34. ANEXO I (INFORMATIVO). EXCAVACIONES
## ANEXO I.1 MODELOS PARA EL DISEÑO DE TALUDES.
### Diseño de Taludes
Diagram of a simple slope for Soil Type A with a maximum depth of 6m and a 3/4:1 slope ratio.
**TALUD SIMPLE - GENERAL** **<u>TIPO DE SUELO A</u>**
Hasta 6 metros de profundidad talud máximo permitido de 3/4:1
Diagram of a simple slope for Soil Type A for short-term exposure (less than 24 hours) with a maximum depth of 3.6m and a 1/2:1 slope ratio.
**TALUD SIMPLE - TIEMPO CORTO\*** **<u>TIPO DE SUELO A</u>**
Hasta 3.6 metros de profundidad Talud máximo permitido ½:1 \*abierto 24 horas o menos
Diagram of a simple benched excavation for Soil Type A with a maximum depth of 6m, a 3/4:1 slope ratio, and a maximum bench height of 1.2m.
**BANCADA SIMPLE** **<u>TIPO DE SUELO A</u>**
Hasta 6 metros de profundidad talud máximo permitido de 3/4:1 altura máxima de bancada 1.2 metros
Diagram of a multiple benched excavation for Soil Type A with a maximum depth of 6m, a 3/4:1 slope ratio, and multiple benches of 1.2m and 1.5m heights.
**BANCADA MULTIPLE** **<u>TIPO DE SUELO A</u>**
Hasta 6 metros de profundidad talud máximo permitido de 3/4:1 alturas máximas de bancada mostradas
Diagram of an excavation with a vertical lower portion and an unsupported slope for Soil Type A, with a maximum vertical height of 1.05m and a total depth of 2.4m.
**PORCION MAS BAJA VERTICALMENTE CON TALUD SIN SOPORTE** **<u>TIPO DE SUELO A</u>**
Hasta 2.4 metros de profundidad. Lado vertical maximo permitido 1.05 metros. Talud máximo permitido 3/4:1
Diagram of an excavation with a vertical lower portion and a supported slope for Soil Type A, showing a support system extending at least 46cm above the vertical side.
**PORCION MAS BAJA VERTICALMENTE CON TALUD CON SOPORTE** **<u>TIPO DE SUELO A</u>**
Hasta 6 metros de profundidad. Talud máximo permitido ¾:1 El sistema de soporte/apoyo debe extenderse por lo menos 46 cm. sobre el lado vertical
Diagram of a simple slope in Type B soil showing a maximum depth of 6m and a 1:1 slope ratio.
## TALUD SIMPLE ## TIPO DE SUELO B
Hasta 6 metros de profundidad talud máximo permitido de 1:1
Diagram of a simple bench in Type B soil showing a maximum depth of 6m, a 1:1 slope ratio, and a maximum bench height of 1.2m.
## BANCADA SIMPLE ## TIPO DE SUELO B
Hasta 6 metros de profundidad talud máximo permitido de 1:1 altura máxima de bancada 1.2 metro.
Diagram of multiple benches in Type B soil for cohesive soils, showing a maximum depth of 6m, a 1:1 slope ratio, and a maximum bench height of 1.2m.
## BANCADA MULTIPLE ## TIPO DE SUELO B
Hasta 6 metros de profundidad talud máximo permitido de 1:1 Altura máxima de bancada mostrada
Diagram of a trench with a vertical lower portion and a sloped upper portion with support in Type B soil, showing a maximum depth of 6m, a 1:1 slope ratio, and support extending at least 46cm above the vertical side.
## PORCION MAS BAJA VERTICALMENTE CON ## TALUD CON SOPORTE ## TIPO DE SUELO B
Hasta 6 metros de profundidad talud máximo permitido de 1:1 el sistema de soporte/apoyo debe extenderse por lo menos 46 cm. sobre el lado vertical
Diagram of a simple slope in Type C soil showing a maximum depth of 6m and a 1 1/2:1 slope ratio.
