Summary of the invention
For solving the problem, the invention provides a kind of easy disassembly, easy construction, detachable filling counterfort with low cost.
The detachable filling counterfort of one provided by the invention, for filling tunnel, described filling counterfort comprises:
Sandbag stopping, described sandbag stopping comprises:
Multiple sand pocket, described sand pocket is solid and wrap up tailings; The vertical section filling up whole described tunnel vertically stacked by described multiple sand pocket;
First fixed part, the first holddown groove of arc is offered at the top in described tunnel; Described first holddown groove is positioned at the vertical section in described tunnel; Described first fixed part comprises: the first fixed head and the first flap; Described first fixed head stretches into described first holddown groove; By concreting, described first fixed part is fixed in described first holddown groove;
Second fixed part, the second holddown groove is offered in the bottom in described tunnel; Described second holddown groove is positioned at the vertical section in described tunnel; Described second fixed part comprises: the second fixed head and the second flap; Described second fixed head stretches into described second holddown groove; By concreting, described second fixed part is fixed in described second holddown groove;
Supporting component, described supporting component comprises:
Many channel-section steels, described many channel-section steels are vertically arranged side by side; The top of described channel-section steel and bottom are connected end plate respectively; End plate and described first flap at described channel-section steel top are connected; End plate bottom described channel-section steel and described second flap are connected.
As preferably, described sandbag stopping also comprises:
Filling paste, the gap between described multiple sand pocket and described tunnel inwall is filled up by described filling paste;
Two drainage layers, are separately positioned on the two ends of described multiple sand pocket; Described two drainage layers are parallel to the vertical section in described tunnel.
As preferably, described filling counterfort also comprises:
3rd fixed part, the 3rd holddown groove is offered in side, described tunnel; Described 3rd holddown groove is positioned at the vertical section in described tunnel; Described 3rd fixed part comprises: the 3rd fixed head and the 3rd flap; Described 3rd fixed head stretches into described 3rd holddown groove; By concreting, described 3rd fixed part is fixed in described 3rd holddown groove;
4th fixed part, described tunnel opposite side offers the 4th holddown groove; Described 4th holddown groove is positioned at the vertical section in described tunnel; Described 4th fixed part comprises: the 4th fixed head and the 4th flap; Described 4th fixed head stretches into described 4th holddown groove; By concreting, described 4th fixed part is fixed in described 4th holddown groove.
As preferably, described supporting component also comprises:
Multiple stiffener, horizontal interval is arranged; Described multiple stiffener and described many channel-section steels are connected.
As preferably, described filling counterfort also comprises:
Multiple diagonal support, described multiple diagonal support and described supporting component are connected, and the vertical section interval along described tunnel is arranged side by side;
Multiple treatment hole, is arranged on the bottom of described filling barricade, through described sandbag stopping and supporting component.
The detachable filling counterfort of one provided by the invention is by arranging sandbag stopping, first fixed part, second fixed part, supporting component, multiple diagonal support and multiple treatment hole, wherein the first fixed part and the second fixed part are fixed in the holddown groove in tunnel by concreting, a firmly wall frame structure is formed after first fixed part and the second fixed part and supporting component and multiple diagonal support being connected again, this wall frame structure and sandbag stopping form filling counterfort, realize the filling completely in tunnel, ensure this filling counterfort sound construction, easy construction, easy accessibility, low production cost.
Detailed description of the invention
In order to understand the present invention in depth, below in conjunction with drawings and the specific embodiments, the present invention is described in detail.
See attached Fig. 1 and 2, the detachable filling counterfort of one provided by the invention, for filling tunnel, this filling counterfort comprises: sandbag stopping, the first fixed part, the second fixed part and supporting component.Sandbag stopping comprises: multiple sand pocket 12, and sand pocket 12 is solid and wrap up tailings, as a kind of preferred embodiment, fills and encapsulates tailings form sand pocket 12 with gunnysack or woven bag.The vertical section filling up whole tunnel vertically stacked by multiple sand pocket 12, the desired location of construction filling counterfort is stacked in by multiple sand pocket 12, compacting as far as possible in process of banking up, avoid there is larger space between each sand pocket 12, until pile with the vertical section in whole tunnel, namely the end face in tunnel pressed close to by the sand pocket 12 at top, and the side in tunnel pressed close to by the sand pocket 12 of both sides.
