CN206736979U - A kind of basement drain structure - Google Patents

Abstract

A kind of basement drain structure, it is related to construction drainage structure, including basement, basement includes one layer of basement and two layers of basement, one layer of weeper drain of latticed arrangement is provided with below one layer of basement, two layers of weeper drain of latticed arrangement are provided with below two layers of basement, outer wall of basement neighboring is provided with the outer weeper drain in hole, and one layer of weeper drain, two layers of weeper drain all connect with cheating outer weeper drain.This programme provides a kind of basement drain structure, and drainage effect is good；Reduce difficulty of construction and construction period；Without setting gully, you can lowering of watertable.

Description

A kind of basement drain structure

Technical field

Construction drainage structure is the utility model is related to, more particularly to a kind of basement drain structure.

Background technology

For the construction of underground structure that buried depth is relatively deep, hydrostatic water table is higher, Anti-floating design is the important composition of structure design Part.If structural anti-buoyancy is unsatisfactory for requiring, underground structure may be caused to float, bottom slab crack, cause different degrees of underground to be tied Structure destroys.

The method that China's Anti-floating design mainly uses " anti-" at present, that is, determine highest hydrostatic water table, dead load and water float The difference of power prevents basement structure from floating by using the mode of uplift pile, anti-float anchor rod or increase counterweight.This side Method is primarily present problems with：1st, construction costs height, serious waste of resources；2nd, the duration is often longer；3rd, such as measure of anti float fails, Lack structure self-insurance method.

Authorization Notice No. is that CN205712206U Chinese utility model discloses a kind of basement drain french drain, including ground Lower room bottom plate, dirt bed, concrete layer, the ditch for ponding discharge, concrete are formed between concrete layer and basement bottom board Layer is provided with multiple limbers, and the both ends of concrete layer are provided with thick brick fetal membrane, close to one end of basement bottom board on thick brick fetal membrane Multiple brick holes are equipped with, bed course is provided between concrete layer and basement bottom board, upper rubber pad, lower floor rubber are provided with bed course The upper surface of rubber cushion and spring, upper rubber pad and bed course, underlying rubber pad are contacted with the lower surface of bed course, and spring is set Between upper rubber pad and underlying rubber pad.The utility model provides another basement drain structure, has preferably anti- Floating effect.

Utility model content

The purpose of this utility model is to provide a kind of basement drain structure have preferable anti-floating effect, be advantageous to Lowering of watertable.

Above-mentioned purpose of the present utility model technical scheme is that：A kind of basement drain structure, Including basement, basement includes one layer of basement and two layers of basement, and the one of latticed arrangement is provided with below one layer of basement Layer weeper drain, two layers of basements lower section are provided with two layers of weeper drain of latticed arrangement, and outer wall of basement neighboring is provided with The outer weeper drain in hole, one layer of weeper drain, two layers of weeper drain all connect with cheating outer weeper drain.

By using above-mentioned technical proposal, one layer of weeper drain is respectively arranged below in one layer of basement and two layers of basement With two layers of weeper drain, using weeper drain the water in basement is smoothly discharged, without setting other such as precipitation Well construction can be achieved with draining so that hydrostatic water table absolute altitude meets Structural Design requirement.Without using dewatering well, using only row Water french drain can reduce water level, and drainage effect is good, while go back precipitation and reduce quantities, reduce construction cost and construction is difficult Degree.

Preferably, it is plain concrete bed course under one layer of basement bottom board, one layer of geotextiles, one layer of geotechnique is paved with below plain concrete bed course The infiltration coefficient of cloth is 1 × 10^-4~1 × 10^-3Cm/s, one layer of weeper drain is arranged under one layer of geotextiles, and wraps up in geotechnique outside Cloth.

By using above-mentioned technical proposal, plain concrete bed course is set below one layer of basement, plays the structure of enhancing basement The effect of intensity, waterproof, then set geotextiles to play a part of filtering, retention solid particle, soil erosion is reduced, improves infiltration Efficiency.

Preferably, it is plain concrete bed course under two layers of basement bottom board, be blotter below plain concrete bed course, blotter lower section Two layers of geotextiles are paved with, the infiltration coefficient of two layers of geotextiles is more than or equal to 1 × 10^-4Cm/s, two layers of weeper drain are arranged on two Under layer geotextiles, and geotextiles are wrapped up in outside.

