CN102733414A

CN102733414A - Water pool anti-floating method by combining square tapered anchored piers with horizontal stay bar

Info

Publication number: CN102733414A
Application number: CN2011100948373A
Authority: CN
Inventors: 何国富; 张玲云
Original assignee: China Petroleum and Chemical Corp; Sinopec Shanghai Engineering Co Ltd
Current assignee: China Petroleum and Chemical Corp; Sinopec Shanghai Engineering Co Ltd
Priority date: 2011-04-15
Filing date: 2011-04-15
Publication date: 2012-10-17
Anticipated expiration: 2031-04-15
Also published as: CN102733414B

Abstract

The invention discloses a water pool anti-floating method by combining square tapered anchored piers with a horizontal stay bar, comprising the following steps of: step 1, digging a foundation pit on a bottom plate of a water pool; step 2, uniformly and symmetrically arranging at least four anchored piers on the bottom plate of the water pool; connecting the anchored piers with the bottom plate of the water pool by utilizing the anchored piers to bear an unbalanced buoyancy force of the water pool; step 3, arranging a central line along each anchored pier and digging a trench shape for casting the horizontal stay bar on two central lines at the orthogonal direction; arranging an enlarged head on the horizontal stay bar in an outer side direction of the periphery of the water pool and arranging a soil body outside the enlarged head; and step 4, placing one layer of a geogrid on the horizontal stay bar and backfilling by utilizing backfilling materials. According to the water pool anti-floating method disclosed by the invention, a plurality of vertical square tapered reinforced concrete anchored piers are arranged on a pool bottom and the horizontal stay bar which is arranged at a certain depth of the pool bottom is combined, so that the vertical buoyancy force is changed into a lateral end resistance of the soil in the horizontal direction to be borne; and meanwhile, one layer of the geogrid is arranged on a horizontal stay bar system so that the double-anti-floating effect is realized.

Description

The pond anti-float method of the tapered anchor pier combined level strut in side

Technical field

The present invention relates to a kind of pond anti-float method, particularly relate to the pond anti-float method of the tapered anchor pier combined level of a kind of side strut.

Background technology

The anti-floating design of reinforced concrete water pond structure always is engineers problem full of interest in engineering design.The main mode that present anti-floating design is adopted has two kinds: passive anti-floating and active anti-floating.The main mode of passive anti-floating has anchoring method (the anchoring method comprises anti-floating pile foundation, rock soil anchor etc.) and ballast method, and (the ballast method is divided into the ballast body of resisting buoyancy and is placed on the last counterweight above the pond baseboard; Be placed on below the pond baseboard with the ballast body and the connector through a definite form is connected the following counterweight on the base plate, promptly so-called extension double recipe formula).Initiatively the main mode of anti-floating precipitation anti-floating (promptly with the precipitation method dewatering and block the infiltration of water) arranged, observe well anti-floating (the observation groundwater table also adopts water pump forced-ventilated water) and water inlet method anti-floating (allow underground water to get in the pond when pond is unloaded through the one way valve that is arranged on the base plate, during operation again with pool inner water with mechanical discharge) etc.

On the mechanism of action of existing anti-floating technology, can see; Passive anti-floating all is to be the Force transmission parts of opposing buoyancy with the pond baseboard; Or with buoyancy pass in the ground anchorage element and and then be delivered in the Rock soil Foundation, or balance weight body is directly resisted buoyancy with gravity.Because buoyancy is vertically upward forever, thus the characteristics of passive anti-floating also be with vertically to equilibrium of forces be main solution party to, embodying with " resisting " is principle.Initiatively anti-floating is a starting point with eliminating or dewatering then, reaches the purpose that reduces buoyancy, and embodying with " putting " is principle.Passive anti-floating is the method for designing that extensively adopts on the engineering, but owing to only carry out with the mode of " resist " in vertical direction, its construction cost is higher, and especially under pool construction deadweight and buoyancy differed bigger situation, cost was surprising especially.Though initiatively construction cost of several method is lower in the anti-floating, control problem such as maintenance and management cost because of what there was the runtime in it, it is not extensive to use the utmost point.

