CN201339195Y

CN201339195Y - Cofferdam structure

Info

Publication number: CN201339195Y
Application number: CNU2008201824812U
Authority: CN
Inventors: 余江; 刘辉; 胡尧传
Original assignee: China Railway Sixth Group Co Ltd; Beijing Railway Construction Co of China Railway Sixth Group Co Ltd
Current assignee: China Railway Sixth Group Co Ltd; Beijing Railway Construction Co of China Railway Sixth Group Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-11-04
Anticipated expiration: 2018-12-31

Abstract

Disclosed is a cofferdam structure, which comprises at least two rows of timber piles, connectors between every two timber piles and bamboo enclosing sheets wrapped by geotextile, and is characterized in that the two rows of timber piles, the connectors and the bamboo enclosing sheets wrapped by geotextile are fixedly connected into a three-dimensional frame structure, the connectors laterally connect two timber piles corresponding to slope toes at both sides of the cofferdam together, and longitudinally connect one row of timber piles at each side of the cofferdam together, and the lateral and longitudinal connection of the connectors is arranged at the upper part and the lower part of each timber pile respectively; and the bamboo enclosing sheets wrapped by the geotextile plug gaps between each row of timber piles.

Description

A kind of cofferdam structure

Technical field:

The utility model belongs to the temporary works in water conservancy (river course) engineering, particularly a kind of cofferdam structure that is used for dash.

Background technology:

In the area, many waters in China's southern area and the north, cofferdam construction is very common.Existing cofferdam construction mainly adopts the construction of water squeezing method, promptly adopts and directly rockfills or banket in pool or river course, water is squeezed open formation cofferdam, back.It is slower that this method is built the speed in cofferdam, and the cofferdam soundness of erecting is strong, the cofferdam soil body is loose, and earth volume waste, cost increase.The more important thing is the area in formation of marine facies in southern China deposition, mud is deep, and cofferdam nature filled height is limited, fill too highly can collapse, sidesway.

On December 13rd, 2006, Shanghai Investigation Design ﹠ Research Institute discloses a kind of water-retaining cofferdam structure and job practices thereof, and its application number is: 200510026674.X.This invention provides a kind of water-retaining cofferdam structure, comprising: two campsheds, and at least two rhizosphere purlins, and it is fixedly connected on the horizontal direction of a described campshed respectively; At least one row's upper steel pull bar, it is fixedly connected between two campsheds; Described two campsheds enclose purlin, upper steel pull bar and are fixedly connected into three-dimensional frame construction; Long hydraulic reclamation packeted soil is filled in the described frame construction.Adopt the water-retaining cofferdam structure construction of this invention convenient, difficulty is less.But still have some comparatively obvious defects, many as the material category of needs, consume big, the cost height, cofferdam stability and antiseepage water-based not by force, complex procedures etc.

Summary of the invention:

The purpose of this utility model overcomes the deficiency of above-mentioned prior art exactly, provides a kind of material therefor kind few, consumes for a short time, and cost is low, cofferdam stability and the antiseepage water-based is strong, the easy cofferdam structure of operation.

For achieving the above object, the utility model has adopted following technical scheme: a kind of cofferdam structure, comprise at least two row's timbers, attachment between every timber, the bamboo of geotextiles parcel encloses sheet, the bamboo that it is characterized in that described two row's timbers, attachment, geotextiles parcel encloses the frame construction that sheet is fixedly connected into solid, described attachment laterally links together two timbers of toe place, both sides, cofferdam correspondence, and row's timber of the every side in cofferdam vertically linked together, described attachment horizontal and vertical is connected the timber upper and lower, and each is laid together; The bamboo of described geotextiles parcel encloses sheet the gap between every row's timber is blocked up.