By using above-mentioned technical proposal, two layers of basement bottom set blotter, play filtering, certain waterproof effect Fruit, then set geotextiles to play a part of filtering, retention solid particulate matter, tamp discharge structure.

Preferably, one layer of weeper drain and two layers of weeper drain section base are isometric, and two layers of weeper drain depth of section are big In one layer of weeper drain depth of section, and one layer of weeper drain and two layers of weeper drain have certain slope.

By using above-mentioned technical proposal, the height of two layers of weeper drain is more than one layer of weeper drain, further functions as anti- Water acts on, while two layers of weeper drain can drain more water more quickly, plays a part of protecting superstructure in time, and one Layer weeper drain and two layers of weeper drain have the discharge that certain slope is beneficial to water.

Preferably, cheat the bottom of outer weeper drain and top is backfilled with the tonerde of layered rolling, infiltration coefficient respectively Less than 1 × 10^-5cm/s。

By using above-mentioned technical proposal, the less clay of infiltration coefficient can drain water well, while can also rise To certain waterproof action, be advantageous to controlling water level.

Preferably, one layer of geotextiles, the sieve rate of staying of two layers of geotextiles are 95%.

By using above-mentioned technical proposal, the porosity of one layer of geotextiles and two layers of geotextiles is big, and hole is small, therefore has There is good draining barriering effect.

Preferably, one layer of geotextiles, the inner side of two layers of geotextiles spread and are filled with rubble, and rubble average grain diameter d50=20~ 30mm, heterogeneous system d60/d10<2.0, infiltration coefficient is more than 20cm/s.

By using above-mentioned technical proposal, rubble is laid on the inside of geotextiles, on the one hand plays reinforcement structure effect, the opposing party Play draining iris action in face.

Preferably, it is respectively equipped with water-level gauge in one layer of weeper drain and two layers of weeper drain.

By using above-mentioned technical proposal, water-level gauge is set in one layer of weeper drain and two layers of weeper drain, it is convenient with When monitor french drain in SEA LEVEL VARIATION, make corresponding measure.

To sum up, a kind of basement drain structure described in the utility model, drainage effect are good；Reduce difficulty of construction and apply The work cycle；Without setting gully, you can lowering of watertable.

Brief description of the drawings

Fig. 1 is the arrangement schematic diagram of basement drain structure；

Fig. 2 is the schematic diagram of two layers of weeper drain.

Reference：1st, one layer of basement；2nd, two layers of basement；3rd, one layer of weeper drain；4th, two layers of weeper drain；5th, cheat Outer weeper drain.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1 and 2, a kind of basement drain structure, including basement, basement include one layer of basement 1 and two layers Basement 2.It is plain concrete bed course under one layer of bottom plate of basement 1, is paved with one layer of geotextiles below plain concrete bed course, one layer of geotextiles is oozed Saturating coefficient is 1 × 10^-4Cm/s, one layer of geotextiles have one layer of weeper drain 3 of latticed arrangement, and wrap up in geotextiles outside.Two It is plain concrete bed course under the layer bottom plate of basement 2, is blotter below plain concrete bed course, two layers of geotextiles are paved with below blotter, The infiltration coefficient of two layers of geotextiles is more than or equal to 1 × 10^-4Cm/s, two layers of geotextiles have two layers of draining of latticed arrangement French drain 4, and geotextiles are wrapped up in outside.Outer wall of basement neighboring is provided with the outer weeper drain 5 in hole, one layer of weeper drain, 3, two layers of draining French drain 4 all connects with cheating outer weeper drain 5, cheats outer weeper drain 5 and is connected with the inspection shaft of city planting ductwork.

One layer of weeper drain 3 and two layers of section base of weeper drain 4 are isometric, and two layers of depth of section of weeper drain 4 are more than one The layer depth of section of weeper drain 3.The bottom and top of the outer weeper drain 5 in hole are backfilled with the tonerde of layered rolling respectively, ooze Saturating coefficient is less than 1 × 10^-5cm/s.One layer of geotextiles, the sieve rate of staying of two layers of geotextiles are 95%.One layer of geotextiles, two layers of geotextiles Inner side paving be filled with rubble, rubble average grain diameter is 20mm, rubble average grain diameter d50=20~30mm, heterogeneous system d60/d10< 2.0, infiltration coefficient is more than 20cm/s.Water-level gauge is respectively equipped with one layer of weeper drain 3 and two layers of weeper drain 4.