The first holddown groove of arc is offered at the top in tunnel, and the first holddown groove is positioned at the vertical section in tunnel.First fixed part comprises: the first fixed head 1 and the first flap 2, first fixed head 1 stretch into the first holddown groove; By concreting, the first fixed part is fixed in the first holddown groove.By the first fixed part processing in the arc corresponding with the first holddown groove, first fixed part is vertically stretched into the first holddown groove, make the arcwall face of the first flap 2 parallel with the arcwall face at top, tunnel, then by external equipment by filling concrete in the first holddown groove, after concrete setting, the first fixed head 1 is fixed in first holddown groove at top, tunnel.As a kind of preferred embodiment, the width of the first holddown groove is less than 100mm, the degree of depth is 200 ~ 300mm, and the thickness of the first fixed part is greater than 10mm, is L shape steel plate, the width of the first fixed head 1 is 300 ~ 400mm, on the first flap 2, multiple bolt hole is offered at interval, and position and the quantity of the position of bolt hole and quantity and multiple channel-section steel top end plate are corresponding, as a kind of preferred embodiment, this bolt hole is High-strength bolt hole, and specification is M10 ~ M12.
The second holddown groove is offered in the bottom in tunnel, and the second holddown groove is positioned at the vertical section in tunnel.Second fixed part comprises: the second fixed head 10 and the second flap 9, second fixed head 10 stretch into the second holddown groove, are fixed in the second holddown groove by the second fixed part by concreting.As a kind of preferred embodiment, the width of the second holddown groove is less than 100mm, and the degree of depth is 200 ~ 300mm, and the thickness of the second fixed part is greater than 10mm, and be L shape steel plate, the width of the second fixed head 10 is 300 ~ 400mm.By the second fixed part processing in the shape corresponding with the second holddown groove, second fixed part is vertically stretched into the first holddown groove, the second flap 9 is made to be vertically set on bottom tunnel in the second holddown groove, then by external equipment by filling concrete in the second holddown groove, be fixed in second holddown groove at top, tunnel by the second fixed head 10 after concrete setting, now the second flap 9 is positioned at the horizontal level higher than bottom surface, tunnel.On the second flap 9, multiple bolt hole is offered at interval, and position and the quantity of the position of bolt hole and quantity and multiple channel-section steel 7 top end plate are corresponding, and as a kind of preferred embodiment, this bolt hole is High-strength bolt hole, and specification is M10 ~ M12; On first flap 2 and the second flap 9, interval 280mm arranges a high-strength bolt hole.
Supporting component comprises: many channel-section steels 7, many channel-section steels 7 are vertically arranged side by side, and the end plate that is connected is welded respectively in top and the bottom of channel-section steel 7, and top end plate is identical with the steel plate thickness of bottom end plate, end plate and first flap 2 at top are connected, and end plate and second flap 9 of bottom are connected.Bolt hole is offered respectively in every top end plate of root channel-section steel 7 and the center of bottom end plate, and the bolt hole of each channel-section steel 7 top end plate is corresponding with the bolt hole on the first flap 2 respectively, is then connected by high-strength bolt.The bolt hole of each channel-section steel 7 bottom end plate is corresponding with the bolt hole on the second flap 9 respectively, is then connected by high-strength bolt.Channel-section steel 7 web of supporting component side offers multiple bolt hole at vertical direction interval, and channel-section steel 7 web of supporting component opposite side offers multiple bolt hole at vertical direction interval.As a kind of preferred embodiment, the specification of this high-strength bolt is M10 ~ M12.Be bolted and many channel-section steels 7 and the first fixed part and the second fixed part are fixed, the top of many channel-section steels 7 and tunnel body of wall and bottom are fixed, channel-section steel 7 can bear larger longitudinal loading, ensures that this filling counterfort has stronger vertical bearing capacity.
As preferably, this filling counterfort also comprises: multiple diagonal support 13 and multiple treatment hole 11.Multiple diagonal support 13, multiple diagonal support 13 is connected with supporting component, vertical section interval along tunnel is arranged side by side, vertical section width according to tunnel arranges a diagonal support 13 every 500mm, as a kind of preferred embodiment, diagonal support 13 selects steel work, and diagonal support 13 and ground-angle are not more than 45 °, the ability making this filling counterfort bear moment of flexure strengthens, and the sound construction protecting this filling counterfort is reliable.
