> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/examples/concrete-bridge-examples/example-concrete-u-girder-bridge/substructure-ex1-cug/pile-ex1-cug.md).

# Pile

This section defines pile properties for deep foundation elements.

{% hint style="info" %}
**Navigation:** Substructure > Pile
{% endhint %}

## Overview

Piles provide deep foundation support for substructure elements. This section covers pile section properties and layout definitions.

## Steps

### Step 1: Navigate to Pile

Navigate to **Pile** in the Substructure tree view.

### Step 2: Define Pile Properties

Configure pile section properties using the **PileSec** section defined in Properties.

### Step 3: Set Pile Layout

Define pile locations and spacing beneath pile caps.

## Verification

{% hint style="success" %}
After completing these steps, the pile foundations are defined and ready for construction stage assignment.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.openbrim.org/examples/concrete-bridge-examples/example-concrete-u-girder-bridge/substructure-ex1-cug/pile-ex1-cug.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.