The beneficial effects of the utility model are: one, and only adopted the bamboo of timber, attachment and geotextiles parcel to enclose sheet as material, needed material category is few.Two, timber only need adopt attachment to connect and need not that wingceltis is fixed and steel pole is fixed with enclosing again, and the material of consumption is few.Its three, the material price that is adopted is cheap, provides cost savings.Its four because the bamboo of adopting encloses sheet certain intensity is arranged, guaranteed to enclose the stability of the cofferdam skeleton system that sheet constitutes, and owing to adopted geotextiles to play certain antiseepage effect by timber, iron wire and bamboo.Its five, operation is simple, need not to enclose the fixing and steel pole of wingceltis and fixes, beats steps such as guide pile and packeted soil hydraulic reclamation.Its six, environmental protection, common cofferdam utilizes native stone to fill, the native hardcore that does not conform to environmental standard can pollute peripheral water body.

Description of drawings:

Fig. 1 is a schematic cross-sectional view of the present utility model.

Fig. 2 is the cross sectional representation of I-I direction shown in Figure 1.

The number in the figure explanation:

Timber-1, iron wire-2, the bamboo of geotextiles parcel encloses sheet-3, mud-4.

The specific embodiment:

With reference to Fig. 1, Fig. 2, a kind of cofferdam structure of the present utility model, comprise at least two row's timbers 1, attachment iron wire 2 between every timber 1, the bamboo of geotextiles parcel encloses sheet 3, it is characterized in that described two row's timbers 1, attachment iron wire 2, the bamboo of geotextiles parcel encloses sheet 3 and is fixedly connected into three-dimensional frame construction, described attachment iron wire 2 laterally links together two timbers 1 of toe place, both sides, cofferdam correspondence, and row's timber 1 of the every side in cofferdam vertically linked together, described attachment iron wire 2 horizontal and vertical is connected timber 1 upper and lower, and each is laid together; The bamboo of described geotextiles parcel encloses sheet 3 gap between every row's timber 1 is blocked up.

Specifically, at first, insert and to beat timber, with long 6 meters timber 1, according to the width in cofferdam, insert at design both sides, cofferdam toe and to beat, every side can be inserted according to actual conditions and be made a call to one and arrange or two arrange, and timber 1 spacing is uniform according to 0.5 meter; Then, with the fixing timber 1 of iron wire 2, two timbers, the 1 usefulness iron wire 2 of toe place, both sides, cofferdam correspondence is linked together, play the cross directional stretch effect, guarantee two timbers, 1 non-migration in the process of banketing, one row's timber 1 of the every side in cofferdam is linked together with iron wire 2 equally, play fixedly connected longitudinally effect, each lays together horizontal and vertical iron wire 2 in timber 1 upper and lower, be total to twice, connect by the horizontal vertical iron wire 2 of these twice, guarantee the stability and the certain intensity of timber 1 skeleton system, finished by the skeleton system that timber 1 and iron wire 2 constitute this moment, and the bamboo that utilizes geotextiles to wrap up again encloses sheet 3 gap between every row's timber is blocked up, form frame construction, guarantee that mud 4 is in frame space in filling out mud 4 processes; At last, fill mud 4, treat that the cofferdam skeleton system is finished after, utilize amphibious excavator from pool, ditch, to grasp mud 4 and insert in the skeleton, form the cofferdam entity.

As attachment iron wire 2 of the present utility model can be reinforcing bar, better effects if, but cost height.

Play the cross directional stretch effect and fixedly connected effect iron wire 2 longitudinally and can lay multiple tracks, better effects if, but cost height as of the present utility model in timber 1 upper and lower.

As timber 1 of the present utility model can be pine, concrete prefabricated purlin, better effects if.

Claims

1, a kind of cofferdam structure, comprise at least two row's timbers, attachment between every timber, the bamboo of geotextiles parcel encloses sheet, the bamboo that it is characterized in that described two row's timbers, attachment, geotextiles parcel encloses the frame construction that sheet is fixedly connected into solid, described attachment laterally links together two timbers of toe place, both sides, cofferdam correspondence, and row's timber of the every side in cofferdam is vertically linked together, and what described attachment was horizontal and vertical is connected each laying of timber upper and lower together; The bamboo of described geotextiles parcel encloses sheet the gap between every row's timber is blocked up.

2. cofferdam structure according to claim 1 is characterized in that: multiple tracks is laid in the timber upper and lower that is connected that described attachment is horizontal and vertical.

3. cofferdam structure according to claim 1 and 2 is characterized in that: described attachment is an iron wire.