CN103726571A

CN103726571A - Bilge well and inspection well water-non-stopping inner-seepage-proofing construction method

Info

Publication number: CN103726571A
Application number: CN201410015496.XA
Authority: CN
Inventors: 崔占明; 刘国良; 曹士星; 孙金雷; 王德印; 张振浩; 姜秀艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-01-14
Filing date: 2014-01-14
Publication date: 2014-04-16

Abstract

During construction, some seepage-proofing measures can be carried out in pipeline penetrating positions of well walls of a bilge well and an inspection well, but complete seepage-proofing effect cannot be achieved after operation for a while. Currently, the problem cannot be solved because no good methods or materials exist in China, the bilge well and the inspection well cannot be stopped easily for maintaining during operation, according to the practical technology, under a safe and normal state, lining wells of the bilge well and the inspection well are mounted without production stopping and working stopping, and a pollution source at a certain source is solved. The seepage-proofing capacity of 10 * 10-13 is achieved, the breaking elongation rate can reach the performance of 700%, and commonly, it is better to use an HDPE film with the thickness of 2.0mm. A specially-made lock belt and a sealer are used for sealing at a water in-out pipeline opening.

Description

Sink hole, the manhole interior Seepage method of not cutting off the water

Technical field

Fig. 1 (13) of sink hole, the manhole borehole wall duct penetration placethe anti-Fig. 1 (10) that blends drainage pipealthough also can take some seepage control measures in sealing antiseepage construction, all do not have complete antiseepage effect in operation a period of time process.In service do not have treated sewage, permeates the ground endlessly in water source.Also can constantly there is crackle in the antiseepage cement in the borehole wall, aggravated the pollution to underground water, and the domestic method not had and material solve this problem at present.In addition, sink hole, manhole are difficult to the maintenance of stopping in running, and our practical technique is under the normal state of safety, not stop production, do not stop work the liner well of sink hole, manhole is installed, and solves pollution sources herein.

Background technology

At present domestic manhole, the anti-permeation method of sink hole generally adopt the various fillers such as antiseepage cement, silica gel, pitch to carry out mending-leakage.But actual proof, this seepage control technique does not all have effect for a year or two.Simultaneously due to the bad grasp of impervious material proportioning, so seepage happens occasionally.

Summary of the invention

Select 2.0mm thick, elongation at break reaches 700%, and has 10 × 10 ^-13the HDPE antiseepage film of seepage capability is good.Pasting sink hole, Fig. 1 of manhole inwall welding liner well, at Fig. 1 (13) of sink hole, the manhole borehole wall duct penetration placecarry out special soldering, in Fig. 1 (10) drainage pipeplace seals antiseepage place.

Accompanying drawing explanation

Fig. 1: the liner well figure of manhole, sink hole.(1) aboveground edge; (2) serve as a contrast aboveground edge; (3) the lining borehole wall; (4) lock strap; (5) sealer; (6) cementation groove; (7) rivet; (8) borehole wall; (9) liner transverse tube; (10) drainage pipe; (11) lining bottom; (12) shaft bottom; (13) duct penetration place.

Fig. 2: fast pneumatic connector connection layout.(1) valve; (2) duct wall; (3) borehole wall; (4) air bag; (5) lock strap; (6) connecting hose; (7) flange; (8) sawtooth.

The specific embodiment

1. for example Fig. 2, first with quick connector by drainage pipe fig. 1 (10)connect.Sewage residual in manhole and sink hole and other foreign material are cleaned out.According to the type of sink hole or manhole, measure the borehole wall fig. 1 (8)and shaft bottom fig. 1 (12)the surface area of (borehole wall area and shaft bottom area below the 5cm of drainage pipe bottom), then cuts out and prefabricated HDPE antiseepage film.

2. first by the HDPE liner well shaft bottom of having welded fig. 1 (11)(lining well shaft bottom be one can folding basin body) be placed on the shaft bottom of sink hole or manhole fig. 1 (12), in order to prevent in periodic inspection process liner well shaft bottom fig. 1 (11)cause damage, put in the above a 10cm thick watermud grout groove fig. 1 (6), make cementation groove fig. 1 (6)apart from drainage pipe fig. 1 (10)10cm left and right, bottom, so that duct penetration place fig. 1 (13)welding.Then, from bottom to up the HDPE antiseepage film of cutting out is close to the borehole wall fig. 1 (8)welding, particularly processes especially at duct penetration place Fig. 1 (13) successively.First to drainage pipe fig. 1 (10)measure, cut out, weld one liner transverse tube Fig. 1 (9)(similar penetrate Magic cap), is pasting " Magic cap " the brim of a hat of circle the borehole wall and is welding, and can prevent to greatest extent like this duct penetration place fig. 1 (13)seepage.

3. liner transverse tube fig. 1 (9)be wrapped in drainage pipe fig. 1 (10)will inevitably there is certain gap, for preventing gap leakage, at liner transverse tube fig. 1 (9)the other end, use sealer fig. 1 (5)gap is filled up, with metal lockmaking band fig. 1 (4)fix and increase pressure.Because sewage mobile in sink hole, manhole contains many kinds of poisonous and harmful substances, there is the effects such as corrosion.So select the lock strap of stainless steel, sealer will have certain toughness and acidproof, alkaline-resisting, oil resistant, high temperature resistant (can reach 70 ℃) etc., finally reaches the object of long-term antiseepage.Apart from the aboveground edge of liner fig. 1 (2)rivet is fixed and stamped in 20cm place with bonding jumper by liner well figure 1 (7).

Claims

1. according to the type of sink hole or manhole, measure the borehole wall fig. 1 (8)and shaft bottom fig. 1 (12)[drainage pipe fig. 1 (10)borehole wall area and the shaft bottom area of bottom below 5cm] surface area, cut out HDPE antiseepage film and weld liner well.Welding liner well divides three parts: lining bottom fig. 1 (11), liner transverse tube fig. 1 (9), liner well the above part of liner transverse tube.

2. serve as a contrast as claimed in claim 1 bottom fig. 1 (11), in order to prevent in periodic inspection process liner well shaft bottom fig. 1 (11)cause damage, put in the above a 10cm thick watermud grout groove fig. 1 (6), make cementation groove fig. 1 (6)apart from drainage pipe fig. 1 (10)10cm left and right, bottom.

3. liner transverse tube as claimed in claim 1 fig. 1 (9), prefabricated liner transverse tube fig. 1 (9)the similar Magic cap having penetrated, is pasting " Magic cap " the brim of a hat of circle the borehole wall and is welding.At liner transverse tube fig. 1 (9)the other end, with acidproof, alkaline-resisting, oil resistant, resistant to elevated temperatures sealer fig. 1 (5)gap is filled up, used stainless steel lock strap fig. 1 (4)fix and increase pressure, wherein lock strap fig. 1 (4)pressure can regulate.

4. sealer as claimed in claim 3 fig. 1 (5), it is characterized in that having certain toughness acidproof, high temperature resistant, alkaline-resisting etc.

5. lock strap as claimed in claim 3 fig. 1 (4), it is characterized in that being difficult for getting rusty, the pressure of lock strap can free adjustment.