## TALUD SIMPLE ## TIPO DE SUELO C
Hasta 6 metros de profundidad Talud máximo permitido 1 1/2: 1
Diagram of a trench with a vertical lower portion and a sloped upper portion with support in Type C soil, showing a maximum depth of 6m, a 1 1/2:1 slope ratio, and support extending at least 46cm above the vertical side.
## PORCION MAS BAJA VERTICALMENTE CON ## TALUD CON SOPORTE ## TIPO DE SUELO C
Hasta 6 metros de profundidad Talud máximo permitido 1 1/2: 1 el sistema de soporte/apoyo debe extenderse por lo menos 46 cm. sobre el lado vertical
Diagram of mixed soil layers B over A with slope indicators
# CAPAS MEZCLADAS # B SOBRE A
tion and a sloped upper portion with support in Type C soil, showing a maximum depth of 6m, a 1 1/2:1 slope ratio, and support extending at least 46cm above the vertical side.
## PORCION MAS BAJA VERTICALMENTE CON ## TALUD CON SOPORTE ## TIPO DE SUELO C
Hasta 6 metros de profundidad Talud máximo permitido 1 1/2: 1 el sistema de soporte/apoyo debe extenderse por lo menos 46 cm. sobre el lado vertical
Diagram of mixed soil layers B over A with slope indicators
# CAPAS MEZCLADAS # B SOBRE A Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1:1 y <sup>3</sup>/<sub>4</sub>:1
Diagram of mixed soil layers C over A with slope indicators
# CAPAS MEZCLADAS # C SOBRE A
Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1 <sup>1</sup>/<sub>2</sub>:1 y <sup>3</sup>/<sub>4</sub>:1
Diagram of mixed soil layers C over B with slope indicators
# CAPAS MEZCLADAS # C SOBRE B
Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1:1 y 1 <sup>1</sup>/<sub>2</sub>:1
Diagram of mixed soil layers A over B with slope indicators
# CAPAS MEZCLADAS # A SOBRE B
Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1:1
Diagram of mixed soil layers A over C with slope indicators
# CAPAS MEZCLADAS # A SOBRE C
Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1 <sup>1</sup>/<sub>2</sub>:1
Diagram of mixed soil layers B over C with slope indicators
# CAPAS MEZCLADAS # B SOBRE C
Hasta 6 metros de profundidad. Talud máximo permitido por cada capa mostrada arriba: 1 <sup>1</sup>/<sub>2</sub>:1
\* Clasificación referencial de suelos (Tipo A, B y C) según la OSHA (Occupational Safety & Health Administration).
# ANEXO I.2 MODELOS DE ENTIBADOS.
**Componentes mínimos de un sistema de apuntalamiento**
Componentes mínimos de un sistema de apuntalamiento: Refuerzo vertical, Protección, Larguero, Refuerzo en cruz
### <u>**Apuntalamiento de Madera (entibado)**</u>
<table> <thead> <tr> <th>Tabla OSHA</th> <th>Tipo de Suelo</th> <th>Dimensiones de la Madera</th> <th>Tipo de Madera (resistente a la flexion)</th> </tr> </thead> <tbody> <tr> <td>C-1.1</td> <td>A</td> <td>Actual *</td> <td></td> </tr> <tr> <td>C-1.2</td> <td>B</td> <td>Actual</td> <td>Roble mezclado o equivalente (Fb = 850 psi)</td> </tr> <tr> <td>C-1.3</td> <td>C</td> <td>Actual</td> <td></td> </tr> <tr> <td colspan="4"></td> </tr> <tr> <td>C-2.1</td> <td>A</td> <td>Nominal **</td> <td></td> </tr> <tr> <td>C-2.2</td> <td>B</td> <td>Nominal</td> <td>Abeto o equivalente (Fb = 1500 psi)</td> </tr> <tr> <td>C-2.3</td> <td>C</td> <td>Nominal</td> <td></td> </tr> </tbody> </table>
* Dimensión actual es la medida real de la madera de construcción aserrada áspera (8" x 12" ó 20.32 cm. x 30.48cm).
