CN102493393A

CN102493393A - Construction scheme for throwing (filling) long sand-filled tubular sacks inside and outside anti-slide piles to protect feet

Info

Publication number: CN102493393A
Application number: CN2011104328577A
Authority: CN
Inventors: 杨梦云; 潘传柏; 张根喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-21
Filing date: 2011-12-21
Publication date: 2012-06-13

Abstract

The invention discloses a construction scheme for throwing (filling) long sand-filled tubular sacks inside and outside anti-slide piles to protect feet. The long sand-filled tubular sacks are thrown (filled) inside and outside anti-slide piles to protect the feet and bagged concrete and rock blocks are thrown to protect the piles, so that the sand-filled tubular sacks inside the underwater anti-slide piles to protect the feet and the piles protect the sand-filled tubular sacks, the sand-filled tubular sacks or the bagged concrete and rock blocks outside the piles to assist in protecting the piles and bottoms, wrap heads and keep the feet down, and by controlling the longitudinal declination of a riverbed and the lateral erosion of water on a bank base, the aims of not changing regime, not influencing the bank stability and flood control situation of a dike or the navigation and control and guide for existing channels, and protecting the stability of the bank feet in a bank collapse section for a long time are fulfilled. When the long sand-filled tubular sacks inside the piles to protect the feed are destroyed, lost, leaked and collapsed, the long sand-filled tubular sacks can be repaired in a dry season each year, and are convenient to maintain. That whether the long sand-filled tubular sacks or the bagged concrete and rock blocks outside the piles to protect the piles and the bottoms, wrap the heads and keep the feet down are required to be supplemented and reinforced can be determined according to an underwater monitoring result each year. The construction scheme is suitable for river reaches at important geographic positions, or river reaches of which the banks are subordinated in channel improvement on two banks of rivers but which have particularly important position in national economy and require improvement urgently, or important river reaches of which the channel improvement engineering is conflicted with channel control and guide engineering.

Description

(filling out) long sand filling pipe bag spats constructure scheme is thrown in the anti-skid pile medial and lateral under water

Technical field the present invention relates to (filling out) the long sand filling pipe bag spats of anti-skid pile medial and lateral throwing under water constructure scheme, belongs to the bank protection work technical field of construction of hydraulic engineering.

In the background technology hydraulic engineering, the collapse on the bank management measure is that the boundary is divided into bank protection and solid two aspects of pin with the design low water level generally.Promptly design the above enforcement of low water level slope protection works waterborne, implement spats engineering under water below the design low water level.To the regulation of collapse on the bank generally is to be main with spats under water, and bank protection waterborne is auxilliary.The common scheme of spats under water has groynes or rock head spats, jackstone (pillow), gabion spats, various types of mattress sinking spats, long sand filling pipe bag spats etc.There is the problem of following 4 aspects respectively in these constructure scheme: 1, groynes or rock head spats have changed offshore water flow structure and fluidised form; Dyke and existing navigation channel are unfavorable in the opposite bank, have run counter in the dredging waterway that principle and the Coordination Treatment that reasonable left and right banks takes into account controlled flood well, the requirement of the relation of aspect such as water drainage, shipping, irrigation, water supply, generating and environmental protection; 2, underwater dumped rockfill (pillow), gabion can not change its geological conditions, owing to the Yi Chongxing of riverbed substrate, have just increased the cushion coat of continuous sinking of one deck meeting and loss attenuation, are not suitable for and wash away violent section; 3, various types of mattress sinking spats only adapt under water the gradient and delay in 1: 2.0 and the little section of river-bed deformation, and incompatibility complex-terrain and existing piece stone are thrown the section of protecting; 4, long sand filling pipe bag spats is to build sandbag dam and suitable domatic to rising, and hydraulic reclamation silt is full to becoming silted up in collapsing nest then, is applicable to that nest collapses, and is not suitable for the bar shaped collapse on the bank.The essence of building the sandbag dam is with Sha Haipo, rock head spats, has changed offshore water flow structure and fluidised form, constriction the navigation channel, and damage when run-down when sand filling pipe bag, the sandbag dam can subside, collapse on the bank will take place once more.

