-1.5 meters, the depth is 20-35 meters, the method belongs to the key point and difficulty in construction, common construction methods comprise main modes such as large excavation, reverse construction method and open caisson according to soil conditions, underground water level and peripheral working conditions, the large excavation or open caisson mode needs to carry out closed reinforcement on a well wall outer template, steel bars are commonly adopted for the cyclone wells as inner and outer keel stirrups, vertical back ridges are fixed outside the cyclone well templates, equidistant horizontal annular steel bars are arranged on the vertical back ridges, the well wall templates are reinforced and locked by using pull bolt rods and mountain-shaped clamps, however, in the closed process of the well wall outer template, the pouring of each section of the cyclone wells is about 6-8 meters high on average, because the template self has certain intensity, lack the support of external force and hardly assemble into circularly with every template, simultaneously because the unable interim locking of closed template is difficult to accomplish the fine setting of template.

Disclosure of Invention

The invention aims to solve the problems, and provides a temporary locking method for the rotational flow well wall outer template, which can finely adjust and reinforce the well wall outer template and accelerate the construction speed.

The invention solves the problems and adopts the technical scheme that:

a temporary locking method for an external template of a rotational flow well wall comprises the following steps:

the first step is as follows: binding well wall reinforcing steel bars, namely binding vertical reinforcing steel bars, then binding annular reinforcing steel bars on the vertical reinforcing steel bars, and arranging an inner layer and an outer layer of the well wall reinforcing steel bars;

the second step is that: hoisting and sealing the templates, respectively hoisting the two spliced well wall templates to the inner side and the outer side of the well wall reinforcing steel bars, and respectively serving as an inner template and an outer template of the cyclone well;

the third step: the external template is temporarily fixed and locked, the vertical back edges are uniformly fixed outside the well wall template, the steel wire ropes are encircled on the vertical back edges for fixing the external template, each template forming the external template is provided with two horizontal steel wire ropes, the steel wire ropes are connected with a chain block, the steel wire ropes are controlled by the chain block to temporarily lock and finely adjust the external template, vertical interfaces between the templates are gradually attached and closed, and the external template is gradually folded from a regular polygon to be gradually changed into a circle;

the fourth step: arranging a counter-pull bolt rod, and when the steel wire rope is temporarily locked and the outer template is changed into a circle matched with the diameter of the cyclone well, penetrating the counter-pull bolt rod through a hole of a well wall template drilled in advance, and penetrating the inner template and the outer template;

the fifth step: reinforcing a formwork support system, wherein an upper horizontal circumferential reinforcing steel bar and a lower horizontal circumferential reinforcing steel bar are arranged on a vertical back ridge outside each formwork, each horizontal circumferential reinforcing steel bar is arranged in two rows, and a mountain-shaped clamp is fixed at two ends of a split bolt rod and clamped on the horizontal circumferential reinforcing steel bars;

and a sixth step: locking the steel wire rope again, and checking the steel wire rope again after all counter-pull bolt rods are arranged and tightened and reinforced, so that the horizontal circumferential steel bars, the counter-pull bolt rods and the steel wire rope are stressed together, and the well wall template is ensured to be stable;

the seventh step: and (5) pouring concrete.

Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:

the invention can realize the rapid positioning of the well wall external template, can fix and finely adjust the well wall external template, accelerates the construction speed, ensures the overall appearance quality of the template, plays a role of double template reinforcement and improves the safety factor.

Drawings

FIG. 1 is a schematic front view of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is a schematic view of a cross-sectional view taken along the direction B-B in FIG. 1;

labeled as: an outer template 1; a wire rope 2; chain block 3; a vertical back edge 4; horizontal circumferential reinforcing steel bars 5, split bolt rods 6 and transverse reinforcing steel bars 7; vertical reinforcing steel bars 8; an inner template 9.

Detailed Description

The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.

Referring to fig. 1-3, a temporary locking method for an external template of a wall of a cyclone well comprises the following steps:

the first step is as follows: and (3) binding well wall reinforcing steel bars, namely binding vertical reinforcing steel bars 8 firstly, then binding circumferential reinforcing steel bars 7 on the vertical reinforcing steel bars 8, wherein the bound well wall reinforcing steel bars are arranged into an inner layer and an outer layer.

The second step is that: and (3) hoisting and sealing the templates, and hoisting the two spliced well wall templates to the inner side and the outer side of the well wall reinforcing steel bars respectively to be used as an inner template 9 and an outer template 1 of the cyclone well respectively.

The third step: the template is fixed and locked temporarily, the stupefied 4 even fixing of vertical back of the body is outside the wall of a well template, wire rope 2 encircles on the stupefied 4 of vertical back of the body that is used for fixed exterior sheathing 1, all there is the horizontally wire rope process of twice on every template that constitutes exterior sheathing 1, wire rope 2 links to each other with chain block 3, through chain block 3 control wire rope 2 temporary locking and fine setting exterior sheathing 1, vertical interface between the template is hugged closely gradually and is drawn close together, exterior sheathing 1 slowly draws in gradually from regular polygon and gradually becomes circularly.

The fourth step: arranging a counter-pull bolt rod 6, when the steel wire rope 2 is temporarily locked and the outer template 1 becomes a circle matched with the diameter of the cyclone well, penetrating the counter-pull bolt rod 6 through a hole of a well wall template drilled in advance, and penetrating the inner template 9 and the outer template 1; the distance between the holes of the tie bolt rod 6 is 400-500 mm.

The fifth step: reinforcing a formwork support system, wherein an upper horizontal circumferential reinforcing steel bar 5 and a lower horizontal circumferential reinforcing steel bar 5 are arranged on a vertical back ridge 4 outside each formwork, each horizontal circumferential reinforcing steel bar 5 is arranged in two rows, and a mountain-shaped clamp is fixed at two ends of a split bolt rod 6 and clamped on the horizontal circumferential reinforcing steel bars 5; the diameter of the horizontal circumferential steel bar 5 is more than or equal to 18 mm.

And a sixth step: and locking the steel wire rope 2 again, and after all the split bolt rods 6 are arranged and tightened and reinforced, checking the steel wire rope 2 again to ensure that the horizontal annular steel bars 5, the split bolt rods 6 and the steel wire rope 2 are stressed together, so that the well wall template is ensured to be stable.

The seventh step: and (5) pouring concrete.

The invention can realize the rapid positioning of the well wall external template, can fix and finely adjust the well wall external template, accelerates the construction speed, ensures the overall appearance quality of the template, plays a role of double template reinforcement and improves the safety factor.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.