** Dimensión nominal es menos que la medida especificada de la madera de construcción vestida (S4S). (7.25" x 11.25" ó 18.41cm. x 77.41 cm.)
Clasificación referencial de suelos (Tipo A, B y C) según la OSHA (Occupational Safety & Health Administration).
# <u>ANEXO I.3 TABLAS: REQUISITOS MÍNIMOS DE LA MADERA SEGÚN TIPO DE SUELO</u>
*Apuntalamiento de Madera - Requisitos mínimos de la madera\** **Tipo de Suelo A - P<sub>a</sub> = 25 x H + 72 psf (2 ft Surcharge)**
<table> <thead> <tr> <th rowspan="4">PROF.<br/>DE LA<br/>ZANJA<br/>(m)</th> <th colspan="14">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTES **</th> </tr> <tr> <th colspan="6">PUNTALES</th> <th colspan="2">HORIZONTALES</th> <th colspan="6">VERTICALES</th> </tr> <tr> <th rowspan="2">HORIZ.<br/>ESPAC.<br/>(m)</th> <th colspan="5">ANCHO DE ZANJA (metros)</th> <th rowspan="2">VERT.<br/>ESPAC.<br/>(m)</th> <th rowspan="2">MEDIDA<br/>(PULG)</th> <th rowspan="2">VERT.<br/>ESPAC.<br/>(m)</th> <th colspan="5">MAXIMO ESPACIAMIENTO<br/>VERTICAL PERMITIDO<br/>(METROS)</th> </tr> <tr> <th>HASTA<br/>1.2</th> <th>HASTA<br/>1.8</th> <th>HASTA<br/>2.7</th> <th>HASTA<br/>3.6</th> <th>HASTA<br/>4.5</th> <th>CIERRE</th> <th>1.2</th> <th>1.5</th> <th>1.8</th> <th>2.1</th> </tr> </thead> <tbody> <tr> <td rowspan="4">1.5 A<br/>3</td> <td>HASTA<br/>1.8</td> <td>4x4</td> <td>4x4</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>No req</td> <td>---</td> <td> </td> <td> </td> <td> </td> <td>2x6</td> <td> </td> </tr> <tr> <td>HASTA<br/>2.4</td> <td>4x4</td> <td>4x4</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>No req</td> <td>---</td> <td> </td> <td> </td> <td> </td> <td> </td> <td>2x8</td> </tr> <tr> <td>HASTA<br/>3</td> <td>4x6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td> </td> <td>2x6</td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3.6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td> </td> <td> </td> <td>2x6</td> <td> </td> </tr> <tr> <td rowspan="4">3 A 4.5</td> <td>HASTA<br/>1.8</td> <td>4x4</td> <td>4x4</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>No req</td> <td>---</td> <td> </td> <td> </td> <td> </td> <td>3x8</td> <td> </td> </tr> <tr> <td>HASTA<br/>2.4</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td>2x6</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.2</td> <td>8x10</td> <td>1.2</td> <td> </td> <td> </td> <td>2x6</td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3.6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.2</td> <td>10x10</td> <td>1.2</td> <td> </td> <td> </td> <td> </td> <td>3x8</td> <td> </td> </tr> <tr> <td rowspan="4">4.5 A<br/>6</td> <td>HASTA<br/>1.8</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.2</td> <td>6x8</td> <td>1.2</td> <td>3x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>2.4</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td>3x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>1.2</td> <td>8x10</td> <td>1.2</td> <td>3x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3.6</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x3</td> <td>1.2</td> <td>10x10</td> <td>1.2</td> <td>3x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>MAS<br/>DE 6</td> <td colspan="14">NOTA (1)</td> </tr> </tbody> </table>