Summary of the invention the objective of the invention is to utilize under water the anti-skid pile medial and lateral to throw (filling out) long sand filling pipe bag spats and mold-bagged concrete, piece stone fender pile; Implement under water the anti-skid pile inboard with the sand filling pipe bag spats; Protect sand filling pipe bag with stake; The outside auxiliary with sand filling pipe bag or mold-bagged concrete, piece stone fender pile, river bottom protection, wrap up in Tou He town pin, the vertical incision through controlling the offshore riverbed and the lateral corrasion of current opposite bank pin reach and do not change the river gesture; Stable navigation and the control with flood control situation and existing navigation channel of beach strand that does not influence the opposite bank dyke led, and protects the stable purpose of collapse on the bank section bank pin for a long time.When the long sand filling pipe bag damage of the inboard spats of pile foundation, loss, run-down, when subsiding,, can replenish in the dry season in every year, it is very convenient to safeguard.The underwater monitoring result in the pile foundation outside fender pile, river bottom protection, the long sand filling pipe bag of wrapping up in Tou He town pin or mold-bagged concrete, piece stone visual every year need to determine whether additional, reinforcing.

Description of drawings

Fig. 1 anti-skid pile medial and lateral under water throws (filling out) long sand filling pipe bag spats schematic cross-sectional view

Fig. 2 anti-skid pile medial and lateral under water throws (filling out) long sand filling pipe bag spats layout sketch map

1-pin groove among Fig. 1 and Fig. 2,2-low water platform, 3-be the long sand filling pipe bag of the inboard spats of anti-skid pile under water, the 4-pile foundation, and 5-is long sand filling pipe bag of fender pile (pin, the end) or mold-bagged concrete, piece stone outside the anti-skid pile under water, 6-riverbed, 7-slope protection works waterborne.

Specific embodiment the present invention can construct as follows:

(1) according to underwater topography and the bank slope form and the focused protection scope at scene, make a call to 1 row parallel with water front, safeguard that the anti-skid pile under water that bold shore is stable, height of pile top are higher than the local low water level 0.5m that designs;

(2) the pile foundation outside is by throwing long sand filling pipe bag or mold-bagged concrete, piece stone fender pile, river bottom protection in 1: 1.75～1: 2.5, wrap up in Tou He town pin, the throwing of pile foundation inboard, fills out long sand filling pipe bag spats until pushing up concordant with stake;

(3) build the pin groove at the bank pin by laying bricks or stones by 1.0 * 1.0m;

(4) press the thick tiling low water of 0.3m platform.

Concrete construction process: underwater concrete (steel pipe) pile foundation → pile foundation outside throws long sand filling pipe bag or mold-bagged concrete, the inboard throwing of piece stone → pile foundation, fills out the long sand filling pipe bag of fender pile (pin, the end) → build pin groove → making low water platform by laying bricks or stones

(filling out) long sand filling pipe bag spats constructure scheme is thrown in the anti-skid pile medial and lateral under water; Cause anti-skid pile height of pile top under water is higher than local design low water level 0.5m; When the inboard spats of pile foundation mould pillow or long sand filling pipe bag damage, loss, run-down, when subsiding; In the dry season in every year, can replenish, it is very convenient to safeguard.The underwater monitoring result in the long sand filling pipe bag in the pile foundation outside or mold-bagged concrete, piece stone visual every year determines whether to need to replenish, reinforcing.

Claims

1. the bank protection work application technology of a hydraulic engineering～(filling out) long sand filling pipe bag spats constructure scheme is thrown in the anti-skid pile medial and lateral under water; It is characterized in that the anti-skid pile inboard is with the sand filling pipe bag spats under water; Protect sand filling pipe bag with stake, the outside is assisted with sand filling pipe bag or mold-bagged concrete, piece stone fender pile, river bottom protection, is wrapped up in Tou He town pin.

2. constructure scheme according to claim 1 is characterized in that being parallel to water front, safeguards the anti-skid pile under water that bold shore is stable, and height of pile top is higher than local design low water level 0.5m.

3. constructure scheme according to claim 1 is characterized in that the throwing of the pile foundation outside long sand filling pipe bag or mold-bagged concrete, piece stone fender pile, river bottom protection, wraps up in Tou He town pin.

4. constructure scheme according to claim 1 is characterized in that the inboard throwing of pile foundation, fills out long sand filling pipe bag spats until concordant with the stake top.