CN1331394A

CN1331394A - Method for structure duct in ground

Info

Publication number: CN1331394A
Application number: CN00137114A
Authority: CN
Inventors: 徐明宇; 朴正权; 姜王圭
Original assignee: KT Corp
Current assignee: KT Corp
Priority date: 2000-06-27
Filing date: 2000-12-28
Publication date: 2002-01-16
Anticipated expiration: 2020-12-28
Also published as: HK1043821B; DE10063049A1; CN1174179C; HK1043821A1; JP2002013388A; KR100628432B1; DE10063049C2; KR20020001221A

Abstract

An semi-shield method comprises a process in which an underground pipe line excavator advances so as to form a pipe line between a start device and an arrival device, a process in which a pipe advances through the pipe line while inserting many intermediate jacks between pipes, a process in which many intermediate devices are formed to recover the buried intermediate jacks, and a process in which many manholes are provided in the start device, the arrival device, and the intermediate devices. The number of intermediate devices is equal to or larger than the number of intermediate jacks positioned between the start device and the arrival device. Construction cost and construction time can be reduced by providing the manholes without carrying out the ground stabilizing construction work by each intermediate device.

Description

Be used for being configured in the method for the pipeline in soil

The present invention relates to be used to be configured in half-shield method of the pipeline in soil; Specifically, the half-shield method that relates to a kind of cost saving and time.

In general, pipeline is among excacation is built into the soil later on, to imbed the communication line such as cable.At the point of branching of communication line, a manhole is installed is branched into a lot of communication line is connected on another or with communication line.

The construction of carrying out underground utility on densely populated zone or busy street can cause traffic congestion or bring inconvenience to the public.In addition, because built different facilities, be difficult in and carry out construction work under the situation of not destroying these facilities underground.

Recently, half-shield method is applied to reduce excacation.In half-shield method, a main jack, i.e. fluid power jack and a reaction force dunnage, i.e. concrete wall are placed and are configured in the first vertical shaft, so that with jack a shield machine and pipeline are pushed in the soil.In the time of among a pipeline is advanced to the soil fully, follows first pipeline another pipeline is advanced among the soil night.Repeat operation, among a plurality of pipelines are advanced to the soil one by one, arrive last vertical shaft, so structure is finished a under ground piping between first vertical shaft and last vertical shaft up to shield machine.After this, last vertical shaft is used as a new first vertical shaft for use in constructing continuous pipeline or manhole being configured on first vertical shaft and the last vertical shaft.Depression in the structure of this half-shield method, occurs, must on first vertical shaft and last vertical shaft, apply on-the-spot the preparation, so increased expenditure of construction and time in order to prevent.

In general, in order to be increased in the distance between first vertical shaft and the tail vertical shaft, jack in the middle of need between pipeline, adding., the diameter of pipeline greater than 2 meters situation under, the use of middle jack can be restricted, because it reclaims difficulty.

Fig. 1 a is the cross section view of explanation tradition half-shield method to Fig. 1 g.

As shown in Figure 1, half-shield method begins to carry out excavation in a pair of precalculated position to form first vertical shaft 1 and last vertical shaft 2, wherein, corresponding to the position of two adjacent manholes that are mounted, determines the position of first vertical shaft 1 and last vertical shaft 2.

After this,, first vertical shaft 1 and last vertical shaft 2 are applied on-the-spot preparation 8 for the depression that prevents to produce owing to the factors such as reaction force that cause by jack, and the operation that basis half-shield method is carried out subsequently, shown in Fig. 1 b.

Then, fluid power jack 3 and shield machine 4 are installed in the first vertical shaft 1 and are positioned at feeding mechanism 5 machineries around the first vertical shaft 1 with one and are electrically connected, shown in Fig. 1 c.Control order and pressure at feeding mechanism 5 assist following fluid power jack 3 and shield machine 4 to carry out work.