<table> <thead> <tr><th colspan="12"><strong>Tabla - Apuntalamiento de Madera - Requisitos mínimos de la madera \</strong>*<br/>Tipo de Suelo B - P<sub>a</sub> = 45 x H + 72 psf (2 ft Surc harge)</th></tr> <tr><th> </th><th colspan="11">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTES \*\*</th></tr> <tr><th> </th><th colspan="6">PUNTALES</th><th> </th><th colspan="2">HORIZONTALES</th><th colspan="2">VERTICALES</th></tr> <tr><th rowspan="2">PROF. DE LA ZANJA (m)</th><th rowspan="2">HORIZ. ESPAC. (m)</th><th colspan="5">ANCHO DE ZANJA (metros)</th><th rowspan="2">VERT. ESPAC. (m)</th><th rowspan="2">MEDIDA (PULG)</th><th rowspan="2">VERT. ESPAC. (m)</th><th colspan="2">MAXIMO ESPACIAMIENTO VERTICAL PERMITIDO (METROS)</th></tr> <tr> <th>HASTA 1.2</th> <th>HASTA 1.8</th> <th>HASTA 2.7</th> <th>HASTA 3.6</th> <th>HASTA 4.5</th> <th>CIERRE</th> <th>0.6</th> <th>0.9</th> </tr> </thead> <tbody> <tr> <td rowspan="4">1.5 A 3</td> <td>HASTA 1.8</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.5</td> <td>6x8</td> <td>1.5</td> <td> </td> <td> </td> <td>2x6</td> </tr> <tr> <td>HASTA 2.4</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.5</td> <td>8x10</td> <td>1.5</td> <td> </td> <td> </td> <td>2x6</td> </tr> <tr> <td>HASTA 3</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.5</td> <td>10x10</td> <td>1.5</td> <td> </td> <td> </td> <td>2x6</td> </tr> <tr> <td colspan="12">Ver Nota1</td> </tr> <tr><td rowspan="4">3 A 4.5</td><td>HASTA 1.8</td><td>6x6</td><td>6x6</td><td>6x6</td><td>6x8</td><td>6x8</td><td>1.5</td><td>8x8</td><td>1.5</td><td> </td><td>2x6</td></tr> <tr> <td>HASTA 2.4</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x10</td> <td>1.5</td> <td> </td> <td>2x6</td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x3</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td> </td> <td>2x6</td> <td> </td> </tr> <tr> <td colspan="12">Ver Nota1</td> </tr> <tr><td rowspan="4">4.5 A 6</td><td>HASTA 1.8</td><td>6x8</td><td>6x8</td><td>6x8</td><td>8x8</td><td>8x8</td><td>1.5</td><td>8x10</td><td>1.5</td><td>3x6</td><td> </td></tr> <tr> <td>HASTA 2.4</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x3</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>3x6</td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>8x3</td> <td>8x3</td> <td>8x3</td> <td>8x3</td> <td>3x3</td> <td>1.5</td> <td>12x12</td> <td>1.5</td> <td>3x6</td> <td> </td> <td> </td> </tr> <tr> <td colspan="12">Ver Nota1</td> </tr> <tr> <td>MAS DE 6</td> <td colspan="12">NOTA (1)</td> </tr> </tbody> </table>
<table> <thead> <tr> <th colspan="11"><strong>Tabla</strong> - *Apuntalamiento de Madera - Requisitos mínimos de la madera \**<br/><em>Tipo de Suelo C - P<sub>a</sub> = 80 x H + 72 psf (2 ft Surcharge)</em></th> </tr> <tr> <th rowspan="4">PROF.<br/>DE LA<br/>ZANJA<br/>(m)</th> <th colspan="10">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTE S **</th> </tr> <tr> <th colspan="6">PUNTALES</th> <th colspan="2">HORIZONTALES</th> <th colspan="2">VERTICALES</th> </tr> <tr> <th rowspan="3">HORIZ.<br/>ESPAC.<br/>(m)</th> <th colspan="5">ANCHO DE ZANJA (metros)</th> <th rowspan="3">VERT.<br/>ESPAC.<br/>(m)</th> <th rowspan="3">MEDIDA<br/>(PULG)</th> <th rowspan="3">VERT.