Multiple treatment hole 11, is arranged on the bottom of filling barricade, through sand pocket 12 partition wall and supporting component, the water filtering performance of this filling counterfort can be improved, prevent the rear spalling of sand pocket 12 immersion for a long time, or structural failure after each steel part chance aqueous corrosion, cause the damage of this filling counterfort.
As preferably, sandbag stopping also comprises: filling paste and two drainage layers 14.Gap between multiple sand pocket 12 and tunnel inwall is filled up by filling paste.Two drainage layers 14 are separately positioned on the two ends of multiple sand pocket 12, and two drainage layers 14 are parallel to the vertical section in tunnel.
As preferably, filling counterfort also comprises: the 3rd fixed part and the 4th fixed part.The 3rd holddown groove is offered in side, tunnel, and the 3rd holddown groove is positioned at the vertical section in tunnel, and the 3rd fixed part comprises: the 3rd fixed head 4 and the 3rd flap 3.3rd fixed head 4 stretches into the 3rd holddown groove, is fixed in the 3rd holddown groove by the 3rd fixed part by concreting.Tunnel opposite side offers the 4th holddown groove, and the 4th holddown groove is positioned at the vertical section in tunnel, and the 4th fixed part comprises: the 4th fixed head 6 and the 4th flap 5.4th fixed head 6 stretches into the 4th holddown groove, is fixed in the 4th holddown groove by the 4th fixed part by concreting.As a kind of preferred embodiment, the width of the 3rd holddown groove and the 4th holddown groove is less than 100mm, the degree of depth is 200 ~ 300mm, the thickness of the 3rd fixed part and the 4th fixed part is greater than 10mm, for L shape steel plate, the width of the 3rd fixed head 4 and the 4th fixed head 6 is 300 ~ 400mm, and on the 3rd flap 3, multiple bolt hole is offered at interval, and position and the quantity of the position of bolt hole and quantity and the channel-section steel 7 web bolt hole of supporting component side are corresponding.On the 4th flap 5, multiple bolt hole is offered at interval, and position and the quantity of the position of bolt hole and quantity and the channel-section steel 7 web bolt hole of opposite side are corresponding; Be bolted and the channel-section steel 7 of supporting component side and the 3rd fixed part are fixed, be bolted simultaneously and the channel-section steel 7 of supporting component opposite side and the 4th fixed part are fixed, the both sides of supporting component and tunnel body of wall are fixed.As a kind of preferred embodiment, this bolt hole is High-strength bolt hole, and specification is M10 ~ M12; On 3rd flap 3 and the 4th flap 5, interval 150mm arranges a high-strength bolt hole.
As preferably, supporting component also comprises: multiple stiffener 8, and horizontal interval is arranged, multiple stiffener 8 welds with many channel-section steels 7 and is connected, and makes many channel-section steels 7 can bear larger transverse load, ensures that this filling counterfort has stronger horizontal bearing capacity.As a kind of preferred embodiment, 5 stiffeners 8 are welded and fixed with many channel-section steels 7, and stiffener 8 is horizontally disposed with, and width equals the width of tunnel vertical section.The middle part of channel-section steel 7 is welded and fixed three stiffeners 8, and the top and bottom of channel-section steel 7 are welded and fixed a stiffener 8 respectively.
The detachable filling counterfort of one provided by the invention is by arranging sandbag stopping, first fixed part, second fixed part, 3rd fixed part, 4th fixed part, supporting component, multiple diagonal support 13 and multiple treatment hole 11, wherein the first fixed part, second fixed part, 3rd fixed part and the 4th fixed part are fixed in the holddown groove in tunnel by concreting, again by the first fixed part, second fixed part, a firmly steel body frame construction is formed after 3rd fixed part and the 4th fixed part and supporting component are connected by bolt, this steel body frame construction and sandbag stopping and multiple diagonal support 13 form filling counterfort, realize the filling completely in tunnel, this filling counterfort is enable to bear larger horizontal and vertical load, bolted this filling counterfort of mode easy disassembly simultaneously.This filling counterfort sound construction, water filtering performance is better, easy construction, easy accessibility, low production cost.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.