After this, will have the shield machine 4 that inserts pipeline 6 by means of fluid power jack 3 and be advanced among the soil, arrive last vertical shaft 2 up to shield machine 4, shown in Fig. 1 d.

So fluid power jack 3 and shield machine 4 disassemble from first vertical shaft 1 and last vertical shaft 2, shown in Fig. 1 e.

After this, by with last vertical shaft 2 as new first vertical shaft 1, repeat Fig. 1 a and go up the step of description, shown in Fig. 1 f to Fig. 1 e.

At last, after in all

vertical shafts

1,2 manhole 7 being installed all, with 1,2 backfill of all vertical shafts, shown in Fig. 1 g.

In half above-mentioned-shield method, there are many problems.At first, the position of vertical shaft is determined in the mounting point of needs consideration manhole.That is to say that first vertical shaft and last vertical shaft should be configured in the place that all will install manhole.Therefore, in the urban area that a plurality of manholes need be installed in short distance, the efficient of above-mentioned half-shield method is lower, because need carry out the scene preparation and transport equipment at first vertical shaft and last vertical shaft, for example jack, shield machine and supply equipment are so increased expenditure of construction and time.

In addition, if the size of pipeline is less, for example diameter is less than 2 meters, and the ultimate range between first vertical shaft and last vertical shaft is restricted, and for example 60 meters, reclaims because middle jack can not pass pipeline.

Therefore, the purpose of this invention is to provide a kind of can cost saving and the half-shield method of time.

According to the present invention, a kind of half-shield method is provided, may further comprise the steps: dig the soil to form first vertical shaft and last vertical shaft at a pair of preposition; First vertical shaft and last vertical shaft are applied on-the-spot the preparation; A main jack and shield machine are installed in the first vertical shaft; To have the shield machine that inserts pipeline and middle jack and be advanced among the soil, and arrive last vertical shaft up to shield machine, jack was set on the predetermined neutral position in the middle of the quilt centre was inserted between the pipeline; Main jack, shield machine and middle jack are disassembled from first vertical shaft, last vertical shaft and middle vertical shaft respectively; A plurality of manholes are installed on first vertical shaft, last vertical shaft and the middle vertical shaft; First vertical shaft, last vertical shaft and middle vertical shaft are carried out backfill.

Description of preferred embodiments in conjunction with the drawings, above and other purpose of the present invention and feature will become more obvious, wherein:

Fig. 1 a is the cross section view of explanation tradition half-shield method to Fig. 1 g;

Fig. 2 a is the cross section view of explanation half-shield method of the present invention to Fig. 2 f.

Fig. 2 a is half-shield method of the explanation according to the present invention to Fig. 2 f.

Shown in Fig. 2 a, it is that excavation in a pair of precalculated position is to form first vertical shaft 101 and last vertical shaft 102 that half-shield method begins.First vertical shaft 101 and last vertical shaft 102 will overlap with a manhole 107a and a remote manhole 107e that will install respectively, shown in Fig. 2 f, wherein be provided with a plurality of

manhole

107b, 107c, 107d between manhole 107a and manhole 107e.

Get back to Fig. 2 a, prepare 108 for first vertical shaft 101 and last vertical shaft 102 site of deployment, with prevent they with partly-the shield method duration of work is owing to different factors produce depression.

Then, fluid power master jack 103 and shield machine 104 are installed in the first vertical shaft 101 and are positioned at feeding mechanism 105 machineries around the first vertical shaft 101 with one and are electrically connected, shown in Fig. 2 b.Control order and pressure at feeding mechanism 105 are down auxiliary, and fluid power master jack 103 and shield machine 104 carry out work.

After this, will have the shield machine 104 that inserts pipeline 106 and middle jack 111 and be advanced among the soil, arrive last vertical shaft 102 up to shield machine 104, shown in Fig. 2 c.Middle jack 111 is inserted between the pipeline 106 and with feeding mechanism 105 machineries be electrically connected medially, so by means of fluid power master jack 103 and middle jack 111 pipeline is advanced among the soil.It should be noted that by means of jack 111 in the middle of using, can be increased in the distance between first vertical shaft 101 and the last vertical shaft 102.