<br/>ESPAC.<br/>(m)</th> <th>MAXIMO<br/>ESPACIAMIENTO<br/>VERTICAL<br/>PERMITIDO<br/>(METROS)</th> </tr> <tr> <th>HASTA<br/>1.2</th> <th>HASTA<br/>1.8</th> <th>HASTA<br/>2.7</th> <th>HASTA<br/>3.6</th> <th>HASTA<br/>4.5</th> <th>CIERRE</th> </tr> <tr> <th rowspan="4">1.5 A 3</th> <th>HASTA<br/>1.8</th> <th>6x8</th> <th>6x8</th> <th>6x8</th> <th>8x8</th> <th>8x8</th> <th>1.5</th> <th>8x10</th> <th>1.5</th> <th>2x6</th> </tr> <tr> <th>HASTA<br/>2.4</th> <th>8x8</th> <th>8x8</th> <th>8x8</th> <th>8x8</th> <th>8x10</th> <th>1.5</th> <th>10x12</th> <th>1.5</th> <th>2x6</th> </tr> <tr> <th>HASTA<br/>3</th> <th>8x10</th> <th>8x10</th> <th>8x10</th> <th>8x10</th> <th>10x10</th> <th>1.5</th> <th>12x12</th> <th>1.5</th> <th>2x6</th> </tr> <tr> <th>Ver Nota 1</th> <th> </th> <th> </th> <th> </th> <th> </th> <th> </th> <th> </th> <th> </th> <th> </th> <th> </th> </tr> </thead> <tbody> <tr> <td rowspan="4">3 A 4.5</td> <td>HASTA<br/>1.8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x10</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>2x6</td> </tr> <tr> <td>HASTA<br/>2.4</td> <td>8x10</td> <td>8x10</td> <td>8x10</td> <td>8x10</td> <td>10x10</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>2x6</td> </tr> <tr> <td>HASTA<br/>3</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>Ver Nota 1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td rowspan="4">4.5 A 6</td> <td>HASTA<br/>1.8</td> <td>8x10</td> <td>8x10</td> <td>8x10</td> <td>8x10</td> <td>10x10</td> <td>1.5</td> <td>12x12</td> <td>1.5</td> <td>2x6</td> </tr> <tr> <td>HASTA<br/>2.4</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA<br/>3</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>Ver Nota 1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td rowspan="2">MAS<br/>DE 6</td> <td colspan="10">NOTA (1)</td> </tr> <tr> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> </tbody> </table>
<table> <thead> <tr><th colspan="14">Tabla - Apuntalamiento de Madera Requisitos mínimos de la madera *<br/>Tipo de Suelo A- Pa = 25 x H + 72 psf (2 ft Surcharge)</th></tr> <tr><th colspan="14">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTES **</th></tr> <tr><th rowspan="3">PROF. DE LA ZANJA (m)</th><th colspan="7">PUNTALES</th><th colspan="2">HORIZONTALES</th><th colspan="4">VERTICALES</th></tr> <tr> <th rowspan="2">HORIZ. ESPAC. (m)</th> <th colspan="5">ANCHO DE ZANJA (metros)</th> <th rowspan="2">VERT. ESPAC. (m)</th> <th rowspan="2">MEDIDA (PULG)</th> <th rowspan="2">VERT. ESPAC. (m)</th> <th colspan="5">MAXIMO ESPACIAMIENTO VERTICAL PERMITIDO (METROS)</th> </tr> <tr> <th>HASTA 1.2</th> <th>HASTA 1.8</th> <th>HASTA 2.7</th> <th>HASTA 3.6</th> <th>HASTA 4.5</th> <th>CIERRE</th> <th>1.2</th> <th>1.5</th> <th>1.8</th> <th>2.4</th> </tr> </thead> <tbody> <tr><td rowspan="4">1.5 A 3</td><td>HASTA 1.8</td><td>4x4</td><td>4x4</td><td>4x4</td><td>4x4</td><td>4x6</td><td>1.2</td><td>No req</td><td>No req</td><td> </td><td> </td><td> </td><td>4x6</td></tr> <tr> <td>HASTA 2.4</td> <td>4x4</td> <td>4x4</td> <td>4x4</td> <td>4x6</td> <td>4x6</td> <td>1.2</td> <td>No req</td> <td>No req</td> <td> </td> <td> </td> <td> </td> <td> </td> <td>4x8</td> </tr> <tr> <td>HASTA 