Correction Slip No.18 to the Indian Railways Permanent Way Manual 2020

INDIAN RAILWAYS PERMANENT WAY MANUAL, 2020 ADDENDUM AND CORRIGENDUM SLIP NO.18 DATED 15.03.2024

1.0 The existing Table-III{Para 637(2) }under heading "Deep Screening with BCM (Ballast Cleaning Machine)" of IRPWM, 2020 shall be replaced by new Table-III{Para 637(2)) of IRPWM, 2020 as under:

Table- III

SCHEDULE OF SPEED RESTRICTION FOR DEEP SCREENING BY BCM FOLLOWED BY TAMPING AND STABILIZATION BY DYNAMIC TRACK STABILIZER (DTS) MACHINE

Details of work

Days of work

Speed Restriction

40 Kmph

Deep screening of track by BCM, ballast equalization followed by initial packing and initial stabilization by DTS in maximum settlement mode.

1st day

First round of tamping followed by stabilization of track by DTS in maximum settlement mode.

2nd day (1st Tamping)

40 Kmph

Ballasting for recoupment of ballast deficiency (if required), boxing of ballast section and tidying.

3rd day

40 Kmph

Boxing of ballast section and tidying.

4th day

40 Kmph

40 Kmph

Second round of tamping followed by stabilization of track by DTS in maximum settlement mode.

5th day (2nd Tamping)

Survey of track for design mode tamping as per annexure 2.16 of IRTMM, boxing of ballast section and tidying.

6th day

75 Kmph

Inspection of track, boxing of ballast section and tidying.

Third round of tamping in design mode followed by two rounds of stabilization of track by DTS in controlled settlement mode.

7th day

75 Kmph

8th day (3rd tamping)

110 Kmph

Footplate/last vehicle inspection and speed raising.

10th day

130 Kmph

Footplate/last vehicle inspection and speed raising

12th day

160 Kmph

Note: The period of schedule shown above can be suitably increased to suit local conditions of track consolidation. Full ballasting as per prescribed ballast profile to be ensured before the third round of tamping

2.0 Para 708 may be modified as under:

708 Speed Restrictions The speed restrictions to be imposed during various sequences of work are given in Table I, II and III which are as shown below:

Table-I-No Change

Table-II(A), II(B) and II(C)- No Change

A new Table-III(A) "Mechanized laying of track by Track Laying Equipment (TLE) followed by machine tamping without Dynamic Track Stablizer (DTS)" & new Table III(B) "Mechanized

laying of track by Track Relaying Train (TRT) followed by machine tamping without DTS"

are added as under:-

15-3.24