So,, expose all underground middle jack 111 whereby, shown in Fig. 2 d by middle

vertical shaft

110a, 110b, the 110c of digging ground in preposition formation some.The position of middle

vertical shaft

110a, 110b, 110c be determined in case comprise underground in the middle of jack 111 and

manhole

107b, 107c between first vertical shaft 101 and last vertical shaft 102,107d (shown in Fig. 2 f), wherein in the middle of the quantity of

vertical shaft

110a, 110b, 110c be no less than the quantity of the middle jack 111 between first vertical shaft 101 and last vertical shaft 102.Therefore, jack 111 can be recovered and make

manhole

107a, 107b, 107c to be installed between first vertical shaft 101 and the last vertical shaft 102 in the middle of the formation of middle

vertical shaft

110a, 110b, 110c made.

So fluid power master jack 103, shield machine 104 and middle jack 111 disassemble from first vertical shaft 101, last vertical shaft 102 and middle

vertical shaft

110a, 110c respectively, shown in Fig. 2 e.

After this, a plurality of

manhole

107a, 107b, 107c and 107d are installed on first vertical shaft 101, last vertical shaft 102 and middle

vertical shaft

110a, 110b, the 110c, then with first vertical shaft 101, last vertical shaft 102 and middle

vertical shaft

110a, 110b, 110c, 110d backfill, shown in Fig. 2 f.

Compare with aforementioned disclosed half-shield method, half-shield method of the present invention is included in a plurality of middle vertical shaft between first vertical shaft and the last vertical shaft, wherein can manhole be installed not needing vertical shaft in the middle of each applied under the on-the-spot situation about preparing, so reduced the time of the expense of building.

In addition, middle jack can be applied under the situation of pipeline of reduced size, and for example diameter is less than 2 meters pipeline, because they can be recovered by middle vertical shaft, so increased distance between first vertical shaft and last vertical shaft.

Top the present invention is described certain embodiments, and clearly, those skilled in the art can make changes and improvements not breaking away under spirit of the present invention and protection scope of the present invention.

Claims

1. one and half-shield method may further comprise the steps:

Dig the soil to form first vertical shaft and last vertical shaft at a pair of preposition;

First vertical shaft and last vertical shaft are applied on-the-spot the preparation;

A main jack and shield machine are installed in the first vertical shaft;

To have the shield machine that inserts pipeline and middle jack and be advanced among the soil, and arrive last vertical shaft up to shield machine, jack was set on the predetermined neutral position in the middle of the quilt centre was inserted between the pipeline;

Main jack, shield machine and middle jack are disassembled from first vertical shaft, last vertical shaft and middle vertical shaft respectively;

A plurality of manholes are installed on first vertical shaft, last vertical shaft and the middle vertical shaft;

First vertical shaft, last vertical shaft and middle vertical shaft are carried out backfill.

2. one and half-shield method may further comprise the steps:

Advance a shield machine to be passed in soil between first vertical shaft and the last vertical shaft to form a hole;

Advance pipeline to pass this hole, wherein a plurality of middle jack of middle insertion between pipeline;

Form a plurality of middle vertical shafts to be recovered in underground middle jack; And

At first vertical shaft, last vertical shaft and middle vertical shaft a plurality of manholes are installed.

3. method according to claim 2 is characterized in that: comprise first vertical shaft, last vertical shaft are applied the on-the-spot step of preparing.

4. method according to claim 2 is characterized in that: by main jack and middle jack pipeline is advanced and pass this hole.

5. method according to claim 2 is characterized in that: the quantity of a plurality of middle jack continuously is no less than the quantity of the middle jack between first vertical shaft and last vertical shaft.