3</td> <td>4x6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td> </td> <td>4x6</td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3.6</td> <td>4x6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td> </td> <td> </td> <td>4x6</td> <td> </td> </tr> <tr><td rowspan="4">3 A 4.5</td><td>HASTA 1.8</td><td>4x4</td><td>4x4</td><td>4x4</td><td>6x6</td><td>6x6</td><td>1.2</td><td>No req</td><td>No req</td><td> </td><td> </td><td> </td><td>4x3</td></tr> <tr> <td>HASTA 2.4</td> <td>4x6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>6x8</td> <td>1.2</td> <td> </td> <td>4x6</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td> </td> <td> </td> <td>4x8</td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3.6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x10</td> <td>1.2</td> <td> </td> <td>4x6</td> <td> </td> <td>4x3</td> <td> </td> </tr> <tr><td rowspan="4">4.5 A 6</td><td>HASTA 1.8</td><td>6x6</td><td>6x6</td><td>6x6</td><td>6x6</td><td>6x6</td><td>1.2</td><td>6x8</td><td>1.2</td><td>3x6</td><td> </td><td> </td><td> </td></tr> <tr> <td>HASTA 2.4</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.2</td> <td>8x8</td> <td>1.2</td> <td>3x6</td> <td>4x12</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>1.2</td> <td>8x10</td> <td>1.2</td> <td>3x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3.6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.2</td> <td>8x12</td> <td>1.2</td> <td>3x6</td> <td>4x12</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td colspan="2">MAS DE 6</td> <td colspan="13">NOTA (1)</td> </tr> </tbody> </table>
NOTA (1)
<table> <thead> <tr> <th colspan="15"><strong>Tabla -</strong> *Apuntalamiento de Madera - Requisitos mínimos de la madera **</th> </tr> <tr> <th colspan="15"><em>Tipo de Suelo B - P<sub>a</sub> = 45 x H + 72 psf (2 ft Surcharge)</em></th> </tr> <tr> <th rowspan="2">PROF. DE LA ZANJA (m)</th> <th colspan="14">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTES **</th> </tr> <tr> <th colspan="7">PUNTALES</th> <th colspan="2">HORIZONTALES</th> <th colspan="5">VERTICALES</th> </tr> <tr> <th> </th> <th rowspan="2">HORIZ. ESPAC. (m)</th> <th colspan="5">ANCHO DE ZANJA (metros)</th> <th rowspan="2">VERT. ESPAC. (m)</th> <th rowspan="2">MEDIDA (PULG)</th> <th rowspan="2">VERT. ESPAC. (m)</th> <th colspan="5">MAXIMO ESPACIAMIENTO VERTICAL PERMITIDO (METROS)</th> </tr> <tr> <th> </th> <th>HASTA 1.2</th> <th>HASTA 1.8</th> <th>HASTA 2.7</th> <th>HASTA 3.6</th> <th>HASTA 4.5</th> <th>CLOSE</th> <th>0.6</th> <th>0.9</th> <th>1.2</th> <th>1.8</th> </tr> </thead> <tbody> <tr> <td rowspan="4">1.5 A 3</td> <td>HASTA 1.8</td> <td>4x6</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>1.5</td> <td>6x8</td> <td>1.5</td> <td> </td> <td> </td> <td> </td> <td>3x12<br/>4x8</td> <td>4x12</td> </tr> <tr> <td>HASTA 2.4</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>1.5</td> <td>8x8</td> <td>1.5</td> <td> </td> <td> </td> <td>3x8</td> <td>4x8</td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>4x6</td> <td>4x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>1.5</td> <td>8x10</td> <td>1.5</td> <td> </td> <td> </td> <td>4x8</td> <td> </td> <td> </td> </tr> <tr> <td>Ver Nota1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td