The construction procedure and method of basement periphery weeper drain are as follows：

1. after the completion of basement construction, the tonerde thick from the bottom backfill 200mm for cheating outer weeper drain 5, and point Layer rolls, and infiltration coefficient is less than 1 × 10^-5cm/s；

2. laying one layer of geotextiles, two layers of geotextiles, the weight of geotextiles is 300g/m2, and geotextiles stay sieve rate R=95%, Aperture O95 meets the 0.297mm≤O95≤d85 d85 of anti-filter coarse sands layer (d85 be), and one layer of geotextiles, two layers of geotextiles are oozed Saturating coefficient is 1 × 10^-4~1×10^-3cm/s；

3. filling out rubble in the inner side paving of one layer of geotextiles, two layers of geotextiles, rubble 20~30mm of average grain diameter, rubble is average Particle diameter d50=20mm, heterogeneous system d60/d10<2.0, the coefficient of permeability K of rubble>20cm/s；

4. the water for cheating outer weeper drain 5 is arranged by steel pipe to the inspection shaft that catchments to city planting ductwork（The design is based on municipal administration Pipe network water level is in normal operating conditions, the abnormal conditions such as surges if meeting water level in the very big well of precipitation infiltration amount, needs to take and arrange Applying reduces the head of french drain delivery port）；

5. backfill tonerde at the top for cheating outer weeper drain 5, it is desirable to layered rolling, reach coefficient of permeability K<1×10^{- 5}cm/s；

6. improving the denseness of the plain concrete bed course under basement bottom board, blotter and one layer are penetrated into when avoiding plain concrete from constructing Drainage channel is blocked in geotextiles.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (8)

1. a kind of basement drain structure, including basement, it is characterised in that：Basement includes one layer of basement（1）With two layers Basement（2）, one layer of basement（1）Lower section is provided with one layer of weeper drain of latticed arrangement（3）, two layers of basement （2）Lower section is provided with two layers of weeper drain of latticed arrangement（4）, outer wall of basement neighboring is provided with the outer weeper drain in hole（5）, One layer of weeper drain（3）, two layers of weeper drain（4）All with cheating outer weeper drain（5）Connection.

A kind of 2. basement drain structure according to claim 1, it is characterised in that：One layer of basement（1）Bottom plate It is plain concrete bed course down, one layer of geotextiles is paved with below the plain concrete bed course, the infiltration coefficient of one layer of geotextiles is 1 × 10^-4~1 × 10^-3Cm/s, one layer of weeper drain（3）It is arranged under one layer of geotextiles, and wraps up in geotextiles outside.

A kind of 3. basement drain structure according to claim 2, it is characterised in that：Two layers of basement（2）Bottom plate It is plain concrete bed course down, be blotter below plain concrete bed course, blotter lower section is paved with two layers of geotextiles, and two layers of geotextiles are oozed Saturating coefficient is more than or equal to 1 × 10^-4Cm/s, two layers of weeper drain（4）It is arranged under two layers of geotextiles, and wraps up in geotextiles outside.

A kind of 4. basement drain structure according to claim 1, it is characterised in that：One layer of weeper drain（3）With Two layers of weeper drain（4）Section base is isometric, two layers of weeper drain（4）Depth of section is more than one layer of weeper drain（3）Cut Face height, and one layer of weeper drain（3）With two layers of weeper drain（4）With certain slope.

A kind of 5. basement drain structure according to claim 1, it is characterised in that：Weeper drain outside the hole（5）'s Bottom and top are backfilled with the tonerde of layered rolling respectively, and infiltration coefficient is less than 1 × 10^-5cm/s。

A kind of 6. basement drain structure according to claim 3, it is characterised in that：One layer of geotextiles, two layers of soil The sieve rate of staying of work cloth is 95%.

A kind of 7. basement drain structure according to claim 3, it is characterised in that：One layer of geotextiles, two layers of soil The inner side paving of work cloth is filled with rubble, rubble average grain diameter d50=20~30mm, heterogeneous system d60/d10<2.0, infiltration coefficient is big In 20cm/s.

A kind of 8. basement drain structure according to claim 1, it is characterised in that：One layer of weeper drain（3）With Two layers of weeper drain（4）Inside it is respectively equipped with water-level gauge.