Summary of the invention

Technical problem to be solved by this invention provides the pond anti-float method of the tapered anchor pier combined level of a kind of side strut; It is through being provided with several tapered steel concrete anchor piers in vertical side at the bottom of the pond; Unite the triatic stay that is arranged in the beneath certain depth in pond; With vertically to buoyancy change into level to the lateral ends of soil hinder and bear, simultaneously one deck GSZ is set on the triatic stay system, through the backfill soil body of level certain depth under strut system and pond; Form the anti-floating balance weight body, play dual anti-floating effect.

The present invention solves above-mentioned technical problem through following technical proposals: the pond anti-float method of the tapered anchor pier combined level of a kind of side strut is characterized in that it may further comprise the steps:

Step 1, under pond baseboard, dig foundation ditch;

Step 2, at least four anchor piers are set symmetrically under pond baseboard, anchor pier is connected with pond baseboard through reinforcing bar, and anchor pier bears the uneven buoyancy in pond;

Step 3, arrange center line along each anchor pier, excavate out the trench shape that is used to build triatic stay at two orthogonal direction center lines, the periphery lateral direction is provided with enlarged footing to triatic stay in the pond, and the soil body is in the outside of enlarged footing;

Step 4, on triatic stay, place one deck GSZ, use the backfill backfill.

Preferably, said anchor pier to be shaped as vertical side tapered.

Positive progressive effect of the present invention is: reinforced concrete water pond of the present invention is widely used in each field of civil engineering.A large amount of pool constructions all exists the problem that the groundwater table height need carry out the anti-floating design in China's infrastructure.And the conventional anti-floating technical scheme that adopts at present is main with single vertical directly " opposing " basically, and general construction cost is high, therefore through changing the transfer mode of anti-floating system power, can practice thrift construction cost greatly.

Description of drawings

Structural representation when Fig. 1 works for the pond anti-float method of the tapered anchor pier combined level of side of the present invention strut.

Fig. 2 is the schematic cross-section of the A-A direction of Fig. 1.

The specific embodiment

Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technical scheme of the present invention.

As depicted in figs. 1 and 2, the pond anti-float method of the tapered anchor pier combined level of side of the present invention strut may further comprise the steps:

Step 1, dig the foundation ditch (degree of depth is calculated by uneven buoyancy size and confirmed to be made as H) of certain depth for 2 times at pond baseboard;

Step 2, at least four anchor piers 5 are set symmetrically pond baseboard 2 times, anchor pier 5 to be shaped as vertical side tapered, anchor pier 5 is connected with pond baseboard 2 through reinforcing bar, anchor pier 5 bears the uneven buoyancy in pond 1;

Step 3, arrange center lines along each anchor pier 5, excavate out the trench shape that is used to build triatic stay 7 at two orthogonal direction center lines, 1 peripheral lateral direction one end is provided with enlarged footing 8 to triatic stay 7 in the pond, and the soil body 4 is in the outside of enlarged footing 8; Triatic stay 7 is contract type inclined-plane with the joint face of anchor pier 5, is used to transmit the uneven buoyancy in pond on the anchor pier 5.Because joint face is band angle inclined-plane, the outside one end enlarged footing 8 of triatic stay 7 has the soil body 4 to stop, therefore; Buoyancy vertically upward is through behind this contact surface; To serve as to change the heart with triatic stay bellend and soil body contact surface lower limb, triatic stay 7 is rotated, because the soil body 4 exists; To stop triatic stay to rotate, and in triatic stay, produce horizontal axis pressure;

Step 4, on triatic stay 7, place one deck GSZ 6, with backfill 3 backfills.

Reinforced concrete water pond of the present invention is widely used in each field of civil engineering.A large amount of pool constructions all exists the problem that the groundwater table height need carry out the anti-floating design in China's infrastructure.And the conventional anti-floating technical scheme that adopts at present is main with single vertical directly " opposing " basically, and general construction cost is high, therefore through changing the transfer mode of anti-floating system power, can practice thrift construction cost greatly.

Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited appended claims.

Claims

1. the pond anti-float method of side's tapered anchor pier combined level strut is characterized in that it may further comprise the steps:

Step 1, under pond baseboard, dig foundation ditch;

Step 4, on triatic stay, place one deck GSZ, use the backfill backfill.

2. the pond anti-float method of the tapered anchor pier combined level of side as claimed in claim 1 strut is characterized in that, said anchor pier to be shaped as vertical side tapered.