rowspan="4">3 A 4.5</td> <td>HASTA 1.8</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x8</td> <td>6x8</td> <td>1.5</td> <td>8x8</td> <td>1.5</td> <td>3x6</td> <td>4x3</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 2.4</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x10</td> <td>1.5</td> <td>3x6</td> <td>4x3</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>3x6</td> <td>4x3</td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>Ver Nota1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td rowspan="4">4.5 A 6</td> <td>HASTA 1.8</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>1.5</td> <td>8x10</td> <td>1.5</td> <td>4x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 2.4</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>4x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>HASTA 3</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>12x12</td> <td>1.5</td> <td>4x6</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>Ver Nota1</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr> <tr> <td>MAS DE 6</td> <td colspan="14">NOTA (1)</td> </tr> </tbody> </table>
<table> <thead> <tr><th colspan="10"><strong>Tabla - Apuntalamiento de Madera - Requisitos mínimos de la madera \</strong>*<br/>Tipo de Suelo C - P<sub>a</sub> = 80 x H + 72 psf (2 ft Surcharge)</th></tr> <tr><th colspan="10">DIMENSION (ACTUAL) Y ESPACIAMIENTO DE LAS COMPONENTES **</th></tr> <tr> <th colspan="8">CROSS BRACES</th> <th colspan="2">WALES</th> <th>UPRIGHTS</th> </tr> <tr> <th rowspan="3">PROF. DE LA ZANJA (m)</th> <th rowspan="3">HORIZ. ESPAC. (m)</th> <th colspan="5">ANCHO DE ZANJA (metros)</th> <th rowspan="3">VERT. ESPAC. (m)</th> <th rowspan="3">MEDIDA (PULG)</th> <th rowspan="3">VERT. ESPAC. (m)</th> <th rowspan="2">MAXIMO ESPACIAMIENTO VERTICAL PERMITIDO (METROS)</th> </tr> <tr> <th>HASTA 1.2</th> <th>HASTA 1.8</th> <th>HASTA 2.7</th> <th>HASTA 3.6</th> <th>HASTA 4.5</th> </tr> <tr> <th> </th> <th> </th> <th> </th> <th> </th> <th>CIERRE</th> <th></th> </tr> </thead> <tbody> <tr> <td rowspan="4">1.5 A 3</td> <td>HASTA 1.8</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>8x8</td> <td>1.5</td> <td>8x8</td> <td>1.5</td> <td>3x6</td> </tr> <tr> <td>HASTA 2.4</td> <td>6x6</td> <td>6x6</td> <td>6x6</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x10</td> <td>1.5</td> <td>3x6</td> </tr> <tr> <td>HASTA 3</td> <td>6x6</td> <td>6x6</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>3x6</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td rowspan="4">3 A 4.5</td> <td>HASTA 1.8</td> <td>6x8</td> <td>6x8</td> <td>6x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>10x10</td> <td>1.5</td> <td>4x6</td> </tr> <tr> <td>HASTA 2.4</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>1.5</td> <td>12x12</td> <td>1.5</td> <td>4x6</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td rowspan="5">4.5 A 6</td> <td>HASTA 1.8</td> <td>8x8</td> <td>8x8</td> <td>8x8</td> <td>8x3</td> <td>8x3</td> <td>1.5</td> <td>10x12</td> <td>1.5</td> <td>4x6</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td colspan="10">Ver Nota1</td> </tr> <tr> <td colspan="2">MAS DE 6</td> <td colspan="9">NOTA (1)</td> </tr> </tbody> </table>